CN212647094U - Optical module - Google Patents

Abstract

The application provides an optical module, includes: the lower shell comprises a main plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are positioned on two sides of the main plate; the upper shell is connected with the lower shell in a covering mode and comprises a cover plate, a third side plate and a fourth side plate, wherein the third side plate and the fourth side plate are positioned on two sides of the cover plate; the first embedding bulge is connected with the first embedding groove in an embedded mode, and the second embedding bulge is connected with the second embedding groove in an embedded mode. The optical module that this application embodiment provided, through inlaying protruding cooperation realization between casing and the lower casing that inlays the groove and being connected, make the assembly structure of last casing and lower casing simple, make things convenient for the optical module assembly, and the assembly fastness is high.

Description

Optical module

Technical Field

The application relates to the technical field of optical fiber communication, in particular to an optical module.

Background

The optical communication technology can be applied to novel services and application modes such as cloud computing, mobile internet, video and the like. The optical module realizes the function of photoelectric conversion in the technical field of optical communication, is one of key devices in optical communication equipment, and the intensity of an optical signal input into an external optical fiber by the optical module directly influences the quality of optical fiber communication.

In the production and assembly process of the optical module, although the volume of the optical module is relatively small, the optical module includes a large number of devices, and the number of processes required for production and assembly is relatively large, which causes low production efficiency of the optical module. And then for promoting the production efficiency of optical module, put forward more big requirement to the assembly structure of optical module. Therefore, how to improve the production efficiency of the optical module by improving the structure of the optical module is a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an optical module, which facilitates assembly of the optical module.

In a first aspect, the present application provides an optical module, including:

the lower shell comprises a main plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are positioned on two sides of the main plate;

the upper shell is connected with the lower shell in a covering mode and comprises a cover plate, a third side plate and a fourth side plate, wherein the third side plate and the fourth side plate are positioned on two sides of the cover plate;

the first embedding bulge is connected with the first embedding groove in an embedded mode, and the second embedding bulge is connected with the second embedding groove in an embedded mode.

In a second aspect, the present application provides an optical module, including:

the lower shell comprises a main plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are positioned on two sides of the main plate;

the upper shell is connected with the lower shell in a covering mode and comprises a cover plate, a third side plate and a fourth side plate, wherein the third side plate and the fourth side plate are positioned on two sides of the cover plate;

the third embedding bulge is connected with the third embedding groove in an embedded mode, and the fourth embedding bulge is connected with the fourth embedding groove in an embedded mode.

The application provides an optical module: the lower shell comprises a main plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are arranged on two sides of the main plate; the first side plate is provided with a first embedding groove, the second side plate is provided with a second embedding groove, the third side plate is provided with a first embedding bulge, the fourth side plate is provided with a second embedding bulge, the first embedding bulge is embedded and connected with the first embedding groove, and the second embedding bulge is embedded and connected with the second embedding groove; or, the first side plate is provided with a third embedding protrusion, the second side plate is provided with a fourth embedding protrusion, the third side plate is provided with a third embedding groove, the fourth side plate is provided with a fourth embedding groove, the third embedding protrusion is embedded and connected with the third embedding groove, and the fourth embedding protrusion is embedded and connected with the fourth embedding groove. Furthermore, the optical module that this application provided realizes going up the cooperation between casing and the lower casing through inlaying the cooperation in protruding and inlaying the groove and is connected, makes things convenient for the assembly of optical module.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a connection relationship of an optical communication terminal;

FIG. 2 is a schematic diagram of an optical network unit;

fig. 3 is a schematic structural diagram of an optical module according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of an exploded structure of an optical module according to an embodiment of the present application;

fig. 5 is a first schematic structural diagram of a lower housing according to an embodiment of the present disclosure;

fig. 6 is a structural schematic diagram of a lower housing according to an embodiment of the present application;

fig. 7 is a first structural diagram of an unlocking component according to an embodiment of the present disclosure;

fig. 8 is a second structural diagram of an unlocking component according to an embodiment of the present application;

FIG. 9 is an exploded view of an unlocking member provided in an embodiment of the present application;

FIG. 10 is a schematic view of a lower housing and an unlocking member being coupled together according to an embodiment of the present disclosure;

fig. 11 is a first structural view of an upper housing according to an embodiment of the present disclosure;

fig. 12 is a second structural diagram of an upper housing according to an embodiment of the present disclosure;

fig. 13 is an assembly view of an upper housing and an unlocking member according to an embodiment of the present disclosure;

fig. 14 is an assembly diagram of an upper housing and a lower housing according to an embodiment of the present disclosure;

fig. 15 is a schematic cross-sectional view of an assembly of an upper shell, a lower shell and an unlocking component according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

In the following, some embodiments of the present application will be described in detail with reference to the drawings, and features in the following examples and examples may be combined with each other without conflict.

One of the core links of optical fiber communication is the interconversion of optical and electrical signals. The optical fiber communication uses optical signals carrying information to transmit in information transmission equipment such as optical fibers/optical waveguides, and the information transmission with low cost and low loss can be realized by using the passive transmission characteristic of light in the optical fibers/optical waveguides; meanwhile, the information processing device such as a computer uses an electric signal, and in order to establish information connection between the information transmission device such as an optical fiber or an optical waveguide and the information processing device such as a computer, it is necessary to perform interconversion between the electric signal and the optical signal.

The optical module realizes the function of interconversion of optical signals and electrical signals in the technical field of optical fiber communication, and the interconversion of the optical signals and the electrical signals is the core function of the optical module. The optical module is electrically connected with an external upper computer through a golden finger on an internal circuit board of the optical module, and the main electrical connection comprises power supply, I2C signals, data signals, grounding and the like; the optical module realizes optical connection with external optical fibers through an optical interface, the external optical fibers are connected in various ways, and various optical fiber connector types are derived; the method is characterized in that the electric connection is realized by using a golden finger at an electric interface, which becomes the mainstream connection mode of the optical module industry, and on the basis, the definition of pins on the golden finger forms various industry protocols/specifications; the optical connection mode realized by adopting the optical interface and the optical fiber connector becomes the mainstream connection mode of the optical module industry, on the basis, the optical fiber connector also forms various industry standards, such as an LC interface, an SC interface, an MPO interface and the like, the optical interface of the optical module also makes adaptive structural design aiming at the optical fiber connector, and the optical fiber adapters arranged at the optical interface are various.

Fig. 1 is a schematic diagram of connection relationship of an optical communication terminal. As shown in fig. 1, the connection of the optical communication terminal mainly includes the interconnection among the optical network terminal 100, the optical module 200, the optical fiber 101 and the network cable 103;

one end of the optical fiber 101 is connected with a far-end server, one end of the network cable 103 is connected with local information processing equipment, and the connection between the local information processing equipment and the far-end server is completed by the connection between the optical fiber 101 and the network cable 103; and the connection between the optical fiber 101 and the network cable 103 is made by the optical network terminal 100 having the optical module 200.

An optical interface of the optical module 200 is externally accessed to the optical fiber 101, and establishes bidirectional optical signal connection with the optical fiber 101; the electrical interface of the optical module 200 is externally connected to the optical network terminal 100, and establishes a bidirectional electrical signal connection with the optical network terminal 100; bidirectional interconversion of optical signals and electric signals is realized inside the optical module, so that information connection is established between the optical fiber and the optical network terminal; specifically, the optical signal from the optical fiber 101 is converted into an electrical signal by the optical module and then input to the optical network terminal 100, and the electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module and input to the optical fiber 101.

The optical network terminal is provided with an optical module interface 102, which is used for accessing an optical module 200 and establishing bidirectional electric signal connection with the optical module 200; the optical network terminal has a network cable interface 104, which is used for accessing the network cable 103 and establishing a bidirectional electrical signal connection (generally, an electrical signal of an ethernet protocol, which is different from an electrical signal used by an optical module in protocol/type) with the network cable 103; the optical module 200 is connected to the network cable 103 through the optical network terminal 100, specifically, the optical network terminal transmits a signal from the optical module to the network cable and transmits the signal from the network cable to the optical module, and the optical network terminal serves as an upper computer of the optical module to monitor the operation of the optical module. The optical network terminal is an upper computer of the optical module, provides data signals for the optical module and receives the data signals from the optical module, and a bidirectional signal transmission channel is established between the remote server and the local information processing equipment through the optical fiber, the optical module, the optical network terminal and a network cable.

Common local information processing apparatuses include routers, home switches, electronic computers, and the like; common optical network terminals include an optical network unit ONU, an optical line terminal OLT, a data center server, a data center switch, and the like.

Fig. 2 is a schematic diagram of an optical network terminal structure. As shown in fig. 2, the optical network terminal 100 has a circuit board 105, and a cage 106 is disposed on a surface of the circuit board 105; an electrical connector is arranged in the cage 106 and used for accessing an electrical interface (such as a gold finger) of the optical module; the cage 106 is provided with a heat sink 107, and the heat sink 107 has a projection such as a fin that increases a heat radiation area.

The optical module 200 is inserted into an optical network terminal, the electrical interface of the optical module is inserted into the electrical connector inside the cage 106, and the optical interface of the optical module is connected to the optical fiber 101.

The cage 106 is positioned on the circuit board, and the electrical connector on the circuit board is wrapped in the cage, so that the electrical connector is arranged in the cage; the optical module is inserted into the cage, held by the cage, and the heat generated by the optical module is conducted to the cage 106 and then diffused by the heat sink 107 on the cage.

Fig. 3 is a schematic view of an optical module according to an embodiment of the present disclosure, and fig. 4 is a schematic view of an exploded structure of an optical module according to an embodiment of the present disclosure. As shown in fig. 3 and 4, an optical module 200 provided in the embodiment of the present application includes an upper housing 300, a lower housing 400, an unlocking member 500, a circuit board 201, an optical sub-module 202, and a fiber optic adapter 203.

The upper case 300 is covered on the lower case 400 to form a packing cavity having two openings; the outer contour of the wrapping cavity is generally a square body, and specifically, the lower shell comprises a main plate and two side plates which are positioned at two sides of the main plate and are perpendicular to the main plate; the upper shell comprises a cover plate, and the cover plate covers two side plates of the upper shell to form a wrapping cavity; the upper shell can also comprise two side walls which are positioned at two sides of the cover plate and are perpendicular to the cover plate, and the two side walls are combined with the two side plates to realize that the upper shell covers the lower shell.

The two openings may be two ends (204, 205) in the same direction, or two openings in different directions; one opening is an electric port 204, and a gold finger of the circuit board extends out of the electric port 204 and is inserted into an upper computer such as an optical network terminal; the other opening is an optical port 205 for external optical fiber access; the photoelectric devices such as the circuit board 206, the transmitter sub-module 207 and the receiver sub-module 208 are positioned in the packaging cavity formed by the upper and lower shells.

The assembly mode of combining the upper shell 300 and the lower shell 400 is adopted, so that the optical sub-module 202, the optical fiber adapter 203 and other devices can be conveniently installed in the shells, and the upper shell 300 and the lower shell 400 form an outermost packaging protection shell of the optical module; the upper housing 300 and the lower housing 400 are generally made of metal materials, which is beneficial to realizing electromagnetic shielding and heat dissipation; generally, the housing of the optical module is not made into an integrated component, so that when devices such as a circuit board and the like are assembled, the positioning component, the heat dissipation component and the electromagnetic shielding component cannot be installed, and the production automation is not facilitated.

The unlocking member 500 is located on the outer wall of the package cavity/lower housing 400, and is used to realize the fixed connection between the optical module and the upper computer or release the fixed connection between the optical module and the upper computer.

The unlocking component 500 is provided with a clamping component matched with the upper computer cage; the end of the unlocking component can be pulled to enable the unlocking component to move relatively on the surface of the outer wall; the optical module is inserted into a cage of the upper computer, and the optical module is fixed in the cage of the upper computer by a clamping component of the unlocking component; by pulling the unlocking component, the clamping component of the unlocking component moves along with the unlocking component, so that the connection relation between the clamping component and the upper computer is changed, the clamping relation between the optical module and the upper computer is released, and the optical module can be drawn out from the cage of the upper computer.

The circuit board 201 is provided with circuit traces, electronic components (such as capacitors, resistors, triodes, and MOS transistors), and chips (such as an MCU, a clock data recovery CDR, a power management chip, and a data processing chip DSP).

The circuit board 201 connects the electrical devices in the optical module together according to the circuit design through circuit wiring to realize the electrical functions of power supply, electrical signal transmission, grounding and the like.

The circuit board is generally a hard circuit board, and the hard circuit board can also realize a bearing effect due to the relatively hard material of the hard circuit board, for example, the hard circuit board can stably bear a chip; when the optical transceiver is positioned on the circuit board, the rigid circuit board can also provide stable bearing; the hard circuit board can also be inserted into an electric connector in the upper computer cage, and specifically, a metal pin/golden finger is formed on the surface of the tail end of one side of the hard circuit board and is used for being connected with the electric connector; these are not easily implemented with flexible circuit boards.

A flexible circuit board is also used in a part of the optical module to supplement a rigid circuit board; the flexible circuit board is generally used in combination with a rigid circuit board, for example, the rigid circuit board may be connected to the optical transceiver device through the flexible circuit board.

The optical sub-module comprises a light emitting sub-module and a light receiving sub-module. As shown in fig. 4, the optical subassembly 202 provided in the embodiment of the present application is a transceiver integrated structure. Optionally, the optical sub-assembly 202 is located at an end of the circuit board 201, the optical sub-assembly 202 being physically separated from the circuit board 206. The optical sub-assembly 202 is connected to the circuit board 201 through a flexible circuit board.

The fiber adapter 203 is used to connect the optical sub-assembly 202 to an external optical fiber, and is used to transmit an optical signal generated by the optical sub-assembly 202 to the external optical fiber and transmit an optical signal input by the external optical fiber to the optical sub-assembly 202.

In the embodiment of the application, the optical module can be divided into an optical port part and a cavity part; the optical port portion is formed by the upper case 300 and the lower case 400 at the optical port of the optical module; the cavity part is a wrapped cavity formed by matching the upper shell 300 and the lower shell 400, and is mainly used for accommodating optical module internal devices such as the circuit board 201 and the optical sub-module 202.

Fig. 5 is a first structural diagram of a lower housing provided in the embodiment of the present application, fig. 6 is a second structural diagram of a lower housing provided in the embodiment of the present application, and fig. 5 and 6 show a basic structure of a lower housing provided in the embodiment of the present application.

As shown in fig. 5 and 6, the lower housing 400 provided in the embodiment of the present application includes a main plate 410, a first side plate 420 and a second side plate 430, where the first side plate 420 is located on one side of the main plate 410 in the length direction, and the second side plate 430 is located on the other side of the main plate 410 in the length direction. The main plate 410, the first side plate 420 and the second side plate 430 are used to form a wrapping cavity in cooperation with the upper housing 300.

Alternatively, recesses may be formed at the light opening at both sides of the lower case 400, and the width of the lower case 400 at the light opening is slightly narrower than that at other portions.

As shown in fig. 5, the head of the first side plate 420 is provided with a first spring groove 421, a first spring 421-1 is disposed in the first spring groove 421, the middle of the first side plate 420 is provided with a first groove 422 and a first locking groove 423, and the tail of the first side plate 420 is provided with a first embedding groove 424. The arrangement of the first spring groove 421, the first groove 422, and the first locking groove 423 facilitates the installation of the unlocking member 500. The first groove 422 is used for being matched and connected with the tail part of the unlocking component 500, and the tail part of the unlocking component 500 can move in the first groove 422 in the unlocking process of the optical module; the first locking groove 423 is used for limiting the tail of the unlocking member 500, and prevents the unlocking member 500 from moving beyond the limit in the unlocking and locking processes of the optical module. The head of the first side plate 420 is close to the optical port of the optical module, and the tail is far away from the optical port of the optical module.

The first insertion groove 424 is used for fixing the first side plate 420 and the upper housing 300. In the embodiment of the present application, the first embedding slot 424 is not limited to be disposed at the tail of the first side plate 420, and may also be disposed at other positions of the first side plate 420. When the first inserting groove 424 is provided at the rear portion of the first side plate 420, the assembling of the first inserting groove 424 is more facilitated. Optionally, as shown in fig. 5, the first embedding slot 424 is an oblique slot, that is, the extending direction of the first embedding slot 424 is not perpendicular to the plane of the main board 410, so as to improve the fixing strength between the first side plate 420 and the upper housing 300.

As shown in fig. 6, the head of the second side plate 430 is provided with a second spring groove 431, a second spring 431-1 is disposed in the second spring groove 431, the middle of the second side plate 430 is provided with a second groove 432 and a second locking groove 433, and the tail of the second side plate 430 is provided with a second embedding groove 434. The second spring groove 431, the second groove 432, and the second locking groove 433 are provided to further facilitate the installation of the unlocking member 500. The second groove 432 is used for being matched and connected with the tail part of the unlocking component 500, and the tail part of the unlocking component 500 can move in the second groove 432 in the unlocking process of the optical module; the second locking groove 433 is used for limiting the tail of the unlocking member 500, and preventing the unlocking member 500 from moving and exceeding the limit in the unlocking and locking processes of the optical module. The second groove 432 is matched with the first groove 422, and the second locking groove 433 is matched with the first locking groove 423, so that the unlocking member 500 is more reliably used.

The second insert groove 434 is used for the fitting and fixing of the second side plate 430 and the upper case 300. In the embodiment of the present application, the second insertion groove 434 is not limited to be disposed at the rear portion of the second side plate 430, and may be disposed at other portions of the second side plate 430. When the second insert groove 434 is provided at the rear portion of the second side plate 430, the assembly of the second insert groove 434 is more facilitated. Optionally, as shown in fig. 6, the second embedding slot 434 is an oblique slot, that is, the extending direction of the second embedding slot 434 is not perpendicular to the plane of the main board 410, so as to improve the fixing strength between the second side board 430 and the upper housing 300. The combined use of the first and second insertion grooves 424 and 434 helps to secure the connection between the lower case 400 and the upper case 300.

Further, the extending direction of the first damascene groove 424 is parallel to the extending direction of the second damascene groove 434. Optionally, the first and second insert grooves 424 and 434 are symmetrical with respect to a central axis of the main board 410, which further facilitates assembly of the first and second insert grooves 424 and 434.

In the embodiment of the present application, the head of the lower housing 400 further includes an upper cover plate 440, the side edges of the upper cover plate 440 are respectively connected to the head of the first side plate 420 and the head of the second side plate 430, and the upper cover plate 440 is used for covering the optical fiber adapter 203 and sealing the optical port of the optical module.

Further, in order to facilitate the assembly connection between the upper housing 300 and the lower housing 400, the lower housing 400 further includes an upper housing connecting portion 450, the upper housing connecting portion 450 is disposed at the right end of the upper cover 440, and the top surface of the upper housing connecting portion 450 is lower than the bottom surface of the upper cover 440. The upper case connecting portion 450 is provided with a stopper post and a screw hole, or the upper case connecting portion 450 is provided with a stopper hole and a screw hole. Optionally, the upper housing connecting portion 450 is provided with a limiting column 451 and a screw hole 452.

Furthermore, a third embedding protrusion 426 is further disposed on the first side plate 420, a fourth embedding protrusion 436 is further disposed on the second side plate 430, the third embedding protrusion 426 is used for the matching and fixing of the first side plate 420 and the upper housing 300, and the fourth embedding protrusion 436 is used for the matching and fixing of the second side plate 420 and the upper housing 300. Optionally, the third embedding protrusion 426 is disposed at the tail of the first side plate 420, such as at the tail edge of the first side plate 420, adjacent to the first embedding slot 424. Optionally, the fourth inlay protrusion 436 is disposed at a rear portion of the second side plate 430, e.g., at a rear edge of the second side plate 430, adjacent to the second inlay groove 434.

As shown in fig. 5, a plurality of first shielding grooves 427 are disposed on the outer wall of the first side plate 420, and the first shielding grooves 427 are used for electromagnetic shielding at a connection gap between the optical module and the upper computer. As shown in fig. 6, a plurality of second shielding grooves 437 are disposed on an outer wall of the second side plate 430, and the second shielding grooves 437 are used for electromagnetic shielding at a connection gap between the optical module and the upper computer. Optionally, the first shielding groove 427 and the second shielding groove 437 may be filled with an electromagnetic shielding material or a wave-absorbing material for absorbing electromagnetic waves transmitted thereto.

In order to provide more convenience for installation and use reliability of an optical module, the embodiment of the application provides an unlocking component. Fig. 7 is a first structural diagram of an unlocking member provided in an embodiment of the present application, fig. 8 is a second structural diagram of an unlocking member provided in an embodiment of the present application, and fig. 7 and 8 show a detailed structure of an unlocking member provided in an embodiment of the present application.

As shown in fig. 7 and 8, an unlocking member 500 provided in the embodiment of the present application includes a handle 510 and an unlocking device 520, the unlocking device 520 is connected to the lower housing 400, and one end of the handle 510 is connected to one end of the unlocking device 520. The handle 510 is used to facilitate the dragging of the unlocking member 500, and the dragging of the handle 510 moves the unlocking member 520. To facilitate the pulling of the handle 510 to connect the unlocking device 520, a first connection portion 511 is provided on the handle 510, and the handle 510 is connected to the unlocking device 520 through the first connection portion 511. The other end of the unlocking device 520 is provided with a locking hook, and the locking hook is used for realizing mechanical connection between the optical module and the cage and locking the optical module and the cage.

The present embodiment provides that the unlocking device 520 includes a first unlocking part 521 and a second unlocking part 522. One end of the first unlocking part 521 is connected with the handle 510, and the other end of the first unlocking part 521 is used for being matched and connected with the first side plate 420; by pulling the handle 510, the first unlocking portion 521 can move along the extending direction of the first side plate 420. One end of the second unlocking part 522 is connected with the handle, and the other end of the second unlocking part 522 is used for being matched with and connected with the second side plate 430; by pulling the handle 510, the second unlocking portion 522 can move along the extending direction of the first side plate 420. Optionally, one end of the first unlocking portion 521 and one end of the second unlocking portion 522 are respectively connected to the first connecting portion 511, and then the handle 510 is pulled, and the handle 510 drives the first unlocking portion 521 to move on the first side plate 420 and drives the second unlocking portion 522 to move on the second side plate 430 through the first connecting portion 511

In the embodiment of the present application, a first locking hook 524 is disposed at the other end of the first unlocking portion 521, and the first locking hook 524 is used for locking the first unlocking portion 521 with the cage; one end of the second unlocking part 522 is also provided with a second locking hook 525, and the second locking hook 525 is used for locking the second unlocking part 522 with the cage. The locking of optical module and cage is realized in the combination of first locking trip 524 on first unlocking portion 521 and second locking trip 525 on second unlocking portion 522, guarantees the locking fastness of optical module and cage, and the while is carrying out optical module and cage unblock in-process, makes unblock part 500 atress balanced, is convenient for guarantee unblock part 500's life.

In the embodiment of the present application, one end of the first unlocking portion 521 is provided with a first recess 526, one end of the second unlocking portion 521 is provided with a second recess 527, and the first recess 526 and the second recess 527 make the first unlocking portion 521 closer to the second unlocking portion 521 at the end than at other positions. The first recess 526 and the second recess 527 correspond to the head of the lower housing 400, and the projection of the first recess 526 on the first side plate 420 covers the first spring groove 421, and the projection of the second recess 527 on the second side plate 430 covers the second spring groove 431. The first recess 526 is provided with a first spring hook 5261, the first spring hook 5261 extends into the first spring slot 421, and the first spring hook 5261 is used for being matched and connected with the first spring 421-1; the second recess 527 is provided with a second spring hook 532, the second spring hook 532 extends into the second spring groove 431, and the second spring hook 532 is used for being matched and connected with the second spring 431-1. In the unlocking process of the optical module, the handle 510 is pulled, the handle 510 drives the unlocking device 520 to move through the first connecting part 511, and the unlocking device 520 moves to enable the first locking hook 524 of the first unlocking part 521 and the second locking hook 525 of the second unlocking part 522 to be separated from the mechanical connection of the cage, so that the optical module is unlocked from the cage; and in the process that the first locking hook 524 and the second locking hook 525 are mechanically connected and separated from the cage, the unlocking device 520 moves to enable the first spring hook 5261 to extrude the first spring 421-1, and the second spring hook 5271 to extrude the second spring 431-1 to enable the first spring 421-1 and the second spring 431-1 to generate deformation; when the locking hook is separated from the cage, the first spring 421-1 and the second spring 431-1 are deformed and restored to move the lower housing 400 toward the pulling direction of the handle 510, so that the unlocking member 500 is reset on the lower housing 400, and the optical module is separated from the cage.

In the assembling process of the optical module provided in the embodiment of the present application, the unlocking member 500 is assembled to the lower housing 400, that is, the first unlocking portion 521 is assembled to the first side plate 420 and the second unlocking portion 522 is assembled to the second side plate 430, and the first spring 421-1 and the second spring 431-1 are assembled into the first spring groove 421 and the second spring groove 431, respectively. To facilitate the assembly of the first spring 421-1 and the second spring 431-1, a first through hole 5262 is further formed in the first recess 526, and a second through hole 5272 is further formed in the second recess 527, wherein the first through hole 5262 communicates with the first spring groove 421, the second through hole 5272 communicates with the second spring groove 431, so that the first spring 421-1 is installed in the first spring groove 421 through the first through hole 5262, and the second spring 431-1 is installed in the second spring groove 431 through the second through hole 5272.

Further, to facilitate the assembly of the first unlocking portion 521 to the first side plate 420, a first gap 425 is provided below the first spring groove 421, and the first gap 425 communicates with the first spring groove 421. In the assembling process, the first spring hook 5261 enters the first spring slot 421 through the first notch 425, so that the situation that the unlocking component 500 is deformed due to the fact that the first spring hook 5261 is assembled into the first spring slot 421 by using external force can be effectively avoided, and the service life of the unlocking component 500 is ensured.

Further, to facilitate the assembly of the second unlocking part 522 to the second side plate 430, a second notch 435 is provided below the second spring groove 431, and the second notch 435 communicates with the second spring groove 431. In the assembling process, the second spring hook 5271 enters the second spring groove 431 through the second notch 435, so that the situation that the unlocking component 500 is deformed due to the fact that the second spring hook 5271 is assembled into the second spring groove 431 through external force can be effectively avoided, and the service life of the unlocking component 500 can be further ensured.

Fig. 9 is an exploded view of an unlocking member according to an embodiment of the present application. As shown in fig. 9, the unlocking member 500 according to the embodiment of the present application further includes a bridge portion 523, and one end of the bridge portion 523 is connected to one end of the first unlocking portion 521, and the other end is connected to one end of the second unlocking portion 522. The bridge 523 helps to secure the connection of the lift handle 510 to the first and second unlocking portions 521, 522. Preferably, the first connection portion 511 connects the bridge portion 523.

In the embodiment of the present application, the handle 510 may be an injection molded part, the unlocking unit 520 may be a sheet metal part, and the bridge portion 523 may be integrally formed with the first unlocking portion 521 and the second unlocking portion 522. In order to facilitate the connection of the handle 510 and the bridging portion 523 and ensure the firmness of the connection between the handle 510 and the bridging portion 523, the first connecting portion 511 is injection-molded to wrap the bridging portion 523. Further, the heads of the first unlocking part 521 and the second unlocking part 522 further include a plurality of through holes, so that the first unlocking part 521 and the second unlocking part 522 can be tightly connected during the injection molding process of the handle 510.

Preferably, the first and second spring grooves 421 and 431 are symmetrically disposed on the lower case 400, and the first and second unlocking parts 521 and 522 are symmetrical about a central axis of the unlocking member 500.

In this embodiment of the application, the first spring groove 421 and the second spring groove 431 are disposed on the lower housing 400, the corresponding unlocking component 500 includes the first unlocking portion 521 and the second unlocking portion 522, and the first spring hook 5261 and the second spring hook 5271 are correspondingly disposed on the first unlocking portion 521 and the second unlocking portion 522, so as to ensure that the stress is balanced in the process of unlocking the optical module by the unlocking component 500, facilitate unlocking the optical module, and help to ensure the service life of the unlocking component 500.

Fig. 10 is a schematic diagram of a lower housing and an unlocking member in a transfer configuration according to an embodiment of the present application. As shown in fig. 10, the first unlocking portion 521 is connected to the first side plate 420 in a fitting manner, the second unlocking portion 522 is connected to the second side plate 430 in a fitting manner, and the first connecting portion 511 is located at the bottom of the lower case 400. The first recess 526 is matched with the head of the first side plate 420, the second recess 527 is matched with the second side plate 430, the tail of the first unlocking part 521 is matched and connected with the first groove 422, and the tail of the second unlocking part 522 is matched and connected with the second groove 432. When the unlocking member 500 and the lower housing 400 do not displace relatively, the first locking hook 524 is located in the first locking groove 423, the tail end of the first locking hook 524 abuts against the bottom surface of the first locking groove 423, the second locking hook 525 is located in the second locking groove 433, and the tail end of the second locking hook 525 abuts against the bottom surface of the second locking groove 433; when the unlocking member 500 and the lower housing 400 are relatively displaced, the distal end of the first locking hook 524 disengages from the bottom surface of the first locking groove 423, and the distal end of the second locking hook 525 disengages from the bottom surface of the second locking groove 433. Therefore, the first locking groove 423 has a blocking and limiting effect on the first locking hook 524, and the second locking groove 433 has a blocking and limiting effect on the second locking hook 525, so that the first unlocking part 521 is effectively prevented from being separated from the first side plate 420 and the second unlocking part 522 is prevented from being separated from the second side plate 430 in the recovery process of the first spring 421-1 and the second spring 431-1 after unlocking is completed.

In the embodiment of the present application, in order to make the first connection portion 511 and the lower housing 400 well fit, the bottom of the lower housing 400 is provided with a second connection portion 460, and the first connection portion 511 is in fit connection with the second connection portion 460. Further, the second connection portion 460 is provided with a first guide groove 461 and a second guide groove 462, the first guide groove 461 and the second guide groove 462 extend in the longitudinal direction of the optical module, the first connection portion 511 is engaged with the first guide groove 461 and the second guide groove 462 and is movable in the extending direction of the first guide groove 461 and the second guide groove 462, and the first connection portion 511 is moved in the extending direction of the first guide groove 461 and the second guide groove 462 in the process of unlocking the optical module by the unlocking member 500.

As shown in fig. 10, the projection of the first unlocking portion 521 on the first side plate 420 covers the first shielding groove 427. When the first unlocking portion 521 is fitted to the first side plate 420, the first unlocking portion 521 covers the first shielding groove 427; when the optical module is inserted into an upper computer for use, electromagnetic radiation in the upper computer is transmitted to the first shielding groove 427, and the first shielding groove 427 can reflect and absorb the electromagnetic radiation for multiple times to achieve the electromagnetic shielding effect, so that the electromagnetic shielding effect of the upper computer can be improved through the first shielding groove 427. Accordingly, the projection of the second unlocking part 522 on the second side plate 430 covers the second shielding groove 437; when the optical module is inserted into an upper computer for use, electromagnetic radiation in the upper computer is transmitted to the second shielding groove 437, and the second shielding groove 437 can reflect and absorb electromagnetic radiation for multiple times to achieve an electromagnetic shielding effect, so that the electromagnetic shielding effect of the upper computer can be improved through the second shielding groove 437.

Fig. 11 is a first structural diagram of an upper housing provided in an embodiment of the present application, fig. 12 is a second structural diagram of an upper housing provided in an embodiment of the present application, and fig. 11 and 12 show a basic structure of an upper housing provided in an embodiment of the present application.

As shown in fig. 11 and 12, the upper case 300 provided in the embodiment of the present application includes a cover plate 310, a third side plate 320, and a fourth side plate 330, and the third side plate 320 and the fourth side plate 330 are disposed at both sides of the cover plate 310 in the length direction. The head of the third side plate 320 includes a first cantilevered flap 321 and the head of the fourth side plate 330 includes a second cantilevered flap 331. The tail of the third side plate 320 is provided with a first embedding protrusion 322, the tail of the fourth side plate 330 is provided with a second embedding protrusion 332, the position of the first embedding protrusion 322 corresponds to the first embedding groove 424, and the position of the second embedding protrusion 332 corresponds to the position of the second embedding groove 434. The first mounting protrusion 322 is adapted to be inserted into and connected to the first mounting groove 424, and the second mounting protrusion 332 is adapted to be inserted into and connected to the second mounting groove 434. Therefore, when the upper housing 300 is assembled with the lower housing 400, the first embedding protrusion 322 is embedded into the first embedding groove 424, and the second embedding protrusion 332 is embedded into the second embedding groove 434, so that the fixed assembly of the upper housing 300 and the lower housing 400 is realized, and the connection and fixation of the corresponding positions of the upper housing 300 and the lower housing 400 are realized.

The first mounting protrusion 322 is not limited to be disposed at the rear portion of the third side plate 320, and the second mounting protrusion 332 is not limited to be disposed at the rear portion of the fourth side plate 330, and is specifically disposed according to the positions of the first mounting groove 424 and the second mounting groove 434. The first inlay protrusion 322 is disposed at a rear portion of the third side plate 320, and the second inlay protrusion 332 is disposed at a rear portion of the fourth side plate 330, facilitating the assembly of the upper case 300 with the lower case 400. Further, when the first embedding groove 424 is an oblique groove, the first embedding protrusion 322 may be an oblique protrusion, which facilitates the first embedding protrusion 322 to be embedded into the first embedding groove 424, and facilitates to ensure the connection strength of the first embedding protrusion 322 and the first embedding groove 424. Accordingly, when the second damascene groove 434 is an oblique groove, the second damascene protrusion 332 may be an oblique protrusion, which facilitates the second damascene protrusion 332 to be embedded in the second damascene groove 434 and facilitates ensuring the connection strength of the second damascene protrusion 332 and the second damascene groove 434.

Further, a third insertion groove 323 is formed in the third side plate 320, and a fourth insertion groove 333 is formed in the fourth side plate 330. The third damascene protrusions 426 are adapted to be insert-coupled to the third damascene grooves 323, and the fourth damascene protrusions 436 are adapted to be insert-coupled to the fourth damascene grooves 333. Alternatively, the third inlay groove 323 is provided at the rear portion of the third side plate 320, and may correspond to the third inlay protrusion 426, and the third inlay groove 323 is provided at the edge of the rear portion of the third side plate 320 adjacent to the first inlay protrusion 322. Alternatively, the fourth mosaic recess 333 may be provided at a rear portion of the fourth side plate 330 corresponding to the third mosaic projection 426, and the fourth mosaic recess 333 is provided at an edge of the rear portion of the fourth side plate 330 adjacent to the second mosaic projection 332. When upper case 300 is assembled with lower case 400, third embedding protrusion 426 is embedded in third embedding groove 323, and fourth embedding protrusion 436 is embedded in fourth embedding groove 333, which helps to further secure the fixing assembly between upper case 300 and lower case 400.

In the embodiment of the present application, the first unlocking portion 521 is further provided with a first protrusion 528, and the second unlocking portion 522 is further provided with a second protrusion 529. First protruding 528 is used for the spacing of first unlocking portion 521 removal in-process when pulling handle 510, and second protruding 529 is used for the spacing of second unlocking portion 522 removal in-process when pulling handle 510, and first unlocking portion 521 and second unlocking portion 522 removal excessively when avoiding pulling handle 510 causes harm such as first locking trip 524, second locking trip 525, guarantees to a certain extent to unblock part 500's life. Alternatively, the first protrusion 528 is provided at the end of the first unlocking part 521, and the second protrusion 529 is provided at the end of the second unlocking part 522.

Optionally, a first locking groove 324 is further disposed on the third side plate 320 corresponding to the first protrusion 528, and a second locking groove 334 is further disposed on the fourth side plate 330 corresponding to the second protrusion 529. When the unlocking member 500 is assembled with the upper housing 300, the first protrusion 528 is fitted into the first card slot 324, and the second protrusion 529 is fitted into the second card slot 334.

Further, the first groove 340 is provided on the upper case 300 corresponding to the upper cover 440 on the lower case 400. The first groove 340 is fittingly coupled with the upper cover plate 440 such that the top surface of the upper cover plate 440 is flush with the top surface of the upper case 300. In order to facilitate the assembly of the upper housing 300 and the lower housing 400, the upper housing 300 is provided with a fixing hole 341 and a limiting hole 342. When the upper shell 300 and the lower shell 400 are assembled, the upper shell 300 and the lower shell 400 can be assembled and positioned by matching the limiting holes 342 and the limiting columns 451. The upper housing 300 and the lower housing 400 are assembled and positioned, and screws are used to pass through the fixing holes 341 and the screw holes 452, so that the head of the optical module can be assembled and fixed.

As shown in fig. 11, a plurality of third shielding grooves 325 are disposed on an outer wall of the third side plate 320, and the third shielding grooves 325 are used for electromagnetic shielding at a connection gap between the optical module and the upper computer. As shown in fig. 12, a plurality of fourth shielding grooves 335 are disposed on an outer wall of the fourth side plate 330, and the fourth shielding grooves 335 are used for electromagnetic shielding at a connection gap between the optical module and the upper computer. Optionally, the third shielding groove 325 and the fourth shielding groove 335 are filled with electromagnetic shielding material or wave-absorbing material for absorbing electromagnetic waves transmitted thereto.

Fig. 13 is an assembly schematic view of an upper housing and an unlocking component according to an embodiment of the present application. As shown in fig. 13, a projection of the first cantilever barrier 321 on the first unlocking part 521 covers the first spring hook 5261 and the first through hole 5262, and a projection of the second cantilever barrier 331 on the second unlocking part 522 covers the second spring hook 5271 and the second through hole 5272. The first and second cantilever baffles 321 and 331 are used for shielding the first spring hook 5261, the first through hole 5262, the second spring hook 5271 and the second through hole 5272, so as to help prevent the first spring 421-1 from popping out through the first through hole 5262 and the second spring 431-1 from popping out through the second through hole 5272 in the working and using process of the unlocking component 500, and prevent the first unlocking part 521 and the second unlocking part 522 from expanding outwards, so as to help ensure the service life of the unlocking component 500.

As shown in fig. 13, first protrusion 528 is received in first card slot 324 and second protrusion 529 is received in second card slot 334. When the optical module is unlocked by the pull handle 510, the left edge of the first card slot 324 is blocked and limited by the first protrusion 528, and the left edge of the second card slot 334 is blocked and limited by the second protrusion 529, so that the first unlocking part 521 and the second unlocking part 522 are blocked and limited, and the first unlocking part 521 and the second unlocking part 522 in the pull handle 510 are effectively prevented from moving beyond the limit.

The projection of the first unlocking part 521 on the third side plate 320 covers the third shielding groove 325. When the first unlocking part 521 is assembled to the third side plate 320, the first unlocking part 521 covers the third shielding groove 325; when the optical module is inserted into an upper computer for use, electromagnetic radiation in the upper computer is transmitted to the third shielding groove 325, and the third shielding groove 325 can reflect and absorb the electromagnetic radiation for multiple times to achieve the electromagnetic shielding effect, so that the electromagnetic shielding effect of the upper computer can be further improved through the third shielding groove 325. Accordingly, the projection of the second unlocking part 522 on the fourth side plate 330 covers the fourth shielding groove 335; when the optical module is inserted into an upper computer for use, electromagnetic radiation in the upper computer is transmitted to the fourth shielding groove 335, and the fourth shielding groove 335 can reflect and absorb the electromagnetic radiation for multiple times to achieve the electromagnetic shielding effect, so that the electromagnetic shielding effect of the upper computer can be further improved through the fourth shielding groove 335.

Fig. 14 is an assembly schematic diagram of an upper housing and a lower housing according to an embodiment of the present disclosure. As shown in fig. 14, after the upper case 300 and the lower case 400 are assembled, the first embedding protrusion 322 is embedded in the first embedding groove 424, and the third embedding protrusion 426 is embedded in the third embedding groove 323, so that the third side plate 320 of the upper case 300 and the first side plate 420 of the lower case 400 are assembled and fixed. In combination, the second embedding protrusion 332 is embedded into the second embedding groove 434 and the fourth embedding protrusion 436 is embedded into the fourth embedding groove 333, so that the tail parts of the upper shell 300 and the lower shell 400 are assembled and fixed. And then screws are adopted to pass through the fixing holes 341 and the screw holes 452 to assemble and fix the heads of the upper shell 300 and the lower shell 400, so that the upper shell 300 and the lower shell 400 are assembled and fixed. Therefore, in the optical module provided by the embodiment of the application, the assembling and fixing structure is simple, and the operation is convenient.

Fig. 15 is a schematic cross-sectional view of an assembly of an upper shell, a lower shell and an unlocking component according to an embodiment of the present application. As shown in fig. 15, after the upper housing, the lower housing and the unlocking member are assembled, the first cantilever baffle 321 shields the first recess 526 of the first unlocking portion 521 to enclose the first spring 421-1 in the first spring groove 421, the second cantilever baffle 331 shields the second recess 527 of the second unlocking portion 522 to enclose the second spring 431-1 in the second spring groove 431, and spring pop-up and outward expansion of the first unlocking portion 521 and the second unlocking portion 522 during pulling of the unlocking member are effectively prevented.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (10)

1. A light module, comprising:

the lower shell comprises a main plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are positioned on two sides of the main plate;

the upper shell is connected with the lower shell in a covering mode and comprises a cover plate, a third side plate and a fourth side plate, wherein the third side plate and the fourth side plate are positioned on two sides of the cover plate;

the first embedding bulge is connected with the first embedding groove in an embedded mode, and the second embedding bulge is connected with the second embedding groove in an embedded mode.

2. The optical module according to claim 1, wherein the first damascene groove and the second damascene groove are both oblique grooves, and an extending direction of the first damascene groove and an extending direction of the second damascene groove are parallel;

the first embedded protrusion and the second embedded protrusion are oblique protrusions, and the extending direction of the first embedded protrusion is parallel to the extending direction of the second embedded protrusion.

3. The optical module of claim 1, wherein a third embedding protrusion is further disposed on the first side plate, and a fourth embedding protrusion is further disposed on the second side plate;

a third embedding groove is formed in the third side plate, and a fourth embedding groove is formed in the fourth side plate;

the third embedding bulge is embedded and connected with the third embedding groove, and the fourth embedding bulge is embedded and connected with the fourth embedding groove.

4. The optical module of claim 3, wherein the first embedding groove and the third embedding protrusion are adjacently disposed at a tail portion of the first side plate, and the second embedding groove and the fourth embedding protrusion are adjacently disposed at a tail portion of the second side plate.

5. The optical module according to claim 1, wherein a plurality of first shielding grooves are formed in an outer wall of the first side plate, and a projection of the first unlocking portion on the first side plate covers the first shielding grooves; or the like, or, alternatively,

and a plurality of second shielding grooves are formed in the outer wall of the second side plate, and the second shielding grooves are covered by the projection of the second unlocking part on the second side plate.

6. The optical module according to claim 1, wherein a plurality of third shielding grooves are formed in an outer wall of the third side plate, and a projection of the first unlocking portion on the third side plate covers the third shielding grooves; or the like, or, alternatively,

and a plurality of fourth shielding grooves are formed in the outer wall of the fourth side plate, and the fourth shielding grooves are covered by the projection of the second unlocking part on the fourth side plate.

7. The optical module according to claim 1, wherein the upper housing and the lower housing are respectively provided with screw holes at an optical port portion of the optical module, and the upper housing and the lower housing are fixedly connected to the optical port portion of the optical module by screws.

8. The optical module according to claim 1, wherein the upper housing is provided with positioning posts at an optical port of the optical module, and the lower housing is provided with positioning holes at the optical port of the optical module, and the positioning posts are in fit connection with the positioning holes.

9. The optical module of claim 3, wherein the third embedding protrusion is disposed at an edge of the first side plate, and the fourth embedding protrusion is disposed at an edge of the second side plate.

10. A light module, comprising:

the lower shell comprises a main plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are positioned on two sides of the main plate;

the upper shell is connected with the lower shell in a covering mode and comprises a cover plate, a third side plate and a fourth side plate, wherein the third side plate and the fourth side plate are positioned on two sides of the cover plate;

the third embedding bulge is connected with the third embedding groove in an embedded mode, and the fourth embedding bulge is connected with the fourth embedding groove in an embedded mode.

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