CN214375428U

CN214375428U - Optical module

Info

Publication number: CN214375428U
Application number: CN202120774731.7U
Authority: CN
Inventors: 陈金磊; 徐发部; 司宝峰; 崔伟; 朱岩涛
Original assignee: Hisense Broadband Multimedia Technology Co Ltd
Current assignee: Hisense Broadband Multimedia Technology Co Ltd
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2021-10-08
Anticipated expiration: 2031-04-15

Abstract

The application provides an optical module, including: the unlocking device comprises a lower shell, an unlocking component and an upper shell. The lower shell is provided with a spring groove, a notch and a guide groove; wherein: one end of the guide groove is communicated with the spring groove; the gap is communicated with the spring groove. And a spring is arranged in the spring groove. The upper shell is provided with an embedding bulge which is embedded and connected with the notch. The unlocking component extends into the spring groove and is connected with the spring. In the assembling process, firstly, the unlocking component slides to the spring groove along the guide groove to complete the clamping connection of the unlocking component and the lower shell, and at the moment, an outer opening of the spring groove is connected with the unlocking component; and assembling the spring into the spring groove through the notch, covering the upper shell and the lower shell, connecting the upper shell and the lower shell in a covering manner, shielding the notch, and sealing the spring in the spring groove. The assembly process is convenient in the whole assembly process, and the spring is sealed in the spring groove after assembly, so that the spring is prevented from being separated.

Description

Optical module

Technical Field

The application relates to the technical field of 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, and is one of key devices in optical communication equipment. In order to realize the photoelectric and electro-optical conversion functions of the optical module, the optical module includes many electronic components and optical components.

The optical module is electrically connected with the upper computer, and a clamping mode is usually adopted between the optical module and the upper computer for convenience in installation and maintenance. The optical module is inserted into the cage of the upper computer, and the optical module is fixed in the cage of the upper computer by the engaging member of the unlocking member. And a spring is arranged on the unlocking component and used for driving the optical module to reset. The unlocking component is provided with a hook for hooking the spring.

However, in the existing structure, the installation process of the hook in the spring groove is inconvenient to connect and the assembly process is complex.

SUMMERY OF THE UTILITY MODEL

The application provides an optical module to solve the technical problem that the assembly of unblock part is complicated and the spring is deviate from easily.

In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:

the embodiment of the application discloses 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 first side plate is provided with a first spring groove, a first notch and a first guide groove; one end of the first guide groove is communicated with the first spring groove, and the other end of the first guide groove is connected with the main board; the first notch is arranged at the upper edge of the first side plate;

the second side plate is provided with a second spring groove, a second notch and a second guide groove; one end of the second guide groove is communicated with the second spring groove, and the other end of the second guide groove is connected with the main board; the second notch is arranged at the upper edge of the second side plate;

a first spring is arranged in the first spring groove, and a second spring is arranged in the second spring groove;

the upper shell is matched and connected with the lower shell 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 side plate is connected with the first side plate in a covering mode and used for shielding the first notch;

the fourth side plate is connected with the second side plate in a covering mode and used for shielding the second notch.

Compared with the prior art, the beneficial effect of this application is:

the application provides an optical module, including: the lower shell comprises a main plate, and a first side plate and a second side plate which are positioned on two sides of the main plate. The first side plate is provided with a first spring groove, a first notch and a first guide groove; one end of the first guide groove is communicated with the first spring groove, and the other end of the first guide groove is connected with the main board; the first notch is arranged at the upper edge of the first side plate. The second side plate is provided with a second spring groove, a second notch and a second guide groove; one end of the second guide groove is communicated with the second spring groove, and the other end of the second guide groove is connected with the main board; the second notch is arranged on the upper edge of the second side plate. A first spring is arranged in the first spring groove, and a second spring is arranged in the second spring groove. And the unlocking component is clamped with the lower shell. The upper shell is connected with the lower shell in a matched 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 located on two sides of the cover plate. The third side plate is connected with the first side plate in a covering mode and used for shielding the first notch; the fourth side plate is connected with the second side plate in a covering mode and used for shielding the first notch. During assembly, firstly, the unlocking component slides to the spring groove along the guide groove to complete clamping connection of the unlocking component and the lower shell, and at the moment, an opening on the outer side of the spring groove is connected with the unlocking component; and then the spring is assembled into the spring groove through the notch, the upper shell and the lower shell are covered, the position of the notch is shielded, and the spring is sealed in the spring groove. The assembly process is convenient in the whole assembly process, and the spring is sealed in the spring groove after assembly, so that the spring is prevented from being separated.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the 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 structural diagram of an unlocking component according to an embodiment of the present application;

FIG. 8 is an exploded view of an unlocking member provided in an embodiment of the present application;

FIG. 9 is a schematic view of an assembly of a lower housing and an unlocking member provided in an embodiment of the present application;

FIG. 10 is a first block diagram of an upper housing according to an embodiment of the present disclosure;

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

FIG. 12 is an enlarged view of the dotted line structure of FIG. 11;

fig. 13 is an assembly diagram of an upper housing and a lower housing according to an embodiment of the present disclosure;

fig. 14 is a partially broken away schematic view of fig. 13.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, 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 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 201 and the optical sub-module 202 are positioned in a packaging cavity formed by the upper shell and the lower shell.

The light port 205 is provided with the tail plug 600 for shielding the light port, so that external dust and moisture are prevented from entering the package cavity, and the service life of the optical module is prolonged.

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, and the optical sub-assembly 202 is physically separated from the circuit board 201. 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.

Fig. 5 is a first schematic structural diagram of a lower housing according to an embodiment of the present disclosure; fig. 6 is a second schematic structural diagram of a lower housing according to an 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 head of the first side plate 420 and the head of the second side plate 430 are recessed toward the inside of the optical module, and the head width of the lower case 400 is slightly narrower than the 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, and the middle of the first side plate 420 is provided with a first groove 422 and a first locking groove 423. 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.

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 provided in the second spring groove 431, and the middle of the second side plate 430 is provided with a second groove 432 and a second locking groove 433. 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.

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 structural diagram of an unlocking component according to an embodiment of the present application, and fig. 8 is an exploded view of the unlocking component according to the embodiment of the present application. 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, so as to drag the handle 510, 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 522 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 522 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 5271, the second spring hook 5271 extends into the second spring groove 431, and the second spring hook 5271 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 this embodiment, in order to facilitate the installation of the first spring hook 5261 inside the first spring slot 421, a first guide slot 424 is disposed below the first spring slot 421, one end of the first guide slot 424 is communicated with the first spring slot 421, and the other end is connected to the main board 410 of the lower housing 400. In the installation process, the first spring hook 5261 is firstly sleeved along the first guide groove 424 from bottom to top, so that the situation that the first spring hook 5261 is pulled outwards to cause stress on the unlocking component 500 and influence on the service life is avoided; the first spring hook 5261 is then pushed along the first spring slot 421 from the left side to the right side.

In the embodiment of the application, the adjusted upper and lower positions are defined by the position relationship between the upper shell and the lower shell, the upper shell is positioned above the lower shell, and the lower shell is positioned below the upper shell; the left is the direction of the optical port 205 and the right is the direction of the electrical port 204.

Also, in order to facilitate the installation of the second spring hook 5271 into the second spring groove 431, a second guide groove 434 is provided below the second spring groove 431, and one end of the second guide groove 434 communicates with the second spring groove 431 and the other end is connected to the main board 410 of the lower case 400. In the installation process, the second spring hook 5271 is firstly sleeved along the second guide groove 434 from bottom to top, so that the situation that the unlocking component 500 is stressed and the service life of the unlocking component is influenced due to the fact that the second spring hook 5271 needs to be pulled outwards is avoided; the second spring hook 5271 is then pushed in along the second spring groove 431 from the left to the right.

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 then the first spring 421-1 and the second spring 431-1 are assembled to the first spring groove 421 and the second spring groove 431, respectively.

Further, in order to facilitate the assembly of the first spring 421-1 to the first spring groove 421, a first gap 425 is provided above 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 is firstly sleeved from bottom to top along the first guide groove 424, and then the first spring hook 5261 is pushed in from left to right along the first spring groove 421, so that the assembly of the first unlocking part 521 and the lower shell 400 is completed; the first spring 421-1 is then loaded into the first spring slot 421 from the first indentation 425. During assembly, the first spring 421-1 is in a compressed state.

To facilitate the assembly of the second spring 431-1 to the second spring groove 431, a second gap 435 is provided above the second spring groove 431, and the second gap 435 communicates with the second spring groove 431. In the assembling process, the second spring hook 5271 is firstly sleeved along the second guide groove 434 from bottom to top, and then the second spring hook 5271 is pushed in along the second spring groove 431 from left to right, so that the assembling of the second unlocking part 522 and the lower shell 400 is completed; the second spring 431-1 is then inserted into the second spring groove 431 through the second notch 435. During assembly, the second spring 431-1 is in a compressed state.

As shown in fig. 8, 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. 9 is an assembly schematic diagram of a lower housing and an unlocking component according to an embodiment of the present application. As shown in fig. 9, 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.

Fig. 10 is a first structural diagram of an upper housing according to an embodiment of the present application, fig. 11 is a second structural diagram of an upper housing according to an embodiment of the present application, and fig. 12 is an enlarged view of a dotted line portion in fig. 11. Fig. 10, 11 and 12 show a basic structure of an upper housing provided in an embodiment of the present application.

As shown in fig. 10, 11 and 12, the upper case 300 provided by the embodiment of the present application includes a cover plate 310, a third side plate 320 and a fourth side plate 330. In this embodiment, in order to prevent the spring from being forced to pop out of the spring slot during the unlocking process, the head of the third side plate 320 is provided with a first embedding protrusion 321, and the first embedding protrusion 321 corresponds to the first notch 425. The head of the fourth side plate 330 is provided with a second embedding protrusion 331, and the second embedding protrusion 331 corresponds to the second gap 435. When the upper housing 300 and the lower housing 400 are assembled, the first embedding protrusion 321 is embedded into the first notch 425, and the second embedding protrusion 331 is embedded into the second notch 435, so that the first spring 421-1 and the second spring 431-1 are respectively sealed inside the first spring groove 421 and the second spring groove 431, and the springs are prevented from being ejected from the spring grooves under stress.

Fig. 13 is a schematic view illustrating an assembly of an upper housing and a lower housing according to an embodiment of the present application. Fig. 14 is a partially broken away schematic view of fig. 13. As shown in fig. 13 and 14, after the upper housing and the lower housing are assembled, the first embedding protrusion 321 is inserted into the first notch 425, and the second embedding protrusion 331 is inserted into the second notch 435, so as to seal the first spring 421-1 and the second spring 431-1 in the first spring groove 421 and the second spring groove 431, respectively, and prevent the springs from being ejected from the spring grooves by force.

Further, in the present embodiment, the upper side edge of the first unlocking part 521 is higher than the side edge of the first side plate 420, and the upper side edge of the second unlocking part 522 is higher than the side edge of the second side plate 430. The third side plate 320 is further provided with a third groove 322 and a third locking groove 323, and the fourth side plate 330 is further provided with a fourth groove 332 and a fourth locking groove 333. The third groove 322 and the fourth groove 332 are used for being matched and connected with the unlocking component 500, and the tail part of the unlocking component 500 can move in the third groove 322 and the fourth groove 332 in the unlocking process of the optical module; the third locking groove 323 and the fourth locking groove 333 are used for limiting the unlocking member 500, and preventing the unlocking member 500 from moving and exceeding the limit during unlocking and locking of the optical module.

It is noted that, in this specification, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a circuit structure, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such circuit structure, article, or apparatus. Without further limitation, the presence of an element identified by the phrase "comprising an … …" does not exclude the presence of other like elements in a circuit structure, article or device comprising the element.

Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.

The above-described embodiments of the present application do not limit the scope of the present application.

Claims

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 unlocking component is clamped with the lower shell;

2. The optical module according to claim 1, wherein the third side plate is provided with a first embedding protrusion which is embedded and connected with the first notch;

the fourth side plate is provided with a second embedding bulge which is embedded and connected with the second notch.

3. The optical module of claim 1, wherein the first guide slot is disposed perpendicular to the main board; the second guide groove is perpendicular to the main plate.

4. The optical module according to claim 1, wherein the first guide groove and the second guide groove are symmetrically disposed on the lower housing.

5. The light module of claim 4, wherein the unlocking component comprises: the spring clamp comprises a first spring clamp hook and a second spring clamp hook, wherein one end of the first spring clamp hook extends into the first spring groove; one end of the second spring clamping hook extends into the second spring groove.

6. The light module of claim 5, wherein: one end of the first spring is connected with the first spring hook; one end of the second spring is connected with the second spring hook.

7. The light module of claim 5, wherein the unlocking component further comprises: the first locking hook and the second locking hook are arranged on the base;

the first side plate is provided with a first locking groove and is connected with the first locking hook in a matched manner;

and the second side plate is provided with a second locking groove which is matched and connected with the second locking hook.

8. The optical module according to claim 7, wherein the first locking groove and the second locking groove are symmetrically disposed on the lower housing.

9. The optical module of claim 1, wherein the first notch has an opening length at the first side plate edge that is less than a free length of the first spring; the opening length of the second notch at the edge of the second side plate is smaller than the free length of the second spring.

10. The optical module of claim 1, further comprising: an unlocking member, provided on the lower case, including a first recess and a second recess;

the head of the first side plate and the head of the second side plate are recessed towards the inside of the optical module;

the first recess is connected with the head of the first side plate in a matched mode, and the second recess is connected with the head of the second side plate in a matched mode.