An optical module

Abstract

The application relates to the technical field of photoelectric conversion, and discloses an optical module, which comprises a circuit board, a photoelectric assembly arranged on the circuit board, a base fixed on the circuit board, an optical fiber assembly connected to the base, and a top cover connected to the base; opposite sides of the top cover are respectively provided with a first clamping assembly and a second clamping assembly; the base is respectively provided with a first connecting assembly and a second connecting assembly matched with the first clamping assembly and the second clamping assembly; the top cover and the base are clamped and connected together through the first clamping assembly, the second clamping assembly, the first connecting assembly and the second connecting assembly, so as to fix the optical fiber assembly between the top cover and the base; and the optical fiber assembly is optically coupled with the photoelectric assembly. In the manner, the optical fiber assembly can be assembled on the optical module in a pluggable mode, and the applicability of the optical module is improved.

Description

Technical Field

[0001] This application relates to the field of photoelectric conversion technology, specifically to an optical module. Background Technology

[0002] Existing active optical fiber products fall into two main categories: multimode and single-mode. In multimode optical fiber communication systems, multimode products are typically assembled by laterally inserting the optical fiber into a mounting base and then fixing it to a lens within the base using adhesive bonding. While this assembly method optimizes the optical signal transmission performance of the multimode optical module, it does not provide a pluggable connection between the multimode fiber and the optical module. Single-mode products, on the other hand, achieve high-speed photoelectric signal transmission by connecting a standardized optical module with integrated chips via single-mode fiber and an external optical cable. However, single-mode fiber also lacks a pluggable design between the single-mode fiber and the optical module. Therefore, although existing active optical fiber products can achieve high-speed photoelectric signal transmission, the assembly method between the fiber and the optical module imposes unnecessary limitations on the use of the fiber optic product in practical applications, affecting the applicability of the optical module. Utility Model Content

[0003] This application provides an optical module designed to address the problem that the inability of the fiber optic components in the optical module to be pluggable or pluggable affects the applicability of the optical module.

[0004] This application provides an optical module, including:

[0005] circuit board,

[0006] The optoelectronic components disposed on the circuit board

[0007] The base fixed on the circuit board

[0008] The fiber optic assembly connected to the base

[0009] and the top cover connected to the base;

[0010] The upper cover is provided with a first snap-fit ​​component and a second snap-fit ​​component on opposite sides, and the base is provided with a first connecting component and a second connecting component that cooperate with the first snap-fit ​​component and the second snap-fit ​​component; the upper cover and the base are connected together by the first snap-fit ​​component, the second snap-fit ​​component, the first connecting component, and the second connecting component to fix the optical fiber assembly between the upper cover and the base;

[0011] The optical fiber assembly is optically coupled to the optoelectronic assembly.

[0012] In one embodiment of this application, the optical fiber assembly includes a positioning head and an optical fiber bundle. The optical fiber bundle is mounted on the positioning head, the positioning head is provided with a reflective surface, the base has a reflective channel corresponding to the reflective surface, the optoelectronic component is partially accommodated in the reflective channel, and the optical fiber bundle is optically coupled to the optoelectronic component through the reflective surface and the reflective channel.

[0013] The positioning head has a positioning post at its bottom, and the base has a positioning hole that matches the positioning post. The positioning post is embedded in the positioning hole, so that the optoelectronic component and the optical fiber bundle are optically coupled and connected through the reflective surface and the reflective channel.

[0014] In one embodiment of this application, the first latching component includes a first latching claw, and the first connecting component includes a connecting block;

[0015] The base is provided with a receiving groove, the bottom of the receiving groove is formed with a first inclined surface, the first claw includes a first claw body and a first claw head connected together, and a second inclined surface is provided on the first claw head;

[0016] When the first snap-fit ​​component snaps onto the base, the first inclined surface and the second inclined surface fit together to achieve a snap-fit ​​connection between the first claw and the connecting block.

[0017] In one embodiment of this application, the connecting block has a third inclined surface connected to the first inclined surface, the third inclined surface being configured to guide the first claw to embed into the receiving groove so that the first claw engages with the connecting block.

[0018] In one embodiment of this application, the top cover includes a main body and a first extension, the first extension and the main body enclose a first cavity, and the first claw is connected to the first extension.

[0019] In one embodiment of this application, the first extension portion includes a first extension sub-part and a second extension sub-part. The two opposite ends of the first extension sub-part are respectively connected to the main body portion through the second extension sub-part. The first extension sub-part, the second extension sub-part, and the main body portion enclose and form the first cavity.

[0020] The first claw is connected to the first extension sub-part, and the second extension sub-part is arched away from the circuit board.

[0021] In one embodiment of this application, the second latching component includes a second latch, and the second connecting component includes a slider;

[0022] The slider has a fourth inclined surface facing away from the upper cover, and the second claw has a fifth inclined surface. The fourth and fifth inclined surfaces are configured to fit together so that the second claw and the slider engage.

[0023] In one embodiment of this application, the slider has a sixth inclined surface connected to the fourth inclined surface, the sixth inclined surface being configured to guide the second claw to engage with the slider.

[0024] In one embodiment of this application, the top cover includes a main body and a second extension, the second extension and the main body enclosing a second cavity, and the second claw is connected to the second extension.

[0025] In one embodiment of this application, the second extension includes a third extension sub-part and a fourth extension sub-part. The opposite ends of the third extension sub-part are respectively connected to the main body through the fourth extension sub-part. The third extension sub-part, the fourth extension sub-part, and the main body together form the second cavity.

[0026] The second claw is connected to the third sub-extension, and the fourth sub-extension is arched away from the circuit board.

[0027] In one embodiment of this application, the optical module further includes an elastic element, one end of which is connected to the slider and the other end of which is connected to the base;

[0028] The elastic element is configured to drive the slider and the second jaw to remain connected.

[0029] The sixth inclined plane is configured to guide the second claw and the slider to engage during the process, during which the elastic element is compressed to cause the slider to move toward a side away from the second claw.

[0030] In one embodiment of this application, the base includes a body and a support block. The body has an assembly space, and the slider and the support block are both disposed within the assembly space. The support block and the body together define grooves located on both sides of the slider.

[0031] The slider is provided with a sliding arm, which is configured to slide within the slide groove;

[0032] The support block and the body together define a placement groove. The slider is provided with a core post. One end of the elastic element is sleeved on the core post, and the other end is disposed in the placement groove.

[0033] In one embodiment of this application, the optical module further includes a housing assembly, which includes a first housing and a second housing. The first housing and the second housing are connected and form an inner cavity. The circuit board is disposed in the inner cavity. The second housing has a plug-in block, which is inserted into the assembly space to restrict the slider from sliding within the assembly space.

[0034] The beneficial effects of this application are as follows: After the fiber optic assembly is installed on the base, the upper cover can press and limit the fiber optic assembly onto the base by engaging the snap-fit ​​components and connecting components on opposite sides of the upper cover. This not only ensures reliable fixation of the fiber optic assembly on the base, but also allows the upper cover to release its fixation by disengaging the connecting components from the snap-fit ​​components on both sides, thus enabling the fiber optic assembly to be disassembled. Therefore, the fiber optic assembly is assembled on the base in a pluggable manner, improving the applicability of the optical module. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the optical module structure of this application;

[0037] Figure 2 yes Figure 1 A first-view exploded view of the optical module shown.

[0038] Figure 3 yes Figure 1 The diagram shows the structure of the circuit board and base in the assembled state of the optical module.

[0039] Figure 4 yes Figure 3 The diagram shows an exploded view of the optical module after the circuit board has been disassembled.

[0040] Figure 5 yes Figure 3 The diagram shows the exploded structure of the optical module after the circuit board has been disassembled, viewed from a second perspective.

[0041] Figure 6 yes Figure 3 The diagram shows a top view of the optical module after the circuit board has been disassembled.

[0042] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure along the AA direction;

[0043] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure;

[0044] Figure 9 yes Figure 1 A three-dimensional structural diagram of the fiber optic assembly in the optical module shown.

[0045] Figure 10 yes Figure 3 The diagram shows the structure of the upper cover in the optical module.

[0046] Figure 11 yes Figure 1 A schematic diagram of the three-dimensional structure of the base in the optical module shown;

[0047] Figure 12 yes Figure 6 A schematic diagram of the three-dimensional structure;

[0048] Figure 13 yes Figure 3 A schematic diagram of the three-dimensional structure of the base of the optical module after the slider and elastic component have been disassembled.

[0049] Figure 14 yes Figure 13 A schematic diagram of the three-dimensional structure after the support block has been disassembled;

[0050] Figure 15 yes Figure 1 A second-view exploded view of the optical module shown.

[0051] Figure 16 yes Figure 1 A top view of the optical module shown.

[0052] Figure 17 yes Figure 16 A cross-sectional three-dimensional structural diagram along the CC direction;

[0053] Figure 18 yes Figure 17 A magnified structural diagram at point D in the diagram.

[0054] Explanation of reference numerals in the attached figures:

[0055] 10. Circuit board; 20. Optoelectronic component; 201. Silicon photonic chip; 202. Lens; 30. Base; 300. Body; 301. Reflection channel; 302. Positioning hole; 303. Receiving groove; 304. Assembly space; 3041. Slide groove; 3042. Placement groove; 305. Clearance groove; 306. Receiving groove; 31. First connecting component; 310. Connecting block; 311. First inclined surface; 312. Third inclined surface; 32. Second connecting component; 320. Slider; 321. Fourth inclined surface; 322. Sixth inclined surface; 323. Sliding arm; 324. Core column; 33. Elastic element; 34. Support block; 35. Boss; 351. Extension groove; 40. Fiber optic component; 41. Positioning head; 411. Reflective surface ; 412, Positioning post; 42, Fiber optic bundle; 43, Cover plate; 50, Top cover; 51, First snap-fit ​​assembly; 510, First claw; 511, First claw body; 512, First claw head; 5121, Second inclined surface; 52, First cavity; 53, Main body; 54, First extension; 541, First extension sub-part; 542, Second extension sub-part; 55, Second snap-fit ​​assembly; 550, Second claw; 551, Second claw body; 552, Second claw head; 5521, Fifth inclined surface; 56, Second cavity; 57, Second extension; 571, Third extension sub-part; 572, Fourth extension sub-part; 60, First housing; 70, Second housing; 701, Insertion block; 80, Housing assembly; 801, Inner cavity. Detailed Implementation

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0057] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0058] Please refer to Figures 1 to 5 This application provides an optical module. It includes a circuit board 10, an optoelectronic component 20 disposed on the circuit board 10, a base 30 fixed to the circuit board 10, an optical fiber component 40 connected to the base 30, and a top cover 50 connected to the base 30. The optical module may further include a housing assembly 80, which includes a first housing 60 and a second housing 70. The first housing 60 and the second housing 70 are connected and form an inner cavity 801, in which the circuit board 10 is disposed. The first housing 60 supports the circuit board 10. The first housing 60 and the second housing 70 isolate the electrical components of the optical module, such as the circuit board 10, from the external environment, protecting the internal components of the optical module from damage and ensuring the normal operation of the optical module.

[0059] Specifically, a photoelectric component 20 is provided on the circuit board 10. The photoelectric component 20 may include a silicon photonic chip 201 and a lens 202. The lens 202 is coupled and fixed to the silicon photonic chip 201. The photoelectric component 20 can be a light receiving component or a light emitting component, and is not limited to one in this case. In this solution, the photoelectric component 20 is described using a light receiving component as an example.

[0060] The base 30 has three orthogonal directions: length (X), width (Y), and thickness (Z). During the assembly of the base 30 onto the circuit board 10, the base 30 is first pre-fixed to the circuit board 10. Subsequently, the position of the base 30 on the circuit board 10 is adjusted to ensure correct alignment between the optoelectronic component 20 and the fiber optic component 40 on the base 30. Finally, the base 30 is fixed to the circuit board 10 using methods such as dispensing adhesive.

[0061] The upper cover 50 has a first snap-fit ​​component 51 and a second snap-fit ​​component 55 on opposite sides. The base 30 has a first connecting component 31 and a second connecting component 32 that cooperate with the first snap-fit ​​component 51 and the second snap-fit ​​component 55. The upper cover 50 and the base 30 are connected together by the first snap-fit ​​component 51, the second snap-fit ​​component 55, the first connecting component 31, and the second connecting component 32 to fix the optical fiber assembly 40 between the upper cover 50 and the base 30. The optical fiber assembly 40 is optically coupled to the optoelectronic component 20. The optical fiber assembly 40 is held by the upper cover 50 and the base 30 along the thickness direction Z, and is connected by the snap-fit ​​of the first snap-fit ​​component 51 and the first connecting component 31, as well as the second snap-fit ​​component 55 and the second connecting component 32. The optical fiber assembly 40 can be fixed between the upper cover 50 and the base 30, realizing the optical coupling connection between the optical fiber assembly 40 and the optoelectronic component 20.

[0062] It should be noted that the first snap-fit ​​component 51 and the second snap-fit ​​component 55 can be disposed on opposite sides of the upper cover 50 along the length direction X, or on opposite sides of the upper cover 50 along the width direction Y. Adaptably, the first connecting component 31 and the second connecting component 32 can be disposed on opposite sides of the base 30 along the length direction X, or on opposite sides of the base 30 along the width direction Y, and no single limitation is made here.

[0063] After the fiber optic assembly 40 is installed on the base 30 using the above method, the upper cover 50 can press and limit the fiber optic assembly 40 onto the base 30 by engaging the snap-fit ​​components and connecting components on opposite sides of the base 30. This not only ensures the reliable fixation of the fiber optic assembly 40 on the base 30, but also allows the upper cover 50 to release its fixation of the fiber optic assembly 40 onto the base 30 by disengaging the snap-fit ​​components on both sides. This enables the fiber optic assembly 40 to be disassembled and assembled onto the base 30 in a pluggable manner, improving the applicability of the optical module.

[0064] In some embodiments, please Figure 4 and Figure 5 Further reference Figures 6 to 9 The fiber optic assembly 40 includes a positioning head 41 and a fiber bundle 42. The fiber bundle 42 is mounted on the positioning head 41, which has a reflective surface 411. The base 30 has a reflective channel 301 corresponding to the reflective surface 411. The optoelectronic assembly 20 is partially housed within the reflective channel 301. The fiber bundle 42 is optically coupled to the optoelectronic assembly 20 through the reflective surface 411 and the reflective channel 301. The positioning head 41 may have a plate-like structure, and the fiber optic assembly 40 may also include a cover plate 43, through which the fiber bundle 42 can be fixed to the positioning head 41. The reflective surface 411 is an inclined surface formed within the positioning head 41, and a light-reflecting layer is provided on the inclined surface. The reflective channel 301 extends through the base 30 along its thickness direction Z. When the base 30 is fixed to the circuit board 10, the lens 202 of the light receiving assembly is located within the reflective channel 301. When the fiber optic assembly 40 is mounted on the base 30, one side of the reflective surface 411 corresponds to the optical port of the fiber bundle 42, and the other side of the reflective surface 411 corresponds to the lens 202 within the reflection channel 301. Thus, the reflective surface 411 can change the direction of the light beam emitted from the fiber bundle 42 or the optoelectronic assembly 20, achieving optical coupling between the fiber bundle 42 and the optoelectronic assembly 20. Here, the optoelectronic assembly 20 is a light receiving component. The reflective surface 411 can change the direction of the light beam emitted from the fiber bundle 42, allowing the lens 202 to receive the light beam reflected by the reflective surface 411. The silicon photonics chip 201 can convert the light beam signal into an electrical signal and transmit it to the circuit board 10, enabling the optical module to complete the conversion from optical signal to electrical signal.

[0065] A positioning post 412 is provided at the bottom of the positioning head 41. A positioning hole 302 matching the positioning post 412 is provided on the base 30. The positioning post 412 is embedded in the positioning hole 302, allowing the optoelectronic component 20 and the fiber bundle 42 to be optically coupled together through the reflective surface 411 and the reflective channel 301. The number of positioning posts 412 can be set to two or more. Two or more positioning posts 412 can cooperate to prevent the positioning head 41 from rotating on the base 30. Through the positioning guidance of the positioning post 412 and the positioning hole 302, the fiber optic component 40 can be precisely installed on the base 30, which helps to achieve precise coupling between the fiber optic component 40 and the optoelectronic component 20.

[0066] It should be noted that, due to the high precision requirements for the fit between the fiber optic assembly 40 and the base 30, the tolerance of the fit between the positioning post 412 and the positioning hole 302 needs to be kept within a small range. Considering that shaft hole machining is already very mature in existing technology, using a shaft hole fit method for positioning the fiber optic assembly 40 and the base 30 is easier to implement in production and has lower processing costs.

[0067] In this embodiment, a clearance groove 305 is also provided on the base 30. The clearance groove 305 is used to avoid the cover plate 43. The clearance groove 305 is located on the surface of the base 30 near the upper cover 50, and the clearance groove 305 and the cover plate 43 are positioned correspondingly. During the process of positioning the positioning head 41 on the base 30 by cooperating with the positioning post 412 and the positioning hole 302, the cover plate 43 can be located in the clearance groove 305, thereby preventing the cover plate 43 from protruding downward relative to the positioning head 41, so that the positioning head 41 can fit tightly with the base 30, ensuring the installation accuracy and stability of the optical fiber assembly 40 on the base 30.

[0068] In addition, such as Figure 5 As shown, the base 30 is also provided with a receiving slot 306. The receiving slot 306 is used to accommodate the silicon photonic chip 201. When the base 30 is mounted on the circuit board 10, the silicon photonic chip 201 can be located within the receiving slot 306, and the lens 202 on the silicon photonic chip 201 can be located within the reflection channel 301. Thus, the light receiving component can be completely accommodated within the base 30 through the receiving slot 306, keeping the connection surface between the base 30 and the circuit board 10 in close contact, facilitating the mounting of the base 30 onto the circuit board 10 by adhesive dispensing.

[0069] In some embodiments, please refer to Figure 10 and Figure 11The first snap-fit ​​assembly 51 includes a first snap-fit ​​claw 510. The first snap-fit ​​claw 510 is located at the end along the length direction X or width direction Y of the upper cover 50, and extends along the thickness direction Z of the upper cover 50. The first connecting assembly 31 includes a connecting block 310. The connecting block 310 may be located at the end along the length direction X or width direction Y of the base 30. The base 30 is provided with a receiving groove 303, and the bottom of the receiving groove 303 forms a first inclined surface 311. The first inclined surface 311 may be provided on the side of the connecting block 310 adjacent to the receiving groove 303. A second inclined surface 5121 is provided on the first snap-fit ​​claw 510. When the first snap-fit ​​assembly 51 snaps onto the base 30, the first inclined surface 311 and the second inclined surface 5121 fit together to realize the snap-fit ​​connection between the first snap-fit ​​claw 510 and the connecting block 310. When the upper cover 50 and the base 30 are connected, the end of the first claw 510 away from the upper cover 50 is located in the receiving groove 303, and the second inclined surface 5121 is in contact with the first inclined surface 311. Thus, the first claw 510 is not only limited by the receiving groove 303, but also, through the cooperation of the first inclined surface 311 and the second inclined surface 5121, the engagement area between the first claw 510 and the connecting block 310 is increased, making the engagement between the first claw 510 and the connecting block 310 more stable. When it is necessary to remove the fiber optic assembly 40, by applying external force to the upper cover 50 and / or the base 30, under the action of the first inclined surface 311 and the second inclined surface 5121, the upper cover 50 and the first claw 510 deform, allowing the first claw 510 and the connecting block 310 to separate. This reduces the difficulty of separating the upper cover 50 from the base 30, facilitating the disassembly of the fiber optic assembly 40.

[0070] In this embodiment, the first claw 510 has a first claw body 511 and a first claw head 512. The first claw head 512 is disposed at one end of the first claw body 511, and the other end of the first claw body 511 is connected to the upper cover 50. A second inclined surface 5121 is disposed on the first claw head 512. When the first claw 510 and the connecting block 310 are engaged, the first claw head 512 is located in the receiving groove 303, and hooks the connecting block 310 through the cooperation of the second inclined surface 5121 and the first inclined surface 311, thereby engaging and assembling the upper cover 50 and the base 30 together.

[0071] It should be noted that in some embodiments, the first snap-fit ​​component 51 and the second snap-fit ​​component 55 have the same structure, and the first connecting component 31 and the second connecting component 32 have the same structure, so that the upper cover 50 and the base 30 can be snapped together with the cooperation of the first snap-fit ​​claw 510 and the connecting block 310, without needing to distinguish the corresponding snap-fit ​​parts at both ends of the upper cover 50 and the two ends of the base 30, thus reducing the assembly difficulty of the two.

[0072] In some embodiments, please refer to Figure 4 , Figure 5 and Figure 11The connecting block 310 has a third inclined surface 312 connected to the first inclined surface 311. The third inclined surface 312 is configured to guide the first claw 510 into the receiving groove 303, so that the first claw 510 engages with the connecting block 310. In this embodiment, the first claw 510 includes a first claw body 511 and a first claw head 512. During the assembly of the optical fiber assembly 40, by applying an external force to the upper cover 50 and / or the base 30, under the action of the third inclined surface 312, the first claw head 512 can slide along the third inclined surface 312, and the upper cover 50 and the first claw body 511 deform, enabling the first claw 510 to engage with the connecting block 310. Thus, by setting the third inclined surface 312, the assembly difficulty of the upper cover 50 and the base 30 can be reduced, facilitating the assembly of the optical fiber assembly 40.

[0073] It should be noted that when the connecting block 310 has both a first inclined surface 311 and a third inclined surface 312, the bottom edge of the third inclined surface 312 can coincide with the top edge of the first inclined surface 311. Thus, after the first claw 512 passes the bottom of the third inclined surface 312, it can directly slide from the top of the first inclined surface 311 into the receiving groove 303 and engage with the second inclined surface 5121, making the engagement process between the first claw 510 and the connecting block 310 smoother and easier to operate.

[0074] It is readily understood that in other embodiments, when the connecting block 310 has both a first inclined surface 311 and a third inclined surface 312, the bottom edge of the third inclined surface 312 and the top edge of the first inclined surface 311 may not coincide. Thus, although the third inclined surface 312 and the first inclined surface 311 are not directly connected, the first claw 512 needs to move a certain distance along the connecting block 310 between the third inclined surface 312 and the first inclined surface 311 before it can slide into the receiving groove 303 and fit against the second inclined surface 5121, thereby achieving the engagement of the first claw 510 and the connecting block 310.

[0075] In some embodiments, please refer to Figures 4 to 8 as well as Figure 10 The upper cover 50 has a first cavity 52. ​​The first cavity 52 is used to reduce the rigidity of the upper cover 50 near the first claw 510. The first cavity 52 is provided through the upper cover 50 along the thickness direction Z, which can reduce the rigidity of the upper cover 50 near the first claw 510, so that the part of the upper cover 50 near the first claw 510 has better deformation capacity and reduces the difficulty of assembling and disassembling the upper cover 50 and the base 30.

[0076] It should be noted that the shape of the first cavity 52 can be a regular shape such as a square, rectangle, or isosceles trapezoid. A regular shape of the first cavity 52 facilitates processing in actual production. Of course, the shape of the first cavity 52 can also be irregular; this is not a limiting factor.

[0077] In some embodiments, please refer to Figures 4 to 8 as well as Figure 10 The upper cover 50 includes a main body 53 and a first extension 54. The first extension 54 and the main body 53 enclose a first cavity 52, and a first latch 510 is connected to the first extension 54. The main body 53 constitutes the base of the upper cover 50. The first extension 54 extends from one side of the main body 53 in the length direction X or width direction Y of the upper cover 50. The first cavity 52 is formed between the first extension 54 and the main body 53, which can reduce the rigidity between the first latch 510 and the main body 53, so that the whole formed by the first latch 510 and the upper cover 50 has better deformation capability, and facilitates the assembly and disassembly of the upper cover 50 and the base 30.

[0078] In some embodiments, please continue to refer to Figures 4 to 8 as well as Figure 10 The first extension 54 includes a first extension sub-part 541 and a second extension sub-part 542. The opposite ends of the first extension sub-part 541 are respectively connected to the main body 53 via the second extension sub-parts 542. The first extension sub-part 541, the second extension sub-part 542, and the main body 53 enclose a first cavity 52. ​​There may be two second extension sub-parts 542. The first extension sub-part 541 can be a single, linear structure, with each end of the single-piece first extension sub-part 541 connected to a second extension sub-part 542. In this case, the first extension sub-part 541, the second extension sub-part 542, and the main body 53 enclose a closed first cavity 52. ​​Furthermore, the single-piece first extension sub-part 541 allows direct connection of the two second extension sub-parts 542, improving the overall strength of the second extension sub-parts 542 on both sides of the first cavity 52.

[0079] The first claw 510 is connected to the first extension sub-part 541, and the second extension sub-part 542 is arched away from the circuit board 10. When the first extension sub-part 541 has a "straight" integral structure, the first claw 510 is connected to the first extension sub-part 541, and one or more first claws 510 can be provided. When two first claws 510 are provided, the two first claws 510 are located at both ends of the first extension sub-part 541, which helps to maintain a balanced force on both sides of the second extension sub-part 542. The second extension sub-part 542 can be partially arched away from the circuit board 10, or it can be arched entirely away from the circuit board 10. In this application, the second extension sub-part 542 is described as being arched entirely away from the circuit board 10. By adopting the method of arching entirely away from the circuit board 10, the elastic recovery ability of the second extension sub-part 542 towards the circuit board 10 side can be enhanced, ensuring the elastic engagement effect of the upper cover 50 and the base 30.

[0080] It should be noted that when the upper cover 50 is connected to the base 30, the main body 53 makes rigid contact with the fiber optic assembly 40 to press and fix the fiber optic assembly 40 onto the base 30. The first cavity 52 reduces the rigidity at the connection between the upper cover 50 and the first latch 510, giving the portion of the upper cover 50 that provides the locking function better deformation capability. Therefore, the main body 53 has greater rigidity relative to the end of the upper cover 50 that provides the locking function for the first latch 510, allowing the main body 53 to rigidly press against the fiber optic assembly 40, thus ensuring the fiber optic assembly 40 remains stable on the base 30.

[0081] In some embodiments, please Figures 4 to 8 , Figure 10 Further reference Figure 12 The second latching assembly 55 includes a second latch 550. The second latch 550 can be located at an end along the length direction X or width direction Y of the upper cover 50, and the second latch 550 is disposed along the thickness direction Z of the upper cover 50. The second connecting assembly 32 includes a slider 320. The slider 320 can be located at an end along the length direction X or width direction Y of the base 30. The slider 320 has a fourth inclined surface 321 facing away from the upper cover 50. The second latch 550 is provided with a fifth inclined surface 5521. The fourth inclined surface 321 and the fifth inclined surface 5521 are configured to abut against each other, so that the second latch 550 and the slider 320 latch. When the upper cover 50 and the base 30 are connected, the fifth inclined surface 5521 of the second latch 550 and the fourth inclined surface 321 of the slider 320 abut against each other. Thus, through the cooperation of the fourth inclined surface 321 and the fifth inclined surface 5521, the second claw 550 can increase the engagement area between the second claw 550 and the slider 320, making the engagement of the second claw 550 and the slider 320 more stable. When it is necessary to remove the fiber optic assembly 40, by applying external force to the upper cover 50 and / or the base 30, the upper cover 50 and the second claw 550 are deformed under the action of the fourth inclined surface 321 and the fifth inclined surface 5521, which can separate the second claw 550 from the slider 320. This reduces the difficulty of separating the upper cover 50 from the base 30 and facilitates the disassembly of the fiber optic assembly 40.

[0082] In this embodiment, the second claw 550 can be disposed on the upper cover 50, and the slider 320 is disposed on the base 30. The second claw 550 has a second claw body 551 and a second claw head 552. The second claw head 552 is disposed at one end of the second claw body 551, and the other end of the second claw body 551 is connected to one side of the upper cover 50. A fourth inclined surface 321 is disposed on the surface of the second claw head 552 away from the upper cover 50. When the slider 320 is connected to the second claw head 552, the second claw head 552 hooks the slider 320 through the cooperation of the fourth inclined surface 321 and the fifth inclined surface 5521.

[0083] It should be noted that in some embodiments, the first snap-fit ​​component 51 and the second snap-fit ​​component 55 have the same structure, and the first connecting component 31 and the second connecting component 32 have the same structure, so that the upper cover 50 and the base 30 can be snapped together with the cooperation of the second claw 550 and the slider 320, without having to distinguish the corresponding snap-fit ​​parts at both ends of the upper cover 50 and the two ends of the base 30, thus reducing the assembly difficulty of the two.

[0084] Furthermore, in other embodiments, the structures of the first latching component 51 and the second latching component 55 on both sides of the upper cover 50 can be different. That is, the first latching component 51 may include a first latch 510, and the second latching component 55 may include a second latch 550. Adaptably, the structures of the first connecting component 31 and the second connecting component 32 on both sides of the base 30 can also be different. That is, the first connecting component 31 may include a connecting block 310, and the second connecting component 32 may include a slider 320. In this way, the upper cover 50 and the base 30 are connected by the engagement of the first latch 510 and the connecting block 310, and the second latch 550 and the slider 320, respectively, which is also within the protection scope of this application.

[0085] In some embodiments, please refer to Figures 4 to 8 as well as Figure 10 The slider 320 has a sixth inclined surface 322 connected to the fourth inclined surface 321. The sixth inclined surface 322 is configured to guide the second claw 550 to engage with the slider 320. In this embodiment, when the second claw 550 includes a second claw body 551 and a second claw head 552, during the assembly of the fiber optic assembly 40, by applying an external force to the upper cover 50 and / or the base 30, under the action of the sixth inclined surface 322, the second claw head 552 can slide along the sixth inclined surface 322, and the upper cover 50 and the second claw body 551 deform, enabling the second claw 550 to engage with the slider 320. Thus, by providing the sixth inclined surface 322, the assembly difficulty between the upper cover 50 and the base 30 can be reduced, facilitating the assembly of the fiber optic assembly 40.

[0086] It should be noted that when the slider 320 has both a fourth inclined surface 321 and a sixth inclined surface 322, the bottom edge of the fourth inclined surface 321 can coincide with the top edge of the sixth inclined surface 322. Thus, after the second claw 552 passes the bottom of the sixth inclined surface 322, it can slide directly downwards from the top of the sixth inclined surface 322, achieving contact with the fourth inclined surface 321. This makes the engagement process between the second claw 550 and the slider 320 smoother and easier to operate.

[0087] It is readily understood that in other embodiments, when the slider 320 simultaneously has a fourth inclined surface 321 and a sixth inclined surface 322, the bottom edge of the sixth inclined surface 322 and the top edge of the fourth inclined surface 321 may not coincide. Thus, although the sixth inclined surface 322 and the fourth inclined surface 321 are not directly connected, the second claw 552 needs to move a certain distance along the connecting block 310 between the sixth inclined surface 322 and the fourth inclined surface 321 before it can engage with the fourth inclined surface 321, thereby achieving the engagement of the second claw 550 and the connecting block 310.

[0088] In some embodiments, please continue to refer to Figures 4 to 8 as well as Figure 10 The upper cover 50 has a second cavity 56. The second cavity 56 is used to reduce the rigidity of the upper cover 50 near the second claw 550. The second cavity 56 is provided through the upper cover 50 along the thickness direction Z, which can reduce the rigidity of the upper cover 50 near the second claw 550, so that the part of the upper cover 50 near the second claw 550 has better deformation capacity and reduces the difficulty of disassembling and assembling the upper cover 50 and the base 30.

[0089] It should be noted that the cross-sectional area of ​​the second cavity 56 can be a regular shape such as a square, rectangle, or isosceles trapezoid. A regular shape of the second cavity 56 facilitates processing in actual production. Of course, the shape of the second cavity 56 can also be irregular; this is not a limiting factor.

[0090] In some embodiments, please continue to refer to Figures 4 to 8 as well as Figure 10 The upper cover 50 includes a main body 53 and a second extension 57. The second extension 57 and the main body 53 enclose a second cavity 56, and a second latch 550 is connected to the second extension 57. The main body 53 constitutes the base of the upper cover 50. The second extension 57 extends from one side of the main body 53 in the length direction X or width direction Y of the upper cover 50. The second cavity 56 formed between the second extension 57 and the main body 53 can reduce the rigidity between the second latch 550 and the main body 53, so that the whole formed by the second latch 550 and the upper cover 50 has better deformation capability, and facilitates the assembly and disassembly of the upper cover 50 and the base 30.

[0091] In some embodiments, please continue to refer to Figures 4 to 8 as well as Figure 10The second extension 57 includes a third extension sub-part 571 and a fourth extension sub-part 572. The opposite ends of the third extension sub-part 571 are connected to the main body 53 via the fourth extension sub-part 572. The third extension sub-part 571, the fourth extension sub-part 572, and the main body 53 enclose a second cavity 56. Two fourth extension sub-parts 572 can be provided, and the third extension sub-part 571 can be a "straight" split structure, with each end of the split third extension sub-part 571 connected to a fourth extension sub-part 572. In this case, the second cavity 56 formed by the third extension sub-part 571, the fourth extension sub-part 572, and the main body 53 has an opening on one side of the third extension sub-part 571. A second latch 550 is positioned at the opening of the second cavity 56, allowing the split third extension sub-part 571 to indirectly connect the two fourth extension sub-parts 572 via the second latch 550, ensuring the overall strength of the fourth extension sub-parts 572 on both sides of the second cavity 56.

[0092] The second claw 550 is connected to the third extension sub-part 571, and the fourth extension sub-part 572 is arched away from the circuit board 10. When the third extension sub-part 571 has a "straight" split structure, the second claw 550 is connected to the third extension sub-part 571, and one or more second claws 550 can be provided. When only one second claw 550 is provided, the second claw 550 is located between the third extension sub-parts 571, that is, at the opening of the second cavity 56, and the third extension sub-parts 571 and the fourth extension sub-parts 572 on both sides can simultaneously provide elasticity to the second claw 550. The fourth extension sub-part 572 can be partially arched away from the circuit board 10, or it can be entirely arched away from the circuit board 10. In this application, the fourth extension sub-part 572 is described in detail as partially arched away from the circuit board 10. The fourth extension sub-part 572 is partially arched away from the circuit board 10, which reduces the elastic recovery ability of the fourth extension sub-part 572 towards the circuit board 10. The second claw 550 and the slider 320 can be engaged or disengaged without applying too much external force to the upper cover 50 or the base 30, reducing the assembly difficulty of the upper cover 50 and the base 30 and facilitating the disassembly and assembly of the fiber optic assembly 40.

[0093] Furthermore, when the second claw 550 includes a second claw body 551 and a second claw head 552, a second claw body 551 is connected to each side of the second claw head 552, making the second claw 550 as a whole U-shaped structure. The U-shaped second claw 550 can be connected to the split third extension sub-part 571 through the two second claw bodies 551, connecting the second claw 550 and the second extension sub-part 57 into one unit.

[0094] It should be noted that when the upper cover 50 is connected to the base 30, the main body 53 makes rigid contact with the fiber optic assembly 40 to press and fix the fiber optic assembly 40 onto the base 30. The second cavity 56 reduces the stiffness at the connection between the upper cover 50 and the second latch 550, giving the portion of the upper cover 50 that provides the locking function better deformation capability. Therefore, the main body 53 has greater stiffness relative to the end of the upper cover 50 that provides the locking function for the second latch 550, allowing the main body 53 to rigidly press against the fiber optic assembly 40, thus ensuring the fiber optic assembly 40 remains stable on the base 30.

[0095] In some embodiments, please Figures 4 to 8 Further reference Figure 12 The optical module also includes an elastic element 33, one end of which is connected to a slider 320, and the other end is connected to a base 30. The slider 320 is connected to the base 30 via the elastic element 33. The elastic element 33 is configured to drive the slider 320 and the second claw 550 to remain connected. Specifically, the elastic element 33 can be a spring, and the slider 320 is movably connected to the base 30 along the length direction X or the width direction Y.

[0096] The sixth inclined surface 322 is configured to guide the second claw 550 and the slider 320 during engagement. During this process, the elastic element 33 is compressed, causing the slider 320 to move away from the second claw 550. When assembling the upper cover 50 and the base 30, an external force is applied to the upper cover 50 and / or the base 30. Under the guidance of the sixth inclined surface 322, the slider 320, acting on the second claw 550, can move along the base 30 and compress the elastic element 33, allowing the second claw 550 to pass over the slider 320 to achieve engagement. When the upper cover 50 and the base 30 are in the assembled state, the second claw 550 and the slider 320 are engaged. At this time, due to the presence of the elastic element 33, the slider 320 is prevented from moving along the base 30 towards the second claw 550, thus maintaining the engagement between the slider 320 and the second claw 550. When the top cover 50 and the base 30 are disassembled, an external force is applied to the top cover 50 and / or the base 30. Under the guidance of the fourth inclined surface 321 and the fifth inclined surface 5521, the slider 320 is able to move along the base 30 and compress the elastic element 33 after being acted upon by the second claw 550, so that the second claw 550 can pass over the slider 320 to achieve separation of the two.

[0097] It should be noted that during the process of applying external force to the upper cover 50 and / or the base 30 to engage or disengage them, the second claw 550 and the upper cover 50 will also deform to a certain extent due to the force exerted by the slider 320. Thus, the second claw 550 and the upper cover 50, together with the movement of the slider 320, jointly achieve the engagement or disengagement of the second claw 550 and the slider 320.

[0098] Therefore, the elastic element 33 enables the slider 320 to be elastically installed in the assembly space 304. This allows the second claw 550 to engage with the slider 320 not only through its own elastic deformation and that of the upper cover 50, but also to achieve the engagement between the second claw 550 and the slider 320 by means of the elastic extension and contraction of the slider 320 in the assembly space 304. This allows the upper cover 50 to be opened without the need for pry bars or other tools, thus enabling the disassembly and assembly of the upper cover 50 and the base 30. This not only reduces the difficulty of disassembling and assembling the upper cover 50 and the base 30, but also reduces the risk of deformation or damage to the upper cover 50 during the process of being pried open by pry bars or other tools.

[0099] In some embodiments, please Figures 4 to 8 as well as Figure 12 Further reference Figure 13 and Figure 14 The base 30 includes a body 300 and a support block 34. The body 300 has an assembly space 304, within which the slider 320 and the support block 34 are both disposed. The support block 34 and the body 300 together define grooves 3041 located on both sides of the slider 320. The grooves 3041 can be arranged along the length direction X or the width direction Y of the base 30.

[0100] The slider 320 is provided with a sliding arm 323, which is configured to slide within the slide groove 3041. The support block 34 can be a U-shaped structure and can be installed inside the assembly space 304 by dispensing adhesive. When the slider 320 moves, the U-shaped support block 34 can avoid the bottom of the slider 320, preventing interference between the slider 320 and the support block 34.

[0101] It should be noted that the contact surfaces of the slide arm 323 and the slide groove 3041 are both designed as planar structures. This makes the movement of the slide arm 323 more stable.

[0102] Optionally, the support block 34 and the body 300 also jointly define a placement groove 3042. The slider 320 is provided with a core post 324. One end of the elastic member 33 is sleeved on the core post 324, and the other end is disposed in the placement groove 3042. Specifically, when the elastic member 33 is a spring, the placement groove 3042 can be a circular or approximately circular groove to match the end shape of the elastic member 33.

[0103] In other embodiments, please refer to Figure 11The base 30 may also have a boss 35. The boss 35 is disposed on the surface of the base 30 near the upper cover 50 along the height direction Z. The boss 35 and the base 30 are integrally formed. The assembly space 304 is formed inside the base 30 and the boss 35. The boss 35 is provided with an extension groove 351 communicating with the assembly space 304, and the extension groove 351 is used to avoid the top of the slider 320. The boss 35 can increase the space of the base 30 for forming the assembly space 304, so that the assembly space 304 can have sufficient space to accommodate components such as the slider 320, the elastic element 33, and the support block 34.

[0104] In some embodiments, please Figures 1 to 3 Further reference Figures 15 to 18 The second housing 70 has a plug-in block 701 protruding from its inner surface. When the second housing 70 is connected to the first housing 60, the plug-in block 701 enters the assembly space 304 to prevent the slider 320 from becoming loose. Specifically, when the second housing 70 is installed on the first housing 60 on which the circuit board 10 is provided, the plug-in block 701 can be matched and inserted into the assembly space 304, thereby limiting the slider 320 and preventing it from moving within the assembly space 304. This avoids the slider 320 separating from the second claw 550, which could lead to a failure of the latch between the top cover 50 and the base 30, thus ensuring the stability of the latch between the top cover 50 and the base 30.

[0105] In other embodiments, please refer to Figure 18 The base 30 has a boss 35. The boss 35 is provided with an extension groove 351 that communicates with the assembly space 304. The plug block 701 can limit the slider 320 by inserting into the extension groove 351, so as to prevent the slider 320 from moving in the assembly space 304 and make the second claw 550 and the slider 320 stably engaged together.

[0106] The optical module provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An optical module, characterized in that, include: Circuit board (10), The optoelectronic component (20) is disposed on the circuit board (10). The base (30) is fixed to the circuit board (10). The fiber optic assembly (40) is connected to the base (30). and the top cover (50) connected to the base (30); The upper cover (50) has a first snap-fit ​​assembly (51) and a second snap-fit ​​assembly (55) on opposite sides, and the base (30) has a first connecting assembly (31) and a second connecting assembly (32) that cooperate with the first snap-fit ​​assembly (51) and the second snap-fit ​​assembly (55); the upper cover (50) and the base (30) are connected together by the first snap-fit ​​assembly (51), the second snap-fit ​​assembly (55) and the first connecting assembly (31) and the second connecting assembly (32) to fix the optical fiber assembly (40) between the upper cover (50) and the base (30); The optical fiber assembly (40) is optically coupled to the optoelectronic assembly (20).

2. The optical module according to claim 1, characterized in that, The optical fiber assembly (40) includes a positioning head (41) and an optical fiber bundle (42). The optical fiber bundle (42) is mounted on the positioning head (41). The positioning head (41) is provided with a reflective surface (411). The base (30) has a reflective channel (301) corresponding to the reflective surface (411). The optoelectronic assembly (20) is partially housed in the reflective channel (301). The optical fiber bundle (42) is optically coupled to the optoelectronic assembly (20) through the reflective surface (411) and the reflective channel (301). The positioning head (41) has a positioning post (412) at its bottom, and the base (30) has a positioning hole (302) that matches the positioning post (412). The positioning post (412) is embedded in the positioning hole (302), so that the optoelectronic component (20) and the optical fiber bundle (42) are optically coupled through the reflective surface (411) and the reflective channel (301).

3. The optical module according to claim 1, characterized in that, The first snap-fit ​​assembly (51) includes a first snap-fit ​​claw (510), and the first connecting assembly (31) includes a connecting block (310); The base (30) is provided with a receiving groove (303), the bottom of the receiving groove (303) is formed with a first inclined surface (311), the first claw (510) includes a first claw body (511) and a first claw head (512) connected together, and a second inclined surface (5121) is provided on the first claw head (512). When the first snap-fit ​​component (51) snaps onto the base (30), the first inclined surface (311) and the second inclined surface (5121) fit together to achieve snap-fit ​​connection between the first claw (510) and the connecting block (310).

4. The optical module according to claim 3, characterized in that, The connecting block (310) has a third inclined surface (312) connected to the first inclined surface (311), the third inclined surface (312) being configured to guide the first claw (510) to be inserted into the receiving groove (303) so that the first claw (510) engages with the connecting block (310).

5. The optical module according to claim 3, characterized in that, The top cover (50) includes a main body (53) and a first extension (54), the first extension (54) and the main body (53) enclose a first cavity (52), and the first claw (510) is connected to the first extension (54).

6. The optical module according to claim 5, characterized in that, The first extension (54) includes a first extension sub-part (541) and a second extension sub-part (542). The two ends of the first extension sub-part (541) are respectively connected to the main body (53) through the second extension sub-part (542). The first extension sub-part (541), the second extension sub-part (542) and the main body (53) enclose and form the first cavity (52). The first claw (510) is connected to the first extension sub-part (541), and the second extension sub-part (542) is arched in a direction away from the circuit board (10).

7. The optical module according to claim 1, characterized in that, The second snap-fit ​​assembly (55) includes a second snap-fit ​​claw (550), and the second connecting assembly (32) includes a slider (320); The slider (320) has a fourth inclined surface (321) facing away from the upper cover (50), and the second claw (550) is provided with a fifth inclined surface (5521). The fourth inclined surface (321) and the fifth inclined surface (5521) are configured to fit together so that the second claw (550) and the slider (320) engage.

8. The optical module according to claim 7, characterized in that, The slider (320) has a sixth inclined surface (322) connected to the fourth inclined surface (321), the sixth inclined surface (322) being configured to guide the second claw (550) to engage with the slider (320).

9. The optical module according to claim 7, characterized in that, The top cover (50) includes a main body (53) and a second extension (57), the second extension (57) and the main body (53) enclose to form a second cavity (56), and the second claw (550) is connected to the second extension (57).

10. The optical module according to claim 9, characterized in that, The second extension (57) includes a third extension sub-part (571) and a fourth extension sub-part (572). The opposite ends of the third extension sub-part (571) are respectively connected to the main body (53) through the fourth extension sub-part (572). The third extension sub-part (571), the fourth extension sub-part (572) and the main body (53) enclose to form the second cavity (56). The second claw (550) is connected to the third extension sub-part (571), and the fourth extension sub-part (572) is arched in a direction away from the circuit board (10).

11. The optical module according to claim 8, characterized in that, The optical module also includes an elastic element (33), one end of which is connected to the slider (320) and the other end is connected to the base (30); The elastic element (33) is configured to drive the slider (320) and the second claw (550) to remain connected; During the engagement of the second claw (550) and the slider (320) by the sixth inclined surface (322), the elastic element (33) is compressed so that the slider (320) moves toward the side away from the second claw (550).

12. The optical module according to claim 11, characterized in that, The base (30) includes a body (300) and a support block (34). The body (300) has an assembly space (304). The slider (320) and the support block (34) are both disposed in the assembly space (304). The support block (34) and the body (300) together define the grooves (3041) located on both sides of the slider (320). The slider (320) is provided with a sliding arm (323), which is configured to slide within the groove (3041); The support block (34) and the body (300) together define a placement groove (3042). The slider (320) is provided with a core column (324). One end of the elastic element (33) is sleeved on the core column (324), and the other end is disposed in the placement groove (3042).

13. The optical module according to claim 12, characterized in that, The optical module further includes a housing assembly (80), which includes a first housing (60) and a second housing (70). The first housing (60) and the second housing (70) are connected and form an inner cavity (801). The circuit board (10) is disposed in the inner cavity (801). The second housing (70) has a plug-in block (701), which is inserted into the assembly space (304) to restrict the slider (320) from sliding within the assembly space (304).

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