AOC optical module

Abstract

The utility model belongs to the technical field of optical modules, and particularly relates to an AOC optical module, which comprises a shell, a circuit board, a lens assembly and a jumper wire, the circuit board and the lens assembly are both arranged in the shell, and the lens assembly is arranged on the circuit board and connected with the jumper wire; the LED lamp further comprises a potting sealing piece of a groove-shaped structure, potting glue is filled in a groove of the potting sealing piece, and the lens assembly is located in the groove of the potting sealing piece and sealed in the potting glue. According to the utility model, the lens assembly is sealed in the potting glue in the potting sealing member, so that cooling liquid can be effectively prevented from entering the optical device, and the working reliability of a product in a liquid cooling environment is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical modules, and in particular relates to an AOC optical module. Background Art

[0002] With the rapid development of artificial intelligence, the global demand for computing power is increasing rapidly. With the requirements of green development, data centers need a more environmentally friendly heat dissipation method to control the temperature of optical modules. Immersion liquid cooling uses liquids that are non-corrosive to circuit boards and have a large specific heat capacity to dissipate heat from optical modules, which can reduce the energy consumed by heat dissipation. Compared with the traditional heat dissipation method that uses air conditioning for heat dissipation, immersion liquid cooling can be close to PUE1.0.

[0003] Nowadays, most multimode optical modules use COB packaging, which is a non-airtight packaging. The module is immersed in coolant. Since the refractive index of the fluorinated liquid is different from that of air, the optical path is offset, resulting in poor performance of the optical module. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an AOC optical module, which can improve the working reliability of the product in a liquid cooling environment.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is an AOC optical module, including a shell, a circuit board, a lens assembly and a jumper, wherein the circuit board and the lens assembly are both arranged in the shell, and the lens assembly is arranged on the circuit board and connected to the jumper; it also includes a glue potting seal with a groove-type structure, the groove of the glue potting seal is filled with potting glue, and the lens assembly is located in the groove of the glue potting seal and is sealed in the potting glue.

[0006] As one of the embodiments, the glue-filled seal includes a base plate, two oppositely arranged first side plates and two oppositely arranged second side plates, wherein a first mounting port is provided at one end of one of the first side plates facing away from the base plate, the middle part of the circuit board is installed in the first mounting port, and the circuit board and the first side plate are sealed by glue.

[0007] As one of the implementation modes, a second mounting opening is provided at one end of the other first side panel facing away from the bottom panel, one end of the jumper connected to the lens assembly is installed in the second mounting opening, and the jumper and the first side panel are sealed by glue.

[0008] As one of the implementation modes, gaps are provided between both sides of the circuit board and the two second side plates.

[0009] As one of the implementation modes, a plurality of positioning posts are disposed on the inner wall of the second side plate, a plurality of positioning grooves for the positioning posts to be inserted into are disposed on the circuit board, and the positioning posts are arranged in a one-to-one correspondence with the positioning grooves.

[0010] As one of the implementation modes, the housing includes a base, the circuit board and the glue-potting seal are both arranged in the base, and there is a gap between the two second side plates of the glue-potting seal and the two side walls of the base.

[0011] As one of the implementation modes, the shell further comprises an upper cover disposed on the base, and a gap is provided between the two second side plates of the glue-potting seal and the two side walls of the upper cover.

[0012] As one of the implementation modes, a recessed portion cooperating with the base is provided on the outer wall of the second side plate close to one end of the jumper.

[0013] As one of the embodiments, the lens assembly includes a first lens base and a first adapter, the first lens base is connected to the jumper through the first adapter; a light emitting chip is arranged on the circuit board, a groove for accommodating the light emitting chip is arranged on the side of the first lens base facing the circuit board, and is sealed on all sides by black glue; the side of the first lens base facing away from the circuit board is sealed by a first cover plate.

[0014] As one of the embodiments, the lens assembly includes a second lens base and a second adapter, and the second lens base is connected to the jumper through the second adapter; a light receiving chip is arranged on the circuit board, and a groove for accommodating the light receiving chip is arranged on the side of the second lens base facing the circuit board, and is sealed on all sides by black glue; the side of the second lens base facing away from the circuit board is sealed by a second cover plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model can effectively prevent the coolant from entering the interior of the optical device by sealing the lens assembly in the potting glue in the potting seal, thereby improving the working reliability of the product in a liquid cooling environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of an AOC optical module provided by an embodiment of the utility model;

[0019] Figure 2 A schematic diagram of an AOC optical module provided by an embodiment of the utility model;

[0020] Figure 3 A schematic diagram of an AOC optical module provided by an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of an AOC optical module provided by an embodiment of the utility model;

[0022] In the figure: 1. base; 2. circuit board; 21. positioning groove; 3. lens assembly; 31. first lens substrate; 32. first adapter; 33. second lens substrate; 34. second adapter; 35. first cover plate; 36. second cover plate; 4. jumper; 41. tail handle; 42. stop ring; 5. glue potting seal; 51. bottom plate; 52. first side plate; 53. first mounting port; 54. second side plate; 55. second mounting port; 56. positioning column; 57. recessed portion; 6. potting glue; 7. black glue. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of the present utility model, unless otherwise specified, the meaning of "several" is at least one.

[0026] like Figure 1-Figure 4As shown, this embodiment provides an AOC optical module, including a housing, a circuit board 2, a lens assembly 3 and a jumper 4, wherein the circuit board 2 and the lens assembly 3 are both arranged in the housing, and the lens assembly 3 is arranged on the circuit board 2 and connected to the jumper 4; it also includes a potting seal 5 in a groove-shaped structure, the groove of the potting seal 5 is filled with potting glue 6, and the lens assembly 3 is located in the groove of the potting seal 5 and sealed in the potting glue 6. In this embodiment, by sealing the lens assembly 3 in the potting glue 6 in the potting seal 5, a protective structure is formed around the optical path components, which can effectively prevent the coolant from entering the interior of the optical path components, thereby improving the working reliability of the product in a liquid cooling environment.

[0027] The potting glue 6 used in this embodiment is naturally cooled or heated and solidified in the potting seal 5 to form on the surface of the optical device, and the outer dimensions of the formed sealant layer are controllable, which is compatible with the structural design of the current optical module and effectively improves the protection ability of the optical module against the coolant.

[0028] In some embodiments, the glue-filled seal 5 includes a bottom plate 51, two first side plates 52 arranged opposite to each other, and two second side plates 54 arranged opposite to each other, wherein one end of the first side plates 52 facing away from the bottom plate 51 is provided with a first mounting opening 53, the middle part of the circuit board 2 is mounted in the first mounting opening 53, and the circuit board 2 and the first side plates 52 are sealed by glue. Figure 2 As shown, the first mounting opening 53 extends downward from the top surface of one end of the first side plate 52 away from the bottom plate 51, the middle part of the circuit board 2 is mounted in the first mounting opening 53, and the side of the circuit board 2 provided with the lens assembly 3 faces the bottom plate 51 of the glue potting seal 5, so that the lens assembly 3 on the circuit board 2 is located in the groove of the glue potting seal 5, and the DSP chip on the circuit board 2 is located outside the glue potting seal 5. Preferably, the width and depth of the first mounting opening 53 are respectively consistent with the width and depth of the circuit board 2, and the gap between the circuit board 2 and the first side plate 52 is sealed by glue.

[0029] In this embodiment, the two first side plates 52 and the two second side plates 54 are fixed on the bottom plate 51 and enclose to form a groove-shaped structure. Preferably, the first side plates 52 , the second side plates 54 and the bottom plate 51 are integral.

[0030] In some embodiments, another end of the first side plate 52 facing away from the bottom plate 51 is provided with a second mounting opening 55, and one end of the jumper 4 connected to the lens assembly 3 is mounted in the second mounting opening 55, and the jumper 4 and the first side plate 52 are sealed by glue. Figure 3As shown, the second mounting opening 55 extends downward from the top surface of one end of the first side plate 52 away from the bottom plate 51; the tail handle 41 of the jumper 4 is connected to the adapter of the lens assembly 3, and the tail handle 41 is installed in the second mounting opening 55. The number of the second mounting openings 55 corresponds to the number of the tail handles 41 of the jumper 4, and there is a gap between the tail handle 41 and the first side plate 52, which can effectively prevent the glue sealing member 5 from damaging the jumper 4 during the potting process. Preferably, the gap between the tail handle 41 of the jumper 4 and the first side plate 52 is 0.2 mm.

[0031] Furthermore, gaps are provided between both sides of the circuit board 2 and the two second side plates 54. Preferably, the gaps between the two side surfaces of the circuit board 2 and the two second side plates 54 are 0.15 mm.

[0032] In some embodiments, a plurality of positioning posts 56 are disposed on the inner wall of the second side plate 54, and a plurality of positioning grooves 21 are disposed on the circuit board 2 for the positioning posts 56 to be inserted into. The positioning posts 56 are disposed in a one-to-one correspondence with the positioning grooves 21. Figure 2 As shown, a positioning column 56 is provided on the inner wall of the two second side plates 54 at a position close to the first mounting opening 53, and positioning grooves 21 are correspondingly provided on both sides of the circuit board 2. When the middle part of the circuit board 2 is located in the first mounting opening 53, the two positioning columns 56 on the glue potting seal 5 are respectively inserted into the two positioning grooves 21 on the circuit board 2, thereby accurately fixing the relative position of the glue potting seal 5 and the circuit board 2.

[0033] like Figure 1 As shown, the housing includes a base 1, the circuit board 2 and the glue-potting seal 5 are both arranged in the base 1, and there is a gap between the two second side plates 54 of the glue-potting seal 5 and the two side walls of the base 1. Preferably, the gap between the two second side plates 54 of the glue-potting seal 5 and the two side walls of the base 1 is 0.2 mm.

[0034] Furthermore, the housing further comprises an upper cover arranged on the base 1, and there is a gap between the two second side plates 54 of the glue-filled seal 5 and the two side walls of the upper cover. Preferably, the gap between the two second side plates 54 of the glue-filled seal 5 and the two side walls of the upper cover is 0.2 mm.

[0035] In this embodiment, a recessed portion 57 matching with the base 1 is provided on the outer wall of the second side plate 54 close to the jumper 4. Figure 1-Figure 2 As shown, the recessed portion 57 on the outer wall of the second side plate 54 matches the two side walls of the base 1 . During installation, the two side walls of the base 1 extend into the recessed portions 57 on both sides of the glue-filled seal 5 .

[0036] In some embodiments, the lens assembly 3 includes a first lens base 31 and a first adapter 32, the first lens base 31 is connected to the jumper 4 through the first adapter 32; a light emitting chip is arranged on the circuit board 2, a groove for accommodating the light emitting chip is arranged on the side of the first lens base 31 facing the circuit board 2, and the surroundings are sealed by black glue 7; the side of the first lens base 31 facing away from the circuit board 2 is sealed by a first cover plate 35. Specifically, the light emitting chip is located in the groove of the first lens base 31, and the gap between the surroundings of the side of the first lens base 31 facing the circuit board 2 and the circuit board 2 is sealed by black glue 7; the side of the first lens base 31 facing away from the circuit board 2 is recessed downward to form a step structure, and is covered with a first cover plate 35, and the gap between the surroundings of the first cover plate 35 and the first lens base 31 is sealed by glue.

[0037] In some embodiments, the lens assembly 3 includes a second lens base 33 and a second adapter 34, and the second lens base 33 is connected to the jumper 4 through the second adapter 34; a light receiving chip is arranged on the circuit board 2, and a groove for accommodating the light receiving chip is arranged on the side of the second lens base 33 facing the circuit board 2, and the surroundings are sealed by black glue 7; the side of the second lens base 33 facing away from the circuit board 2 is sealed by a second cover plate 36. Specifically, the light receiving chip is located in the groove of the second lens base 33, and the gap between the surroundings of the side of the second lens base 33 facing the circuit board 2 and the circuit board 2 is sealed by black glue 7; the side of the second lens base 33 facing away from the circuit board 2 is recessed downward to form a step structure, and is covered with a second cover plate 36, and the gap between the surroundings of the second cover plate 36 and the second lens base 33 is sealed by glue.

[0038] In this embodiment, a snap-fit ​​structure is provided at the optical port end of the base 1, and the jumper 4 is installed in the snap-fit ​​structure of the base 1 through a stop ring 42. The jumper 4 is connected to two tail handles 41 through two optical fibers, and the two tail handles 41 are respectively connected to the first adapter 32 and the second adapter 34; two second mounting ports 55 are provided on the first side panel 52 near the end of the jumper 4, and the two tail handles 41 are respectively fixed in the two second mounting ports 55.

[0039] The manufacturing process of the AOC optical module of this embodiment is as follows: first, the lens assembly 3 is installed on the circuit board 2, and then the cover plate is installed on the lens substrate of the lens assembly 3, and then glue is added to the bottom of the circuit board 2, and then the jumper 4 is connected to the lens assembly 3, and then the glue sealing member 5 is installed, and then the sealing glue 6 is filled in the groove of the glue sealing member 5, and then the circuit board 2 is installed on the base 1, and finally the cover is installed on the base 1.

[0040] This embodiment fully seals the optical path part of the optical module through a potting process, effectively increases the sealing ability of the product without affecting the reliability of the final product and compatibility with currently used structural parts, improves the protection ability of the optical module against coolant, and has the advantages of low cost and simple process in terms of cost and process.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An AOC optical module, comprising a housing, a circuit board, a lens assembly and a jumper, wherein the circuit board and the lens assembly are both arranged in the housing, and the lens assembly is arranged on the circuit board and connected to the jumper; characterized in that: It also includes a glue-potting seal with a groove-shaped structure, the groove of the glue-potting seal is filled with potting glue, and the lens assembly is located in the groove of the glue-potting seal and is sealed in the potting glue.

2. The AOC optical module according to claim 1, wherein: The glue-filled seal includes a bottom plate, two first side plates arranged opposite to each other, and two second side plates arranged opposite to each other, wherein a first mounting opening is provided at one end of one of the first side plates facing away from the bottom plate, the middle part of the circuit board is installed in the first mounting opening, and the circuit board and the first side plates are sealed by glue.

3. The AOC optical module according to claim 2, wherein: A second mounting opening is provided at one end of the other first side plate facing away from the bottom plate, and one end of the jumper connected to the lens assembly is mounted in the second mounting opening, and the jumper and the first side plate are sealed by glue.

4. The AOC optical module according to claim 2, wherein: Gaps are arranged between both sides of the circuit board and the two second side plates.

5. The AOC optical module according to claim 2, wherein: A plurality of positioning posts are arranged on the inner wall of the second side plate, and a plurality of positioning grooves for the positioning posts to be inserted into are arranged on the circuit board, and the positioning posts and the positioning grooves are arranged in a one-to-one correspondence.

6. The AOC optical module according to claim 5, wherein: The housing comprises a base, the circuit board and the glue-potting seal are both arranged in the base, and there is a gap between the two second side plates of the glue-potting seal and the two side walls of the base.

7. The AOC optical module according to claim 6, wherein: The housing further comprises an upper cover which is arranged on the base, and there is a gap between the two second side plates of the glue-filled seal and the two side walls of the upper cover.

8. The AOC optical module according to claim 6, wherein: A recessed portion matching the base is arranged on the outer wall of the second side plate close to one end of the jumper.

9. The AOC optical module according to claim 1, wherein: The lens assembly includes a first lens base and a first adapter, the first lens base is connected to the jumper through the first adapter; a light emitting chip is arranged on the circuit board, a groove for accommodating the light emitting chip is arranged on the side of the first lens base facing the circuit board, and is sealed on all sides by black glue; the side of the first lens base facing away from the circuit board is sealed by a first cover plate.

10. The AOC optical module according to claim 1 or 9, characterized in that: The lens assembly includes a second lens base and a second adapter, and the second lens base is connected to the jumper through the second adapter; a light receiving chip is arranged on the circuit board, and a groove for accommodating the light receiving chip is arranged on the side of the second lens base facing the circuit board, and is sealed on all sides by black glue; the side of the second lens base facing away from the circuit board is sealed by a second cover plate.

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