Active optical cable based on cob process

Abstract

The utility model relates to photoelectric communication technical field especially based on COB technology's active optical cable, including upper casing, with the lower casing of upper casing connection and set up between the photoelectric subassembly of upper casing and lower casing, the photoelectric subassembly includes PCB board, sets up the adapter of PCB board, sets up the photoelectric chip of adapter and with the optical cable spare of adapter electric connection, the adapter is provided with the plug core spare, the adapter is electrically connected with the optical cable spare through the plug core spare. The utility model realizes signal duplex transmission, reduces manufacturing cost, promotes to alleviate overall weight, improves transmission distance, and work performance is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of optoelectronic communication technology, and in particular to an active optical cable based on COB technology. Background Technology

[0002] As various industries embrace digital transformation, the demand for high-speed, reliable connections is growing exponentially. Active optical cables play a crucial role in these fields. An active optical cable requires an external power source to enhance signal transmission performance. It uses an internal silicon chip to convert electrical signals into optical signals, or vice versa, thereby achieving high-speed data transmission. Existing active optical cables mainly adopt a structure similar to SFP+CABLE, consisting of conventional AOC optical transceiver modules and dual-channel optical cables at both ends. Conventional AOC optical transceiver modules primarily use high-precision patch equipment to fix the VCSEL laser and PD chip in designated positions, then use gold wire bonding equipment to connect the chip pads and circuit board pads, and finally use a high-precision adhesive coating machine to coat and protect the chip, gold wire, and corresponding optical connectors. Passive coupling and connection are achieved through MTP fiber optic connectors. This results in high equipment investment costs, leading to high manufacturing costs for active optical cables, as well as significant overall weight and short transmission distances. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an active optical cable based on COB technology, which enables full-duplex signal transmission, reduces manufacturing costs, reduces overall weight, increases transmission distance, and provides stable and reliable performance.

[0004] To achieve the above objectives, this utility model provides an active optical cable based on COB technology, comprising an upper shell, a lower shell connected to the upper shell, and an optoelectronic component disposed between the upper shell and the lower shell. The optoelectronic component includes a PCB board, an adapter disposed on the PCB board, an optoelectronic chip disposed on the adapter, and an optical cable component electrically connected to the adapter. The adapter is provided with a ferrule, and the adapter is electrically connected to the optical cable component through the ferrule.

[0005] Preferably, the upper housing is provided with a top cover, and a pull ring is provided between the top cover and the upper housing. An extension arm is provided at one end of the pull ring near the top cover, and a locking block is provided on both sides of the extension arm. The upper housing is provided with a slot for receiving the locking block, and a pressing block is provided at one end of the upper housing near the slot.

[0006] Preferably, connecting posts are provided on both sides of the extension arm, and a first spring is provided on the connecting post. The upper housing is provided with a receiving cavity for accommodating the first spring. One end of the first spring is sleeved on the outside of the connecting post, and the other end of the first spring abuts against the receiving cavity.

[0007] Preferably, the top cover has mounting holes and mounting screws in the mounting holes on both sides, the upper housing has first connecting holes on both sides, and the lower housing has second connecting holes on both sides. The mounting screws pass through the mounting holes, the first connecting holes, and the second connecting holes in sequence.

[0008] Preferably, positioning posts are provided around the inner wall of the top cover, and positioning grooves are provided around the outer wall of the upper shell, with the positioning posts accommodated in the positioning grooves.

[0009] Preferably, the pull ring is provided with snap-fit ​​posts on both sides, and the lower housing is provided with snap-fit ​​grooves on both sides, and the snap-fit ​​posts are engaged with the snap-fit ​​grooves.

[0010] Preferably, the pull ring has a through hole in the middle, the optical cable has an optical fiber, and the optical cable passes through the through hole and protrudes into the adapter so that the optical fiber is connected to the ferrule.

[0011] Preferably, both sides of the pull ring are provided with locking arms, and each locking arm is provided with a stop block. The stop block protrudes from the inner wall of the locking arm. Both sides of the lower housing are provided with inner cavities, and each inner cavity is provided with a second spring. One end of the second spring abuts against the stop block, and the other end of the second spring abuts against the inner cavity.

[0012] Preferably, both sides of the lower housing are provided with placement channels, the locking arm is provided with a locking block, and both the upper and lower housings are provided with locking grooves. The locking arm is accommodated in the placement channel so that the locking block protrudes into the locking groove.

[0013] The beneficial effects of this utility model are: it enables full-duplex signal transmission, reduces manufacturing costs, reduces overall weight, increases transmission distance, and provides stable and reliable performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure after the hidden top cover is installed in Embodiment 1 of this utility model.

[0016] Figure 3 This is an exploded structural diagram of Embodiment 1 of the present invention.

[0017] Figure 4 This is an exploded structural diagram of Embodiment 1 of the present invention from another angle.

[0018] Figure 5 This is a schematic diagram of the top cover structure of Embodiment 1 of this utility model.

[0019] Figure 6 This is a schematic diagram of the pull ring structure of Embodiment 1 of this utility model.

[0020] Figure 7 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0021] Figure 8 This is an exploded structural diagram of Embodiment 2 of the present invention.

[0022] The reference numerals in the figures include: 1—Upper housing; 11—Slot; 12—Pressing block 13 – Receiving cavity; 14 – First connecting hole; 15 – Positioning groove 2—Lower housing 21—Second connecting hole 22—Snap-on groove 23 – Inner cavity 24 – Second spring 25 – Placement channel 3—Optoelectronic Components; 31—PCB Board; 32—Adapter 33—Optical chip; 34—Optical cable component; 35—Intercalation core component 36—Fiber Optics 4—Top cover; 41—Mounting hole; 42—Mounting screw 43 - Positioning Post 5 – Pull ring component; 51 – Extension arm; 52 – Locking block 53 - Connecting post; 54 - First spring; 55 - Snap-on post 56 - Through hole; 57 - Clamping arm; 58 - Stop block 59 - Locking Block 6 - Locking groove. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] Example 1.

[0025] like Figures 1 to 6 As shown, this utility model discloses an active optical cable based on COB technology, including an upper housing 1, a lower housing 2 connected to the upper housing 1, and an optoelectronic component 3 disposed between the upper housing 1 and the lower housing 2. The optoelectronic component 3 includes a PCB board 31, an adapter 32 disposed on the PCB board 31, an optoelectronic chip 33 disposed on the adapter 32, and an optical cable component 34 electrically connected to the adapter 32. The adapter 32 is provided with a ferrule 35, and the adapter 32 is electrically connected to the optical cable component 34 through the ferrule 35.

[0026] Two adapters 32 are provided, spaced apart and arranged parallel to each other. The optoelectronic chip 33 is cut and then fixed to the adapter 32 using a surface mount process. A coupler is then used to couple the two adapters 32 to the PCB board 31. Finally, adhesive is applied to firmly bond the two adapters 32 to the PCB board 31, ensuring electrical connection between them. This effectively secures the PCB board 31, along with the two adapters 32, within the lower housing 2. The optical cable component 34 is correspondingly inserted into the adapter 32. The adapter 32 is electrically connected to the optical cable component 34 via a ferrule 35. Metal springs and UV adhesive are used to secure the connection between the optical cable component 34 and the adapter 32, enhancing connection stability. This invention achieves full-duplex signal transmission, reduces manufacturing costs, lightens the overall weight, increases transmission distance, and provides stable and reliable performance.

[0027] In this embodiment, the upper housing 1 is provided with a top cover 4. A pull ring 5 is provided between the top cover 4 and the upper housing 1. An extension arm 51 is provided at one end of the pull ring 5 near the top cover 4. A locking block 52 is provided on both sides of the extension arm 51. The upper housing 1 is provided with a locking groove 11 for accommodating the locking block 52. A pressing block 12 is provided at one end of the upper housing 1 near the locking groove 11. Specifically, the pull ring 5 accommodates the locking block 52 in the locking groove 11 through the extension arm 51, thereby fixing the pull ring 5 between the top cover 4 and the upper housing 1, ensuring a stable and reliable connection. By pressing the pressing block 12, the locking block 52 is disengaged from the locking groove 11, allowing the pull ring 5 to be released from between the top cover 4 and the upper housing 1.

[0028] In this embodiment, both sides of the extension arm 51 are provided with connecting posts 53, and each connecting post 53 is provided with a first spring 54. The upper housing 1 is provided with a receiving cavity 13 for accommodating the first spring 54. One end of the first spring 54 is sleeved on the outside of the connecting post 53, and the other end of the first spring 54 abuts against the receiving cavity 13. Specifically, one end of the first spring 54 is sleeved on the outside of the connecting post 53, and the other end of the first spring 54 abuts against the receiving cavity 13. Under the elastic force of the first spring 54, the reset function is good, which helps to enhance the connection stability between the locking block 52 and the locking groove 11.

[0029] In this embodiment, the top cover 4 has mounting holes 41 on both sides and mounting screws 42 disposed in the mounting holes 41. The upper housing 1 has first connecting holes 14 on both sides, and the lower housing 2 has second connecting holes 21 on both sides. The mounting screws 42 pass through the mounting holes 41 and the first connecting holes 14 in sequence and are connected to the second connecting holes 21. Specifically, the mounting screws 42 pass through the mounting holes 41 and the first connecting holes 14 in sequence and are connected to the second connecting holes 21. Tightening the mounting screws 42 fixes the top cover 4 to the top of the upper housing 1, ensuring a stable and reliable connection.

[0030] In this embodiment, positioning posts 43 are provided around the inner wall of the top cover 4, and positioning grooves 15 are provided around the outer wall of the upper housing 1. The positioning posts 43 are accommodated in the positioning grooves 15. Specifically, the upper housing 1 is inserted into the positioning grooves 15 by the positioning posts 43, so as to improve the positioning effect between the top cover 4 and the upper housing 1 and avoid the top cover 4 from shifting relative to the upper housing 1.

[0031] In this embodiment, the pull ring 5 has locking posts 55 on both sides, and the lower housing 2 has locking grooves 22 on both sides. The locking posts 55 engage with the locking grooves 22. Specifically, the two sides of the pull ring 5 are correspondingly engaged with the locking grooves 22 by the locking posts 55, thereby further strengthening the positioning of the pull ring 5 between the upper housing 1 and the lower housing 2. In this embodiment, the pull ring 5 has a through hole 56 in the middle. The optical cable 34 is provided with an optical fiber 36. The optical cable 34 passes through the through hole 56 and protrudes into the adapter 32 to connect the optical fiber 36 with the ferrule 35. Specifically, the optical cable 34 passes through the through hole 56 and protrudes into the adapter 32 to connect the optical fiber 36 with the ferrule 35. The optical cable 34 is a dual-channel optical cable, which is branched to obtain two optical fibers 36. Each optical fiber 36 is physically connected to the corresponding adapter 32 through the ferrule 35, thereby forming an optical coupling connection between the dual-channel optical cable and the optical transceiver module. The dual-channel optical cable and the optical transceiver module are physically connected to the optical transceiver module adapter 32 through the dual-channel optical cable ferrule. Its optical attenuation is controlled by the adapter 32. Therefore, this scheme is used to achieve docking, which replaces the traditional process of dispensing and curing dual-channel optical cables in COB chip-level processing technology. This avoids the risk of contaminating the optical port during the curing process of volatile substances in the adhesive, and has the advantages of good adaptability and high reliability.

[0032] Example 2.

[0033] like Figures 7 to 8 As shown, the difference between Embodiment 2 and Embodiment 1 is that both sides of the pull ring 5 are provided with locking arms 57, and each locking arm 57 is provided with a stop block 58, which protrudes from the inner wall of the locking arm 57. Both sides of the lower housing 2 are provided with inner cavities 23, and each inner cavity 23 is provided with a second spring 24. One end of the second spring 24 abuts against the stop block 58, and the other end of the second spring 24 abuts against the inner cavity 23. Specifically, when the pull ring 5 is pulled backward, the pull ring 5 is released from its position by compressing the second spring 24 through the stop block 58.

[0034] In this embodiment, both sides of the lower housing 2 are provided with placement channels 25. The locking arm 57 is provided with a locking block 59. Both the upper housing 1 and the lower housing 2 are provided with locking grooves 6. The locking arm 57 is accommodated in the placement channel 25 so that the locking block 59 protrudes into the locking groove 6. Specifically, the pull ring 5 is placed in the placement channel 25 through the locking arm 57, and the locking arm 57 is accurately locked in the locking groove 6 by the locking block 59, thereby realizing the secure fixing of the pull ring 5 between the upper housing 1 and the lower housing 2. The function of the pull ring 55 is to unlock the connection between the optical module and the switch or network card spring. Therefore, when pulling out the optical module, it is necessary to pull the pull ring 5 to pull it out smoothly.

[0035] It should be noted that, except for the features described in Example 2 which differ from those described in Example 1, all other features in Example 2 are the same as those described in Example 1, and will not be repeated here.

[0036] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An active optical cable based on COB technology, characterized in that: The device includes an upper housing, a lower housing connected to the upper housing, and an optoelectronic component disposed between the upper housing and the lower housing. The optoelectronic component includes a PCB board, an adapter disposed on the PCB board, an optoelectronic chip disposed on the adapter, and an optical cable electrically connected to the adapter. The adapter is provided with a ferrule, and the adapter is electrically connected to the optical cable through the ferrule.

2. The active optical cable based on COB technology according to claim 1, characterized in that: The upper housing is provided with a top cover, and a pull ring is provided between the top cover and the upper housing. An extension arm is provided at one end of the pull ring near the top cover. A locking block is provided on both sides of the extension arm. The upper housing is provided with a locking groove for accommodating the locking block. A pressing block is provided at one end of the upper housing near the locking groove.

3. An active optical cable based on COB technology according to claim 2, characterized in that: Both sides of the extension arm are provided with connecting posts, and the connecting posts are provided with a first spring. The upper housing is provided with a receiving cavity for accommodating the first spring. One end of the first spring is sleeved on the outside of the connecting post, and the other end of the first spring abuts against the receiving cavity.

4. An active optical cable based on COB technology according to claim 2, characterized in that: The top cover has mounting holes and mounting screws in the mounting holes on both sides. The upper housing has first connecting holes on both sides. The lower housing has second connecting holes on both sides. The mounting screws pass through the mounting holes, the first connecting holes and the second connecting holes in sequence.

5. An active optical cable based on COB technology according to claim 2, characterized in that: Positioning posts are provided around the inner wall of the top cover, and positioning grooves are provided around the outer wall of the upper shell, with the positioning posts housed within the positioning grooves.

6. An active optical cable based on COB technology according to claim 2, characterized in that: Both sides of the pull ring are provided with snap-fit ​​posts, and both sides of the lower housing are provided with snap-fit ​​grooves. The snap-fit ​​posts and snap-fit ​​grooves are engaged and connected.

7. An active optical cable based on COB technology according to claim 6, characterized in that: The pull ring has a through hole in the middle, and the optical cable has an optical fiber. The optical cable passes through the through hole and protrudes into the adapter so that the optical fiber is connected to the ferrule.

8. An active optical cable based on COB technology according to claim 2, characterized in that: Both sides of the pull ring are provided with locking arms, and each locking arm is provided with a stop block. The stop block protrudes from the inner wall of the locking arm. Both sides of the lower housing are provided with inner cavities, and each inner cavity is provided with a second spring. One end of the second spring abuts against the stop block, and the other end of the second spring abuts against the inner cavity.

9. An active optical cable based on COB technology according to claim 8, characterized in that: The lower housing has placement channels on both sides, the locking arm has a locking block, and both the upper and lower housings have locking grooves. The locking arm is accommodated in the placement channel so that the locking block protrudes into the locking groove.

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