Flat easy-to-assemble optical port connector for optimizing hot air circulation channel

Abstract

The flat easy-to-assemble optical port connector for optimizing the hot air circulation channel comprises a connector shell and a metal terminal group, the connector shell comprises a left side wall, a right side wall, a top wall and a bottom wall, the rear end of the top wall, the left side wall and the right side wall form a first gap, and the bottom wall, the left side wall and the right side wall form a second gap. The metal terminal group comprises an A group of metal terminals, a B group of metal terminals, a C group of metal terminals and a D group of metal terminals. After the metal terminal group is assembled on the connector shell, the first gap is a first hot air circulation channel opening for connector SMT reflow soldering, the surface of the bottom wall is provided with a groove opening, and the groove opening is a second hot air circulation channel. Third notches are formed in the lower ends, corresponding to the second notches, of the left side wall and the right side wall, the third notches form third hot air circulation channels, the bottom welding feet of the metal terminal set can receive hot air comprehensively, it is ensured that the terminal welding feet are tinned, and the welding quality of the lower end welding feet of the metal terminal set and the PCBA board is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of signal connectors, in particular to a flat and easy-to-assemble optical port connector with an optimized hot air circulation channel. Background Art

[0002] QSFP, full name Quad Small Form-factor Pluggable, is a small form-factor pluggable optical module. Currently, the QSFP28 (19*2 = 38pins) optical module has four electrical channels, and the operating rate of each channel is 10Gbps or 25Gbps, supporting 40G and 100G Ethernet applications. The QSFP-DD (19*4 = 76pins) electrical connector increases the number of channels to eight. By NRZ modulation, the operating rate of each channel reaches 25Gbps, or by PAM4 modulation, the operating rate of each channel reaches 50Gbps, thus supporting 200Gbps or 400Gbps. The main applications include switches, routers, host adapter buses, enterprise storage, high-density, high-speed I / O, multi-channel interconnection, etc. For further increasing the operating rate and adding the high-speed signal transmission link to sixteen pairs, the number of its terminals reaches up to 35pins / group * 4 = 140pins. The number of terminals in each group nearly doubles, and the number density and lateral width of the terminals in the same group bring difficulties to the overall assembly and SMT soldering of the connector. Corresponding improvements are required in the structural design to solve the above problems. Summary of the Utility Model

[0003] In view of this, the utility model provides a flat and easy-to-assemble optical port connector with an optimized hot air circulation channel, which solves the problems that the hot air of the terminals near the middle does not circulate and is not easy to solder in the SMT reflow soldering due to the increase in the number of metal terminals of the connector, and overcomes the problem of difficult assembly of the metal terminal group.

[0004] The technical solution disclosed by the utility model, a flat and easy-to-assemble optical port connector with an optimized hot air circulation channel, includes a connector housing and a metal terminal group. The connector housing includes a left side wall, a right side wall, a top wall and a bottom wall. The left side wall, the right side wall, the top wall and the bottom wall form a rectangular cross-section structure. The rear end of the top wall forms a first notch with the left side wall and the right side wall, and the bottom wall forms a second notch with the left side wall and the right side wall. The metal terminal group includes group A metal terminals, group B metal terminals, group C metal terminals and group D metal terminals. The group A metal terminals, group B metal terminals, group C metal terminals and group D metal terminals are assembled in the connector housing in a stacked manner. After the metal terminal group is assembled in the connector housing, the first notch is the first hot air circulation channel port for the SMT reflow soldering of the connector, and a groove opening is arranged on the surface of the bottom wall. The groove opening is the second hot air circulation channel for the SMT reflow soldering of the connector.

[0005] Further, the group A metal terminals include group A terminals and a plastic part A formed by molding, the group B metal terminals include group B terminals and a plastic part B formed by molding, the group C metal terminals include group C terminals and a plastic part C formed by molding, and the group D metal terminals include group D terminals and a plastic part D formed by molding. The plastic part A is fixedly connected to the inner wall of the connector housing. The plastic part C abuts against the rear end of the plastic part A. The plastic parts D and B are in an inverted "L" shape. The plastic part D is clamped on the plastic part C, and the plastic part B is clamped on the plastic part D, so that the group A terminals and the group B terminals are opposite to each other vertically, and the group C terminals and the group D terminals are opposite to each other vertically.

[0006] Further, the rear ends of the plastic part B and the plastic part D are respectively provided with a first opening part and a second opening part which are obliquely upwardly opened. The top surface of the plastic part C is provided with a third opening part penetrating up and down. The first opening part, the second opening part, the third opening part and the first notch form a first hot air flow channel.

[0007] Further, at least two first clamping parts are arranged on the bottom wall and distributed left and right. The plastic part A is provided with a second clamping part corresponding to and clamped with the first clamping part. At least two third clamping parts are arranged on the top wall and distributed left and right. The plastic part B is provided with a fourth clamping part corresponding to and clamped with the third clamping part.

[0008] Further, the front ends of the group A terminals and the group C terminals are upper convex bending ends formed by stamping. The front ends of the group B terminals and the group D terminals are lower convex bending ends formed by stamping. The inner surface of the front end of the bottom wall is provided with a pressing and positioning guide groove for the group A terminals. The inner surface of the front end of the top wall is provided with a pressing and positioning guide groove for the group B terminals. The plastic part A is provided with a pressing and positioning guide groove for the group C terminals. The bottom of the plastic part B is provided with a pressing and positioning guide groove for the group D terminals.

[0009] Further, on the inner sides of the rear ends of the left side wall and the right side wall, there are first guide grooves, second guide grooves and third guide grooves which are opposite and distributed from bottom to top. The left and right sides of the plastic part A are provided with A convex parts, and the A convex parts are inserted from the first guide grooves. The left and right sides of the plastic part C are provided with C1 convex parts and C2 convex parts. The C1 convex part enters the first guide groove, and the C2 convex part enters the second guide groove. The left and right sides of the plastic part D are provided with D1 convex parts and D2 convex parts. The D1 convex part enters the first guide groove. The left and right sides of the plastic part B are provided with B1 convex parts and B2 convex parts. The B1 convex part enters the first guide groove, and the D2 convex part and the B2 convex part are combined and enter the third guide groove.

[0010] Further, the top surface of the plastic part C and the bottom surface of the plastic part D are provided with a first positioning structure which are clamped with each other. The top surface of the plastic part D and the bottom surface of the plastic part B are provided with a second positioning structure which are clamped with each other.

[0011] Further, the first positioning structure is that at least two first convex columns are provided on the top surface of the plastic part C, and corresponding first grooves for sleeving the first convex columns are provided on the bottom surface of the plastic part D. The second positioning structure is that at least two second convex columns are provided on the bottom surface of the plastic part B, and corresponding second grooves for sleeving the second convex columns are provided on the top surface of the plastic part D.

[0012] Further, third notches are provided at the lower ends of the left side wall and the right side wall corresponding to the second notches, and the third notches form a third hot air circulation channel for the SMT reflow soldering of the optical port connector.

[0013] The optical port connector designed by this technical solution has the following beneficial effects:

[0014] For the further improvement of the QSFP-DD optical port connector, the number of metal terminals is increased, and the high-speed signal transmission link is increased to sixteen pairs. Due to the increase in the number and density of the terminals, it is difficult for the hot air to flow to the terminals in the middle position during the SMT reflow soldering of the connector, resulting in difficult soldering. The design of the connector housing and the metal terminal group in this solution realizes a first hot air circulation channel that communicates from the rear upper oblique position of the connector to the bottom of the connector. There is a groove opening on the outer surface of the bottom wall of the connector housing at the bottom of the connector. The groove opening is beneficial for the solder feet of the bottom metal terminals at the bottom of the connector, mainly near the middle position, and a second hot air circulation channel can be realized through the groove opening. Third notches are provided at the lower ends of the left side wall and the right side wall corresponding to the second notches, and the third notches form a third hot air circulation channel for the SMT reflow soldering of the optical port connector. By optimizing the hot air circulation channel of the optical port connector, the metal terminals with a large number and high density in this solution can better obtain hot air coverage, realizing the soldering of the solder feet of the terminals, so as to ensure the quality of the SMT reflow soldering of the product.

[0015] On the other hand, it is the structural design of the plastic parts of the metal terminal group. Protrusions are provided on the left and right sides of the plastic parts to cooperate with the chutes provided on the inner sides of the left side wall and the right side wall of the connector housing. The protrusions are used as guide posts to cooperate with the chutes. After the metal terminal group is assembled, its bottom forms a flat butt joint, which is beneficial for the SMT soldering of the bottom solder feet of the metal terminal group. At the same time, it also makes it more convenient and fast to assemble the metal terminal group into the connector housing, improving production efficiency. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the connector housing and the metal terminal group of the present invention.

[0017] Figure 2 It is an exploded schematic structural diagram of the metal terminal group of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the group A metal terminals of the present invention.

[0019] Figure 4 Schematic diagram of the C-group metal terminal structure of the present utility model.

[0020] Figure 5 Schematic diagram of the bottom view structure of the D-group metal terminal of the present utility model.

[0021] Figure 6 Schematic diagram of the top view structure of the D-group metal terminal of the present utility model.

[0022] Figure 7 Schematic diagram of the bottom view structure of the B-group metal terminal of the present utility model.

[0023] Figure 8 Schematic diagram of the top view structure of the B-group metal terminal of the present utility model.

[0024] Figure 9 Schematic diagram of the front view structure of the overall structure of the present utility model.

[0025] Figure 10 Schematic diagram of the rear view structure of the overall structure of the present utility model.

[0026] Figure 11 Schematic diagram of the bottom view structure of the overall structure of the present utility model.

[0027] Reference numerals:

[0028] 1. Connector housing; 11. Left side wall; 12. Right side wall; 121. Third notch; 111. First guiding groove; 112. Second guiding groove; 113. Third guiding groove; 13. Top wall; 131. First notch; 132. B-group terminal pressing and positioning guiding groove; 133. Upper clamping interface; 14. Bottom wall; 141. Second notch; 142. Groove opening; 143. Lower clamping interface; 144. A-group terminal pressing and positioning guiding groove; 2. Metal terminal group; 21. A-group metal terminals; 211. A-group terminals; 212. Plastic part A; 2121. C-group terminal pressing and positioning guiding groove; 2122. A protrusion; 2123. Lower clamping hook; 22. C-group metal terminals; 221. C-group terminals; 222. Plastic part C; 2221. Third opening; 2222. First stud; 2223. C1 protrusion; 2224. C2 protrusion; 23. D-group metal terminals; 231. D-group terminals; 232. Plastic part D; 2321. Second opening; 2322. First groove; 2323. D1 protrusion; 2324. D2 protrusion; 2325. Second groove; 24. B-group metal terminals; 241. B-group terminals; 242. Plastic part B; 2421. First opening; 2422. Second stud; 2423. B1 protrusion; 2424. B2 protrusion; 2425. Upper clamping hook; 2426. D-group terminal pressing and positioning guiding groove. Detailed implementation mode

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further details this application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0030] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It also should be noted that the orientation terms such as left, right, top and bottom in the embodiments of this application are only relative concepts to each other or are referenced based on the normal use state of the product, and should not be considered restrictive.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0033] Please refer to Figures 1 to 11 , which provides an embodiment of a flat and easily assembled optical port connector with an optimized hot air flow channel for this technical solution.

[0034] Refer to Figure 1 、 Figures 9 to 11 , the optical port connector includes a connector housing 1 and a metal terminal group 2. The connector housing 1 includes a left side wall 11, a right side wall 12, a top wall 13 and a bottom wall 14. The left side wall 11, the right side wall 12, the top wall 13 and the bottom wall 14 form a rectangular cross-section structure. The rear end of the top wall 13 forms a first notch 131 with the left side wall 11 and the right side wall 12, and the bottom wall 14 forms a second notch 141 with the left side wall 11 and the right side wall 12. The metal terminal group 2 includes an A-group metal terminal 21, a B-group metal terminal 24, a C-group metal terminal 22, and a D-group metal terminal 23. The A-group metal terminal 21, the B-group metal terminal 24, the C-group metal terminal 22, and the D-group metal terminal 23 are assembled in the connector housing 1 in a stacked manner.

[0035] After the metal terminal group 2 is assembled in the connector housing 1, the first notch 131 is the first hot air flow channel port for the connector SMT reflow soldering. A groove port 142 is provided on the surface of the bottom wall 14, and the groove port 142 is the second hot air flow channel for the connector SMT reflow soldering. The second notch 141 serves as the solder foot area for exposing the entire lower end of the metal terminal group 2 after assembly.

[0036] Refer to Figure 2 , further, the A-group metal terminal 21 includes an A-group terminal 211 and a plastic part A212 formed by MOLDING. The B-group metal terminal 24 includes a B-group terminal 241 and a plastic part B242 formed by MOLDING. The C-group metal terminal 22 includes a C-group terminal 221 and a plastic part C222 formed by MOLDING. The D-group metal terminal 23 includes a D-group terminal 231 and a plastic part D232 formed by MOLDING. The plastic part A212 is fixedly connected to the inner wall of the connector housing 1. The plastic part C222 abuts against the rear end of the plastic part A212. The plastic parts D232 and B242 are in an inverted "L" shape. The plastic part D232 is buckled on the plastic part C222, and the plastic part B242 is buckled on the plastic part D232, forming the A-group terminal 211 and the B-group terminal 241 facing each other up and down, and the C-group terminal 221 and the D-group terminal 231 facing each other up and down.

[0037] Refer to Figure 4 、 Figure 5 、 Figure 7, further, the rear ends of the plastic part B242 and the plastic part D232 are respectively provided with a first opening 2421 and a second opening 2321 which are obliquely upwardly opened, and the top surface of the plastic part C222 is provided with a third opening 2221 penetrating up and down. The first opening 2421, the second opening 2321, the third opening 2221 and the first notch 131 form a first hot air circulation channel.

[0038] Refer to Figure 1 , Figure 11 , preferably, at the lower end positions of the left side wall 11 and the right side wall 12 corresponding to the second notch 141, a third notch 121 is provided, and the third notch 121 forms a third hot air circulation channel for the SMT reflow soldering of the optical port connector.

[0039] Through the design of the connector housing 1 and the metal terminal group 2 designed by this solution, a first hot air circulation channel communicating from the obliquely upward position at the rear end of the connector to the bottom of the connector is formed. The bottom of the connector, that is, the outer surface of the bottom wall 14 of the connector housing 1, is provided with a groove opening 142. The groove opening 142 is beneficial to the bottom of the connector, mainly the solder feet of the bottom metal terminals near the middle position. A second hot air circulation channel can be realized through the groove opening 142. At the lower end positions of the left side wall 11 and the right side wall 12 corresponding to the second notch 141, a third notch 121 is provided, and the third notch 121 forms a third hot air circulation channel for the SMT reflow soldering of the optical port connector. By optimizing the hot air circulation channel of the optical port connector, it is realized that the metal terminals with a large number of terminals and high density in this solution can better obtain hot air coverage, and the soldering of the solder feet of the terminals is realized, so as to ensure the quality of the SMT reflow soldering of the product.

[0040] Further, at least two first clamping portions are arranged on the bottom wall 14 in a left-right distribution, the plastic part A212 is provided with a second clamping portion corresponding to be clamped with the first clamping portion, at least two third clamping portions are arranged on the top wall 13 in a left-right distribution, and the plastic part B242 is provided with a fourth clamping portion corresponding to be clamped with the third clamping portion.

[0041] As a preferred solution, refer to Figure 1 , Figure 8 , Figure 9 , the first clamping portion adopts lower clamping openings 143 arranged on the bottom in a left-right distribution, lower clamping hooks 2123 clamped with the lower clamping openings 143 are arranged at the bottom of the plastic part A212, upper clamping openings 133 are arranged on the top wall 13, and upper clamping hooks 2425 clamped with the upper clamping openings 133 are arranged at the top of the plastic part B242. Both the upper clamping hooks 2425 and the lower clamping hooks 2123 are hooks with a triangular cross-section, and are inserted into the connector housing 1 to realize quick clamping and fixing.

[0042] Refer to Figures 1 to 3 , Figure 7, Figure 10 , further, the front ends of the Group A terminals 211 and the Group C terminals 221 are upwardly convex bent ends formed by stamping, and the front ends of the Group B terminals 241 and the Group D terminals 231 are downwardly convex bent ends formed by stamping. An inner surface of the front end of the bottom wall 14 is provided with a Group A terminal pressing and positioning guiding groove 144, an inner surface of the front end of the top wall 13 is provided with a Group B terminal pressing and positioning guiding groove 132, the plastic part A 212 is provided with a Group C terminal pressing and positioning guiding groove 2121, and the bottom of the plastic part B 242 is provided with a Group D terminal pressing and positioning guiding groove 2426. By designing the positioning guiding grooves, it is beneficial for the metal terminals to be inserted and connected to the gold finger connector head, and the metal terminals have an up-and-down pressing movement space, which is beneficial to protecting the bent ends of the metal terminals from excessive deformation and is beneficial to maintaining a long-term good contact.

[0043] Referring to Figures 1 to 11 , further, inner sides of the rear ends of the left side wall 11 and the right side wall 12 are provided with first guiding grooves 111, second guiding grooves 112, and third guiding grooves 113 that are opposite and distributed from bottom to top. The left and right sides of the plastic part A 212 are provided with A protruding parts 2122, and the A protruding parts 2122 are inserted into the first guiding grooves 111. The left and right sides of the plastic part C 222 are provided with C1 protruding parts 2223 and C2 protruding parts 2224. The C1 protruding parts 2223 enter the first guiding grooves 111, and the C2 protruding parts 2224 enter the second guiding grooves 112. The left and right sides of the plastic part D 232 are provided with D1 protruding parts 2323 and D2 protruding parts 2324. The D1 protruding parts 2323 enter the first guiding grooves 111. The left and right sides of the plastic part B 242 are provided with B1 protruding parts 2423 and B2 protruding parts 2424. The B1 protruding parts 2423 enter the first guiding grooves 111. The D2 protruding parts 2324 and the B2 protruding parts 2424 are combined and enter the third guiding grooves 113.

[0044] During the actual assembly process, first, the Group A metal terminals 21 are inserted into the connector housing 1, then the Group C metal terminals 22, the Group D metal terminals 23, and the Group B metal terminals are stacked in sequence to form a whole, and then this whole is inserted into the connector housing 1. The metal terminal group 2 assembled in the connector housing 1 forms a stacked shape. The Group A metal terminals 21 define the front end positions of the Group C metal terminals 22, the Group D metal terminals 23, and the Group B metal terminals 24. The Group B metal terminals define the rear end positions of the Group A metal terminals 21, the Group C metal terminals 22, and the Group D metal terminals 23. And the upper card interface 133 on the top surface is clamped with the upper clamping hook 2425, the lower card interface 143 on the bottom surface and the lower clamping hook 2123 are clamped, and the left and right sides are fixed and limited in the up-down, front-back, and left-right directions through the staggered protruding parts and guiding grooves and are assembled in the connector housing 1 and are not easy to loosen.

[0045] Furthermore, a first positioning structure for mutual buckling is provided on the top surface of the plastic part C222 and the bottom surface of the plastic part D232, and a second positioning structure for mutual buckling is provided on the top surface of the plastic part D232 and the bottom surface of the plastic part B222.

[0046] Furthermore, the first positioning structure is that at least two first convex columns 2222 are provided on the top surface of the plastic part C222, and correspondingly, a first groove 2322 for sleeving the first convex columns 2222 is provided on the bottom surface of the plastic part D232. The second positioning structure is that at least two second convex columns 2422 are provided on the bottom surface of the plastic part B222, and correspondingly, a second groove 2325 for sleeving the second convex columns 2422 is provided on the top surface of the plastic part D232.

[0047] Through this solution, in the structural design of the plastic parts of the metal terminal group, the convex portions are provided on the left and right sides of the plastic parts to cooperate with the chutes provided on the inner sides of the left side wall 11 and the right side wall 12 of the connector housing 1, so that the convex portions are used as guide columns to cooperate with the chutes. After the metal terminal group is assembled, a flat butt joint bottom is formed at the bottom thereof, which is beneficial to the SMT soldering of the bottom solder feet of the metal terminal group. At the same time, it also makes it more convenient and fast to assemble the metal terminal group into the connector housing, improving the production efficiency.

[0048] The various embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the disclosed embodiments.

Claims

1. A flat and easy-to-assemble optical connector that optimizes the hot air flow channel, characterized in that: include: The connector housing comprises a left side wall, a right side wall, a top wall and a bottom wall, wherein the left side wall, the right side wall, the top wall and the bottom wall form a rectangular structure in cross section, the rear end of the top wall forms a first notch with the left side wall and the right side wall, and the bottom wall forms a second notch with the left side wall and the right side wall; The metal terminal group includes a group A metal terminal, a group B metal terminal, a group C metal terminal, and a group D metal terminal. The group A metal terminal, the group B metal terminal, the group C metal terminal, and the group D metal terminal are assembled in the connector housing in a stacked shape. Among them, after the metal terminal group is assembled on the connector housing, the first notch is the first hot air circulation channel opening for the SMT reflow soldering of the optical port connector, and a groove opening is set on the surface of the bottom wall, which is the second hot air circulation channel for the SMT reflow soldering of the optical port connector.

2. The flat and easy-to-assemble optical port connector with optimized hot air flow channel according to claim 1, characterized in that: The group A metal terminals include group A terminals and a molded plastic part A, the group B metal terminals include group B terminals and a molded plastic part B, the group C metal terminals include group C terminals and a molded plastic part C, and the group D metal terminals include group D terminals and a molded plastic part D. The plastic part A is fixedly connected to the inner wall of the connector housing, the plastic part C abuts against the rear end of the plastic part A, the plastic part D and the plastic part B are in an inverted "L" shape, the plastic part D is buckled on the plastic part C, and the plastic part B is buckled on the plastic part D, so that the group A terminals and the group B terminals are opposite to each other up and down, and the group C terminals and the group D terminals are opposite to each other up and down.

3. The flat and easy-to-assemble optical port connector with optimized hot air flow channel according to claim 2, characterized in that: The rear ends of the plastic parts B and D are respectively provided with a first opening and a second opening which are opened obliquely upwards, and the top surface of the plastic part C is provided with a third opening which runs through from top to bottom. The first opening, the second opening, the third opening and the first notch form a first hot air circulation channel.

4. The flat and easy-to-assemble optical port connector with optimized hot air flow channel according to claim 2, characterized in that: At least two first clamping parts distributed on the left and right are arranged on the bottom wall, a second clamping part corresponding to the first clamping part is arranged on the plastic part A, at least two third clamping parts distributed on the left and right are arranged on the top wall, and a fourth clamping part corresponding to the third clamping part is arranged on the plastic part B.

5. The flat and easy-to-assemble optical port connector with optimized hot air flow channel according to claim 2, characterized in that: The front ends of the terminals in group A and group C are stamped upward convex curved ends, the front ends of the terminals in group B and group D are stamped downward convex curved ends, the front end inner surface of the bottom wall is provided with a pressing and positioning guide groove for the terminals in group A, the front end inner surface of the top wall is provided with a pressing and positioning guide groove for the terminals in group B, the plastic part A is provided with a pressing and positioning guide groove for the terminals in group C, and the bottom of the plastic part B is provided with a pressing and positioning guide groove for the terminals in group D.

6. The flat and easy-to-assemble optical connector with optimized hot air flow channel according to claim 2, characterized in that: The inner sides of the rear ends of the left and right walls are provided with a first guide groove, a second guide groove, and a third guide groove which are opposite to each other and distributed from bottom to top. A protrusion A is provided on the left and right sides of the plastic part A, and the protrusion A is inserted from the first guide groove. C1 protrusion C2 is provided on the left and right sides of the plastic part C, and the protrusion C1 enters the first guide groove, and the protrusion C2 enters the second guide groove. D1 protrusion D2 is provided on the left and right sides of the plastic part D, and the protrusion D1 enters the first guide groove. B1 protrusion B2 is provided on the left and right sides of the plastic part B, and the protrusion B1 enters the first guide groove, and the combination of the protrusion D2 and the protrusion B2 enters the third guide groove.

7. The flat and easy-to-assemble optical port connector with optimized hot air flow channel according to claim 6, characterized in that: The top surface of the plastic part C and the bottom surface of the plastic part D are provided with first positioning structures that buckle with each other, and the top surface of the plastic part D and the bottom surface of the plastic part B are provided with second positioning structures that buckle with each other.

8. The flat and easy-to-assemble optical connector with optimized hot air flow channel according to claim 7, characterized in that: The first positioning structure is that the top surface of the plastic part C is provided with at least two first protrusions, and the bottom surface of the plastic part D is correspondingly provided with a first groove that is sleeved with the first protrusions. The second positioning structure is that the bottom surface of the plastic part B is provided with at least two second protrusions, and the top surface of the plastic part D is correspondingly provided with a second groove that is sleeved with the second protrusion.

9. The flat and easy-to-assemble optical connector with optimized hot air flow channel according to claim 1, characterized in that: A third notch is provided at the lower end position of the left wall and the right wall corresponding to the second notch, and the third notch forms a third hot air flow channel for SMT reflow soldering of the optical port connector.

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