Type-C-16P waterproof connector

Abstract

The utility model relates to the technical field of connectors, in particular to a Type C-16P waterproof connector, which comprises a first inner core and a second inner core, during manufacturing, an upper body is formed on a plurality of arranged upper terminals in an injection molding manner to form the first inner core, and a lower body is formed on a plurality of arranged lower terminals in an injection molding manner to form the second inner core; then the first inner core and the second inner core are stacked, a metal sheet body is placed between the first inner core and the second inner core, a main body is formed through injection molding, and the first inner core and the second inner core are fused into a whole; and then, the electromagnetic blocking ring and the metal shell are sleeved, and finally, the rear end part of the metal shell is sealed by pouring glue. Compared with the prior art, different modules are subjected to injection molding in three steps, so that terminal arrangement and positioning and automatic production are facilitated. And the arrangement of the electromagnetic blocking ring has the advantage of preventing electromagnetic interference and is easy to pass the European Union TID authentication.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a Type-C-16P waterproof connector. Background Art

[0002] Traditional Type-c connectors include an insulator, terminals installed in the insulator, and a metal shell covering the insulator. A mating space for mating with an external plug is formed between the front end of the metal shell and the insulator. When sealing glue at the rear end of the connector, the fusion between the inner wall of the metal shell and the rear end face of the insulating body is not good, and gaps are easily generated, reducing the waterproof performance of the connector.

[0003] Chinese patent document with publication number CN216648726U discloses a Type-c 6p waterproof female connector, which includes an insulating body, a plurality of metal terminals integrally formed with the insulating body, and a housing one covering the insulating body. The insulating body includes a main body part fixed inside the housing one. The front end face of the main body part extends forward to form a tongue part that does not contact the inner wall of the front part of the housing one. The contact parts of the metal terminals are distributed on the upper and lower surfaces of the tongue part. The housing one is a plastic shell. The rear end face of the main body part is hermetically bonded to the inner wall of the rear part of the housing one through an adhesive layer. The rear part of the fixing part of the metal terminal passes through the adhesive layer and is hermetically bonded to the adhesive layer. The rear end face of the main body part has an uneven bonding position that is hermetically fitted with the adhesive layer.

[0004] Chinese patent document with publication number CN217507791U discloses a Type-C-16P waterproof connector, which includes an insulating body, a plurality of metal terminals integrally formed with the insulating body, and a metal housing one covering the insulating body. The insulating body includes a main body part fixed inside the metal housing one. The front end face of the main body part extends forward to form a tongue part that does not contact the inner wall of the front part of the metal housing one. The contact parts of the metal terminals are distributed on the upper and lower surfaces of the tongue part. The rear end of the main body part is connected with an extension part located outside the rear end of the metal housing one and abutted against the rear end face of the metal housing one. The main body part is recessed downward in front of the extension part to form an annular recessed bonding position. The rear end of the main body part is hermetically bonded to the inner wall of the rear part of the metal housing one by setting an adhesive layer at the annular recessed bonding position. The welding part of the metal terminal penetrates and extends out of the extension part. The waterproof performance of the connector is improved.

[0005] In the prior art, the metal terminals are arranged neatly, and then the main body is injection-molded with the metal terminals. However, when the number of terminals is large, such as 16P (i.e., 16pin, 16 terminals), it is necessary to fix two rows of terminals up and down in the mold, and each row of terminals needs to be neatly spaced and positioned horizontally, resulting in high manufacturing difficulty and being not easy for automated assembly line production. Summary of the Invention

[0006] In view of all or part of the above technical problems existing in the prior art, the present utility model provides a Type-C-16P waterproof connector.

[0007] To achieve the above object, the present utility model provides the following technical solutions:

[0008] Provide a Type-C-16P waterproof connector, including a first inner core, which includes a plurality of upper terminals arranged side by side with separation, and a flat upper body injection-molded outside the plurality of upper terminals, and both ends of the plurality of upper terminals penetrate out of the upper body;

[0009] It further includes a second inner core, which includes a plurality of lower terminals arranged side by side with separation, and a flat lower body injection-molded outside the plurality of lower terminals, and both ends of the plurality of lower terminals penetrate out of the lower body;

[0010] The first inner core and the second inner core are arranged in a stacked manner and a metal sheet body is provided therebetween. The plurality of upper terminals and the plurality of lower terminals are arranged in two upper and lower rows. A positioning structure for mutual insertion is provided between the first inner core and the second inner core; the stacked upper body and the lower body are injection-molded with a main body, so that the upper body and the lower body are fixed as one body; the main body includes a flat tongue portion and an oval installation portion, and a step is formed between the tongue portion and the installation portion. The front ends of the plurality of upper terminals are bent and embedded in the main body, and the sides protrude from the top surface of the main body. The front ends of the plurality of lower terminals are bent and embedded in the main body, and the sides protrude from the bottom surface of the main body; an electromagnetic barrier ring made of metal is sleeved outside the main body;

[0011] It further includes a metal shell. The entire main body is inserted into the metal shell. The front end of the metal shell is open. There is an upper insertion cavity between the top surface of the tongue portion and the inner top surface of the metal shell, and a lower insertion cavity between the bottom surface of the tongue portion and the inner bottom surface of the metal shell; the installation portion is located in the metal shell, and the rear end of the metal shell is filled with sealant, and the ends of the plurality of upper terminals and the plurality of lower terminals penetrate out of the sealant; a sealing ring is sleeved outside the rear end of the metal shell.

[0012] As a further optional solution, the positioning structure includes a positioning post located on the upper body and a positioning hole located on the lower body. The positioning post passes through the positioning hole with interference fit, and the metal sheet body is provided with an intermediate hole for the positioning post to pass through.

[0013] As a further optional solution, the rear ends of the plurality of upper terminals and the plurality of lower terminals are bent and horizontally arranged on the same plane after passing through the sealant.

[0014] As a further optional solution, a ring groove for embedding the sealing ring is provided at the rear end of the metal shell.

[0015] As a further optional solution, the electromagnetic barrier ring includes an annular barrier body, an upper limit piece and a lower limit piece extending from the side of the barrier body. Both the upper limit piece and the lower limit piece are Z-shaped. The upper limit piece is provided with a jack, the top of the installation part is provided with a plug buckle, and the plug buckle and the jack are tightly clamped with each other. The bottom of the installation part is provided with a limit groove, and the lower limit piece is embedded in the limit groove.

[0016] As a further optional solution, the electromagnetic barrier ring is a structure formed by integral bending.

[0017] As a further optional solution, a flared chamfer is provided on the inner side of the rear port of the metal shell, and a flanging flange is provided at the end of the sealant. The flanging flange is fitted with the flared chamfer.

[0018] As a further optional solution, the outer side of the installation part is fitted with the inner side wall of the metal shell.

[0019] As a further optional solution, the upper body and the lower body are respectively provided with a plurality of through holes.

[0020] As a further optional solution, a plug board foot is integrally formed on the outer side of the metal shell. The plug board foot is a structure of attaching to the board, a structure of locking screws or a plug board structure.

[0021] The beneficial effects of the present utility model:

[0022] For the Type-C-16P waterproof connector of the present utility model, during manufacturing, first, a plurality of upper terminals are injection molded to form an upper body to form a first inner core, and a plurality of lower terminals are injection molded to form a lower body to form a second inner core. Then, the first inner core and the second inner core are stacked and a metal sheet body is placed in the middle, and the main body is injection molded to make the first inner core and the second inner core merge into a whole; then, an electromagnetic barrier ring and a metal shell are sleeved, and finally, the rear end of the metal shell is sealed with glue. Compared with the prior art, different modules are injection molded in three steps, which is convenient for terminal arrangement and positioning and automated production. Moreover, the waterproof performance is high. The setting of the electromagnetic barrier ring has the advantage of preventing electromagnetic interference and is easy to pass the EU TID certification. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the Type-C-16P waterproof connector in the embodiment.

[0024] Figure 2 It is an exploded view of the Type-C-16P waterproof connector in the embodiment.

[0025] Figure 3 It is a schematic structural diagram of the first inner core in the embodiment.

[0026] Figure 4 It is a schematic structural diagram of the second inner core in the embodiment.

[0027] Figure 5 Schematic diagram of the structure after the first inner core and the second inner core in the embodiment are stacked.

[0028] Figure 6 Schematic diagram of the structure of the combination of the first inner core and the second inner core, as well as the main body and the electromagnetic barrier ring in the embodiment.

[0029] Figure 7 Schematic diagram of the structure of multiple upper terminals, multiple lower terminals and the metal sheet in the embodiment.

[0030] Figure 8 Schematic diagram of the structure of the metal shell in the embodiment.

[0031] Figure 9 Schematic diagram of the structure of the connector in another embodiment, the difference being the different plug-in plates.

[0032] Figure 10 Schematic diagram of the structure of the connector in yet another embodiment, the difference being the different plug-in plates.

[0033] Figure 11 Shows the unilateral blocking structure of the ring groove in the embodiment, and its plug-in plate feet are screw structures.

[0034] Figure 12 Shows the unilateral blocking structure of the ring groove in the embodiment, and its plug-in plate feet are plug-in structures.

[0035] Figure 13 Shows the unilateral blocking structure of the ring groove in the embodiment, and its plug-in plate feet are plate-attaching structures.

[0036] Reference numerals:

[0037] First inner core 1, upper terminal 11, upper body 12, through hole 13;

[0038] Second inner core 2, lower terminal 21, lower body 22, positioning hole 23;

[0039] Metal sheet 3;

[0040] Main body 4, tongue portion 41, mounting portion 42, insertion buckle 43;

[0041] Electromagnetic barrier ring 5, barrier body 51, upper limit piece 52, jack 53, lower limit piece 54;

[0042] Metal shell 6, upper plugging cavity 61, lower plugging cavity 62, ring groove 63, flared chamfer 64, plug-in plate foot 65;

[0043] Sealing glue 7, flanging flange 71, sealing ring 8. Detailed implementation manners

[0044] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0045] The Type-C-16P waterproof connector of this embodiment, as Figures 1 to 8 shown, includes a first inner core 1, which includes a plurality of upper terminals 11 arranged side by side with separation, and a flat upper body 12 injection-molded outside the plurality of upper terminals 11. Both ends of the plurality of upper terminals 11 penetrate out of the upper body 12. It further includes a second inner core 2, which includes a plurality of lower terminals 21 arranged side by side with separation, and a flat lower body 22 injection-molded outside the plurality of lower terminals 21. Both ends of the plurality of lower terminals 21 penetrate out of the lower body 22.

[0046] The first inner core 1 and the second inner core 2 are arranged in a stacked manner, and a metal sheet body 3 is arranged between them. The plurality of upper terminals 11 and the plurality of lower terminals 21 are arranged in two upper and lower rows. A positioning structure for mutual insertion is arranged between the first inner core 1 and the second inner core 2. The stacked upper body 12 and lower body 22 are injection-molded with a main body 4, so that the upper body 12 and the lower body 22 are fixed as a whole. The main body 4 includes a flat tongue portion 41 and an elliptical cylindrical installation portion 42. A step is formed between the tongue portion 41 and the installation portion 42. The front ends of the plurality of upper terminals 11 are bent and embedded in the main body 4, and the sides protrude from the top surface of the main body 4. The front ends of the plurality of lower terminals 21 are bent and embedded in the main body 4, and the sides protrude from the bottom surface of the main body 4. An electromagnetic shielding ring 5 made of metal is sleeved outside the main body 4, and the electromagnetic shielding ring 5 is located at the step between the tongue portion 41 and the installation portion 42.

[0047] It further includes a metal shell 6, which is made of zinc alloy. The entire main body 4 is inserted into the metal shell 6. The front end of the metal shell 6 is in an open shape. There is an upper insertion cavity 61 between the top surface of the tongue portion 41 and the inner top surface of the metal shell 6, and there is a lower insertion cavity 62 between the bottom surface of the tongue portion 41 and the inner bottom surface of the metal shell 6. The installation portion 42 is located near the rear port of the metal shell 6, and the rear end of the metal shell 6 is filled with a sealing glue 7. The ends of the plurality of upper terminals 11 and the plurality of lower terminals 21 penetrate out of the sealing glue 7 as the parts welded to the external circuit board. A sealing ring 8 is sleeved outside the rear end of the metal shell 6 for realizing external sealing in cooperation with the using device.

[0048] During manufacturing, first, the upper body 12 is injection-molded on the arranged plurality of upper terminals 11 to form the first inner core 1 as Figure 3 shown, and the lower body 22 is injection-molded on the arranged plurality of lower terminals 21 to form as Figure 4The second inner core 2 as shown, and then stack the first inner core 1 and the second inner core 2 and place a metal sheet body 3 in the middle, and injection mold the main body 4, so that the first inner core 1 and the second inner core 2 are fused into an integral whole to form as Figure 5 the structure shown. Then, slip on the electromagnetic barrier ring 5 and the metal shell 6, and finally fill and seal the rear end of the metal shell 6 with glue. Compared with the prior art, different modules are injection molded in three steps, which is convenient for terminal arrangement and positioning as well as automated production. Moreover, it has high waterproof performance. The setting of the electromagnetic barrier ring 5 has the advantage of preventing electromagnetic interference and is easy to pass the EU TID certification.

[0049] In this embodiment, the positioning structure includes positioning posts (not shown in the figure, specifically two cylinders) located on the upper body 12 and positioning holes 23 located on the lower body 22. The positioning posts pass through the positioning holes 23 with an interference fit. The metal sheet body 3 is provided with intermediate holes for the positioning posts to pass through, which is convenient for positioning each other.

[0050] In this embodiment, the rear ends of multiple upper terminals 11 and multiple lower terminals 21 pass through the sealant 7 and then are bent and horizontally arranged on the same plane, which is convenient for welding with the peripheral circuit board.

[0051] In this embodiment, a ring groove 63 for embedding the sealing ring 8 is provided at the rear end of the metal shell 6. During assembly, the sealing ring 8 can be directly sleeved in the ring groove 63. The ring groove 63 can be as Figure 8 the structure shown, with barriers at both the front and the back. Actually, it can be changed to be as Figures 11 to 13 shown, where the ring groove has a barrier on only one side, and the positioning of the sealing ring can also be achieved.

[0052] In this embodiment, the electromagnetic barrier ring 5 includes an annular barrier body 51, an upper limiting piece 52 and a lower limiting piece 54 extending from the side of the barrier body 51. Both the upper limiting piece 52 and the lower limiting piece 54 are in a Z shape. The upper limiting piece 52 is provided with a jack 53, and the top of the installation part 42 is provided with a plug 43. The plug 43 and the jack 53 are clamped with each other. The bottom of the installation part 42 is provided with a limiting groove, and the lower limiting piece 54 is embedded in the limiting groove. During installation, only the electromagnetic barrier ring needs to be sleeved from the tongue part 41 and clamped, and the assembly is quick and convenient. Specifically, the electromagnetic barrier ring 5 is a structure formed by integral bending.

[0053] In this embodiment, a flared chamfer 64 is provided on the inner side of the rear port of the metal shell 6, and a flanged edge 71 is provided at the end of the sealant 7. The flanged edge 71 is fitted with the flared chamfer 64 to enhance the sealing effect.

[0054] In this embodiment, the outer side of the installation part 42 is fitted with the inner side wall of the metal shell 6, and the structure is compact.

[0055] As a further optional solution, the upper body 12 and the lower body 22 are respectively provided with a plurality of through holes 13, which facilitate the hot-melt plastic to flow into the through holes 13 when the main body 4 is injection-molded, and after curing, the upper body 12 and the lower body 22 are fixedly connected to each other with high strength.

[0056] In this embodiment, a plug-in pin 65 is integrally formed on the outer side of the metal shell 6 for installation with the peripheral structure. In practice, the plug-in pin 65 can be Figure 1 the form of a patch board shown, and can be like Figure 9 the form of screwing with a middle opening shown, or can be like Figure 10 the form of a plug-in board with an L-shaped bend shown.

[0057] In the description of the present invention, obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0058] Therefore, the above detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0059] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. Type-C-16P waterproof connector, characterized in that: It comprises a first inner core (1), which comprises a plurality of upper terminals (11) which are separated and arranged in parallel, and a flat upper body (12) which is injection-molded outside the plurality of upper terminals (11), and the two ends of the plurality of upper terminals (11) extend out of the upper body (12); It also includes a second inner core (2), which includes a plurality of lower terminals (21) that are separated and arranged in parallel, and a flat lower body (22) that is injection-molded outside the plurality of lower terminals (21), and the two ends of the plurality of lower terminals (21) extend out of the lower body (22); The first inner core (1) and the second inner core (2) are stacked and arranged with a metal sheet (3) therebetween; a plurality of upper terminals (11) and a plurality of lower terminals (21) are arranged in two rows, one above the other; a mutually pluggable positioning structure is provided between the first inner core (1) and the second inner core (2); the stacked upper body (12) and the lower body (22) are injection molded with a main body (4), so that the upper body (12) and the lower body (22) are fixed as one body; the main body (4) comprises a flat tongue (41) and an elliptical mounting portion (42), a step is formed between the tongue (41) and the mounting portion (42); the front ends of the plurality of upper terminals (11) are bent and embedded in the main body (4) and the side portions protrude from the top surface of the main body (4); the front ends of the plurality of lower terminals (21) are bent and embedded in the main body (4) and the side portions protrude from the bottom surface of the main body (4); the outer side of the main body (4) is provided with an electromagnetic blocking ring (5) made of a metal material; It also includes a metal shell (6), the entire main body (4) is inserted into the metal shell (6), the front end of the metal shell (6) is open, an upper plug-in cavity (61) is left between the top surface of the tongue (41) and the inner top surface of the metal shell (6), and a lower plug-in cavity (62) is left between the bottom surface of the tongue (41) and the inner bottom surface of the metal shell (6); the mounting portion (42) is located in the metal shell (6), and the rear end of the metal shell (6) is filled with sealing glue (7), and the ends of a plurality of upper terminals (11) and a plurality of lower terminals (21) are inserted through the sealing glue (7); and a sealing ring (8) is sleeved on the outer side of the rear end of the metal shell (6).

2. The Type-C-16P waterproof connector according to claim 1, characterized in that: The positioning structure comprises a positioning column located on the upper body (12) and a positioning hole (23) located on the lower body (22); the positioning column passes through the positioning hole (23) in an interference fit; and the metal sheet (3) is provided with a middle hole for the positioning column to pass through.

3. The Type-C-16P waterproof connector according to claim 1, characterized in that: The rear ends of the plurality of upper terminals (11) and the plurality of lower terminals (21) pass through the sealant (7) and are bent and arranged horizontally on the same plane.

4. The Type-C-16P waterproof connector according to claim 1, characterized in that: The rear end of the metal housing (6) is provided with a ring groove (63) for the sealing ring (8) to be embedded.

5. The Type-C-16P waterproof connector according to claim 1, characterized in that: Electromagnetic blocking The ring (5) comprises an annular barrier body (51), an upper limit piece (52) and a lower limit piece (54) extending from the side of the barrier body (51), the upper limit piece (52) and the lower limit piece (54) both being Z-shaped, the upper limit piece (52) being provided with an insertion hole (53), the top of the mounting portion (42) being provided with a buckle (43), the buckle (43) and the insertion hole (53) being clamped with each other, the bottom of the mounting portion (42) being provided with a limiting groove, the lower limit piece (54) being embedded in the limiting groove.

6. The Type-C-16P waterproof connector according to claim 5, characterized in that: The electromagnetic blocking ring (5) is an integrally bent structure.

7. The Type-C-16P waterproof connector according to claim 1, characterized in that: A flared chamfer (64) is provided on the inner side of the rear port of the metal shell (6), and a flanging flange (71) is provided on the end of the sealant (7), and the flanging flange (71) is fitted with the flared chamfer (64).

8. The Type-C-16P waterproof connector according to claim 1, characterized in that: The outer side of the mounting portion (42) is in contact with the inner side wall of the metal shell (6).

9. The Type-C-16P waterproof connector according to claim 1, characterized in that: The upper body (12) and the lower body (22) are respectively provided with a plurality of through holes (13).

10. The Type-C-16P waterproof connector according to claim 1, characterized in that: The outer side of the metal shell (6) is integrally formed with a plug-in board foot (65), and the plug-in board foot (65) is a board-attached structure, a screw-locking structure or a plug-in board structure.

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