Waterproof patch type Type-C connector

Abstract

The utility model discloses a waterproof patch type Type-C connector, which comprises an insulating body, an upper row of terminals, a lower row of terminals, a middle clamping piece and a shielding shell, the insulating body comprises a base and a tongue plate which extends forwards from the base; the shielding shell comprises an inner shell and an outer shell; the inner shell is a seamless stretching shell, the rear end of the inner shell is connected with the base in a sealed and sleeved mode, and a waterproof ring is arranged at the front end of the inner shell in a sleeved mode. And the outer shell is a stamping shell, is coated outside the inner shell and is positioned behind the waterproof ring. According to the Type-C connector, the front end of the tongue plate is designed to forwards extend out of the shielding shell, so that the length of the shielding shell is shortened, the installation space of the whole Type-C connector can be saved, the requirement for miniaturization of equipment is met, meanwhile, the shielding shell is composed of the inner shell body and the outer shell body, the inner shell body is a seamless stretching shell, and the front end of the inner shell body is sleeved with the waterproof ring in a matched mode; therefore, the good waterproof characteristic is achieved, and the use requirement is met.

Description

Technical Field

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

[0002] Type-C is a USB interface form factor standard with a smaller volume than both Type-A and Type-B. It is an interface type that can be applied to both a PC (host device) and an external device (slave device, such as a mobile phone). USB Type-C has 4 pairs of TX / RX lines, 2 pairs of USBD+ / D-, one pair of SBU, 2 CCs, and in addition, 4 VBUSs and 4 ground wires.

[0003] The main structure of the current Type-C connector includes an insulating body, a shielding shell, upper row terminals, lower row terminals, and a middle clip; the shielding shell is wrapped outside the insulating body and is formed by stamping and riveting; the upper row terminals, lower row terminals, and middle clip are all arranged on the insulating body. The upper row terminals have upper ground terminals and upper power terminals, the lower row terminals have lower ground terminals and lower power terminals, and the middle clip is located between the upper row terminals and the lower row terminals.

[0004] In the prior art, the tongue plates of the insulating body of the standard Type-C connector are all located inside the shielding shell, resulting in a longer length of the shielding shell. As a result, the entire Type-C connector occupies a larger space in the device during installation, unable to meet the requirements of device miniaturization. Moreover, the shielding shell of this standard Type-C connector is generally a stamping shell with many gaps, allowing external moisture to easily penetrate through the gaps into the device interior, resulting in poor waterproof performance. Therefore, it is necessary to improve the current Type-C connector. Summary of the Utility Model

[0005] In view of this, in view of the deficiencies of the prior art, the main purpose of the present utility model is to provide a waterproof patch type Type-C connector, which can effectively solve the problems that the existing Type-C connector cannot meet the requirements of device miniaturization and has poor waterproof performance.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A waterproof patch-type Type-C connector includes an insulating body, upper row terminals, lower row terminals, a middle clip, and a shielding shell; the insulating body includes a base and a tongue plate extending forward from the base; the upper row terminals, lower row terminals, and middle clip are all integrally molded and fixed in the insulating body, the upper row terminals and lower row terminals are arranged separately up and down, the contact portions of the upper row terminals and the contact portions of the lower row terminals are respectively exposed on the upper and lower surfaces of the tongue plate, the welding portions of the upper row terminals and the welding portions of the lower row terminals both extend out of the base, the middle clip is located between the upper row terminals and the lower row terminals; the shielding shell covers the outside of the insulating body; the front end of the tongue plate extends forward out of the shielding shell, and the shielding shell includes an inner shell and an outer shell; the inner shell is a seamless drawn shell, the rear end of the inner shell is sealingly sleeved and connected with the base, and a waterproof ring is sleeved on the front end of the inner shell; the outer shell is a stamping shell, the outer shell covers the outside of the inner shell and is located behind the waterproof ring, and the outer shell is fixedly connected with the inner shell by forming a plurality of solder joints through spot welding, and fixing feet extend downward on both the left and right sides of the outer shell.

[0008] As a preferred solution, the base includes a front part and a rear part, the tongue plate integrally extends forward from the front end face of the front part, the rear part integrally extends backward from the rear end face of the front part, the height of the rear part is lower than that of the front part, the inner shell is sealingly sleeved and fixed with the front part, and the outer shell covers the rear part and the front end of the inner shell.

[0009] As a preferred solution, a dispensing groove penetrating up and down is formed between the front part and the rear part, the upper row terminals and the lower row terminals both extend forward and backward and pass through the dispensing groove, and a sealing member is formed by dispensing in the dispensing groove, and the sealing member seals the gaps between the terminals and the base and between the inner shell and the base.

[0010] As a preferred solution, an EMI sleeve is sleeved on the base, the EMI sleeve covers the front end face and the outer peripheral side face of the front part, and the EMI sleeve is located in the inner shell and is fixedly welded with the inner shell through spot welding.

[0011] As a preferred solution, the welding portions of the upper row terminals and the welding portions of the lower row terminals are both located on the bottom surface of the rear part and are respectively arranged in two rows front and back, and the welding portions of the upper row terminals and the welding portions of the lower row terminals both extend horizontally and are arranged in a left-right staggered manner.

[0012] As a preferred solution, riveting grooves are recessed on both the left and right sides of the bottom surface of the rear part, riveting pieces extend inward and bend on both the left and right sides of the rear end of the outer shell, and the riveting pieces are riveted and fixed together with the riveting grooves, so that the outer shell is firmly combined with the insulating body.

[0013] As a preferred solution, both the upper and lower sides of the inner shell are concave-convex outward to form convex bumps on the inner wall of the inner shell.

[0014] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0015] By designing the front end of the tongue plate to extend forward out of the shielding shell, the length of the shielding shell is shortened, thereby saving the installation space of the entire Type-C connector and meeting the needs of miniaturization of the equipment. At the same time, the shielding shell is composed of an inner shell and an outer shell. The inner shell is a seamless stretch shell, and a waterproof ring is provided at the front end of the inner shell to achieve excellent waterproof properties to meet the needs of use.

[0016] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram from another angle of a preferred embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram from another angle of the preferred embodiment of the present utility model;

[0020] Figure 4 It is a cross-sectional view of a preferred embodiment of the present utility model.

[0021] Description of the accompanying drawings:

[0022] 10. Insulation body 11. Base

[0023] 111, front 112, rear

[0024] 12. Tongue plate 13. Seal

[0025] 101, dispensing slot 102, riveting slot

[0026] 20. Upper row terminals 21. Contact portion

[0027] 22, welding part 30, lower row terminals

[0028] 31. Contact portion 32. Welding portion

[0029] 40, middle clip 50, shielding shell

[0030] 51. Inner shell 511, retaining ring

[0031] 512, convex hull 52, outer shell

[0032] 521, front top plate 522, rear top plate

[0033] 523, rear panel 524, side panel

[0034] 53, waterproof ring 54, EMI housing

[0035] 501, solder joint 502, fixing feet

[0036] 503, riveting piece 504, slot hole. Detailed implementation manner

[0037] Please refer to Figures 1 to 4 As shown, it shows the specific structure of the preferred embodiment of the present utility model, including an insulating body 10, an upper row of terminals 20, a lower row of terminals 30, a middle clip 40 and a shielding housing 50.

[0038] The insulating body 10 includes a base 11 and a tongue plate 12 extending forward from the base 11. The base 11 includes a front part 111 and a rear part 112. The tongue plate 12 extends forward integrally from the front end face of the front part 111, and the rear part 112 extends backward integrally from the rear end face of the front part 111. The height of the rear part 112 is lower than that of the front part 111. A dispensing groove 101 penetrating up and down is formed between the front part 111 and the rear part 112, and a seal 13 is formed by dispensing in the dispensing groove 101. Riveting grooves 102 are recessed on both left and right sides of the bottom surface of the rear part 112.

[0039] The upper row of terminals 20, the lower row of terminals 30 and the middle clip 40 are all fixed in the insulating body 10 by inlay molding. The upper row of terminals 20 and the lower row of terminals 30 are arranged separately up and down. The contact parts 21 of the upper row of terminals 20 and the contact parts 31 of the lower row of terminals 30 are respectively exposed on the upper and lower surfaces of the tongue plate 12. The welding parts 22 of the upper row of terminals 20 and the welding parts 32 of the lower row of terminals 30 both extend out of the base 11. The middle clip 40 is located between the upper row of terminals 20 and the lower row of terminals 30. In this embodiment, the number of terminals of the upper row of terminals 20 and the lower row of terminals 30 is 12PIN each, so as to form a 24PIN combined structure, enabling fast transmission speed and reaching the USB4.0 rate. And, the welding parts 22 of the upper row of terminals 20 and the welding parts 32 of the lower row of terminals 30 are both located on the bottom surface of the rear part 112 and are respectively arranged in two rows front and back. The welding parts 22 of the upper row of terminals 20 and the welding parts 32 of the lower row of terminals 30 both extend horizontally and are arranged in a left-right staggered manner, so as to perform surface mount welding with an external circuit board. In addition, the upper row of terminals 20 and the lower row of terminals 30 both extend forward and backward and pass through the dispensing groove 101, and the seal 13 seals the gap between each terminal and the base 11 to form a better waterproof and sealing effect.

[0040] The shielding housing 50 is wrapped around the insulation body 10; the front end of the tongue plate 12 extends forward out of the shielding housing 50. Specifically, the shielding housing 50 includes an inner housing 51 and an outer housing 52; the inner housing 51 is a seamless stretched shell, the rear end of the inner housing 51 is sealingly sleeved and connected to the base 11, and a waterproof ring 53 is sleeved on the front end of the inner housing 51; the outer housing 52 is a stamping shell, the outer housing 52 is wrapped around the outer side of the inner housing 51 and is located behind the waterproof ring 53, and the outer housing 52 is fixedly connected to the inner housing 51 by forming a plurality of solder joints 501 through spot welding. Moreover, both the left and right sides of the outer housing 52 extend downward to form fixing feet 502 for insertion and welding fixation with the circuit board. In this embodiment, the inner housing 51 is sealingly sleeved and fixed to the front portion 111, and the outer housing 52 wraps the rear portion 112 and the front end of the inner housing 51. The seal 13 seals the gap between the inner housing 51 and the base 11 to form a better waterproof sealing effect. The front end edge of the inner housing 51 extends radially outward to form a retaining ring 511, and the retaining ring 511 is located on the front side of the waterproof ring 53 to prevent the waterproof ring 53 from slipping out of the inner housing 51 forward; in addition, both the upper and lower sides of the inner housing 511 are concave outward and convex inward to form convex bumps 512 on the inner wall of the inner housing 51 to increase the insertion and extraction force during product use. Moreover, two convex bumps 512 are formed on both the upper side inner wall and the lower side inner wall of the inner housing 51, and the two convex bumps 512 are arranged at intervals left and right, and the insertion and extraction force is better. The left and right sides of the rear end of the outer housing 52 are bent inward and extended to form riveting pieces 503, and the riveting pieces 503 are riveted and fixed together with the riveting grooves 102, so that the outer housing 52 is firmly combined with the insulation body 10. In addition, the outer housing 52 includes a front top plate 521, a rear top plate 522, a rear plate 523, and two side plates 524 that are integrally formed and bent and connected. The front top plate 521 is located directly above the inner housing 51 and is fixed to the inner housing 51 by spot welding. The rear top plate 522 is displaced downward relative to the front top plate 521 and is located directly above the rear portion 112. The rear plate 523 is located behind the rear portion 112, and the two side plates 524 are respectively located outside the left and right sides of the insulation body 10. And, a slot hole 504 is opened on the rear side of the rear top plate 522, and the slot hole 504 is located directly above the welding portion 22 of the upper row of terminals 20, so that the operator can observe through the slot hole 504 to align the welding portion 22 of the upper row of terminals 20 with the pads on the external circuit board, which brings convenience to welding.

[0041] In addition, an EMI sleeve 54 is sleeved on the base 11, the EMI sleeve 54 wraps the front end face and the outer peripheral side face of the front portion 111, and the EMI sleeve 54 is located in the inner housing 51 and is welded and fixed to the inner housing 51 by spot welding.

[0042] The manufacturing and assembly process of this embodiment is described in detail as follows:

[0043] First, the insulating body 10 is formed by injection molding, so that the upper row of terminals 20, the lower row of terminals 30 and the middle clip 40 are all integrally molded and fixed on the insulating body 10. Then, the EMI housing 54 is sleeved on the front part 111 of the base 11 from front to back. Next, the inner housing 51 is sleeved on the outside of the insulating body 10 from front to back, so that the rear end of the inner housing 51 covers the EMI housing 54. Then, the rear end of the inner housing 51 is spot-welded and fixed to the EMI housing 54. Next, glue is applied in the glue application groove 101 to form a seal 13, so that the seal 13 seals the gaps between the respective terminals and the base 11 and the gap between the inner housing 51 and the base 11. Then, the outer housing 52 is covered on the outside of the inner housing 51, and the outer housing 52 is spot-welded and fixed to the inner housing 51, and the waterproof ring 53 is sleeved on the front end of the inner housing 51.

[0044] In use, the product is placed on the circuit board, and each fixing foot 502 is inserted into the fixing hole on the circuit board and welded and fixed. At the same time, the welding parts 22 of the upper row of terminals 20 and the welding parts 32 of the lower row of terminals 30 are respectively abutted against the corresponding pads on the circuit board and welded together.

[0045] The design focus of the present utility model lies in: by designing the front end of the tongue plate to protrude forward outside the shielding housing, the length of the shielding housing is shortened, thereby saving the installation space of the entire Type-C connector and meeting the requirements of equipment miniaturization. At the same time, the shielding housing is composed of an inner housing and an outer housing. The inner housing is a seamless stretched shell, and a waterproof ring is sleeved on the front end of the inner housing to achieve good waterproof performance and meet the usage requirements.

[0046] The above are only the preferred embodiments of the present utility model, and do not impose any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A waterproof patch-type Type-C connector, comprising an insulating body, upper row terminals, lower row terminals, a middle clip, and a shielding shell; the insulating body includes a base and a tongue plate extending forward from the base; the upper row terminals, lower row terminals, and middle clip are all injection-molded and fixed in the insulating body, the upper row terminals and the lower row terminals are arranged separately up and down, the contact parts of the upper row terminals and the contact parts of the lower row terminals are respectively exposed on the upper and lower surfaces of the tongue plate, the welding parts of the upper row terminals and the welding parts of the lower row terminals both extend out of the base, and the middle clip is located between the upper row terminals and the lower row terminals; the shielding shell is covered outside the insulating body; characterized in that: The front end of the tongue plate extends forward out of the shielding housing, and the shielding housing includes an inner housing and an outer housing; the inner housing is a seamless stretched shell, the rear end of the inner housing is sealingly sleeved and connected to the base, and a waterproof ring is sleeved on the front end of the inner housing; the outer housing is a stamping shell, the outer housing is wrapped outside the inner housing and is located behind the waterproof ring, and the outer housing is fixedly connected to the inner housing by forming a plurality of solder joints through spot welding, and fixing feet extend downward from both the left and right sides of the outer housing.

2. The waterproof patch type - C connector according to claim 1, wherein: The base includes a front part and a rear part. The tongue plate integrally extends forward from the front end face of the front part, and the rear part integrally extends backward from the rear end face of the front part. The height of the rear part is lower than that of the front part. The inner housing is sealingly sleeved and fixed to the front part, and the outer housing wraps the rear part and the front end of the inner housing.

3. The waterproof patch type-C connector according to claim 2, wherein: A glue dispensing groove penetrating up and down is formed between the front part and the rear part. The upper row of terminals and the lower row of terminals both extend forward and backward and pass through the glue dispensing groove. A sealing member is formed by dispensing glue in the glue dispensing groove, and the sealing member seals the gaps between the terminals and the base and between the inner housing and the base.

4. The waterproof patch-type Type-C connector according to claim 2, wherein: An EMI sleeve is sleeved on the base. The EMI sleeve wraps the front end face and the outer peripheral side face of the front part, and the EMI sleeve is located in the inner housing and is fixedly welded to the inner housing by spot welding.

5. The waterproof patch type-C connector according to claim 2, characterized in that: The welding parts of the upper row of terminals and the welding parts of the lower row of terminals are both located on the bottom surface of the rear part and are respectively arranged in two rows, front and back. The welding parts of the upper row of terminals and the welding parts of the lower row of terminals both extend horizontally and are arranged in a left-right offset manner.

6. The waterproof patch-type Type-C connector according to claim 2, wherein: Riveting grooves are recessed on both the left and right sides of the bottom surface of the rear part. Riveting pieces extend inward and bend from both the left and right sides of the rear end of the outer housing, and the riveting pieces are riveted and fixed together with the riveting grooves.

7. The waterproof patch-type Type-C connector according to claim 1, wherein: Convex bumps are formed on the inner wall of the inner housing by concave-convex structures on both the upper and lower sides of the inner housing.

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