Improved Type-C connector

Abstract

The utility model discloses an improved Type-C connector. The improved Type-C connector comprises an insulating body, a terminal group, a clamping hook piece and a shielding shell, the insulating body comprises a base and a tongue plate which extends forwards from the base; the lingual plate comprises a plastic core body and a ceramic sleeve shell, the plastic core body and the base are integrally formed and connected, the ceramic sleeve shell is sleeved outside the plastic core body and is fixed together with the plastic core body in an embedding and forming manner, and the upper surface and the lower surface of the ceramic sleeve shell are respectively provided with a slotted hole for exposing each contact part of the terminal group. The lingual plate is designed to be composed of the plastic core body and the ceramic sleeve shell, the plastic core body is sleeved with the ceramic sleeve shell in cooperation with the ceramic sleeve shell, and the ceramic sleeve shell and the plastic core body are fixed together in an embedded forming mode, when the connector is used, the ceramic sleeve shell and an external connector are inserted in a matched mode, a traditional plastic material is replaced, abrasion resistance is effectively improved, and after long-term insertion, the lingual plate is little damaged, and the service life of the connector is prolonged. Normal use of the product is guaranteed, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model relates to the technology of the field of electrical connectors, and in particular to an improved Type-C connector. Background Art

[0002] Type-C is a USB interface standard with a smaller size than Type-A and Type-B. It can be used for both PCs (master devices) and external devices (slave devices, such as mobile phones). Type-C has 4 pairs of TX / RX breakouts, 2 pairs of USBD+ / D-, a pair of SBU, 2 CCs, as well as 4 VBUS and 4 ground lines. On October 4, 2022, local time, the European Parliament passed a bill with an overwhelming majority. The bill stipulates that from the end of 2024, all new portable smart devices must use Type-C connectors; from 2026, Type-C connectors will also become the standard interface for laptop chargers. On October 25, 2022, Apple confirmed that it would comply with EU requirements and that all smartphones would use Type-C connectors from 2024.

[0003] The current Type-C connector mainly consists of an insulating body, a terminal block, a hook member, and a shielding shell. The insulating body includes a base and a tongue extending forward from the base. The terminal block and the hook member are both inlaid and fixed with the insulating body. The shielding shell covers the insulating body.

[0004] However, in existing technology, the insulating body of the Type-C connector is entirely made of plastic, which has poor wear resistance. After long-term mating, the tongue plate will be severely damaged, causing the Type-C connector to fail to function properly and shortening its service life. Therefore, it is necessary to improve the current Type-C connector. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies in the prior art, and its main purpose is to provide an improved Type-C connector that can effectively solve the problem that the tongue plate of the existing Type-C connector is easily damaged, resulting in a short service life.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An improved Type-C connector includes an insulating body, a terminal group, a hook member, and a shielding shell; the insulating body includes a base and a tongue plate extending forward from the base; the terminal group and the hook member are both inlay-molded and fixed together with the insulating body; the shielding shell is covered by the insulating body; the tongue plate includes a plastic core and a ceramic shell, the plastic core is integrally formed and connected to the base, the ceramic shell is fitted over the plastic core and inlay-molded and fixed together with the plastic core, and the upper and lower surfaces of the ceramic shell are provided with slots for exposing the various contact portions of the terminal group.

[0008] As a preferred solution, two limit grooves arranged on the left and right sides are provided on the top front side and the bottom front side of the base. Correspondingly, a plurality of limit parts are punched from the outside to the inside on the shielding shell, and the plurality of limit parts are respectively inserted into the corresponding limit grooves from front to back.

[0009] As a preferred solution, the top rear side of the base is provided with two buckle grooves arranged on the left and right, and the top of the base is convexly provided with two positioning parts arranged on the left and right, the two positioning parts are respectively located on the sides of the two buckle grooves, and the top rear side of the shielding shell is provided with two positioning grooves, the two positioning parts are respectively inserted into the two positioning grooves from back to front, and the inner sides of the two positioning grooves are bent and extended to have buckle plates, which are buckled with the buckle grooves.

[0010] As a preferred embodiment, the terminal group includes a first terminal, a second terminal, two third terminals and two fourth terminals; the first terminal and the second terminal are arranged separately on the left and right, and the contact portion of the first terminal and the contact portion of the second terminal are respectively exposed from the upper and lower surfaces of the tongue plate, the two third terminals are arranged symmetrically on the left and right and are respectively located on the outside of the first terminal and the second terminal, and the contact portions of the two third terminals are both exposed from the lower surface of the tongue plate, the two fourth terminals are arranged symmetrically on the left and right and are respectively located on the outside of the two third terminals, and the contact portions of the two fourth terminals are both exposed from the upper surface of the tongue plate.

[0011] As a preferred solution, a connecting rod is integrally formed between the front ends of the contact portions of the two fourth terminals. The connecting rod extends laterally left and right and is inlaid and fixed inside the front end of the plastic core to make the structure of the terminal group more stable and reliable.

[0012] As a preferred solution, the hook parts are symmetrically arranged on the left and right sides, and both hook parts are inlaid and fixed inside the front end of the plastic core. The hook parts of the two hook parts are exposed on the left and right sides of the front end of the ceramic shell respectively. The structure is simple and the material consumption is small.

[0013] As a preferred solution, the hook piece is provided with a front through hole and a rear through hole, which are arranged front to back, have different sizes and shapes, and are both buried in the plastic core, so that the hook piece and the plastic core are more firmly and reliably combined.

[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 tongue plate to be composed of a plastic core and a ceramic shell, and fitting the ceramic shell onto the outside of the plastic core and fixing it together with the plastic core by inlay molding, when in use, the ceramic shell is plugged into the external connector, replacing the traditional plastic material, effectively improving the wear resistance. After long-term plugging, the tongue plate is less damaged, ensuring the normal use of the product and also helping to extend the service life of the product.

[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 This is a schematic diagram of an assembly perspective view of a preferred embodiment of the present utility model;

[0018] Figure 2 This is a schematic three-dimensional assembly diagram of a preferred embodiment of the present invention from another angle;

[0019] Figure 3 This is an exploded view of a preferred embodiment of the present utility model;

[0020] Figure 4 This is a partial assembly diagram of a preferred embodiment of the present utility model;

[0021] Figure 5 This is a partial assembly diagram of a preferred embodiment of the present invention from another angle;

[0022] Figure 6 It is a cross-sectional view of a preferred embodiment of the present utility model;

[0023] Figure 7 It is a schematic diagram of the state of the manufacturing process of the preferred embodiment of the present invention.

[0024] Description of the accompanying drawings:

[0025] 10. Insulation body 11. Base

[0026] 12. Tongue plate 121. Plastic core

[0027] 122, ceramic housing 101, slot

[0028] 102, limit slot 103, buckle slot

[0029] 104, positioning portion 20, terminal group

[0030] 21. First terminal 211. Contact portion

[0031] 212, fixing part 213, welding part

[0032] 22. Second terminal 221. Contact portion

[0033] 222, fixing part 223, welding part

[0034] 23. Third terminal 231, contact portion

[0035] 232, fixing part 233, welding part

[0036] 24. Fourth terminal 241. Contact portion

[0037] 242, fixed part 243, welding part

[0038] 25. Connecting rod 201, concave-convex texture structure

[0039] 30. Hook piece 31. Hook part

[0040] 32, front through hole 33, rear through hole

[0041] 40. Shielding shell 41. Limiting part

[0042] 42. Positioning slot 43. Buckle

[0043] 44. Front fixed foot 45. Rear fixed foot

[0044] 51. First material strip 52. Second material strip DETAILED DESCRIPTION

[0045] Please refer to Figures 1 to 7 , which shows the specific structure of a preferred embodiment of the present invention, including an insulating body 10 , a terminal set 20 , a hook member 30 and a shielding shell 40 .

[0046] The insulating body 10 includes a base 11 and a tongue plate 12 extending forward from the base 11; the tongue plate 12 includes a plastic core 121 and a ceramic shell 122. The plastic core 121 is integrally formed and connected to the base 11. The ceramic shell 122 is fitted over the plastic core 121 and fixed to the plastic core 121 by inlay molding. The upper and lower surfaces of the ceramic shell 122 are provided with slots 101 for exposing the contact portions of the terminal group 20. The ceramic shell 122 is used to increase the wear resistance of the connector during insertion, making the tongue plate 12 more wear-resistant. In this embodiment, the top front side and the bottom front side of the base 11 are provided with two left-right arranged limit grooves 102, the top rear side of the base 11 is provided with two left-right arranged buckle grooves 103, and the top of the base 11 is provided with two left-right arranged positioning portions 104, the two positioning portions 104 are respectively located on the sides of the two buckle grooves 103.

[0047] The terminal assembly 20 and the hook member 30 are both fixed together with the insulating body 10 by insert molding; specifically:

[0048] The terminal assembly 20 includes a first terminal 21, a second terminal 22, two third terminals 23, and two fourth terminals 24. The first terminal 21 and the second terminal 22 are arranged separately on the left and right sides, and the contact portion 211 of the first terminal 21 and the contact portion 221 of the second terminal 22 are respectively exposed on the upper and lower surfaces of the tongue plate 12. The two third terminals 23 are arranged symmetrically and are respectively located on the outside of the first terminal 21 and the second terminal 22. The contact portions 231 of the two third terminals 23 are both exposed on the lower surface of the tongue plate 12. The two fourth terminals 24 are arranged symmetrically and are respectively located on the outside of the two third terminals 23. The contact portions 241 of the two fourth terminals 24 are both exposed on the upper surface of the tongue plate 12. In this embodiment, a connecting rod 25 is integrally formed between the front ends of the contact portions 241 of the two fourth terminals 24. The connecting rod 25 extends horizontally to the left and right and is fixed to the front end of the plastic core 121 by inlay molding, making the structure stable and reliable. Furthermore, the outer surfaces of the fixing portion 212 of the first terminal 21, the outer surfaces of the fixing portion 222 of the second terminal 22, the outer surfaces of the fixing portion 232 of the third terminal 23, and the outer surfaces of the fixing portion 242 of the fourth terminal 24 are all formed with a concave-convex texture structure 201. The concave-convex texture structure 201 is combined with the insulating body 10 to make the connection between the terminal assembly 20 and the insulating body 10 more secure and reliable. In addition, the welding portion 213 of the first terminal 21, the welding portion 223 of the second terminal 22, the welding portion 233 of the third terminal 23, and the welding portion 243 of the fourth terminal 24 are arranged side by side and extend horizontally and rearwardly outside the base 11, and each welding portion is integrally formed and connected to a first material strip 51.

[0049] The hook members 30 are symmetrically arranged on the left and right sides, each of which is inlaid and fixed within the front end of the plastic core 121. The hook portions 31 of the two hook members 30 are exposed on the left and right sides of the front end of the ceramic shell 12. The hook members 30 are formed with a front through hole 32 and a rear through hole 33. The front through holes 32 and rear through holes 33 are arranged in a front-to-back manner and have different sizes and shapes. The front through holes 32 and rear through holes 33 are both embedded in the plastic core 121, ensuring a more secure connection between the hook members 30 and the plastic core 121. In addition, the front ends of the two hook members 30 are integrally connected to a second material strip 52.

[0050] The shielding shell 40 is wrapped around the insulating body 10. In this embodiment, the shielding shell 40 is a stamped iron shell. A plurality of limiting portions 41 are punched from the outside to the inside of the shielding shell 40. The limiting portions 41 snap into corresponding limiting grooves 102 from the front to the back to prevent the shielding shell 40 from moving backward relative to the insulating body 10. In addition, two positioning grooves 42 are formed on the top rear side of the shielding shell 40. The two positioning portions 104 snap into the two positioning grooves 42 from the back to the front to prevent the shielding shell 40 from shaking left and right relative to the insulating body 10. The inner sides of the two positioning grooves 42 are bent and extended to form buckles 43. The buckles 43 snap into the buckle grooves 103 to prevent the shielding shell 40 from moving forward relative to the insulating body 10. This makes the combination of the shielding shell 40 and the insulating body 10 more stable and reliable. In addition, front fixing feet 44 and rear fixing feet 45 are punched out and extended from both the left and right sides of the shielding shell 40. The front fixing feet 44 and rear fixing feet 45 are arranged in a front-to-back manner and extend vertically downward to ensure stable installation with the external circuit board.

[0051] The production process of this embodiment is described in detail as follows:

[0052] First, the terminal group 20 and the hook member 30 are formed by stamping, the terminal group 20 is connected to the first material strip 51, and the hook member 30 is connected to the second material strip 52, and a ceramic shell 122 is pre-made. The ceramic shell 122 is fitted over the terminal group 20 and the hook member 30. Then, the assembled terminal group 20, the hook member 30 and the ceramic shell 122 are placed into an injection mold to injection mold the entire insulating body 10. Then, the first material strip 51 and the second material strip 52 are cut off. Finally, the shielding shell 40 is fitted over the insulating body 10 and fixed.

[0053] The design focus of the utility model is that the tongue plate is designed to be composed of a plastic core and a ceramic shell, and the ceramic shell is fitted over the plastic core and fixed together with the plastic core by inlay molding. When in use, the ceramic shell is plugged into the external connector, replacing the traditional plastic material, effectively improving the wear resistance. After long-term plugging, the tongue plate is less damaged, ensuring the normal use of the product and also helping to extend the service life of the product.

[0054] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An improved Type-C connector, comprising an insulating body, a terminal assembly, a hook member, and a shielding shell; the insulating body comprising a base and a tongue extending forward from the base; the terminal assembly and the hook member are both inlay-molded and fixed to the insulating body; the shielding shell is encased around the insulating body; and characterized in that: The tongue plate includes a plastic core and a ceramic shell. The plastic core is integrally formed with the base, and the ceramic shell is sleeved on the plastic core and fixed together with the plastic core by inlay molding. The upper and lower surfaces of the ceramic shell are provided with slots for exposing the various contact parts of the terminal group.

2. The improved Type-C connector according to claim 1, wherein: The top front side and the bottom front side of the base are both provided with two limit grooves arranged left and right. Correspondingly, a plurality of limit parts are punched from the outside to the inside on the shielding shell, and the plurality of limit parts are respectively inserted into the corresponding limit grooves from front to back.

3. The improved Type-C connector according to claim 1, wherein: The top rear side of the base is provided with two buckle grooves arranged on the left and right, and the top of the base is convexly provided with two positioning parts arranged on the left and right, the two positioning parts are respectively located on the sides of the two buckle grooves, and the top rear side of the shielding shell is provided with two positioning grooves, the two positioning parts are respectively inserted into the two positioning grooves from back to front, and the inner sides of the two positioning grooves are bent and extended to have buckle plates, which are buckled with the buckle grooves.

4. The improved Type-C connector according to claim 1, wherein: The terminal group includes a first terminal, a second terminal, two third terminals and two fourth terminals; the first terminal and the second terminal are arranged separately on the left and right, the contact portion of the first terminal and the contact portion of the second terminal are exposed from the upper and lower surfaces of the tongue plate respectively, the two third terminals are arranged symmetrically on the left and right and are respectively located on the outside of the first terminal and the second terminal, the contact portions of the two third terminals are both exposed from the lower surface of the tongue plate, the two fourth terminals are arranged symmetrically on the left and right and are respectively located on the outside of the two third terminals, and the contact portions of the two fourth terminals are both exposed from the upper surface of the tongue plate.

5. The improved Type-C connector according to claim 4, characterized in that: A connecting rod is integrally formed between the front ends of the contact portions of the two fourth terminals and is extended laterally left and right and is fixed inside the front end of the plastic core body by inlay molding.

6. The improved Type-C connector according to claim 1, wherein: The two hook members are symmetrically arranged on the left and right sides, and are both inlaid and fixed inside the front end of the plastic core. The hook parts of the two hook members are exposed on the left and right sides of the front end of the ceramic shell respectively.

7. The improved Type-C connector according to claim 6, characterized in that: The hook piece is provided with a front through hole and a rear through hole, which are arranged front to back and have different sizes and shapes. Both the front through hole and the rear through hole are buried in the plastic core.

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