Type-C high-speed connector

Abstract

The utility model discloses a Type-C high-speed connector. The Type-C high-speed connector comprises an insulating body, a terminal group and a shielding shell, the insulating body is provided with an insertion cavity; the terminal group is arranged in the insulating body, a signal terminal is arranged in the terminal group, the signal terminal comprises a contact part, an extension part and a welding part which are integrally formed and connected in sequence, the contact part is suspended in the inserting cavity, and the welding part extends out of the insulating body; the shielding shell is coated outside the insulating body; concave positions and convex hulls are formed on the two side faces of the extending part in a stamping mode, and the convex hulls are located on the sides of the corresponding concave positions and arranged front and back. The concave positions and the convex hulls are formed on the two side faces of the extending part in a stamping mode, the convex hulls are located on the sides of the corresponding concave positions and arranged front and back, high frequency and crosstalk can be adjusted through the convex hulls and the concave positions, the better high-frequency characteristic and the better anti-crosstalk function are achieved, the signal transmission rate is increased, and the signal transmission efficiency is improved. And the signal transmission is more stable and reliable, and the product has better use performance and is worthy of popularization and use.

Description

Technical Field

[0001] The utility model relates to the technology of connectors, in particular to a Type-C high-speed connector. Background Art

[0002] USB Type-C is a USB interface form factor standard, which has a smaller volume than both Type-A and Type-B. It can be used as an interface type for both PCs (host devices) and external devices (slave devices, such as mobile phones). 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] At present, the main structure of a Type-C plug connector includes an insulating body, a terminal group, and a shielding shell; the insulating body has an insertion cavity with an opening facing forward; the terminal group is arranged inside the insulating body, and the terminal group has signal terminals, and the signal terminals include a contact part, an extension part, and a welding part that are integrally formed and connected in sequence. The contact part hangs in the insertion cavity, and the welding part extends out of the insulating body; the shielding shell is wrapped outside the insulating body.

[0004] In the prior art, both sides of the extension part of the signal terminal are flat surfaces, which cannot adjust the high frequency and crosstalk of signal transmission, resulting in poor high-frequency characteristics of the product and poor crosstalk prevention function, so that the signal transmission rate is slow, and the transmission is unstable and unreliable. Therefore, it is necessary to improve the current Type-C plug 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 Type-C high-speed connector, which can effectively solve the problems of slow signal transmission rate, unstable and unreliable transmission existing in the existing Type-C plug connector.

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

[0007] A Type-C high-speed connector includes an insulating body, a terminal group, and a shielding shell; the insulating body has an insertion cavity with an opening facing forward; the terminal group is arranged inside the insulating body, and the terminal group has signal terminals, and the signal terminals include a contact part, an extension part, and a welding part that are integrally formed and connected in sequence. The contact part hangs in the insertion cavity, and the welding part extends out of the insulating body; the shielding shell is wrapped outside the insulating body; concave positions and convex protrusions are formed on both side surfaces of the extension part by stamping, and the convex protrusions are located beside the corresponding concave positions and are arranged front and back.

[0008] As a preferred solution, the concave positions and the convex protrusions are located at the middle position of the rear end of the extension part.

[0009] As a preferred solution, a plurality of terminal slots are provided in the insulating body, and each terminal slot communicates between the rear end of the insulating body and the insertion cavity. The signal terminal is inserted into the corresponding terminal slot, and the convex portion is in close fit with the inner wall of the corresponding terminal slot to better adjust high frequency and crosstalk, so as to achieve better high-frequency characteristics and crosstalk prevention function.

[0010] As a preferred solution, a fixing groove is recessed at the rear end of the insulating body, and an insulating block is fitted in the fixing groove. The terminal group is fixed to the insulating block to better assemble the terminal group as a whole.

[0011] As a preferred solution, a hook member is fixed on the insulating block, and the hook member extends into the insertion cavity so as to be locked with the mating connector.

[0012] As a preferred solution, the signal terminals are two groups arranged symmetrically left and right, and each group of signal terminals is composed of two signal terminals arranged symmetrically up and down to realize the transmission of multi-channel signals.

[0013] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0014] By stamping concave positions and convex portions on both side surfaces of the extension portion, the convex portions are arranged side by side in the front and rear beside the corresponding concave positions. The convex portions and the concave positions can be used to adjust high frequency and crosstalk, so as to achieve better high-frequency characteristics and crosstalk prevention function, which is beneficial to improving the signal transmission rate, and the signal transmission is more stable and reliable, and the product performance is better, and it is worthy of popularization and use.

[0015] To more clearly illustrate the structural features and functions of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an assembled three-dimensional schematic diagram of a preferred embodiment of the present utility model;

[0017] Figure 2 is an assembled three-dimensional schematic diagram of another angle of a preferred embodiment of the present utility model;

[0018] Figure 3 is an exploded view of a preferred embodiment of the present utility model;

[0019] Figure 4 is an exploded view of another angle of a preferred embodiment of the present utility model;

[0020] Figure 5 is a cross-sectional view of a preferred embodiment of the present utility model;

[0021] Figure 6 is a partial assembly drawing of a preferred embodiment of the present utility model;

[0022] Figure 7 is an enlarged schematic view of a signal terminal in a preferred embodiment of the present utility model.

[0023] Explanation of the drawing reference numerals:

[0024] 10. Insulating body 11. Insertion cavity

[0025] 12. Terminal slot 13. Fixing slot

[0026] 20. Terminal group 21. Signal terminal

[0027] 211. Contact part 212. Extension part

[0028] 213. Welding part 201. Concave position

[0029] 202. Convex boss 30. Shielding shell

[0030] 40. Insulating block 50. Hook member

[0031] 60. EMC elastic sheet. Detailed implementation manners

[0032] Please refer to Figures 1 to 7 as shown, which shows the specific structure of a preferred embodiment of the present utility model, including an insulating body 10, a terminal group 20 and a shielding shell 30.

[0033] The insulating body 10 has an insertion cavity 11 with an opening facing forward; in this embodiment, a plurality of terminal slots 12 are formed in the insulating body 10, and each terminal slot 12 communicates between the rear end and the insertion cavity 11 of the insulating body 10. And, a fixing slot 13 is recessed at the rear end of the insulating body 10, an insulating block 40 is embedded in the fixing slot 13, and a hook member 50 is fixed on the insulating block 40, and the hook member 50 extends into the insertion cavity 11 for hooking with a mating connector. And, EMC elastic sheets 60 are provided on both the upper and lower surfaces of the front end of the insulating body 10, and the EMC elastic sheets 60 extend into the front end opening of the insertion cavity 11 to achieve the EMC effect, which is beneficial to improving the signal transmission rate.

[0034] The terminal group 20 is disposed within the insulating body 10. The terminal group 20 includes signal terminals 21. Each signal terminal 21 includes a contact portion 211, an extension portion 212, and a welding portion 213 that are integrally formed and connected in sequence. The contact portion 211 is in the shape of a bent elastic sheet and is suspended in the insertion cavity 11. Concave positions 201 and convex protrusions 202 are formed on both side surfaces of the extension portion 212 by stamping. The convex protrusions 202 are located beside the corresponding concave positions 201 and are arranged front and back. The welding portion 213 extends outside the insulating body 10. In this embodiment, the terminal group 20 is fixed to the insulating block 40 to better assemble the terminal group 20 as a whole. The concave positions 201 and the convex protrusions 202 are located at the middle position near the rear end of the extension portion 212. Moreover, the signal terminals 21 are inserted into the corresponding terminal slots 12, and the convex protrusions 202 are in close fit with the inner walls of the corresponding terminal slots 12 to better adjust high frequency and crosstalk, achieving better high-frequency characteristics and crosstalk prevention functions. In addition, the signal terminals 21 are provided in two groups that are symmetric left and right, and each group of signal terminals 21 is composed of two signal terminals 21 that are symmetric up and down to achieve the transmission of multi-channel signals.

[0035] The shielding case 30 is covered outside the insulating body 10. In this embodiment, the shielding case 30 is a drawn iron case.

[0036] The assembly process of this embodiment is described in detail as follows:

[0037] First, the terminal group 20 and the hook member 50 are both fixed to the insulating block 40 to form a semi-finished product. Then, the semi-finished product is assembled into the insulating body 10 from the back to the front, so that each terminal is inserted into the corresponding terminal slot 12 and fixed. At the same time, the insulating block 40 is embedded and fixed in the fixing slot 13. Then, the EMC elastic sheets 60 are assembled on the upper and lower surfaces at the front end of the insulating body 10. Finally, the shielding case 30 is sleeved outside the insulating body 10. After testing and use, the high-frequency characteristics of this product have been greatly improved. At the same time, the crosstalk prevention effect is better, the signal transmission is faster, and it is also more stable and reliable.

[0038] The design focus of the present utility model lies in: by forming concave positions and convex protrusions on both side surfaces of the extension portion by stamping, the convex protrusions are located beside the corresponding concave positions and are arranged front and back. The convex protrusions and the concave positions can be used to adjust high frequency and crosstalk, achieving better high-frequency characteristics and crosstalk prevention functions, which is beneficial to improving the signal transmission rate, and the signal transmission is more stable and reliable, and the product performance is better, worthy of popularization and use.

[0039] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes, and decorations 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 Type-C high-speed connector, comprising an insulating body, a terminal group and a shielding shell; the insulating body has an insertion cavity with an opening facing forward; the terminal group is arranged in the insulating body, and the terminal group has a signal terminal, the signal terminal comprises a contact portion, an extension portion and a welding portion which are sequentially integrally connected, the contact portion is suspended in the insertion cavity, and the welding portion extends out of the insulating body; the shielding shell is covered on the insulating body; characterized in that: Both sides of the extension portion are formed with concave positions and convex humps by stamping, and the convex humps are located beside the corresponding concave positions and arranged front to back.

2. The Type-C high-speed connector according to claim 1, characterized in that: The concave portion and the convex portion are located at the middle position of the extension portion near the rear end.

3. The Type-C high-speed connector according to claim 1, characterized in that: The insulating body is provided with a plurality of terminal slots, each of which is connected between the rear end of the insulating body and the insertion cavity. The signal terminal is inserted into the corresponding terminal slot, and the convex bump is tightly matched with the inner wall of the corresponding terminal slot.

4. The Type-C high-speed connector according to claim 1, characterized in that: A fixing groove is recessed at the rear end of the insulating body, an insulating block is embedded in the fixing groove, and the terminal group is fixed on the insulating block.

5. The Type-C high-speed connector according to claim 4, characterized in that: A hook piece is fixed on the insulating block and extends into the insertion cavity.

6. The Type-C high-speed connector according to claim 1, characterized in that: The signal terminals are arranged in two groups symmetrically on the left and right, and each group of signal terminals is composed of two signal terminals symmetrically arranged on the top and bottom.

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