Improved HDMI high-speed connector

Abstract

The utility model discloses an improved HDMI high-speed connector, which comprises a metal shell, an upper-row terminal group, a lower-row terminal group, a middle clamping piece and a plastic main body, the upper-row terminal group, the middle clamping piece and the lower-row terminal group are combined and installed, then are injection-molded with the plastic main body and are inserted in an inner cavity of the metal shell, and the middle clamping piece is located between the upper-row terminal group and the lower-row terminal group. The upper-row terminal group comprises an upper plastic seat, two pairs of upper high-speed signal terminals and a plurality of upper grounding terminals, the lower-row terminal group comprises a lower plastic seat, two pairs of lower high-speed signal terminals and a plurality of lower grounding terminals, and the inner walls of the two ends of the upper plastic seat and the outer walls of the two ends of the lower plastic seat are mutually buckled through inverted buckle structures; and the upper plastic seat and the lower plastic seat are positioned through a first buckle structure and a second buckle structure which penetrate through the middle clamping piece. According to the utility model, the transmission path and interference of signals are reduced by adjusting the length and spacing of the signal terminals, so that the transmission speed is improved, the injection molding structure of a product is improved, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of board-end connectors, and more particularly to an improved HDMI high-speed connector. Background Art

[0002] The HDMI high-speed connector is a specialized type of connector used to transmit audio and video signals. It primarily delivers high-definition audio and video signals and is suitable for connecting high-definition televisions, projectors, monitors, and other professional audio and video equipment. With the development of society and advancements in technology, traditional HDMI connectors are prone to crosstalk between signal terminals, increasing reflections and loss, reducing signal quality and transmission speeds. The signal transmission speeds required are increasingly difficult to meet, and with advancements in technology, traditional product structures are struggling to meet current production efficiency requirements. Utility Model Content

[0003] The purpose of the present utility model is to overcome the above-mentioned defects in the prior art and provide an improved HDMI high-speed connector that reduces the signal transmission distance and interference by adjusting the length and spacing of the signal terminals, thereby increasing the transmission speed and improving the product injection molding structure.

[0004] To achieve the above-mentioned purpose, the utility model provides an improved HDMI high-speed connector, comprising a metal shell, an upper row terminal group, a lower row terminal group, a middle clip and a plastic body. After the upper row terminal group, the middle clip and the lower row terminal group are assembled and installed, they are injection molded with the plastic body and inserted into the inner cavity of the metal shell. The middle clip is located between the upper row terminal group and the lower row terminal group. The upper row terminal group comprises an upper plastic seat, two pairs of upper high-speed signal terminals and a plurality of upper grounding terminals. Each terminal of the upper row terminal group is injection molded on the upper plastic seat and comprises an upper terminal head section, an upper terminal contact section, an upper terminal vertical section and an upper terminal solder foot section connected in sequence. The ends of the upper terminal head section and the upper terminal solder foot section of each terminal of the upper row terminal group are located on the same horizontal line. The front end length of the upper terminal contact section of each pair of upper high-speed signal terminals is less than the front end length of the upper terminal contact section of each upper grounding terminal. The upper terminal vertical section of each pair of upper high-speed signal terminals is smaller than the front end length of the upper terminal contact section of each upper grounding terminal. The segments are arranged closely together, the lower row terminal group includes a lower plastic seat, two pairs of lower high-speed signal terminals and a plurality of lower grounding terminals, each terminal of the lower row terminal group is injection molded on the lower plastic seat and includes a lower terminal head segment, a lower terminal contact segment, a lower terminal vertical segment, a lower terminal backward extension segment and a lower terminal welding foot segment connected in sequence, the end portions of the lower terminal head segment and the lower terminal welding foot segment of each terminal of the lower row terminal group are located on the same horizontal line, the front end length of the lower terminal contact segment of each pair of lower high-speed signal terminals is shorter than the front end length of the lower terminal contact segment of each lower grounding terminal, the lower terminal vertical segments of each pair of lower high-speed signal terminals are arranged closely together, the inner walls at both ends of the upper plastic seat and the outer walls at both ends of the lower plastic seat are buckled with each other through an inverted structure, and the upper plastic seat and the lower plastic seat are positioned by a first snap structure and a second snap structure passing through the middle clip, thereby achieving fixed installation between the upper plastic seat, the middle clip and the lower plastic seat.

[0005] Preferably, the inverted structure includes fixed inverted buckles located on the inner walls at both ends of the upper plastic seat, which are inclined from bottom to top and protruded laterally, and fixed protrusions located on the outer walls at both ends of the lower plastic seat, which are inclined from top to bottom and protruded laterally and correspond to the shape of the fixed inverted buckles. The upper plastic seat is installed in cooperation with the fixed protrusions of the lower plastic seat through the fixed inverted buckles.

[0006] Preferably, the first snap-fit structure is configured as a plurality of positioning blocks spaced apart on the rear side of the top surface of the lower plastic seat, and the front side of each positioning block is provided with a positioning undercut inclined from top to bottom along its width direction, and a positioning hole corresponding to each positioning block is provided through the rear side of the middle clip, and the lower plastic seat is positioned by the positioning block passing upward through the positioning hole and then contacting the top surface of the middle clip through the bottom surface of the positioning undercut.

[0007] Preferably, the second snap-fit structure is configured as a plurality of positioning posts spaced apart on the front side of the top face of the lower plastic seat, the middle portion of the positioning posts being recessed downward to form positioning grooves, the bottom surface of the upper plastic seat being provided with a plurality of positioning post insertion holes corresponding to the shape of each positioning post, and a plurality of limiting holes being provided through the front side of the middle clip, and when the upper plastic seat is assembled with the lower plastic seat, the positioning posts are inserted into the positioning post insertion holes after passing through the limiting holes to achieve positioning connection.

[0008] Preferably, each terminal of the upper terminal group is staggered with each terminal of the lower terminal group, and the upper terminal welding foot section of each terminal of the upper terminal group and the lower terminal welding foot section of each terminal of the lower terminal group extend from the bottom end of the plastic body respectively.

[0009] Preferably, the two pairs of upper high-speed signal terminals are respectively located on both sides of one of the upper grounding terminals, and one of the pairs of upper high-speed signal terminals is arranged close to the edge; the two pairs of lower high-speed signal terminals are respectively located on both sides of one of the lower grounding terminals and located on the inner side of the close-to-edge lower grounding terminal; an upper terminal base section is provided between the upper terminal contact section and the upper terminal vertical section of each upper high-speed signal terminal; a lower terminal base section is provided between the lower terminal contact section and the lower terminal vertical section of each lower high-speed signal terminal; the widths of the upper terminal base section and the upper terminal vertical section are both smaller than the width of each upper grounding terminal; and the widths of the lower terminal base section, the lower terminal vertical section and the lower terminal rearward extension section are all smaller than the width of each lower grounding terminal.

[0010] Preferably, the middle clip is provided with a plurality of upper terminal grounding springs and a plurality of lower terminal grounding springs, the upper terminal grounding springs are in contact with the upper grounding terminals respectively, and the lower terminal grounding springs are in contact with the lower grounding terminals.

[0011] Preferably, both sides of the middle clip are provided with middle clip shell contact parts extending out of both sides of the plastic body, and the middle clip shell contact parts are in contact with the inner wall of the metal shell.

[0012] Preferably, the rear end edge of the middle clip is bent toward the vertical section of the lower terminal to form a middle clip grounding piece.

[0013] Preferably, positioning welding feet are provided on both sides of the bottom of the metal shell, and elastic pressing pieces protruding inwards are provided on the top and bottom of the metal shell.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The present invention has a simple and compact structure and a reasonable design. By optimizing and adjusting the length and spacing of each pair of upper high-speed signal terminals and each pair of lower high-speed signal terminals, the present invention effectively reduces crosstalk and electromagnetic interference compared to ordinary signal terminals, thereby improving the characteristic impedance of the HDMI connector, reducing the signal transmission distance and interference, and thus improving the transmission speed.

[0016] 2. The upper plastic seat and the lower plastic seat of the utility model are positioned and fastened with each other through the inverted buckle structure, the first buckle structure and the second buckle structure, so that the fixed installation between the upper plastic seat, the middle clip and the lower plastic seat is tighter and more precise. This structural design can improve the injection molding structure of the product, making it more conducive to the production process of the production process, thereby improving production efficiency, shortening the production cycle, and effectively reducing production costs, so that the competitive advantage is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a structural diagram of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0019] Figure 2 This is an exploded schematic diagram of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0020] Figure 3 This is a structural diagram of an upper terminal group, a lower terminal group, and a plastic body of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of an upper terminal group and a lower terminal group of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0022] Figure 5 This is a partially exploded schematic diagram of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the bottom structure of an upper plastic seat of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0024] Figure 7This is a schematic diagram of the top structure of the lower plastic seat of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0025] Figure 8 This is a schematic structural diagram of each terminal of an upper row terminal group of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0026] Figure 9 This is a schematic structural diagram of each terminal of the lower terminal group of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0027] Figure 10 This is a structural schematic diagram of a middle clip of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0028] Figure 11 This is a schematic cross-sectional view of terminal contacts of an improved HDMI high-speed connector provided by an embodiment of the present utility model;

[0029] Figure 12 This is a schematic diagram of the welding of an improved HDMI high-speed connector provided by an embodiment of the utility model. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] Please refer to Figure 1 An embodiment of the present invention provides an improved HDMI high-speed connector, including a metal shell 1, an upper terminal group 2, a lower terminal group 3, a middle clip 4 and a plastic body 5. The following is a detailed description of the various components of this embodiment in conjunction with the accompanying drawings.

[0032] like Figures 1 to 4 As shown, the upper terminal group 2, the middle clip 4, and the lower terminal group 3 can be assembled and assembled, then injection-molded with the plastic body 5 and inserted into the inner cavity of the metal housing 1. The middle clip 4 is located between the upper terminal group 2 and the lower terminal group 3. The middle clip 4 is located between the upper terminal group 2 and the lower terminal group 3, which can block the signals from crosstalk between the upper terminal group 2 and the lower terminal group 3 and can also send bad signals away through the ground.

[0033] In this embodiment, after the upper terminal group 2, the middle clip 4 and the lower terminal group 3 are assembled, the plastic body 5 can be connected to the upper terminal group 2 and the lower terminal group 3 through injection molding, and the metal shell 1 is assembled on the above-mentioned combined injection-molded product after being stamped to become the final product.

[0034] like Figure 5 As shown, the upper row terminal group 2 may include an upper plastic seat 21, two pairs of upper high-speed signal terminals 22 and a plurality of upper grounding terminals 23. Each terminal of the upper row terminal group 2 is injection molded on the upper plastic seat 21 and includes an upper terminal head section 201, an upper terminal contact section 202, an upper terminal vertical section 203 and an upper terminal solder foot section 204 connected in sequence. The ends of the upper terminal head section 201 and the upper terminal solder foot section 204 of each terminal of the upper row terminal group 2 are located on the same horizontal line. The front end length of the upper terminal contact section 202 of each pair of upper high-speed signal terminals 22 is smaller than the front end length of the upper terminal contact section 202 of each upper grounding terminal 23. The upper terminal vertical sections 203 of each pair of upper high-speed signal terminals 22 are arranged close to each other.

[0035] Furthermore, the lower row terminal group 3 may include a lower plastic seat 31, two pairs of lower high-speed signal terminals 32 and a plurality of lower grounding terminals 33. Each terminal of the lower row terminal group 3 is injection molded on the lower plastic seat 31 and includes a lower terminal head section 301, a lower terminal contact section 302, a lower terminal vertical section 303, a lower terminal rearward extension section 304 and a lower terminal solder foot section 305 connected in sequence. The ends of the lower terminal head section 301 and the lower terminal solder foot section 305 of each terminal of the lower row terminal group 3 are located on the same horizontal line. The front end length of the lower terminal contact section 302 of each pair of lower high-speed signal terminals 32 is shorter than the front end length of the lower terminal contact section 302 of each lower grounding terminal 33. The lower terminal vertical sections 303 of each pair of lower high-speed signal terminals 32 are arranged close to each other.

[0036] Specifically, shortening the physical length of the upper high-speed signal terminal 22 and the lower high-speed signal terminal 32 can reduce signal delay during transmission, help improve transmission speed, optimize the spacing between the upper high-speed signal terminal 22 and the lower high-speed signal terminal 32, so that the vertical parts of the two are close to each other to form a tight coupling, which can resist external crosstalk, help achieve better impedance matching, reduce reflections and losses, reduce signal attenuation, and maintain signal clarity and integrity.

[0037] In addition, the length of each upper grounding terminal 23 is greater than that of the upper high-speed signal terminal 22. The longer upper grounding terminal 23 can reduce the interference of electromagnetic or bad signals on the upper high-speed signal terminal 22. The length of each lower grounding terminal 33 is greater than that of the lower high-speed signal terminal 32. The longer lower grounding terminal 33 can reduce the interference of electromagnetic or bad signals on the lower high-speed signal terminal 32.

[0038] like Figure 8 and Figure 9 As shown, the two pairs of upper high-speed signal terminals 22 can be respectively located on both sides of one of the upper ground terminals 23, with one pair of upper high-speed signal terminals 22 arranged close to the edge. The two pairs of lower high-speed signal terminals 32 are respectively arranged on both sides of one of the lower ground terminals 33 and located on the inner side of the close-to-edge lower ground terminal 33. An upper terminal base section 205 is provided between the upper terminal contact section 202 and the upper terminal vertical section 203 of each upper high-speed signal terminal 22. A lower terminal base section 306 is provided between the lower terminal contact section 302 and the lower terminal vertical section 303 of each lower high-speed signal terminal 32. The widths of the upper terminal base section 205 and the upper terminal vertical section 203 are both smaller than the width of each upper ground terminal 23. The widths of the lower terminal base section 306, the lower terminal vertical section 303, and the lower terminal rearward extension section 304 are all smaller than the width of each lower ground terminal 33.

[0039] Among them, the distance and width of different positions of each upper high-speed signal terminal 22 and lower high-speed signal terminal 32 are different, which has a direct impact on signal coupling, interference and characteristic impedance. The above layout structure design can optimize and adjust the high-frequency and high-speed impedance, insertion loss and return loss.

[0040] like Figure 6 and Figure 7 As shown, the inner walls at both ends of the upper plastic seat 21 and the outer walls at both ends of the lower plastic seat 31 can be interlocked through an inverted structure, and the upper plastic seat 21 and the lower plastic seat 31 are positioned by passing through the first snap-fit structure and the second snap-fit structure of the middle clip 4, thereby achieving fixed installation between the upper plastic seat 21, the middle clip 4 and the lower plastic seat 31.

[0041] In this embodiment, the undercut structure can include fixed undercuts 211, which are located on the inner walls of both ends of the upper plastic seat 21 and are inclined from bottom to top and protrude laterally. Fixed protrusions 311, which are located on the outer walls of both ends of the lower plastic seat 31 and are inclined from top to bottom and protrude laterally, are shaped similarly to the fixed undercuts 211. The upper plastic seat 21 is assembled with the fixed protrusions 311 of the lower plastic seat 31 via the fixed undercuts 211. This design makes assembly smooth and simple, and effectively prevents loosening of the connection due to external forces or vibration, thereby improving the stability of the overall structure.

[0042] Specifically, the first snap-fit structure is configured as a plurality of positioning blocks 312 spaced apart on the rear side of the top surface of the lower plastic seat 31. The front side of each positioning block 312 is provided with a positioning undercut 3121 inclined from top to bottom along its width direction. A positioning hole 41 corresponding to each positioning block 312 is provided on the rear side of the middle clip 4. After the lower plastic seat 31 passes upward through the positioning hole 41 through the positioning block 312, the bottom surface of the positioning undercut 3121 contacts the top surface of the middle clip 4 to achieve positioning.

[0043] Among them, the positioning plug 312 can accurately pass through the positioning hole 41 and contact the middle clip 4 during assembly, and the positioning undercut 3121 can ensure its stable contact with the middle clip 4, effectively preventing the lower plastic seat 31 from loosening or falling off.

[0044] Furthermore, the second snap-fit structure is configured as a plurality of positioning posts 314 spaced apart on the front side of the top face of the lower plastic seat 31. The middle portion of the positioning posts 314 is recessed downward to form a positioning groove 3131. The bottom surface of the upper plastic seat 21 is provided with a plurality of positioning post insertion holes 212 corresponding to the shape of each positioning post 314. A plurality of limiting holes 42 are provided through the front side of the middle clip 4. When the upper plastic seat 21 and the lower plastic seat 31 are assembled, the positioning posts 314 pass through the limiting holes 42 and are inserted into the positioning post insertion holes 212 to achieve positioning connection.

[0045] Among them, the positioning groove 3131 provides a more reliable locking mechanism for fixing the upper plastic seat 21 and the lower plastic seat 31, which can form a self-locking effect when docked and inserted, preventing the two from loosening during use, thereby improving the stability and firmness of the overall structure.

[0046] Preferably, each terminal of the upper row terminal group 2 is staggered with each terminal of the lower row terminal group 3, and the upper terminal welding foot section 204 of each terminal of the upper row terminal group 2 and the lower terminal welding foot section 305 of each terminal of the lower row terminal group 3 respectively extend from the bottom end of the plastic body 5.

[0047] like Figure 10 and Figure 11 As shown, the middle clip 4 may be provided with a plurality of upper terminal grounding springs 43 and a plurality of lower terminal grounding springs 44 . The upper terminal grounding springs 43 are in contact with the upper grounding terminals 23 respectively, and the lower terminal grounding springs 44 are in contact with the lower grounding terminals 33 .

[0048] The contact structure of the middle clip 4 of this embodiment adopts a spring design, which is conducive to the stable connection between the middle clip 4 and the corresponding terminal, avoiding the occurrence of poor contact.

[0049] Preferably, both sides of the middle clip 4 may be provided with middle clip shell contact portions 45 extending out of both sides of the plastic body 5 , and the middle clip shell contact portions 45 are in contact with the inner wall of the metal shell 1 .

[0050] Specifically, the rear end edge of the middle clip 4 can be bent toward the direction of the lower terminal vertical section 303 to form a middle clip grounding piece 46 .

[0051] like Figure 12 As shown, the bottom of the metal housing 1 can be provided with positioning solder pins 11 on both sides, and the top and bottom of the metal housing 1 are provided with inwardly protruding elastic pressure pieces 12. Each positioning solder pin 11 can be inserted into a pin hole on the circuit board, and the elastic pressure pieces 12 can strengthen the connection between the high-speed connector and the male plug, preventing them from loosening.

[0052] In summary, the utility model has a simple and compact structure, a reasonable design, good high-speed signal transmission performance and transmission quality, a stable and reliable injection molding structure, and high production efficiency.

[0053] The above embodiments are preferred implementation methods of the present invention, but the implementation methods of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. An improved HDMI high-speed connector, characterized by: It includes a metal shell, an upper row terminal group, a lower row terminal group, a middle clip and a plastic body. After the upper row terminal group, the middle clip and the lower row terminal group are assembled and installed, they are injection molded with the plastic body and inserted into the inner cavity of the metal shell. The middle clip is located between the upper row terminal group and the lower row terminal group. The upper row terminal group includes an upper plastic seat, two pairs of upper high-speed signal terminals and a plurality of upper grounding terminals. Each terminal of the upper row terminal group is injection molded on the upper plastic seat and includes an upper terminal head section, an upper terminal contact section, an upper terminal vertical section and an upper terminal welding foot section connected in sequence. The ends of the upper terminal head section and the upper terminal welding foot section of each terminal of the upper row terminal group are located on the same horizontal line. The front end length of the upper terminal contact section of each pair of upper high-speed signal terminals is less than the front end length of the upper terminal contact section of each upper grounding terminal. The upper terminal vertical sections of each pair of upper high-speed signal terminals are arranged close to each other. It includes a lower plastic seat, two pairs of lower high-speed signal terminals and several lower grounding terminals. Each terminal of the lower row terminal group is injection molded on the lower plastic seat and includes a lower terminal head section, a lower terminal contact section, a lower terminal vertical section, a lower terminal backward extension section and a lower terminal welding foot section connected in sequence. The ends of the lower terminal head section and the lower terminal welding foot section of each terminal of the lower row terminal group are located on the same horizontal line. The front end length of the lower terminal contact section of each pair of lower high-speed signal terminals is shorter than the front end length of the lower terminal contact section of each lower grounding terminal. The lower terminal vertical sections of each pair of lower high-speed signal terminals are arranged closely together. The inner walls at both ends of the upper plastic seat and the outer walls at both ends of the lower plastic seat are mutually buckled by an inverted structure. The upper plastic seat and the lower plastic seat are positioned by a first snap structure and a second snap structure passing through the middle clip, thereby achieving fixed installation between the upper plastic seat, the middle clip and the lower plastic seat.

2. The improved HDMI high-speed connector according to claim 1, wherein: The inverted buckle structure includes fixed inverted buckles located on the inner walls at both ends of the upper plastic seat, which are inclined from bottom to top and protruded laterally, and fixed protrusions located on the outer walls at both ends of the lower plastic seat, which are inclined from top to bottom and protruded laterally and correspond to the shape of the fixed inverted buckles. The upper plastic seat is installed in cooperation with the fixed protrusions of the lower plastic seat through the fixed inverted buckles.

3. The improved HDMI high-speed connector according to claim 1, wherein: The first snap-fit structure is configured as a plurality of positioning blocks spaced apart on the rear side of the top surface of the lower plastic seat. The front side of each positioning block is provided with a positioning undercut inclined from top to bottom along its width direction. A positioning hole corresponding to each positioning block is provided through the rear side of the middle clip. The lower plastic seat is positioned by the positioning block passing upward through the positioning hole and then the bottom surface of the positioning undercut contacts the top surface of the middle clip to achieve positioning.

4. The improved HDMI high-speed connector according to claim 1, wherein: The second snap-fit structure is configured as a plurality of positioning posts spaced apart on the front side of the top face of the lower plastic seat. The middle portion of the positioning posts is recessed downward to form a positioning groove. The bottom surface of the upper plastic seat is provided with a plurality of positioning post insertion holes corresponding to the shape of each positioning post. The front side of the middle clip is provided with a plurality of limiting holes. When the upper plastic seat is assembled with the lower plastic seat, the positioning posts pass through the limiting holes and are inserted into the positioning post insertion holes to achieve positioning connection.

5. The improved HDMI high-speed connector according to claim 1, wherein: Each terminal of the upper terminal group is staggered with each terminal of the lower terminal group, and the upper terminal welding foot section of each terminal of the upper terminal group and the lower terminal welding foot section of each terminal of the lower terminal group extend from the bottom end of the plastic body respectively.

6. The improved HDMI high-speed connector according to claim 1, wherein: Two pairs of upper high-speed signal terminals are respectively located on either side of one of the upper grounding terminals, with one pair of upper high-speed signal terminals arranged close to the edge. Two pairs of lower high-speed signal terminals are respectively located on either side of one of the lower grounding terminals and located on the inner side of the close-to-edge lower grounding terminal. An upper terminal base section is provided between the upper terminal contact section and the upper terminal vertical section of each upper high-speed signal terminal, and a lower terminal base section is provided between the lower terminal contact section and the lower terminal vertical section of each lower high-speed signal terminal. The widths of the upper terminal base section and the upper terminal vertical section are both smaller than the width of each upper grounding terminal, and the widths of the lower terminal base section, the lower terminal vertical section, and the lower terminal rearward extension section are all smaller than the width of each lower grounding terminal.

7. The improved HDMI high-speed connector according to claim 1, wherein: The middle clip is provided with a plurality of upper terminal grounding springs and a plurality of lower terminal grounding springs. The upper terminal grounding springs are in contact with the upper grounding terminals respectively, and the lower terminal grounding springs are in contact with the lower grounding terminals.

8. The improved HDMI high-speed connector according to claim 1, wherein: Both sides of the middle clip are respectively provided with middle clip shell contact parts extending out of both sides of the plastic body, and the middle clip shell contact parts are in contact with the inner wall of the metal shell.

9. The improved HDMI high-speed connector according to claim 1, wherein: The rear end edge of the middle clip is bent toward the direction of the vertical section of the lower terminal to form a middle clip grounding piece.

10. The improved HDMI high-speed connector according to claim 1, wherein: Positioning welding feet are respectively provided on both sides of the bottom of the metal shell, and elastic pressing sheets protruding inwards are respectively provided on the top and bottom of the metal shell.

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