A low cost high speed electrical connector

Abstract

The utility model discloses a low -cost high -speed rate electric connector, including insulating body, upper row terminal module group and lower row terminal module group, upper row terminal module group includes at least one pair of upper row signal terminal and at least one upper row ground terminal, and lower row terminal module group includes at least one pair of lower row signal terminal and at least one lower row ground terminal, the utility model has widened the width of the ground terminal below or above each group signal terminal group, makes the projection of ground terminal and the two signal terminals in corresponding signal terminal group all exist overlapping area, like this can form the innovation of large -area ground reflow path, can accelerate the reflow of signal, can play the isolation effect between high -speed signal terminal, also can adjust impedance through the distance of drawing near ground, and it need not adopt middle clamping piece, and the structure greatly simplifies, and the production cost is lower, and can improve signal integrity of signal terminal, has improved high frequency rate, and transmission speed can reach 96Gbps or above.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and more specifically, to a low-cost, high-speed electrical connector capable of transmission speeds of 96Gbps or higher. Background Technology

[0002] Currently, commercially available electrical connectors (such as HDMI connectors) generally consist of a metal shell, an insulating body, an upper terminal block module, and a lower terminal block module. With technological advancements in the connector industry, to reduce signal interference between the upper and lower terminal blocks and to support higher speeds, existing electrical connectors require the addition of a middle clip between the upper and lower terminal blocks to improve impedance and crosstalk at high frequencies and speeds, thereby reducing interference. However, adding a middle clip significantly increases the cost of the electrical connector, and the production and assembly process of the middle clip is more complex, reducing connector production efficiency. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a high-speed electrical connector that does not require a middle clip, has a greatly simplified structure, low production cost, and can achieve a transmission speed of 96Gbps or higher.

[0004] To achieve the above objectives, this utility model provides a low-cost, high-speed electrical connector, comprising an insulating body, an upper row terminal module, and a lower row terminal module. The upper and lower row terminal modules are respectively mounted within the insulating body. All mating contact portions of the upper row terminals in the upper row terminal module are exposed on the upper surface of the tongue plate of the insulating body. Similarly, all mating contact portions of the lower row terminals in the lower row terminal module are exposed on the lower surface of the tongue plate of the insulating body. The upper row terminals in the upper row terminal module include at least one pair of adjacent upper row signal terminals and at least one widened upper row grounding terminal. Each pair of upper row signal terminals forms an upper row signal terminal group. The lower row terminals in the lower row terminal module include at least one pair of... The lower row signal terminals and at least one widened lower row ground terminal are arranged in an adjacent state. Each pair of lower row signal terminals forms a lower row signal terminal group. The upper row ground terminal is located above the middle part of each lower row signal terminal group. The width of the main body of the upper row ground terminal is greater than the width of the main body of the lower row signal terminal. The projection of the upper row ground terminal overlaps with the two lower row signal terminals in each lower row signal terminal group. The lower row ground terminal is located below the middle part of each upper row signal terminal group. The width of the main body of the lower row ground terminal is greater than the width of the main body of the upper row signal terminal. The projection of the lower row ground terminal overlaps with the two upper row signal terminals in each upper row signal terminal group.

[0005] Preferably, the width of the main body of the upper row of grounding terminals and the width of the main body of the lower row of grounding terminals are set to 0.52 to 1.12 mm, respectively.

[0006] Preferably, the width of the main body of the upper row of signal terminals and the width of the main body of the lower row of signal terminals are set to 0.11 to 0.71 mm, respectively.

[0007] Preferably, the mating contact points of the two upper row signal terminals in each upper row signal terminal group are designed with outward bends, thereby increasing the distance between the mating contact points of two adjacent upper row signal terminals.

[0008] Preferably, the mating contact points of the two lower row signal terminals in each lower row signal terminal group are designed with outward bends, thereby increasing the distance between the mating contact points of two adjacent lower row signal terminals.

[0009] Preferably, the rear ends of the main body of all the lower terminals in the lower terminal module are tilted backward and downward, then bent into a horizontal state, and then tilted backward and downward again to connect with the solder feet of the lower terminals that are in a horizontal state.

[0010] Preferably, the solder feet of each lower terminal of the lower terminal module are located between the solder feet of two adjacent upper terminals of the upper terminal module, and the solder feet of all lower terminals of the lower terminal module are on the same plane as the solder feet of all upper terminals of the upper terminal module.

[0011] Preferably, the insulating body is provided with a metal shell, and the bottom two sides of the metal shell are respectively provided with shell positioning pins.

[0012] Preferably, the bottom sides of the insulating body are respectively provided with foot pads extending below the bottom of the metal shell, and the foot pads extend horizontally.

[0013] Preferably, the metal casing has a metal back cover on the back.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention widens the width of the grounding terminal located below or above each group of signal terminals, so that the projection of the grounding terminal overlaps with the two signal terminals in the corresponding signal terminal group. This creates an innovative large-area return path, which accelerates signal return and isolates high-speed signal terminals. It also adjusts impedance by bringing the ground closer. This invention eliminates the need for a middle clip, greatly simplifies the structure, reduces production costs, improves signal integrity of the signal terminals, and increases high-frequency data rates, achieving transmission speeds of 96Gbps or higher. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the high-speed electrical connector provided in this embodiment of the utility model. Figure 1 (Front side);

[0018] Figure 2 This is a schematic diagram of the structure of the high-speed electrical connector provided in this embodiment of the utility model. Figure 2 (Rear side);

[0019] Figure 3 This is a schematic diagram of the structure of the high-speed electrical connector provided in this embodiment of the present invention after the metal shell has been removed;

[0020] Figure 4 This is a schematic diagram of the structure of the upper row terminal module and the lower row terminal module provided in this embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the upper terminal module provided in an embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of the lower terminal module provided in this embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram showing the positions of the upper row of grounding terminals and the two lower row of signal terminals provided in this embodiment of the utility model. Figure 1 (Looking up);

[0024] Figure 8 This is a schematic diagram showing the positions of the upper row of grounding terminals and the two lower row of signal terminals provided in this embodiment of the utility model. Figure 2 (face);

[0025] Figure 9 This is an experimental test diagram of the characteristic impedance provided in this embodiment of the utility model;

[0026] Figure 10 This is an experimental test diagram of insertion loss provided in an embodiment of this utility model;

[0027] Figure 11 This is an experimental test diagram of far-end crosstalk provided in an embodiment of this utility model;

[0028] Figure 12 This is an experimental test diagram of the mode switching control provided in this embodiment of the utility model;

[0029] Figure 13 This is an experimental test diagram of return loss provided in an embodiment of this utility model. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] Please refer to Figures 1 to 4 The present invention provides a low-cost, high-speed electrical connector, preferably an HDMI connector, which includes an insulating body 1, an upper terminal module 2, and a lower terminal module 3. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0032] During manufacturing, the upper row terminal module 2 and the lower row terminal module 3 can be integrally formed with the insulating body 1 by injection molding. The upper row terminal module 2 and the lower row terminal module 3 can be embedded in the insulating body 1 respectively. After manufacturing, the mating contact parts of all the upper row terminals in the upper row terminal module 2 are exposed on the upper surface of the tongue plate 10 of the insulating body 1, and the mating contact parts of all the lower row terminals in the lower row terminal module 3 are exposed on the lower surface of the tongue plate 10 of the insulating body 1. The solder feet 23 of all the upper row terminals in the upper row terminal module 2 and the solder feet 33 of all the lower row terminals in the lower row terminal module 3 extend out from the bottom rear end of the insulating body 1.

[0033] like Figure 4 and Figure 5As shown, the upper row terminal module 2 may include two pairs of upper row signal terminals 21 in an adjacent state and two upper row grounding terminals 22 that have been widened. Each pair of upper row signal terminals 21 forms a group of upper row signal terminals.

[0034] like Figure 4 and Figure 6 As shown, the lower row terminal module 3 may include two pairs of lower row signal terminals 31 in an adjacent state and two lower row grounding terminals 32 that have been widened. Each pair of lower row signal terminals 31 forms a lower row signal terminal group, and the lower row grounding terminals 32 are located below the middle part of each upper row signal terminal group.

[0035] like Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the width of the main body of the upper row grounding terminal 22 can be greater than the width of the main body of the lower row signal terminal 31, and also greater than the distance between the two lower row signal terminals 31. In this way, the projection of the upper row grounding terminal 22 overlaps with the two lower row signal terminals 31 in each group of lower row signal terminals.

[0036] Similarly, the width of the main body of the lower row grounding terminal 32 can be greater than the width of the main body of the upper row signal terminal 21, and also greater than the distance between the two upper row signal terminals 21. In this way, the projection of the lower row grounding terminal 32 overlaps with the two upper row signal terminals 21 in each group of upper row signal terminals.

[0037] Specifically, the width of the main body of the upper row grounding terminal 22 and the width of the main body of the lower row grounding terminal 32 can be set to 0.52-1.12 mm, and more preferably, to 0.82 mm. The width of the main body of the upper row signal terminal 21 and the width of the main body of the lower row signal terminal 31 can be set to 0.11-0.71 mm, and more preferably, to 0.41 mm. Of course, the widths of the grounding terminals and signal terminals can be increased or decreased arbitrarily according to actual needs, and are not limited to this embodiment.

[0038] In this embodiment, the width of the grounding terminal located below or above each group of signal terminals is widened, so that the projection of the grounding terminal overlaps with the two signal terminals in the corresponding signal terminal group. This creates an innovative large-area return path, which can accelerate the return of signals, isolate high-speed signal terminals, and adjust impedance by bringing the ground closer.

[0039] like Figure 4 and Figure 5As shown, the mating contact points of the two upper row signal terminals 21 in each group of upper row signal terminals can be configured with an outward bend, thereby increasing the distance between the mating contact points of two adjacent upper row signal terminals 21. Similarly, as... Figure 6 and Figure 7 As shown, the mating contact points of the two lower row signal terminals 31 in each lower row signal terminal group can also be set with an outward bend, thereby increasing the distance between the mating contact points of two adjacent lower row signal terminals 31.

[0040] In this embodiment, the mating contact portion of the upper row signal terminal 21 and the mating contact portion of the lower row signal terminal 31 are configured with an external bend to adjust the impedance.

[0041] like Figure 6 As shown, in a preferred embodiment, the rear end of the main body of all the lower terminals in the lower terminal module 3 can be tilted backward and downward, then bent into a horizontal state, and then tilted backward and downward again to connect with the solder foot 33 of the lower terminal in the horizontal state.

[0042] Preferably, the solder feet 33 of each lower terminal of the lower terminal module 3 can be located between the solder feet 23 of two adjacent upper terminals of the upper terminal module 2, and the solder feet of all lower terminals of the lower terminal module 3 and the solder feet of all upper terminals of the upper terminal module 2 can be on the same plane, which facilitates the soldering of all terminals of the connector to the circuit board.

[0043] like Figure 1 and Figure 2 As shown, the outside of the insulating body 1 may also be provided with a metal shell 4, the back of the metal shell 4 is provided with a metal back cover 5, and the bottom sides of the metal shell 4 are respectively provided with shell positioning pins 41 for the circuit board to be inserted into the socket.

[0044] like Figure 1 and Figure 3 As shown, the bottom sides of the insulating body 1 may also be provided with foot pads 11 extending from the bottom of the metal shell, with the two foot pads 11 extending horizontally and symmetrically arranged. The foot pads 11 enable the connector to maintain balance after it is installed on the circuit board.

[0045] like Figures 9 to 13 As shown, through simulation testing, the connector in this embodiment can meet the requirements of five performance indicators, including characteristic impedance, insertion loss, far-end crosstalk, mode conversion control, and return loss, thereby improving the signal transmission performance and quality and making the overall signal transmission more stable and reliable.

[0046] In summary, this utility model eliminates the need for a middle clip, greatly simplifies the structure, reduces production costs, improves signal integrity at the signal terminals, increases high-frequency speeds, and achieves transmission speeds of 96Gbps or higher.

[0047] It should be noted that, in addition to being configured as an HDMI connector, the electrical connector in this embodiment can also be a DP connector or other types of electrical connectors.

[0048] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A low-cost, high-speed electrical connector, comprising an insulating body, an upper row terminal module, and a lower row terminal module, wherein the upper row terminal module and the lower row terminal module are respectively mounted within the insulating body, wherein the mating contact portions of all upper row terminals in the upper row terminal module are exposed on the upper surface of the tongue plate of the insulating body, and the mating contact portions of all lower row terminals in the lower row terminal module are exposed on the lower surface of the tongue plate of the insulating body, characterized in that: The upper row terminal module includes at least one pair of adjacent upper row signal terminals and at least one widened upper row ground terminal. Each pair of upper row signal terminals forms an upper row signal terminal group. The lower row terminal module includes at least one pair of adjacent lower row signal terminals and at least one widened lower row ground terminal. Each pair of lower row signal terminals forms a lower row signal terminal group. The upper row ground terminal is located above the middle part of each lower row signal terminal group. The width of the main body of the upper row ground terminal is greater than the width of the main body of the lower row signal terminal. The projection of the upper row ground terminal overlaps with the two lower row signal terminals in each lower row signal terminal group. The lower row ground terminal is located below the middle part of each upper row signal terminal group. The width of the main body of the lower row ground terminal is greater than the width of the main body of the upper row signal terminal. The projection of the lower row ground terminal overlaps with the two upper row signal terminals in each upper row signal terminal group.

2. The low-cost, high-speed electrical connector according to claim 1, characterized in that: The width of the main body of the upper row of grounding terminals and the width of the main body of the lower row of grounding terminals are respectively set to 0.52-1.12 mm.

3. A low-cost, high-speed electrical connector according to claim 1 or 2, characterized in that: The width of the main body of the upper row of signal terminals and the width of the main body of the lower row of signal terminals are respectively set to 0.11-0.71 mm.

4. A low-cost, high-speed electrical connector according to claim 1, characterized in that: The mating contact points of the two upper row signal terminals in each group of upper row signal terminals are designed with outward bends, thereby increasing the distance between the mating contact points of two adjacent upper row signal terminals.

5. A low-cost, high-speed electrical connector according to claim 1, characterized in that: The mating contact points of the two lower row signal terminals in each lower row signal terminal group are designed with an outward bend, thereby increasing the distance between the mating contact points of two adjacent lower row signal terminals.

6. A low-cost, high-speed electrical connector according to claim 1, characterized in that: All the lower terminal blocks in the lower terminal block module have their main body sections tilted backward and downward at the rear end, then bent into a horizontal state, and then tilted backward and downward again to connect with the solder feet of the horizontal lower terminal blocks.

7. A low-cost, high-speed electrical connector according to claim 1, characterized in that: The solder feet of each lower terminal of the lower terminal module are located between the solder feet of two adjacent upper terminals of the upper terminal module, and the solder feet of all lower terminals of the lower terminal module are on the same plane as the solder feet of all upper terminals of the upper terminal module.

8. A low-cost, high-speed electrical connector according to claim 1, characterized in that: The insulating body is provided with a metal shell, and the bottom two sides of the metal shell are respectively provided with shell positioning pins.

9. A low-cost, high-speed electrical connector according to claim 8, characterized in that: The bottom of the insulating body is provided with foot pads on both sides, extending from the bottom of the metal shell, and the foot pads extend horizontally.

10. A low-cost, high-speed electrical connector according to claim 8, characterized in that: The metal casing has a metal back cover on its back.

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