CN115296089A

CN115296089A - Electric connector with high transmission efficiency

Info

Publication number: CN115296089A
Application number: CN202210938129.1A
Authority: CN
Inventors: 夏新春; 肖彪
Original assignee: Dongguan City Shuanghe Hardware Plastic Co ltd
Current assignee: Dongguan City Shuanghe Hardware Plastic Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-04
Anticipated expiration: 2042-08-05
Also published as: CN115296089B

Abstract

The invention belongs to the technical field of signal transmission, and particularly relates to an electric connector with high transmission efficiency, which comprises a plug, a metal shielding piece, a first grounding terminal, a second grounding terminal, a first power supply terminal, a resistor, a second power supply terminal, a first signal terminal and a second signal terminal, wherein the metal shielding piece is accommodated in the plug, the metal shielding piece separates the first grounding terminal from the second grounding terminal, the first power supply terminal from the second power supply terminal, the first signal terminal from the second signal terminal, the first grounding terminal and the second grounding terminal are respectively lapped on the metal shielding piece, the metal shielding piece is provided with a longitudinally extending through hole, the first power supply terminal is provided with an electric connection part penetrating through the through hole, the electric connection part is not contacted with the metal shielding piece, and the second power supply terminal is connected with the electric connection part through the resistor. The invention can effectively improve the high-frequency capability and the anti-interference capability of the electric connector and obviously improve the signal transmission efficiency.

Description

Electric connector with high transmission efficiency

Technical Field

The invention belongs to the technical field of signal transmission, and particularly relates to an electric connector with high transmission efficiency.

Background

In current signal transmission, the interface types of the display are mainly DP (display port), HDMI and DVI, wherein the DP (display port) male connector can be used as a new generation digital interface for products such as PCs, LCD display screens, monitors and consumer electronics devices. Different connector types can be selected for different model designs of customers, and for this purpose, the DP connector mainly comprises a straight-head DP connector, an elbow DP connector and a reverse elbow DP connector.

However, in the conventional electrical connector, in order to improve the transmission performance, a PCB or an FPC is usually additionally disposed in the electrical connector, so that the overall structure of the electrical connector is complicated to assemble and the cost is greatly increased, and the electrical connector also has a problem of signal interference, so that the electrical connector cannot obtain the effect of high-speed transmission.

Disclosure of Invention

The invention aims to: to the not enough of prior art, provide a transmission efficient electric connector, its high frequency ability and the interference killing feature that can effectively improve electric connector are showing the efficiency that has promoted signal transmission.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electric connector with high transmission efficiency comprises a plug and a transmission assembly accommodated in the plug;

the transmission assembly comprises a metal shield, a first ground terminal, a second ground terminal, a first power terminal, a resistor, a second power terminal, a first signal terminal and a second signal terminal;

the metal shield separates the first and second ground terminals, the first and second power terminals, the first and second signal terminals;

the first grounding terminal and the second grounding terminal are respectively lapped on the metal shielding piece;

the metal shielding member has a longitudinally extending through-hole, the first power terminal has an electrical connection portion passing through the through-hole, the electrical connection portion is not in contact with the metal shielding member, and the second power terminal is connected with the electrical connection portion through the resistor.

As an improvement of the electrical connector of the present invention, each of the first ground terminal and the second ground terminal has a first widened portion and a second widened portion having successively larger widths, and the metal shield has a plurality of lead-out spring pieces respectively lapped over the respective first widened portions.

As an improvement of the electrical connector of the present invention, the metal shield has at least one first shield plate body extending in a horizontal direction, and the through-hole penetrates the first shield plate body in a thickness direction of the first shield plate body.

As an improvement of the electrical connector of the present invention, the metal shielding member includes a second shielding plate extending in a horizontal direction, two first shielding plates, and a plurality of arc-shaped engaging portions, the first shielding plates are connected to the second shielding plates through the engaging portions, and the second shielding plates are disposed between the two first shielding plates.

As an improvement of the electrical connector of the present invention, the thickness of the electrical connection portion is W1, the thickness of the first shielding plate body is W2, and the relationship: W1/W2 is more than or equal to 0.5 and less than or equal to 1.5.

As an improvement of the electrical connector of the present invention, a first gap with a thickness W3 is provided between the first shielding plate body close to the resistor and the resistor, and a second gap with a thickness W4 is provided between the second shielding plate body and the first shielding plate body, and the relationship: W2/W3 is more than or equal to 0.3 and less than or equal to 0.55; W3/W4 is more than or equal to 0.4 and less than or equal to 0.75.

As an improvement of the electrical connector of the present invention, the electrical connection portion has a first plane extending in a horizontal direction, the second power terminal has a body portion and a contact portion protruding out of the body portion, the resistors are respectively connected to the first plane and the contact portion, the contact portion is connected to a surface of the resistor and is at the same level as the first plane, the first ground terminal, the first power terminal and the first signal terminal are mounted on a first insulating base, the second ground terminal, the second power terminal and the second signal terminal are mounted on a second insulating base, the first insulating base and the second insulating base are in concave-convex fit, the metal shield is disposed in a space surrounded by the first insulating base and the second insulating base, and the first insulating base is provided with an insulating side plate penetrating through the through opening and surrounding the electrical connection portion.

As an improvement of the electrical connector of the present invention, each of the first signal terminal and the second signal terminal has a first extension section, a second extension section and a third extension section which are sequentially connected, the width of the first signal terminal and the width of the second signal terminal along the horizontal direction decrease first and then increase, the front ends of the first ground terminal, the second ground terminal, the first power terminal, the second power terminal, the first signal terminal and the second signal terminal are respectively set to be V-shaped structures, the electrical connection portion is bent in an arc shape and penetrates into the through hole, and the cross section of the first power terminal is in a shape of a Chinese character 'ren'.

As an improvement of the electrical connector of the present invention, the first ground terminals, the first power terminals, and the first signal terminals are distributed on a lower side of the metal shield, the number of the first ground terminals is at least two, the number of the first signal terminals is at least six, at least two first signal terminals are provided between adjacent first ground terminals, the second power terminals, and the second signal terminals are distributed on an upper side of the metal shield, the number of the second ground terminals is at least three, and at least two second signal terminals are provided between adjacent second ground terminals.

As an improvement of the electrical connector of the present invention, the plug includes an insulating base and a first metal shell sleeved on the insulating base, the transmission assembly is mounted on the insulating base, a tail portion of the first metal shell is connected to a second metal shell through a fixing buckle, and the second metal shell accommodates a cable connected to the transmission assembly.

The invention has the beneficial effects that: 1) The metal shielding piece of the electric connector separates the first grounding terminal and the second grounding terminal, the metal shielding piece separates the first power terminal and the second power terminal, the metal shielding piece separates the first signal terminal and the second signal terminal, the first grounding terminal and the second grounding terminal are respectively lapped on the metal shielding piece, and the metal shielding piece has excellent signal interference resistance, so that the signal ends on two opposite sides of the metal shielding piece can transmit signals at high speed without signal interference, and the signal transmission capability of the electric connector is enhanced; 2) The utility model provides a metal shielding part has longitudinal extension's opening, first power supply terminal has the electric connection portion that passes the opening, electric connection portion does not contact with metal shielding part, and simultaneously, the second power supply terminal passes through resistance and is connected with electric connection portion, because first power supply terminal directly passes through resistance and is connected with the second power supply terminal, when the signal of telecommunication is transmitted in first power supply terminal and second power supply terminal, metal shielding part all has anti signal interference's effect to first power supply terminal and second power supply terminal, electric connector's electrically controlled performance is excellent has been ensured, and first power supply terminal and second power supply terminal direct connection resistance do not need additionally to increase the PCB board, resistance has certain guard action to electric connector's signal transmission, electric connector's operation security has been strengthened effectively and electric connector's assembly cost has been reduced.

Drawings

Fig. 1 is a perspective view of a transfer assembly of the present invention.

Fig. 2 is a perspective view of the metal shield of the present invention.

Fig. 3a is a schematic view of the assembly of the transmission assembly and the second insulating base of the present invention.

Fig. 3b is a schematic view of the assembly of the transmission assembly and the first insulating base of the present invention.

Fig. 3c is a schematic structural diagram of another view angle of the transmission assembly and the first insulating base according to the present invention.

Fig. 3d is a schematic assembly diagram of the first insulating base, the second insulating base and the transmission assembly of the present invention.

Fig. 4 is a schematic structural diagram of the first ground terminal, the first power terminal and the first signal terminal of the present invention.

Fig. 5 is a schematic structural diagram of a second ground terminal, a second power terminal and a second signal terminal according to the present invention.

Fig. 6 is an assembly view of the first signal terminal, the first power terminal, the resistor, the first ground terminal and the metal shield of the present invention.

Fig. 7 is a side view of the transfer assembly of the present invention.

Fig. 8 is a schematic diagram showing the relationship among the sizes of the electrical connection portion, the first shielding plate, the first gap, and the second gap according to the present invention.

Fig. 9 is an exploded view of the present invention.

Fig. 10 is a perspective view of the present invention.

Wherein: 1. a metal shield; 10. a port; 11. leading out the elastic sheet; 1a, a first shielding plate body; 1b, a second shielding plate body; 1c, a linking part; 21. a first ground terminal; 22. a second ground terminal; 23. a first widening; 24. a second widened portion; 31. a first insulating base; 31a, an insulating side plate; 32. a second insulating base; 4. a first power supply terminal; 41. an electrical connection portion; 41a, a first plane; 5. a resistance; 6. a second power supply terminal; 60. a body portion; 61. a contact portion; 71. a first signal terminal; 72. a second signal terminal; 73. a first extension section; 74. a second extension section; 75. a third extension section; 81. an insulating base; 82. a first metal shell; 83. a fixing buckle; 84. a second metal shell; 85. a protective sleeve; 12. a first gap; 13. a second gap; w1, thickness of the electrical connection portion; w2, thickness of the first shield plate body; w3, thickness of the first gap; w4, thickness of the second gap; t1, horizontal direction; t2, the thickness direction of the first shield plate.

Detailed Description

As used in this specification and the appended claims, certain terms are used to refer to particular components, and it will be appreciated by those skilled in the art that a manufacturer may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "longitudinal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The inventors have found that signal crosstalk or interference between the individual PIN PINs of the existing DP connector is so severe that its transmission rate is low, and have also found that in the existing DP connector, the individual PIN PINs are generally fixed using an insulating material, which is not effective for overcoming the problem of crosstalk or interference between high frequency signals. In this regard, the present application optimizes the internal structure of the connector to significantly improve the transmission performance of the connector, and the present invention will be described in further detail with reference to fig. 1 to 10 and the specific embodiments, but is not limited thereto.

Example 1

An electric connector with high transmission efficiency comprises a plug and a transmission assembly accommodated in the plug, wherein one end of the plug is provided with a socket, the transmission assembly comprises a metal shielding piece 1, a first grounding terminal 21, a second grounding terminal 22, a first power terminal 4, a resistor 5, a second power terminal 6, a first signal terminal 71 and a second signal terminal 72, the transmission assembly comprises the metal shielding piece 1, the first grounding terminal 21, the second power terminal 4 and the first signal terminal 71 are arranged in the transmission assembly, the PIN PINs in the lower row comprise the first grounding terminal 21, the first power terminal 4 and the first signal terminal 71, the PIN PINs in the upper row comprise the second grounding terminal 22, the second power terminal 6 and the second signal terminal 72, the metal shielding piece 1 is arranged between the PIN PINs in the lower row and the PIN PINs in the upper row so as to separate the first grounding terminal 21 from the second grounding terminal 22, separate the first power terminal 4 from the second power terminal 6, separate the first signal terminal 71 from the second signal terminal 72, the first grounding terminal 21 and the second grounding terminal 22 are respectively lapped on the metal shielding piece 1, on the one hand, the other hand, the signal transmission rate of each PIN and the signal shielding piece can be effectively improved, and the high-frequency interference of the metal shielding piece can be greatly improved, and the grounding performance of the metal shielding piece can be greatly improved, and the high-frequency interference of the metal shielding piece can be greatly improved.

Meanwhile, referring to fig. 2, the metal shielding member 1 has a through opening 10 extending longitudinally, and in conjunction with fig. 1, the first power terminal 4 has an electrical connection portion 41 penetrating through the through opening 10, the electrical connection portion 41 extends upwards along the extending direction of the through opening 10, the second power terminal 6 is connected with the electrical connection portion 41 through a resistor 5, and, in order to prevent the power terminal from touching the ground terminal, the electrical connection portion 41 does not contact the metal shielding member 1 and is separated from the metal shielding member 1 by a certain distance, the first power terminal 4 and the second power terminal 6 are directly connected with the resistor 5 without additionally adding a PCB board, and the resistor 5 has a certain protection effect on the signal transmission of the electrical connector, thereby effectively enhancing the operation safety of the electrical connector and reducing the assembly cost of the electrical connector.

In the electrical connector, the resistor 5 may be a chip resistor, the resistance of the resistor 5 may be 100k Ω to 1000k Ω, and specifically may be 200k Ω, 360k Ω, 480k Ω, 560k Ω, 680k Ω, or 800k Ω, and the resistor 5 further has a signal recognition function, that is, in an operation process of the electrical connector, by setting the resistors 5 with different resistances at the first power terminal 4 and the second power terminal 6, various signals may be selectively received and output in the electrical connector through the resistors 5 with different resistances.

In the electrical connector of the present application, referring to fig. 3a, the second ground terminals 22, the second power terminals 6 and the second signal terminals 72 are mounted on the second insulating base 32, and referring to fig. 1 and 5, the second ground terminals 22, the second power terminals 6 and the second signal terminals 72 are distributed on the upper side of the metal shielding member 1, the number of the second ground terminals 22 is at least three, and at least two second signal terminals 72 are provided between adjacent second ground terminals 22, wherein the second power terminal 6 is disposed between one of the second signal terminals 72 and one of the second ground terminals 22.

In the electrical connector of the present application, referring to fig. 3b, 3c and 3d, the first ground terminal 21, the first power terminal 4 and the first signal terminal 71 are mounted to the first insulating base 31, the first insulating base 31 and the second insulating base 32 are engaged with each other in a concave-convex manner, the metal shield 1 is disposed in a space surrounded by the first insulating base 31 and the second insulating base 32, and, in order to prevent the electrical connection portion 41 of the first power terminal 4 and the metal shield 1 from touching, the first insulating base 31 is provided with an insulating side plate 31a penetrating through the through opening 10 and surrounding the electrical connection portion 41.

In the electrical connector of the present application, referring to fig. 1 and fig. 4, the first ground terminals 21, the first power terminals 4 and the first signal terminals 71 are distributed on the lower side of the metal shield 1, and a distance between the first ground terminals 21 and the first signal terminals 71 is smaller than a distance between the first power terminals 4 and the first signal terminals 71, so that a situation of signal crosstalk can be effectively avoided, wherein the number of the first ground terminals 21 is at least two, the number of the first signal terminals 71 is at least six, at least two first signal terminals 71 are provided between adjacent first ground terminals 21, and the first power terminal 4 is disposed between one of the first signal terminals 71 and one of the first ground terminals 21.

Preferably, referring to fig. 4 and 5, the electrical connection portion 41 has a first plane 41a extending in the horizontal direction T1, the second power terminal 6 has a body portion 60 and a contact portion 61 protruding from the body portion 60, the resistor 5 is connected to the first plane 41a and the contact portion 61, respectively, and the surface of the contact portion 61 connected to the resistor 5 is at the same horizontal level as the first plane 41 a.

Preferably, each of the first signal terminal 71 and the second signal terminal 72 has a first extension 73, a second extension 74 and a third extension 75 connected in sequence, and the width of the first signal terminal 71 and the width of the second signal terminal 72 in the horizontal direction T1 decrease first and then increase, so that the width of the first extension 73 is greater than the width of the second extension 74, and the width of the second extension 74 is smaller than the width of the third extension 75.

Preferably, the front ends of the first ground terminal 21, the second ground terminal 22, the first power terminal 4, the second power terminal 6, the first signal terminal 71 and the second signal terminal 72 are respectively provided with a V-shaped structure, wherein the V-shaped structures of the lower row PIN and the upper row PIN are oppositely oriented, the front end of the lower row PIN is in an inverted V shape, the front end of the upper row PIN is in a positive V shape, and in the transmission assembly, the electrical connection part 41 is bent in an arc shape to penetrate into the through hole 10, so that the cross section of the first power terminal 4 is in a shape of a "herringbone".

Preferably, each of the first and

second ground terminals

21 and 22 has a first widened portion 23 and a second widened portion 24 having successively larger widths, the first widened portion 23 is connected to the second widened portion 24, the second widened portion 24 has a width larger than that of the first widened portion 23, and the metal shield 1 has a plurality of lead-out spring pieces 11 respectively overlapping the respective first widened portions 23, the lead-out spring pieces 11 may have an arc shape, wherein the number of the lead-out spring pieces 11 is equal to that of the ground terminals, and each of the lead-out spring pieces 11 corresponds to the first widened portion 23 of each of the ground terminals one by one. By so arranging, the flexibility of contact between the metal shield 1 and each ground terminal can be effectively increased.

Preferably, as shown in fig. 6 to 7, the metal shield 1 has at least one first shield plate body 1a extending in a horizontal direction T1, and the through opening 10 penetrates the first shield plate body 1a in a thickness direction T2 of the first shield plate body 1a, so that the insulating side plate 31a and the electrical connection portion 41 can penetrate the first shield plate body 1a in the through opening 10 in the thickness direction T2 of the first shield plate body 1a.

Preferably, the metal shielding member 1 has a second shielding plate body 1b extending along the horizontal direction T1, two first shielding plate bodies 1a and a plurality of arc-shaped linking portions 1c, the first shielding plate bodies 1a are connected to the second shielding plate body 1b through the linking portions 1c, and the second shielding plate body 1b is disposed between the two first shielding plate bodies 1a. At the same time, the second shielding plate body 1b also has a longitudinally extending through opening 10.

Wherein, the metal shielding member 1 may form a zigzag structure, an S-shaped structure or a zigzag structure. Each first shielding plate body 1a may be connected to the second shielding plate body 1b between the two first shielding plate bodies 1a by providing one of the ends thereof with an arc-shaped engaging portion 1c, or by providing one of the opposite ends thereof with an arc-shaped engaging portion 1 c.

The inventor finds that when the metal shielding part 1 has a three-layer or more plate body structure, the signal interference resisting effect of the metal shielding part 1 is optimal, and through a performance test of the DP electrical connector provided with the three-layer plate body metal shielding part 1, the transmission bandwidth of the DP electrical connector can reach 81Gbps to 90Gbps, so that the high-frequency capability, the transmission capability and the transmission speed of the electrical connector are remarkably improved.

Preferably, as shown in fig. 6 to 8, the thickness of the electrical connection portion 41 is W1, and the thickness of the first shielding plate body 1a is W2, and the relation: W1/W2 is more than or equal to 0.5 and less than or equal to 1.5, wherein a first gap 12 with the thickness of W3 is arranged between the first shielding plate body 1a close to the resistor 5 and the resistor 5, and a second gap 13 with the thickness of W4 is arranged between the second shielding plate body 1b and the first shielding plate body 1a, and the relation formula is satisfied: W2/W3 is more than or equal to 0.3 and less than or equal to 0.55; W3/W4 is more than or equal to 0.4 and less than or equal to 0.75, and the signal interference resisting effect of the metal shielding part 1 can reach the best state through the arrangement and optimization.

In the electrical connector of the present application, as shown in fig. 9 to 10, the plug includes an insulating base 81 and a first metal shell 82 sleeved on the insulating base 81, the first insulating base 31, the second insulating base 32 and the transmission assembly are all installed on the insulating base 81, the head of the first metal shell 82 corresponds to the socket of the plug, the tail of the first metal shell 82 is connected with a second metal shell 84 through a fixing buckle 83, the second metal shell 84 accommodates a cable connected to the transmission assembly, wherein a protective sleeve 85 is sleeved on the side of the first metal shell 82, and the second metal shell 84 is accommodated in the protective sleeve 85.

In the plug, the insulating base 81 and the first metal shell 82 may be concave-convex fitted, and the insulating base 81, the first metal shell 82 and the second metal shell 84 are each provided with a catching groove matching with the fixing catch 83, so that the two fixing catches 83 in the electrical connector can fix the insulating base 81, the first metal shell 82 and the second metal shell 84 at the same time.

Example 2

Unlike embodiment 1, the thickness W1 of the electrical connection portion 41 and the thickness W2 of the first shielding plate body 1a of the present embodiment may specifically satisfy one of the following relational expressions: W1/W2 is more than or equal to 0.75 and less than or equal to 0.8, W1/W2 is more than or equal to 0.8 and less than or equal to 0.9, W1/W2 is more than or equal to 0.9 and less than or equal to 0.95, W1/W2 is more than or equal to 0.95 and less than or equal to 1.0, W1/W2 is more than or equal to 1.0 and less than or equal to 1.05 and less than or equal to 1.1, the thickness of the first shielding plate body 1a can be 0.5 mm-5 mm, and the thickness of the second shielding plate body 1b is equal to that of the first shielding plate body 1a.

Other structures of this embodiment are the same as those of embodiment 1, and are not described herein again.

Example 3

Unlike embodiments 1 to 2, W2 and W3 of the present embodiment may specifically satisfy one of the following relational expressions: W2/W3 is more than or equal to 0.3 and less than or equal to 0.35, W2/W3 is more than or equal to 0.35 and less than or equal to 0.4, W2/W3 is more than or equal to 0.4 and less than or equal to 0.45, W2/W3 is more than or equal to 0.45 and less than or equal to 0.5, and W2/W3 is more than or equal to 0.5 and less than or equal to 0.55.

W3 and W4 may specifically satisfy one of the following relationships: W3/W4 is more than or equal to 0.4 and less than or equal to 0.45, W3/W4 is more than or equal to 0.45 and less than or equal to 0.5, W3/W4 is more than or equal to 0.5 and less than or equal to 0.55, W3/W4 is more than or equal to 0.55 and less than or equal to 0.6, W3/W4 is more than or equal to 0.6 and less than or equal to 0.65, W3/W4 is more than or equal to 0.65 and less than or equal to 0.7, and W3/W4 is more than or equal to 0.7 and less than or equal to 0.75.

Other structures of this embodiment are the same as those of embodiments 1 to 2, and are not described herein again.

Obviously, the structure of this application is stable reliable, can effectively improve electric connector's high frequency ability and interference killing feature, is showing the efficiency that has promoted signal transmission.

Variations and modifications to the above-described embodiments may also occur to those skilled in the art, which fall within the scope of the invention as disclosed and taught herein. Therefore, the present invention is not limited to the above-mentioned embodiments, and any obvious improvement, replacement or modification made by those skilled in the art based on the present invention is within the protection scope of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A transmission efficient electrical connector, comprising:

the transmission assembly is accommodated in the plug;

2. A transmission-efficient electrical connector as in claim 1 wherein: the first and second ground terminals each have first and second widened portions having successively larger widths, and the metal shield has a plurality of lead-out spring pieces respectively lapped over the first widened portions.

3. A transmission efficient electrical connector as in claim 1 wherein: the metal shielding part is provided with at least one first shielding plate body extending along the horizontal direction, and the through opening is penetrated through the thickness direction of the first shielding plate body.

4. A transmission efficient electrical connector as in claim 3 wherein: the metal shielding part is provided with a second shielding plate body and two second shielding plate bodies extending along the horizontal direction, the first shielding plate bodies and a plurality of arc-shaped connection portions are arranged, the first shielding plate bodies are connected to the second shielding plate bodies through the connection portions, and the second shielding plate bodies are arranged between the first shielding plate bodies.

5. The transmission-efficient electrical connector of claim 4, wherein: the thickness of electric connection portion is W1, the thickness of first shield plate body is W2, satisfies the relational expression: W1/W2 is more than or equal to 0.5 and less than or equal to 1.5.

6. The transmission efficient electrical connector of claim 5, wherein: a first gap with a thickness of W3 is formed between the first shielding plate body close to the resistor and the resistor, and a second gap with a thickness of W4 is formed between the second shielding plate body and the first shielding plate body, so that the following relation is satisfied: W2/W3 is more than or equal to 0.3 and less than or equal to 0.55; W3/W4 is more than or equal to 0.4 and less than or equal to 0.75.

7. A transmission efficient electrical connector as recited in any one of claims 1-6, wherein: the electric connection part is provided with a first plane extending along the horizontal direction, the second power supply terminal is provided with a body part and a contact part protruding out of the body part, the resistor is connected to the first plane and the contact part respectively, the contact part is connected to the surface of the resistor and is at the same horizontal height with the first plane, the first grounding terminal, the first power supply terminal and the first signal terminal are installed on a first insulating seat, the second grounding terminal, the second power supply terminal and the second signal terminal are installed on a second insulating seat, the first insulating seat and the second insulating seat are in concave-convex fit, the metal shielding piece is arranged in a space surrounded by the first insulating seat and the second insulating seat, and the first insulating seat is provided with an insulating side plate penetrating through the through hole and surrounding the electric connection part.

8. A transmission efficient electrical connector as recited in any one of claims 1-6, wherein: the first signal terminal with the second signal terminal all has the first extension section, the second extension section and the third extension section that connect gradually, first signal terminal with the second signal terminal increases along the increase of the width of horizontal direction earlier, first ground terminal the second ground terminal first power supply terminal the second power supply terminal first signal terminal with the front end of second signal terminal sets up respectively to the V-arrangement structure, the electricity connection portion is the arc and buckles and penetrates the opening, the cross-section of first power supply terminal is "people" word.

9. A transmission efficient electrical connector as recited in any one of claims 1-6, wherein: the first ground terminal, first power supply terminal and first signal terminal distribute in the downside of metal shield, the quantity of first ground terminal has two at least, the quantity of first signal terminal has six at least, and is adjacent have two at least between the first ground terminal first signal terminal, the second ground terminal the second power supply terminal with second signal terminal distributes in the upside of metal shield, the quantity of second ground terminal has three at least, and is adjacent have two at least between the second ground terminal the second signal terminal.

10. A transmission efficient electrical connector as recited in any one of claims 1-6, wherein: the plug comprises an insulating base and a first metal shell sleeved on the insulating base, the transmission assembly is installed on the insulating base, the tail of the first metal shell is connected with a second metal shell through a fixing buckle, and the second metal shell contains a cable connected to the transmission assembly.