An interference-resistant connector

Abstract

The application discloses an anti-interference connector, which comprises a terminal assembly, a shielding middle plate arranged between signal terminals and fixed to an insulating body, the insulating body comprises a first insulating piece, a second insulating piece and an outer insulating piece, the signal terminals comprise upper row terminals arranged along the first insulating piece and lower row terminals arranged along the second insulating piece, the shielding middle plate is provided with elastic sheets which respectively pass through the first insulating piece and the second insulating piece and are in contact with the upper row terminals and the lower row terminals, and the shielding middle plate comprises a middle shielding middle plate, a left shielding middle plate and a right shielding middle plate, and a gap is formed between the middle shielding middle plate and the left shielding middle plate and the right shielding middle plate. The upper row terminals and the lower row terminals are separated by the shielding middle plate, the elastic sheets are in contact with the terminals to form layered isolation, the crosstalk in the up-down direction is effectively inhibited, the gap is matched to avoid the shielding middle plate from forming a closed loop to generate eddy current, the secondary interference on the signal is reduced, and the shielding performance is durable and stable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to an anti-interference connector. BACKGROUND

[0002] In modern electronic equipment, the connector is a key component for signal transmission, and its performance directly affects the overall operation stability and reliability of the equipment. With the rapid development of electronic technology, the speed and quality requirements of signal transmission for equipment are becoming higher and higher, however, the problem of signal interference is becoming increasingly prominent. In the field of weak current, when using cables for signal or data transmission, external electromagnetic waves are easy to cause electromagnetic interference to the cables. Even if a magnetic ring is arranged outside the cable to suppress high-frequency interference signals, for a connector with multiple signal lines, the crossing of signal lines will still cause mutual interference.

[0003] According to Chinese patent CN119944376A, an electromagnetic shielding reinforced electrical connector is disclosed. The connector uses the fixed connection part and the electrical connection part of the first ground terminal, the second ground terminal or the power terminal to separate the first high-frequency signal terminal pair, the second high-frequency signal terminal pair and the conventional signal terminal pair, thereby avoiding direct crosstalk. However, this connector only separates the high-frequency signal terminal pair and the conventional signal terminal pair by the ground terminals (first ground terminal and second ground terminal) between the terminals, and achieves basic shielding with two shielding terminals located outside the tongue piece and a single layer metal shell. The connector is insufficient in suppressing crosstalk in the up-down direction, resulting in unsatisfactory shielding effect.

[0004] Therefore, there is a need to develop an anti-interference connector to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide an anti-interference connector with good shielding effect.

[0006] To achieve the above purpose, the present application provides the following technical solution: an anti-interference connector, comprising:

[0007] a terminal assembly comprising an insulating body, a plurality of signal terminals fixed to the insulating body, and a shielding middle plate located between the plurality of signal terminals;

[0008] the insulating body comprises a first insulating piece, a second insulating piece, and an outer insulating piece covering the first insulating piece and the second insulating piece;

[0009] the signal terminals include an upper row of terminals and a lower row of terminals, the upper row of terminals being arranged along the first insulating piece, and the lower row of terminals being arranged along the second insulating piece;

[0010] the shielding middle plate has a plurality of spring pieces, the spring pieces respectively passing through the first insulating piece and the second insulating piece and contacting the upper row of terminals and the lower row of terminals.

[0011] The shielding middle plate comprises a middle shielding middle plate, a left shielding middle plate and a right shielding middle plate located on both sides of the middle shielding middle plate, and a gap is formed between the middle shielding middle plate and the left and right shielding middle plates.

[0012] The first metal shell is annularly arranged outside the tongue plate formed by the insulating body.

[0013] The second metal shell is annularly arranged outside the insulating body and the first metal shell.

[0014] Further, the front end of the shielding middle plate forms a plurality of contact protrusions, the length of the plurality of contact protrusions is greater than the upper row of terminals and the lower row of terminals, and the plurality of contact protrusions pass through and are exposed to the front end surface of the outer wrapping insulating member.

[0015] Further, the two sides of the shielding middle plate and the front end connected thereto are exposed to the side surface and the front end surface of the outer wrapping insulating member.

[0016] Further, the rear end of the shielding middle plate forms a plurality of shielding terminals, the plurality of shielding terminals extend along the lower surface of the first insulating member and the upper surface of the second insulating member, and then penetrate the outer wrapping insulating member.

[0017] Further, the lower surface of the first insulating member forms a first positioning block and a first positioning groove, the upper surface of the second insulating member forms a second positioning block and a second positioning groove, and the first positioning block and the second positioning block pass through the gap and cooperate with the first positioning groove and the second positioning groove.

[0018] Further, the outer wrapping insulating member extends into the gap and covers the first positioning block and the first positioning groove, and the second positioning block and the second positioning groove.

[0019] Further, the first insulating member and the second insulating member are recessed inward from the outer surface to form a matching groove, and the matching groove is in abutment with the first metal shell.

[0020] Further, the outer wrapping insulating member forms a plurality of accommodation grooves, the plurality of accommodation grooves are respectively recessed inward from the upper and lower surfaces of the outer wrapping insulating member to form, and penetrate the surface of the outer wrapping insulating member, and correspond to the matching grooves one by one.

[0021] Further, the rear end of the first metal shell has a plurality of clamping portions, the plurality of clamping portions extend from the rear end of the first metal shell to the direction of the outer wrapping insulating member, enter the accommodation grooves, and then bend into the matching grooves.

[0022] Furthermore, the second metal casing has a plurality of contact portions, which extend into the receiving groove respectively, thereby restricting the position of the first metal casing.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is an anti-interference connector with good shielding effect. The upper and lower rows of terminals are separated by the shielding middle plate, and the contact spring contacts the terminals to form layered isolation, which effectively suppresses crosstalk in the vertical direction. The fit gap facilitates fixing the position of the shielding middle plate, and at the same time, it can avoid the shielding middle plate itself forming a closed loop to generate eddy currents, reduce secondary interference to the signal, and ensure long-term stable shielding performance, which is suitable for high frequency signal transmission. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of an anti-interference connector according to the present invention;

[0026] Figure 2 for Figure 1 The exploded view of the anti-interference connector shown;

[0027] Figure 3 for Figure 2 A partial structural diagram of the terminal assembly of the anti-interference connector shown;

[0028] Figure 4 for Figure 3 Another angle view of the partial structure of the terminal assembly of the anti-interference connector shown;

[0029] Figure 5 for Figure 3 An exploded view of a portion of the terminal assembly of the anti-interference connector shown.

[0030] Figure 6 for Figure 3 A schematic diagram of the first insulating component of the anti-interference connector shown.

[0031] Figure 7 for Figure 6 A schematic diagram of the first insulating component of the anti-interference connector from another angle.

[0032] Figure 8 for Figure 3 The diagram shows the structure of the second insulating component of the anti-interference connector.

[0033] Figure 9 for Figure 8 A schematic diagram of the second insulating component of the anti-interference connector from another angle.

[0034] Figure 10 for Figure 1 A schematic diagram of the shielding middle plate structure of the anti-interference connector shown;

[0035] Figure 11 for Figure 1 A cross-sectional view of the anti-interference connector shown.

[0036] Figure 12 for Figure 1 The diagram shows another angle of the terminal assembly of the anti-interference connector. Detailed Implementation

[0037] To further illustrate the technical means and effects adopted by the present invention to achieve its intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, provides a detailed account of the connector proposed according to the present invention, including its specific implementation, structure, features, and effects. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0039] The specific solution of the anti-interference connector provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Please refer to Figures 1 to 12 The present invention is an anti-interference connector, which includes a terminal assembly 1 and a first metal shell 2 and a second metal shell 3 surrounding the terminal assembly 1. The first metal shell 2 and the second metal shell 3 together with the terminal assembly 1 define a mating space that opens towards the front end for mating the connector (not shown).

[0041] Please refer to Figures 1 to 5 The terminal assembly 1 includes an insulating body 11, a plurality of signal terminals 12 fixed within the insulating body 11, and a shielding plate 13. Specifically, the insulating body 11 includes a first insulating element 111, a second insulating element 112, and an outer insulating element 113. The signal terminals 12 include an upper row of terminals 121 and a lower row of terminals 122. The upper row of terminals 121 is arranged along the first insulating element 111 and is integrally formed with the first insulating element 111. The lower row of terminals 122 is arranged along the second insulating element 112 and is integrally formed with the second insulating element 112.

[0042] Please refer to Figures 6 to 9The first insulating piece 111 comprises a first insulating base 1111 and a first tongue plate 1112 extending forward from the front end face of the first insulating base 1111; the second insulating piece 112 comprises a second insulating base 1121 and a second tongue plate 1122 extending forward from the front end face of the second insulating base 1121; the first insulating base 1111 and the second insulating base 1121 are arranged correspondingly, and the first tongue plate 1112 and the second tongue plate 1122 are arranged correspondingly.

[0043] The first insulating base 1111 and the second insulating base 1121 each have a first hollow area 114 and a second hollow area 115 penetrating the upper and lower surfaces thereof, and the upper row of terminals 121 and the lower row of terminals 122 are exposed to the first hollow area 114 and the second hollow area 115 respectively. Specifically, the first hollow area 114 penetrates the upper and lower surfaces of the first insulating base 1111 and the second insulating base 1121 correspondingly, and the position of the first hollow area 114 is changed according to requirements. Preferably, a plurality of reinforcing ribs 116 are arranged in the first hollow area 114, the reinforcing ribs 116 are connected to the inner wall of the first hollow area 114, and the positions of the upper row of terminals 121 and the lower row of terminals 122 are limited, i.e. the plurality of reinforcing ribs 116 are arranged on both sides of the upper row of terminals 121 and the lower row of terminals 122 respectively. The second hollow area 115 is formed by recessing inwardly from the upper surface of the connection between the first insulating base 1111 and the first tongue plate 1112 and the lower surface of the connection between the second insulating base 1121 and the second tongue plate 1122, and the upper row of terminals 121 and the lower row of terminals 122 pass through and are exposed to the second hollow area 115.

[0044] Further, the first tongue plate 1112 and the second tongue plate 1122 each have a third hollow area 117 formed by recessing inwardly from the opposite face thereof, and the upper row of terminals 121 and the lower row of terminals 122 pass through and are exposed to the third hollow area 117.

[0045] The first insulating base 1111 has a positioning column 1113 extending vertically from the lower surface to the second insulating base 1121, and the second insulating base 1121 has a positioning hole 1123 formed at a corresponding position, the positioning column 1113 extending into the positioning hole 1123 and being clamped and connected therewith. The first tongue plate 1112 has a first positioning block 1114 extending vertically from the lower surface to the second insulating base 1121 and a first positioning groove 1115 recessed inwardly from the lower surface; the second tongue plate 1122 has a second positioning block 1124 and a second positioning groove 1125 formed at corresponding positions, the first positioning block 1114 extending into the second positioning groove 1125 and being clamped and connected therewith, and the second positioning block 1124 extending into the first positioning groove 1115 and being clamped and connected therewith, so that the first insulating part 111 and the second insulating part 112 can be assembled and positioned in advance before the outer insulation part 113 is integrally injection molded.

[0046] The first tongue plate 1112 has a plurality of first implantation grooves 1116 and second implantation grooves 1117 extending from the front end opening along the upper surface to the rear end, the opening end of the first implantation groove 1116 extending outwardly by an end distance for laying the upper row of terminals 121, and the opening end of the second implantation groove 1117 forming a through hole for the upper row of terminals 121 to pass through, the first implantation grooves 1116 and the second implantation grooves 1117 being arranged in staggered intervals; the second tongue plate 1122 has a plurality of third implantation grooves 1126 and fourth implantation grooves 1127 extending from the front end opening along the lower surface to the rear end, the opening end of the third implantation groove 1126 extending outwardly by an end distance for laying the lower row of terminals 122, and the opening end of the fourth implantation groove 1127 forming a through hole for the lower row of terminals 122 to pass through, the third implantation grooves 1126 and the fourth implantation grooves 1127 being arranged in staggered intervals. Preferably, the plurality of first implantation grooves 1116 and the second implantation grooves 1117 all extend into the second air-avoiding area 115 of the first insulating part 111, and the plurality of third implantation grooves 1126 and the fourth implantation grooves 1127 all extend into the second air-avoiding area 115 of the second insulating part 112.

[0047] Further, the lower surface of the first insulating base 1111 extends vertically towards the second insulating base 1121 to form a first connecting protrusion 1118, which has a first communicating groove 1119 extending from the outer end surface along the lower surface, and the first communicating groove 1119 communicates with the first implant groove 1116 and the second implant groove 1117 extending into the second avoiding area 115 through the first avoiding area 114 of the first insulating base 1111. The upper surface of the second insulating base 1121 extends vertically towards the first insulating base 1111 to form a second connecting protrusion 1128, which has a second communicating groove 1129 extending from the outer end surface along the upper surface, and the second communicating groove 1129 communicates with the third implant groove 1126 and the fourth implant groove 1127 extending into the second avoiding area 115 through the first avoiding area 114 of the second insulating base 1121.

[0048] Preferably, the first tongue plate 1112 and the second tongue plate 1122 each has a through hole penetrating the upper and lower surfaces thereof, so as to facilitate the fixation of the outer insulating member 113 to the connection of the two.

[0049] Preferably, the first tongue plate 1112 and the second tongue plate 1122 each has a through hole penetrating the upper and lower surfaces thereof, so as to facilitate the fixation of the outer insulating member 113 to the connection of the two.

[0050] Please refer to Figures 3 to 5 The upper row of terminals 121 is laid in the first communicating groove 1119, passes through the first connecting protrusion 1118, and then passes through the first avoiding area 114 and the second avoiding area 115 of the first insulating base 1111 in sequence, and is arranged along the first implant groove 1116 and the second implant groove 1117. The lower row of terminals 122 is laid in the second communicating groove 1129, passes through the second connecting protrusion 1128, and then passes through the first avoiding area 114 and the second avoiding area 115 of the second insulating base 1121 in sequence, and is arranged along the third implant groove 1126 and the fourth implant groove 1127.

[0051] Specifically, the signal terminals 12 can be a DP (Display Port) socket connector, which is provided with twenty-four signal terminals 12, i.e. twelve upper row terminals 121 and twelve lower row terminals 122. The upper row terminals 121 include first fixed segments 1211 fixed to the first insulating base 1111, first contact segments 1212 extending forward from the first fixed segments 1211 and fixed in the first tongue plates 1112, and first mating segments 1213 extending backward from the first fixed segments 1211 and fixed in the first connecting protrusions 1118. The lower row terminals 122 include second fixed segments 1221 fixed to the second insulating base 1121, second contact segments 1222 extending forward from the second fixed segments 1221 and fixed in the second tongue plates 1122, and second mating segments 1223 extending backward from the second fixed segments 1221 and fixed in the second connecting protrusions 1128.

[0052] Referring to Figure 2 The outer insulation member 113 is integrally formed and fixed to the first and second insulating members 111 and 112, covering other areas of the first and second insulating bases 1111 and 1121 except the first and second tongue plates 1112 and 1122, and covering the left and right side surfaces and the front end surface of the first and second tongue plates 1112 and 1122, and covering the entire area of the first and second connecting protrusions 1118 and 1128. Specifically, the outer insulation member 113 also fills the gap between the first and second insulating members 111 and 112, and fixes the upper and lower row terminals 121 and 122 and the shielding middle plate 13, thereby enhancing the bonding force of the first and second insulating members 111 and 112 and the shielding middle plate 13.

[0053] Preferably, the outer insulation member 113 wraps the front end of the first and second insulating bases 1111 and 1121 to form a plurality of accommodation grooves 1131, which are respectively formed by recessing inward from the upper and lower surfaces of the outer insulation member 113 and pass through the front end of the first and second insulating bases 1111 and 1121 wrapped by the outer insulation member 113, and correspond to the mating grooves 118 one by one.

[0054] Referring to Figure 5 and Figure 10The shielding middle plate 13 is arranged between the first insulating member 111 and the second insulating member 112, and separates the upper row of terminals 121 and the lower row of terminals 122. Specifically, the shielding middle plate 13 is located between the first insulating base 1111 and the second insulating base 1121, and between the first tongue plate 1112 and the second tongue plate 1122. The upper and lower surfaces of the shielding middle plate 13 are attached to the lower surface of the first insulating base 1111 and the upper surface of the second insulating base 1121, and the first positioning block 1114 and the second positioning block 1124 extend through the shielding middle plate 13 and into the first positioning slot 1115 and the second positioning slot 1125. Further, the front end of the shielding middle plate 13 is formed with a plurality of contact protrusions 134, the length of the plurality of contact protrusions 134 is greater than the upper row of terminals 121 and the lower row of terminals 122, and the plurality of contact protrusions 134 pass through and are exposed on the front end surface of the outer wrapping insulating member 113; the rear end of the shielding middle plate 13 is formed with a plurality of shielding terminals 135, the plurality of shielding terminals 135 extend along the lower surface of the first insulating base 1111 and the upper surface of the second insulating base 1121, and further extend through the outer wrapping insulating member 113; the two sides of the shielding middle plate 13 and the front end connected thereto are exposed to the side surface and the front end surface of the outer wrapping insulating member 113.

[0055] Preferably, the shielding middle plate 13 includes a middle shielding middle plate 131, a left shielding middle plate 132 located on one side of the middle shielding middle plate 131, and a right shielding middle plate 133 located on the other side of the middle shielding middle plate 131. There is a gap 136 between the middle shielding middle plate 131 and the left shielding middle plate 132 and the right shielding middle plate 133, the gap 136 extends from the front end of the shielding middle plate 13 to the rear end thereof, and separates the shielding middle plate 13 into the middle shielding middle plate 131, the left shielding middle plate 132, and the right shielding middle plate 133. The first positioning block 1114 and the second positioning block 1124 can pass through the gap 136 and cooperate with the first positioning slot 1115 and the second positioning slot 1125, and the outer wrapping insulating member 113 extends into the gap 136, thereby enhancing the bonding force between the outer wrapping insulating member 113 and the shielding middle plate 13.

[0056] The shielding middle plate 13 has a plurality of stamping-formed elastic pieces 137, the elastic pieces 137 are arranged towards the first insulating member 111 or towards the second insulating member 112, the elastic pieces 137 arranged towards the first insulating member 111 pass through the avoidance holes formed in the corresponding positions of the first insulating member 111 and contact the upper row of terminals 121, and the elastic pieces 137 arranged towards the second insulating member 112 pass through the avoidance holes formed in the corresponding positions of the second insulating member 112 and contact the lower row of terminals 122.

[0057] Please refer to Figure 2 and Figure 12The first metal shell 2 is surrounded by a first metal wall 21 in a ring shape and forms a first accommodating cavity 20 with a hollow and open at both ends, and the terminal assembly 1 is inserted and assembled into the first accommodating cavity 20 from the rear end of the first metal shell 2 to the front end. Specifically, the first metal wall 21 includes a top plate 211 and a bottom plate 212 which are arranged in correspondence with each other in the up-down direction, and two side plates 213 which integrally connect the left and right end edges of the top plate 211 and the bottom plate 212, respectively. The rear end edges of the top plate 211, the bottom plate 212 and the side plates 213 define a limiting portion 214. When the terminal assembly 1 is inserted and assembled into the first accommodating cavity 20 from the rear end of the first metal shell 2 to the front end, the limiting portion 214 of the first metal wall 21 is in abutting contact with the end surface of the outer wrapping insulation 113.

[0058] The top plate 211, the bottom plate 212 and the side plates 213 each have a first elastic contact piece 215 which extends obliquely into or out of the first accommodating cavity 20.

[0059] Preferably, the rear end of the first metal shell 2 has a plurality of clamping portions 216 which extend from the rear end of the first metal shell 2 to the outer wrapping insulation 113, enter the accommodating groove 1131, and then bend into the matching groove 118.

[0060] Please refer to Figure 2 and Figure 11 The second metal shell 3 is a grounding shell which is surrounded by a second metal wall 31 in a ring shape and forms a second accommodating cavity 30 with a hollow and open at both ends, and the terminal assembly 1 and the first metal shell 2 are inserted and assembled into the second accommodating cavity 30 from the rear end of the second metal shell 3 to the front end. The second metal wall 31 includes a first surrounding portion 311 and a second surrounding portion 312. The first surrounding portion 311 surrounds and covers the outer wrapping insulation 113 part of the first insulation base 1111 and the second insulation base 1121, and the second surrounding portion 312 surrounds and is in contact with the first metal shell 2. A part of the plurality of first elastic contact pieces 215 is in contact with the second metal shell 3, and the other part passes through the avoidance hole provided in the second metal shell 3 and extends outwardly and bends.

[0061] The second metal shell 3 has a plurality of contact portions 32 which respectively extend into the accommodating groove 1131 to limit the position of the first metal shell 2.

[0062] The present application is an anti-interference connector which has the characteristics of good shielding effect. The shielding middle plate separates the upper and lower rows of terminals, the elastic pieces contact the terminals to form layered isolation, effectively suppresses the crosstalk in the up-down direction, and cooperates with the gap to fix the position of the shielding middle plate, while avoiding the shielding middle plate itself forming a closed loop to generate eddy current, reducing the secondary interference on the signal, ensuring the durability and stability of the shielding performance, and being suitable for high-frequency signal transmission.

[0063] The above merely provides the preferred embodiment of the present application, and not intended to limit the present application. Accordingly, any modification, equivalent replacement, improvement, etc., made within the principle of the present application shall fall within the protection scope of the present application.

Claims

1. An interference-resistant connector, characterized by, The utility model relates to a terminal assembly (1) comprising an insulating body (11), a plurality of signal terminals (12) fixed to the insulating body (11), and a shielding middle plate (13) located between the plurality of signal terminals (12). The insulating body (11) comprises a first insulating piece (111), a second insulating piece (112), and an outer wrapping insulating piece (113) covering the first insulating piece (111) and the second insulating piece (112). The signal terminals (12) comprise an upper row of terminals (121) arranged along the first insulating piece (111) and a lower row of terminals (122) arranged along the second insulating piece (112). The shielding middle plate (13) has a plurality of elastic pieces (137) respectively penetrating the first insulating piece (111) and the second insulating piece (112) and contacting the upper row of terminals (121) and the lower row of terminals (122). The shielding middle plate (13) comprises a middle shielding middle plate (131), a left shielding middle plate (132) and a right shielding middle plate (133) located on both sides of the middle shielding middle plate (131), and a gap (136) is formed between the middle shielding middle plate (131), the left shielding middle plate (132), and the right shielding middle plate (133), and the outer wrapping insulating piece (113) penetrates into the gap (136). A first metal shell (2) is annularly arranged around the tongue plate formed by the insulating body (11). A second metal shell (3) is annularly arranged around the insulating body (11) and the first metal shell (2). The front end of the shielding middle plate (13) forms a plurality of contact protrusions (134), the length of the plurality of contact protrusions (134) is greater than that of the upper row of terminals (121) and the lower row of terminals (122), and the plurality of contact protrusions (134) penetrate and are exposed on the front end surface of the outer wrapping insulating piece (113).

2. The tamper-resistant connector of claim 1, wherein, The two sides and the front end connected thereto of the shielding middle plate (13) expose the side surface and the front end surface of the outer wrapping insulating piece (113).

3. The interference-resistant connector of claim 2, wherein, The rear end of the shielding middle plate (13) forms a plurality of shielding terminals (135) extending between the lower surface of the first insulating piece (111) and the upper surface of the second insulating piece (112) and penetrating the outer wrapping insulating piece (113).

4. The tamper-resistant connector of claim 2, wherein, The lower surface of the first insulating piece (111) forms a first positioning block (1114) and a first positioning groove (1115), the upper surface of the second insulating piece (112) forms a second positioning block (1124) and a second positioning groove (1125), the first positioning block (1114) and the second positioning block (1124) penetrate the shielding middle plate (13) and cooperate with the first positioning groove (1115) and the second positioning groove (1125).

5. The tamper-resistant connector of claim 1, wherein, The first insulating piece (111) and the second insulating piece (112) are recessed inward from the outer surface to form a matching groove (118), and the matching groove (118) is in abutment with the first metal shell (2).

6. The tamper-resistant connector of claim 1, wherein, ​ 7. The interference-resistant connector of claim 6, wherein, The outer insulation (113) forms a plurality of accommodation grooves (1131), and the plurality of accommodation grooves (1131) are respectively formed by recessing inward from the upper and lower surfaces of the outer insulation (113) and penetrating the surface of the outer insulation (113) and correspond to the matching grooves (118) one by one.

8. The interference-resistant connector of claim 7, wherein, The rear end of the first metal shell (2) has a plurality of clamping portions (216), and the plurality of clamping portions (216) extend from the rear end of the first metal shell (2) to the outer insulation (113), enter the accommodation grooves (1131), and then bend into the matching grooves (118).

9. The interference-resistant connector of claim 8, wherein, The second metal shell (3) has a plurality of contact portions (32), and the plurality of contact portions (32) respectively extend into the accommodation grooves (1131) to limit the position of the first metal shell (2).

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