PCIE connector

Abstract

The utility model relates to a PCIE (Peripheral Component Interface Express) connector, which comprises a plastic main body, terminals, a card inserting plate, a slot and a bottom, the terminal is arranged in the plastic main body, and the card inserting plate is electrically connected with the terminal; two sides of the slot are provided with placing grooves, and the placing grooves corresponding to the grounding terminals are provided with open holes. The terminal is additionally provided with a second bending part; a bulge is arranged at the bottom of the plastic main body; two sides of the terminal are provided with barb structures. The beneficial effects of the utility model are that the holes are formed in the placing grooves corresponding to the grounding terminals, so that the signal terminals and the grounding terminals are located in different electromagnetic field environments, and the crosstalk interference of the terminals is reduced; the terminal is additionally provided with the second bending part to disperse the stress of the first contact end, and the distance between the terminal and the card inserting plate is closer, so that the characteristic impedance of the connector is reduced; the barb structures are arranged on the two sides of the terminal in a staggered manner, so that the plastic main body can be prevented from warping; and the bulges at the bottom of the plastic main body are used for spacing the shoulders of the terminals, so that the short circuit phenomenon is avoided, and the performance and the service life of the connector are not influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, more specifically, relate to a PCIE connector. BACKGROUND

[0002] At present, server products have been widely used in the internet industry, financial industry, government departments and other scenes, which benefits from the high performance, high reliability and high stability of server products. As an important slot on the server mainboard, PCIE connector is also the core component of the server high-performance computing capability. PCIE connector is a kind of high-speed, serial, full-duplex, computer expansion bus standard, which uses high-speed differential bus and point-to-point connection mode for communication between two devices. With the wide use of PCIE connector, the requirement for its signal integrity is also getting higher and higher.

[0003] The high-frequency performance of PCIE connector is mainly affected by signal integrity and signal loss. Impedance mismatch on the signal path, crosstalk of adjacent signal lines, power supply noise or ground loop problems make the anti-crosstalk, anti-loss, stability and integrity of the connector cannot be guaranteed.

[0004] In addition, when high-frequency signals pass through the PCIE connector, resonance is easily generated between the ground terminal and the signal terminal, resulting in signal distortion and large resonance, which further reduces the performance of the product. However, the prior art reduces resonance by increasing the ground shielding member, but this method increases the production cost. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is that the product performance of the existing PCIE connector is poor, the production cost is high, and in view of the above defects of the prior art, a PCIE connector is provided.

[0006] The technical scheme adopted by the utility model to solve its technical problem is:

[0007] A PCIE connector is constructed, which comprises a plastic main body, a terminal, a card insertion plate, a slot and a bottom, the terminal is arranged in the plastic main body, the card insertion plate is inserted into the slot and electrically connected with the terminal;

[0008] The slot is provided with a placing groove on both sides, and the terminal is fixedly arranged in the placing groove;

[0009] The terminal comprises a signal terminal and a ground terminal;

[0010] The signal terminal and the ground terminal are arranged in a spaced manner;

[0011] The placing groove of the ground terminal is provided with an opening;

[0012] The terminal further comprises a first contact end, a terminal shoulder and a second contact end, and a plurality of bending portions are arranged between the first contact end and the second contact end;

[0013] The terminal shoulder is arranged between the first contact end and the second contact end, and the bottom is provided with a protrusion and is used for separating the terminal shoulder;

[0014] The first contact end and the second contact end are further provided with a barb structure, and the barb structure is fixedly connected with the plastic main body.

[0015] Further, the opening is arranged between the insertion slot and the bottom, and the shape corresponds to the ground terminal.

[0016] Further, the bending portion comprises a first bending portion, a second bending portion, a third bending portion, a fourth bending portion and a fifth bending portion, the first bending portion, the second bending portion and the third bending portion are arranged on one side close to the first contact end, and the fourth bending portion and the fifth bending portion are arranged on one side close to the second contact end.

[0017] Further, the first contact end is provided with a first included angle, and the first bending portion and the second bending portion constitute the first included angle.

[0018] Further, the terminal shoulder is arranged at the fourth bending portion and is located outside the plastic main body.

[0019] Further, the barb structure is arranged between the third bending portion and the fourth bending portion.

[0020] Further, the barb structure is arranged on both sides of the terminal and is arranged in a staggered manner.

[0021] Further, the protrusion is arranged on the bottom in a spaced manner, and the horizontal height of the protrusion is greater than the horizontal height of the terminal shoulder.

[0022] Further, the plastic main body is provided with a fixing sheet for connecting and fixing with an external device, both ends of the plastic main body are provided with a fixing sheet groove, and the fixing sheet is clamped and fixed in the fixing sheet groove.

[0023] Further, the bottom is provided with a fixing column, the fixing sheet groove is provided with a clamping hole, the fixing sheet is provided with a notch, both sides of the notch are provided with elastic buckles, a fixing hole is arranged below the notch, and the elastic buckles are clamped and fixed with the clamping hole.

[0024] The beneficial effect of the utility model lies in: there is no built-in grounding device in the connector, but a hole is arranged on one side of the placing groove corresponding to the grounding terminal, so that the signal terminal and the grounding terminal are in different electromagnetic field environments, to reduce the crosstalk interference of the terminal and improve the high frequency performance of the connector.

[0025] The second bending part is arranged between the first bending part and the third bending part close to the first contact end, so that the first included angle of the first contact end is increased to disperse the stress of the first contact end and avoid brittle failure of the bending part, thereby affecting the performance of the terminal; when the card plate is inserted, the terminal force arm of the first contact end is closer to the gold fingers of the card plate, so that the characteristic impedance at the terminal force arm of the first contact end is effectively reduced, and the performance of the connector is improved.

[0026] The third bending part and the fourth bending part of the terminal are provided with barb structures, the barb structures are arranged on the two sides of the terminal in an upper and lower manner, and the barb structures are arranged in a staggered manner, so as to disperse the interference stress of the barb structures and the plastic main body, avoid the interference stress of the barb structures and the plastic main body of the terminal from being concentrated in the same place, and prevent the plastic main body from being warped.

[0027] The bottom of the plastic main body is provided with a protrusion for spacing the terminal shoulder part outside the plastic main body, so that the copper wire at the terminal shoulder part after processing is prevented from being connected, the phenomenon of short circuit of the connector is avoided, and the performance and service life of the connector are improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is an exploded view of a PCIE connector in an embodiment of the utility model;

[0029] Figure 2 is Figure 1 is a local enlarged view of E in the figure;

[0030] Figure 3 is Figure 1 is a local enlarged view of F in the figure;

[0031] Figure 4 is a perspective view of a PCIE connector in an embodiment of the utility model;

[0032] Figure 5 is a front view of a PCIE connector in an embodiment of the utility model;

[0033] Figure 6 is a rear view of a PCIE connector in an embodiment of the utility model;

[0034] Figure 7 is Figure 5 is a sectional view of A-A in the figure;

[0035] Figure 8 is a top view of a PCIE connector in an embodiment of the present application;

[0036] Figure 9 is Figure 8 a sectional view at B-B in the figure;

[0037] Figure 10 is Figure 9 a local enlarged view at F in the figure;

[0038] Figure 11 is a left view of a terminal of a PCIE connector in an embodiment of the present application;

[0039] Figure 12 is a perspective view of a terminal of a PCIE connector in an embodiment of the present application;

[0040] Figure 13 is an assembly schematic view of a PCIE connector and a card plate in an embodiment of the present application;

[0041] Figure 14 is Figure 13 a sectional view at C-C in the figure;

[0042] Figure 15 is a perspective view of a terminal of a PCIE connector in another embodiment of the present application;

[0043] Figure 16 is a perspective view of a fixing sheet of a PCIE connector in an embodiment of the present application;

[0044] Figure 17 is Figure 13 a sectional view at D-D in the figure.

[0045] Label explanation: plastic main body 110, slot 111, placing groove 112, opening 113, protrusion 114, fixing sheet groove 115, clamping hole 116, fixing column 117, terminal 120, signal terminal 121, ground terminal 122, first contact end 123, terminal shoulder 124, second contact end 125, bending place 126, first bending place 1261, second bending place 1262, third bending place 1263, fourth bending place 1264, fifth bending place 1265, barb structure 127, card plate 130, bottom 140, fixing sheet 150, notch 151, elastic buckle 152, fixing hole 153, first clamping angle θ. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0047] Please refer to the attached Figures 1-15 The utility model provides a PCIE connector, including plastic main part 110, terminal 120, card inserting plate 130, slot 111 and bottom 140, terminal 120 is located in plastic main part 110, card inserting plate 130 is inserted into slot 111, and is electrically connected with terminal 120;

[0048] The both sides of slot 111 are equipped with placing groove 112, and terminal 120 is fixedly arranged in placing groove 112;

[0049] Terminal 120 includes signal terminal 121 and ground terminal 122;

[0050] Signal terminal 121 and ground terminal 122 are arranged at intervals;

[0051] The placing groove 112 of ground terminal 122 is equipped with opening 113;

[0052] Terminal 120 further includes first contact end 123, terminal shoulder 124 and second contact end 125, and a plurality of bending parts 126 are arranged between first contact end 123 and second contact end 125;

[0053] Terminal shoulder 124 is arranged between first contact end 123 and second contact end 125, bottom 140 is equipped with convex 114, and is used for separating terminal shoulder 124;

[0054] The first contact end 123 and the second contact end 125 are further provided with the barb structure 127, and the barb structure 127 is fixedly connected with the plastic main body 110.

[0055] In the embodiment, the plastic main body 110 is provided with a slot 111 at the top, and the slot 111 is provided with a placing groove 112 at both sides. The terminal 120 includes a signal terminal 121 and a ground terminal 122, and the terminal 120 is arranged in the placing groove 112, and the signal terminal 121 and the ground terminal 122 are arranged in a spaced manner. The placing groove 112 of the ground terminal 122 is provided with an opening 113, and the opening 113 is arranged in a rectangular shape between the top of the plastic main body 110 and the bottom 140. The high-frequency sound insulation degree of the connector is often worse than the low-frequency sound insulation degree, and the too high crosstalk interference will affect the signal integrity and network performance. By opening the opening 113 at the placing groove 112 of the ground terminal 122, the signal terminal 121 and the ground terminal 122 are in different electromagnetic field environments, so as to reduce the crosstalk interference of the terminal 120 and improve the high-frequency performance of the connector. The connector does not need to be provided with a grounding device to solve the resonance problem, thereby reducing the cost of the connector.

[0056] The terminal 120 further includes a first contact end 123, a terminal shoulder 124, and a second contact end 125, and a plurality of bending portions 126 are arranged between the first contact end 123 and the second contact end 125. The bending portion 126 includes a first bending portion 1261, a second bending portion 1262, a third bending portion 1263, a fourth bending portion 1264, and a fifth bending portion 1265. The first bending portion 1261 and the second bending portion 1262 have the same bending direction, and the bending direction of the third bending portion 1263 is opposite to that of the first bending portion 1261 and the second bending portion 1262, that is, the first bending portion 1261 and the second bending portion 1262 are bent towards the side close to the slot 111, and the third bending portion 1263 is bent towards the side away from the slot 111. The second bending portion 1262 is arranged on the side close to the third bending portion 1263, so that the first included angle θ of the first contact end 123 is increased, so as to disperse the stress of the first contact end 123, avoid the brittle failure of the bending portion 126, and affect the performance of the terminal 120. The second bending portion 1262 is arranged between the first bending portion 1261 and the third bending portion 1263, so that the distance between the force arm of the terminal 120 of the first contact end 123 and the gold finger of the card plate 130 is closer, effectively reducing the characteristic impedance at the force arm of the terminal 120 of the first contact end 123, and improving the performance of the connector.

[0057] The terminal 120 is arranged in the placing groove 112 of the plastic main body 110, the terminal shoulder 124 is arranged at the fourth bending portion 1264, and the terminal shoulder 124 and the fourth bending portion 1264 are located outside the plastic main body 110. The bottom 140 of the plastic main body 110 is provided with a protrusion 114 for spacing the terminal shoulder 124. The protrusion 114 is arranged in a spaced manner at the bottom 140 of the plastic main body 110, and the horizontal height of the protrusion 114 is greater than that of the terminal shoulder 124, so as to avoid the connection of the copper wires at the section after the processing of the terminal 120, and cause the short circuit phenomenon of the connector.

[0058] The barb structure 127 is disposed between the third bending portion 1263 and the fourth bending portion 1264 and is disposed on both sides of the terminal 120 in a staggered manner. The barb structure 127 on both sides of the terminal 120 protrudes from the body of the terminal 120. When the terminal 120 is assembled with the plastic body 110, the barb structure 127 on both sides of the terminal 120 is embedded in the placement groove 112 of the plastic body 110, so that the connection between the terminal 120 and the plastic body 110 is more firm. The barb structure 127 is disposed in a staggered manner, which reduces the interference stress between the terminal 120 and the plastic body 110 and avoids the interference stress from concentrating in the same place, thereby preventing the plastic body 110 from being deformed and affecting the service life of the connector.

[0059] When a high-frequency signal passes through the PCIE connector, resonance is easily generated between the grounding terminal 122 and the signal terminal 121, which leads to signal distortion and large resonance, thereby reducing the performance of the product. The prior art reduces resonance by adding a grounding shield, but this increases the production cost.

[0060] Please refer to Figure 1 、 Figures 4-6 The opening 113 is disposed between the insertion groove 111 and the bottom 140 and has a shape corresponding to the grounding terminal 122.

[0061] In specific implementation, the top of the plastic body 110 is provided with the insertion groove 111, the insertion groove 111 is provided with the placement groove 112 on both sides, the terminal 120 is disposed in the placement groove 112, and the terminal 120 includes the signal terminal 121 and the grounding terminal 122. The placement groove 112 of the signal terminal 121 is not provided with the opening 113, the placement groove 112 of the grounding terminal 122 is provided with the opening 113, the opening 113 is mainly disposed between the insertion groove 111 at the top of the plastic body 110 and the bottom 140 and has a shape corresponding to the grounding terminal 122. The opening 113 is disposed in the placement groove 112 of the grounding terminal 122, so that the signal terminal 121 and the grounding terminal 122 are in different electromagnetic field environments, thereby reducing the influence of resonance and reducing the production cost.

[0062] Please refer to Figure 7 、 Figure 11 、 Figure 12 、 Figure 14 and Figure 15 The bending portion 126 includes the first bending portion 1261, the second bending portion 1262, the third bending portion 1263, the fourth bending portion 1264, and the fifth bending portion 1265. The first bending portion 1261, the second bending portion 1262, and the third bending portion 1263 are disposed on the side close to the first contact end 123, and the fourth bending portion 1264 and the fifth bending portion 1265 are disposed on the side close to the second contact end 125.

[0063] In the embodiment, the first bending portion 1261, the second bending portion 1262 and the third bending portion 1263 are arranged on the side close to the first contact end 123. The second bending portion 1262 is added between the first bending portion 1261 and the third bending portion 1263, and the bending directions of the first bending portion 1261 and the second bending portion 1262 are the same, so that the first included angle θ of the first contact end 123 is increased to disperse the stress of the first contact end 123 and avoid brittle failure of the bending portion 126 of the first contact end 123 of the terminal 120; the first included angle θ of the first contact end 123 is increased, so that the force arm of the terminal 120 of the first contact end 123 is closer to the side of the slot 111. When the card insertion plate 130 is inserted, the force arm of the terminal 120 of the first contact end 123 is closer to the gold finger of the card insertion plate 130, so that the characteristic impedance at the force arm of the terminal 120 of the first contact end 123 is reduced and the performance of the connector is improved.

[0064] Please refer to Figure 7 , Figure 11 and Figure 14 , the first contact end 123 is provided with the first included angle θ, and the first bending portion 1261 and the second bending portion 1262 form the first included angle θ.

[0065] In the embodiment, the first contact end 123 is provided with the first included angle θ, and the first included angle θ is formed by the first bending portion 1261 and the second bending portion 1262. If the first included angle θ is too small, the force arm of the terminal 120 of the first contact end 123 is farther away from the gold finger when the card insertion plate 130 is inserted, so that the characteristic impedance of the first contact end 123 is increased. By adding the second bending portion 1262 between the first bending portion 1261 and the third bending portion 1263, and the bending directions of the first bending portion 1261 and the second bending portion 1262 are the same, the first bending portion 1261 and the second bending portion 1262 are bent towards the side close to the slot 111, so that the first included angle θ of the first contact end 123 is increased, the first contact end 123 is closer to the gold finger when the card insertion plate 130 is inserted, the characteristic impedance at the force arm of the terminal 120 of the first contact end 123 is effectively reduced, and the high-frequency performance of the connector is improved. By adjusting the body of the terminal 120 to reduce the characteristic impedance of the connector, the cost of the connector is reduced.

[0066] Please refer to Figure 7 and Figures 10-12 , the terminal shoulder 124 is arranged at the fourth bending portion 1264 and located outside the plastic body 110.

[0067] In the embodiment, the fourth bending portion 1264 and the fifth bending portion 1265 are arranged on one side close to the second contact end 125, the terminal shoulder 124 is arranged on the fourth bending portion 1264, and the terminal shoulder 124 and the fourth bending portion 1264 are both arranged outside the plastic body 110. The bottom 140 of the plastic body 110 is provided with the protrusion 114 for spacing the terminal shoulder 124, so as to avoid the copper wire at the section of the terminal 120 after processing from being connected, thus avoiding the short circuit of the connector and affecting the performance and service life of the connector.

[0068] Please refer to Figures 11-12 , the barb structure 127 is arranged between the third bending portion 1263 and the fourth bending portion 1264.

[0069] In the embodiment, the third bending portion 1263 and the fourth bending portion 1264 of the terminal 120 are provided with the barb structure 127, and the barb structure 127 is arranged in staggered manner. When the barb structure 127 is arranged on both sides of the terminal 120 in symmetrical manner, the interference stress between the barb structure 127 of the terminal 120 and the plastic body 110 is concentrated on the same position, which is easy to cause the plastic body 110 to be warped. The barb structure 127 on both sides of the terminal 120 is arranged in staggered manner, so as to disperse the interference stress between the barb structure 127 and the plastic body 110, effectively avoid the plastic body 110 from being warped, and prolong the service life of the connector.

[0070] Please refer to Figure 12 , the barb structure 127 is arranged on both sides of the terminal 120 in staggered manner.

[0071] In the embodiment, the barb structure 127 is arranged between the third bending portion 1263 and the fourth bending portion 1264, and the barb structure 127 is arranged on both sides of the terminal 120 in staggered manner, so as to disperse the interference stress between the barb structure 127 and the plastic body 110, avoid the interference stress from being concentrated together to cause the plastic body 110 to be deformed. The protruding width of the barb structure 127 on both sides of the terminal 120 is greater than the width of the body of the terminal 120, so that the barb structure 127 on the terminal 120 is extruded with the inner wall of the placement groove 112 during assembly, so that the inner wall of the placement groove 112 is temporarily deformed. When the terminal 120 and the placement groove 112 are assembled in place, the temporarily deformed part of the inner wall of the placement groove 112 is restored, so that the barb structure 127 on the terminal 120 is embedded in the inner wall of the placement groove 112 and is clamped and fixed with the placement groove 112.

[0072] Please refer to Figure 2 and Figure 10 , the protrusions 114 are arranged on the bottom 140 in spaced manner, and the horizontal height of the protrusions 114 is greater than the horizontal height of the terminal shoulder 124.

[0073] In the embodiment, the bottom 140 of the plastic body 110 is provided with a protrusion 114 for spacing the terminal shoulder 124 at the bottom 140 of the plastic body 110 and outside the plastic body 110. The height of the protrusion 114 is greater than that of the terminal shoulder 124, preventing the copper wire at the section of the terminal 120 after processing from being connected, thus avoiding the short circuit of the connector.

[0074] Please refer to Figure 13 and Figure 17 , the plastic body 110 is provided with a fixing sheet 150 for connecting and fixing with external equipment. The two ends of the plastic body 110 are provided with a fixing sheet groove 115, and the fixing sheet 150 is clamped and fixed in the fixing sheet groove 115.

[0075] In the embodiment, the two ends of the plastic body 110 are provided with a fixing sheet 150 for connecting and fixing with external equipment. The two ends of the plastic body 110 are provided with a fixing sheet groove 115, and the two sides of the fixing sheet groove 115 are provided with a clamping hole 116. When the fixing sheet 150 is assembled with the plastic body 110, the two sides of the fixing sheet 150 are provided with elastic buckles 152 which are temporarily deformed by the extrusion of the inner wall of the fixing sheet groove 115. When the fixing sheet 150 abuts against the bottom of the fixing sheet groove 115, the elastic buckles 152 restore the deformation and are clamped and fixed with the clamping hole 116 of the plastic body 110.

[0076] Please refer to Figure 13 , Figure 16 and Figure 17 , the bottom 140 is provided with a fixing column 117, and the fixing sheet groove 115 is provided with a clamping hole 116. The fixing sheet 150 is provided with a notch 151, and the two sides of the notch 151 are provided with elastic buckles 152. The lower part of the notch 151 is provided with a fixing hole 153, and the elastic buckles 152 are clamped and fixed with the clamping hole 116.

[0077] In the embodiment, the clamping holes 116 are arranged symmetrically on both sides of the fixing groove 115 of the plastic body 110. The fixing sheet 150 is L-shaped, and a notch 151 is arranged in the middle of one surface of the fixing sheet 150. Elastic buckles 152 are arranged symmetrically on both sides of the notch 151. A fixing hole 153 is arranged on the other surface of the L-shaped fixing sheet 150, and is below the notch 151. In the assembling process, the fixing sheet 150 is pushed into the fixing groove 115 along the assembling direction. The fixing column 117 arranged on the bottom 140 of the plastic body 110 penetrates the fixing hole 153 on the fixing sheet 150. The elastic buckles 152 on both sides of the fixing sheet 150 are temporarily deformed by the extrusion of the inner wall of the fixing groove 115. When the notch 151 of the fixing sheet 150 abuts against the plastic body, the elastic buckles 152 of the fixing sheet 150 reach the positions of the clamping holes 116 of the plastic body. The elastic buckles 152 are restored to the original shape and are clamped in the clamping holes 116, so that the fixing sheet 150 cannot be separated from the plastic body along the reverse direction of the assembling direction.

[0078] It should be noted that the terms "comprising", "including", or any other variant thereof, are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements not only include those elements, but also include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0079] The above description is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or process transformation, or direct or indirect application in other related technical fields, which is based on the content of the specification and drawings, is also included in the patent protection scope of the present application.

Claims

1. A PCIE connector, characterized by, The utility model relates to a plastic main body, terminal, card inserting plate, slot and bottom, the terminal is located in the plastic main body, the card inserting plate is inserted into the slot, and is electrically connected with the terminal, Both sides of the slot are provided with a placing groove, and the terminal is fixedly arranged in the placing groove; The terminal includes a signal terminal and a ground terminal; The signal terminal and the ground terminal are arranged at intervals; The placing groove of the ground terminal is provided with an opening; The terminal further includes a first contact end, a terminal shoulder and a second contact end, a plurality of bending portions are arranged between the first contact end and the second contact end; The terminal shoulder is arranged between the first contact end and the second contact end, the bottom is provided with a protrusion and is used for separating the terminal shoulder; A barb structure is further arranged between the first contact end and the second contact end, and the barb structure is fixedly connected with the plastic main body.

2. The PCIE connector of claim 1, wherein, The opening is arranged between the slot and the bottom, and the shape of the opening corresponds to the ground terminal.

3. The PCIE connector of claim 1, wherein, The bending portions include a first bending portion, a second bending portion, a third bending portion, a fourth bending portion and a fifth bending portion, the first bending portion, the second bending portion and the third bending portion are arranged on one side close to the first contact end, and the fourth bending portion and the fifth bending portion are arranged on one side close to the second contact end.

4. The PCIE connector of claim 3, wherein, The first contact end is provided with a first included angle, and the first bending portion and the second bending portion form the first included angle.

5. The PCIE connector of claim 4, wherein, The terminal shoulder is arranged at the fourth bending portion and is located outside the plastic main body.

6. The PCIE connector of claim 3, wherein, The barb structure is arranged between the third bending portion and the fourth bending portion.

7. The PCIE connector of claim 6, wherein, The barb structure is arranged on both sides of the terminal and is arranged in a staggered manner.

8. The PCIE connector of claim 1, wherein, The protrusions are arranged at intervals on the bottom, and the horizontal height of the protrusions is greater than the horizontal height of the terminal shoulder.

9. The PCIE connector of claim 8, wherein, The plastic main body is provided with a fixing sheet for connecting and fixing an external device, both ends of the plastic main body are provided with a fixing sheet groove, and the fixing sheet is clamped and fixed in the fixing sheet groove.

10. The PCIE connector of claim 9, wherein, The bottom is provided with a fixing column, the fixing sheet groove is provided with a clamping hole, the fixing sheet is provided with a notch, both sides of the notch are provided with elastic buckles, a fixing hole is arranged below the notch, and the elastic buckles are clamped and fixed with the clamping hole.

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