Straight type connector

Abstract

The invention provides a straight connector, and belongs to the field of connecting devices. The straight type connector comprises a shell, a signal contact component, an insulator and a shielding piece, the shielding piece is cylindrical and comprises a main body part and a connecting part located at one end of the main body part, the insulator and the shell are separated and fixedly arranged in the main body part of the shielding piece, a cavity used for containing the inserting end of the signal contact component is formed in the insulator in a penetrating mode, and the signal contact component is arranged in the cavity. The insulator is used for insulation between the signal contact part and the shielding piece, and the connecting part of the shielding piece penetrates through the shell in the plugging direction of the connector and is fixedly connected with the shell. According to the invention, the shielding piece is arranged to be of a fully-shielded cylindrical structure, the insulator is separated from the shell, and the insulator is fixed in the shielding piece, so that on one hand, a better shielding effect can be obtained, on the other hand, the shell can be conveniently processed in a one-mold multi-cavity mode, and the production efficiency of the shell is improved.

Description

Technical Field

[0001] The invention belongs to the field of connecting devices, and in particular relates to a straight connector. Background Art

[0002] A straight connector generally includes a housing and a terminal module mounted on the housing, each terminal module including an insulator and a conductive terminal fixed in the insulator. The existing Chinese utility model patent with the authorization announcement number CN212849126U discloses a backplane connector, which belongs to a straight connector. The backplane connector includes a housing, the base of the housing is integrally extended with an insulating protrusion (i.e., an insulator), and the conductive terminal is installed in the insulating protrusion.

[0003] The backplane connector also includes a shielding member, the upper portion of which is cylindrical, and the lower portion of which is a C-shaped structure with one side open. The shielding member is sleeved outside the insulating protrusions to provide electromagnetic shielding for the conductive terminals in each insulating protrusion. A C-shaped positioning groove is provided on the base of the housing around the insulating protrusions, and the lower portion of the shielding member is inserted into the positioning groove to ensure the stability of the shielding member.

[0004] In the actual production process, in order to improve the production efficiency of the shell, generally one mold is used to injection mold multiple shells at one time, but this method requires more precise control of the injection pressure and temperature during the injection molding process, otherwise the molding quality of the weak parts on the shell will be poor. The positioning groove weakens the connection strength between the insulating protrusion and the base of the shell, making the connection between the insulating protrusion and the base of the shell relatively weak. Injection molding multiple shells at one time is prone to quality problems. Therefore, in order to ensure the molding quality, it is necessary to minimize the number of shells that can be injection molded by one mold at one time, which seriously affects the production efficiency.

[0005] The lower part of the shield is a C-shaped structure with one side open, so that the insulating protrusion can be connected to the base of the shell as a whole, but the opening will lead to a poor shielding effect. Especially when the signal transmission rate is high, the crosstalk between the conductive terminal pairs transmitting differential signals will be more obvious, and the above-mentioned open structure will have a more serious impact on signal transmission. Therefore, more comprehensive shielding is required to meet the use requirements of high-speed signal transmission. Summary of the invention

[0006] The object of the present invention is to provide a straight connector to solve the technical problems in the prior art that it is difficult to form multiple shells of the straight connector by one mold at a time, resulting in low production efficiency and the technical problem that the shielding part cannot form a comprehensive shield.

[0007] To achieve the above purpose, the technical solution of the straight connector provided by the present invention is: A straight connector includes a shell, a signal contact component, an insulator and a shielding component. The shielding component is cylindrical and includes a main body and a connecting portion located at one end of the main body. The insulator is separated from the shell and is fixedly arranged in the main body of the shielding component. A cavity for accommodating the plug-in end of the signal contact component is provided through the insulator. The insulator is used to insulate between the signal contact component and the shielding component. The connecting portion of the shielding component passes through the shell along the plug-in direction of the connector and is fixedly connected to the shell.

[0008] As a further improvement, the connecting portion of the shielding member is provided with at least two notches for dividing the connecting portion into at least two separate parts, and the housing is provided with a mounting hole or a mounting groove for inserting at least part of the separate parts of the connecting portion and interference fitting therewith.

[0009] As a further improvement, the shielding member is a rectangular cylindrical structure, and notches are provided at each corner of the connecting portion.

[0010] As a further improvement, a protrusion structure is provided on the split body of the connection part for tightly matching with the inner wall of the mounting hole or the mounting groove to enhance the connection strength between the split body of the corresponding connection part and the shell.

[0011] As a further improvement, an assembly hole is provided on the shell for the signal contact component to pass through, the signal contact component includes an insulating positioning body and a contact piece fixed on the insulating positioning body, the insulating positioning body includes an assembly part and a positioning part, the assembly part is inserted into the assembly hole, at least part of the edge of the positioning part protrudes from the assembly part to form a positioning step surface between the positioning part and the assembly part that cooperates with the shell stop.

[0012] As a further improvement, the straight connector also includes a positioning plate, the shell includes a plug-in end for plugging with the adapter connector and a mounting end for mounting on a printed circuit board, the positioning plate is arranged at the mounting end of the shell, and a positioning hole is arranged on the positioning plate corresponding to the assembly hole, and the positioning part is inserted into the positioning hole.

[0013] As a further improvement, the two parallel splits of the connecting part are second splits, the two second splits are located in the positioning hole and are tightly matched with the two opposite hole walls of the positioning hole respectively, the positioning part is located between the two second splits, and the positioning part is tightly matched with the two second splits and the remaining hole walls of the positioning hole.

[0014] As a further improvement, the hole wall of the positioning hole used to cooperate with the connecting part body includes a plane part and a raised part, and the raised part is tightly matched with the corresponding connecting part body.

[0015] As a further improvement, an assembly hole for the signal contact component to pass through is provided on the shell, and the two mutually parallel split bodies of the connecting part are second split bodies. The two second split bodies are located in the assembly hole and are tightly matched with the two side walls opposite to the assembly hole respectively. The signal contact component includes an insulating positioning body and a contact piece fixed on the insulating positioning body. The insulating positioning body is inserted into the assembly hole and is located between the two second split bodies. The insulating positioning body is tightly matched with the two second split bodies and the remaining hole walls of the assembly hole.

[0016] As a further improvement, the straight connector also includes a positioning plate, the shell includes a plug-in end for plugging with the adapter connector and a mounting end for mounting on a printed circuit board, the positioning plate is arranged at the mounting end of the shell, the positioning plate is a conductor and is in contact and conductive with each shielding member.

[0017] As a further improvement, the positioning plate is made of conductive plastic or a plastic plate with a conductive layer on the surface. A grounding plate is provided on the side of the positioning plate away from the shell. The grounding plate is provided with a grounding protrusion for grounding and conducting with the printed circuit board. The grounding plate is conductive to the positioning plate.

[0018] As a further improvement, an adjustment window for adjusting impedance is provided on the shielding member.

[0019] As a further improvement, the shielding member is provided with a deformation window corresponding to the plug-in end of the signal contact component to allow the plug-in end to expand and deform outward, and the insulator is provided with a corresponding window corresponding one-to-one to the deformation window.

[0020] The beneficial effect is that the straight connector provided by the present invention belongs to the invention of the element relationship change type. Compared with the prior art, the straight connector sets the shielding part into a fully shielded cylindrical structure, which can obtain a better shielding effect; at the same time, the insulator is separated from the shell, and the insulator is fixed in the shielding part, which simplifies the structure of the shell, makes the shell suitable for the one-mold-multiple-hole production method, and improves the production efficiency of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall exploded view of the embodiment 1 of the straight connector in the present invention; Figure 2 It is a schematic structural diagram of a shielding member and an insulator in Embodiment 1 of a straight connector in the present invention; Figure 3 An exploded view of a shielding member and an insulator in Example 1 of a straight connector of the present invention; Figure 4 It is a schematic structural diagram of a signal contact component in Embodiment 1 of a straight connector in the present invention; Figure 5 It is a schematic diagram of the partial structure of the housing in Example 1 of the straight connector in the present invention; Figure 6 It is a partial structural schematic diagram of the positioning plate in Example 1 of the straight connector in the present invention; Figure 7 It is a schematic diagram of the partial structure of the grounding plate in Example 1 of the straight connector in the present invention.

[0022] Description of reference numerals: 1. Shell; 11. Base; 12. Side panel; 13. Mounting hole; 14. Assembly hole; 15. Boss; 16. Recess; 17. Mounting slot; 2. Signal contact component; 21. Insulating positioning body; 211. Assembly part; 212. Positioning part; 213. Positioning step surface; 22. Contact piece; 221. Plug-in terminal; 222. Signal fisheye; 3. Insulator; 31. Corresponding window; 4. Shielding piece; 41. Main body; 42. Connecting part; 43. Notch; 44. First sub-body; 45. Second sub-body; 46. Grounding fisheye; 47. Protruding structure; 48. Deformation window; 49. Adjusting window; 5. Positioning plate; 51. Positioning jack; 52. Positioning hole; 521. Protruding part; 522. Plane part; 6. Grounding plate; 61. Opening; 62. Grounding protrusion; 63. Connecting protrusion. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with embodiments.

[0024] In order to solve the problems in the prior art, the basic concept of the present invention is to set the shielding member into a fully shielding cylindrical structure, separate the insulator from the shell, and fix the insulator in the shielding member.

[0025] Specific embodiment 1 of the straight connector provided by the present invention: A straight connector, see attached Figure 1 , including a shell 1, a signal contact component 2, an insulator 3, a shielding member 4, a positioning plate 5 and a grounding plate 6. When in use, the straight connector needs to be installed on a printed circuit board.

[0026] The housing 1 is an insulating shell made of plastic. The housing 1 includes a base 11 and two side panels 12. One end of the base 11 in the thickness direction faces the printed circuit board, and the other end faces away from the printed circuit board. The two side panels 12 are located at the opposite sides of the end of the base 11 facing away from the printed circuit board. The part between the two side panels 12 constitutes an insertion cavity for inserting an adapter connector. The end of the base 11 facing the printed circuit board is the installation end of the housing 1, and the end of the side panel 12 away from the base 11 is the plug-in end of the housing 1.

[0027] See attached Figure 2The shielding member 4 is a rectangular cylindrical structure, including a main body 41 and a connecting portion 42 located at one end of the main body 41 . The main body 41 is located in the insertion cavity, and the connecting portion 42 passes through the base 11 of the shell 1 and is fixedly connected to the base 11 .

[0028] See attached Figure 3 A cavity for accommodating the plug-in end 221 of the signal contact component 2 is provided in the insulator 3 along the plug-in direction. The plug-in direction in the present invention refers to the direction of plugging and unplugging when the straight connector is connected to the adapter connector. The insulator 3 is fixedly arranged in the main body 41 of the shielding member 4. The specific fixing method can be assembly fixing, or it can be integrally connected by gluing or injection molding. Specifically, the assembly fixing form can be an interference fit, or a limiting protrusion protruding inwardly can be machined on the shielding member 4, and a groove 16 that is snap-fitted with the limiting protrusion can be machined on the insulator 3. After the insulator 3 is assembled in the shielding member 4, the limiting protrusion and the groove 16 can be limited and fixed in the plug-in direction.

[0029] The connecting portion 42 of the shielding member 4 is provided with four notches 43 around itself, and the four notches 43 are respectively located at the four corners of the connecting portion 42. The four notches 43 divide the connecting portion 42 of the shielding member 4 into four parts, wherein the two relatively narrow parts are the first part 44, and the two relatively wide parts are the second part 45. The first part 44 is formed with a grounding fisheye 46 for connecting with the printed circuit board. The two side walls of each notch 43, that is, the two ends of each part in the direction around the shielding member 4, are provided with a protruding structure 47, and the protruding structure 47 has a semicircular, trapezoidal or other shapes. During the assembly process, the protruding structure 47 is in close contact with the corresponding hole walls on the housing 1 and the positioning plate 5, and is embedded into the corresponding hole walls by squeezing the hole walls to deform the hole walls, thereby ensuring the stability and reliability of the shielding member 4.

[0030] See attached Figure 5 Two mounting holes 13 are provided on the housing 1 at positions corresponding to each shielding member 4, and an assembly hole 14 is provided between the two mounting holes 13. The two first sub-bodies 44 of the connecting portion 42 are respectively inserted into the two mounting holes 13, and the two second sub-bodies 45 of the connecting portion 42 are both inserted into the assembly holes 14, and the two second sub-bodies 45 are tightly matched with the opposite side walls of the assembly holes 14. The assembly holes 14 are used for the second sub-bodies 45 to pass through the housing 1 and be assembled with the housing 1, and for the signal contact component 2 to pass through.

[0031] See attached Figure 4The signal contact component 2 includes an insulating positioning body 21 and a contact piece 22 fixed on the insulating positioning body 21. The contact piece 22 is used to transmit differential signals. The insulating positioning body 21 and the contact piece 22 are connected by integral injection molding. The insulating positioning body 21 includes an assembly portion 211 and a positioning portion 212, wherein the assembly portion 211 is inserted into the assembly hole 14 from the mounting end of the housing 1, and a portion of the edge of the positioning portion 212 protrudes from the assembly portion 211, so that a positioning step surface 213 is formed between the positioning portion 212 and the assembly portion 211 to block and cooperate with the housing 1 in the plug-in and pull-out direction of the adapter connector.

[0032] Both side walls of the assembly hole 14 that are not matched with the second split body 45 are provided with bosses 15, and grooves 16 are provided on the surface of the bosses 15, so that the bosses 15 are C-shaped as a whole, and mounting grooves 17 are formed between the bosses 15 and the side walls of the assembly hole 14 that are used to match with the second split body 45, so that the second split body 45 can be assembled reliably. The shape of the assembly portion 211 is adapted to the shape of the space surrounded by the two bosses 15 and the second split body 45, and the assembly portion 211 is tightly matched with the bosses 15 and the second split body 45.

[0033] The positioning plate 5 is located at the mounting end of the housing 1. An embedding groove is provided on the end surface of the mounting end of the housing 1. The positioning plate 5 is embedded in the embedding groove. After the signal contact component 2 is assembled, the positioning plate 5 is assembled to the housing 1. Figure 6 The positioning plate 5 is provided with two positioning holes 51 and a positioning hole 52 between the two positioning holes 51 corresponding to each shielding member 4. The two first split bodies 44 on the shielding member 4 respectively pass through the two positioning holes 51 and are tightly matched with the hole walls of the positioning holes 51. The two second split bodies 45 on the shielding member 4 both pass through the positioning holes 52, and the two second split bodies 45 are tightly matched with the opposite side walls of the positioning holes 52. The positioning portion 212 on the insulating positioning body 21 is inserted into the positioning hole 52 and is tightly matched with the other two side walls of the positioning hole 52 and the two second split bodies 45.

[0034] The positioning plate 5 can stabilize the shielding parts 4 and the signal contact part 2. In this embodiment, the positioning plate 5 is a conductor, so it can also play the role of electromagnetic shielding. The positioning plate 5 can be a metal conductor, or a conductive plastic, or a plastic plate with a conductive layer on the surface. For the convenience of assembly, a plastic plate with a conductive layer on the surface is selected as the positioning plate 5 in this embodiment, and the conductive layer can be processed by electroplating or spraying.

[0035] The positioning plate 5 is in contact and conduction with each shielding component 4, so after the positioning plate 5 is grounded, the common ground of each shielding component 4 can be achieved, and the positioning plate 5 itself can play the role of electromagnetic shielding, further improving the shielding effect. The side wall of the positioning hole 52 that cooperates with the second split 45 includes a flat portion 522 and a raised portion 521, wherein the raised portion 521 is tightly matched with the corresponding second split 45, and the raised portion 521 can be a convex strip or a convex point. During the assembly process, the raised portion 521 is more easily deformed by pressure, so that it can maintain better conductive contact with the second split 45, and it can also avoid large friction during installation, which is convenient for assembly.

[0036] The positioning plate 5 can directly contact the grounding conductor on the printed circuit board to achieve grounding, but the conductive effect of direct contact is not good, so a protruding structure can be provided on the positioning plate 5 to contact the grounding conductor. In order to further improve the grounding effect, a grounding sheet 6 can be provided on the side of the positioning plate 5 away from the housing 1. The grounding sheet 6 is a metal sheet, and the grounding sheet 6 is used to achieve electrical connection between the positioning plate 5 and the grounding conductor.

[0037] See attached Figure 7 , the grounding plate 6 is provided with an opening 61 for the signal contact component 2 and the shielding component 4 to pass through, and the grounding plate 6 is provided with a grounding protrusion 62 on the side facing the printed circuit board. Specifically, the grounding protrusion 62 is a spring claw, which realizes elastic contact with the grounding conductor on the printed circuit board and improves the reliability of grounding. In other embodiments, the grounding protrusion 62 can also be a non-elastic structure. The grounding plate 6 is provided with a connecting protrusion 63 on the side facing the positioning plate 5, and a connecting jack is provided on the positioning plate 5 corresponding to the connecting protrusion 63. The connecting protrusion 63 is plugged into the connecting jack to realize the mechanical and electrical connection between the positioning plate 5 and the grounding plate 6. In other embodiments, the positioning plate 5 and the grounding plate 6 can be formed into an integral structure by integral injection molding.

[0038] Both ends of the contact piece 22 of the signal contact component 2 expose the insulating positioning body 21, wherein the end of the contact piece 22 extending into the insulator 3 is a double spring sheet structure, and the pin on the adapter connector can be inserted between the double spring sheets to achieve a conductive connection, and the double spring sheets constitute the plug-in end 221 of the signal contact component 2. During the plug-in process, the double spring sheets will be squeezed outward by the pin. The other end of the contact piece 22 is formed with a signal fisheye 222 for installation on a printed circuit board. A deformation window 48 is provided on the shielding member 4 corresponding to the plug-in end 221 of the signal contact component 2 to reduce the resistance of the plug-in end 221 to deform outward. A corresponding window 31 is provided on the insulator 3 corresponding to the deformation window 48 to reduce the deformation resistance of the plug-in end 221 of the signal contact component 2.

[0039] The shielding member 4 is also provided with an adjustment window 49 for adjusting impedance, and the adjustment window 49 is located on the side of the deformation window 48 close to the base 11 of the housing 1. The shielding member 4 is formed by rolling a metal sheet, and a dovetail groove structure is provided at the rolled joint to enable the two sides to be riveted and engaged with each other. The adjustment window 49 and the deformation window 48 are both provided on the side of the shielding member 4 away from the joint.

[0040] The assembly process of the straight connector is as follows: first, the insulator 3 and the shielding member 4 are fixed together, and then the integral component formed by the insulator 3 and the shielding member 4 is assembled to the housing 1 from the plug-in end of the housing 1, and then the signal contact component 2 is assembled to the housing 1 from the plug-in end of the housing 1, and then the positioning plate 5 and the grounding plate 6 are assembled in sequence. After all are assembled, the straight connector can be installed on the printed circuit board. For the convenience of assembly, both ends of the positioning hole 52 and the mounting hole 13 are provided with chamfers, both ends of the insulating positioning body 21 of the signal contact component 2 are also provided with chamfers, and the mouths of each hole on the positioning plate 5 are provided with chamfers.

[0041] The straight connector separates the insulator 3 from the shell 1, thereby making the structure of the shell 1 simpler and reducing the weak parts on the shell 1. Therefore, the number of shells 1 that can be injection molded by one mold can be increased. In the actual production process, 32 cavities in one mold can be achieved, which is difficult to achieve with 4 cavities in one mold in the prior art. Therefore, the production efficiency is greatly improved.

[0042] Moreover, the shielding member 4 of the straight connector adopts an all-round shielding design, which greatly enhances the shielding effect and is conducive to the transmission of high-speed signals. Moreover, after the notch 43 is provided on the connecting portion 42 of the shielding member 4 of the straight connector, the contact area between the connecting portion 42 and the housing 1 can be increased, ensuring a high connection strength between the shielding member 4 and the housing 1, and ensuring a high service life of the straight connector.

[0043] Moreover, the second split body 45 on the shielding member 4 on the shell 1 and the insulating positioning body 21 on the signal contact component 2 share an assembly hole 14, and the second split body 45 on the shielding member 4 on the positioning plate 5 and the insulating positioning body 21 on the signal contact component 2 share a positioning hole 52, which can make the structure of the straight connector compact and facilitate miniaturization.

[0044] Specific embodiment 2 of the straight connector provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that no notch is provided on the shielding member in this embodiment, and therefore through holes for the shielding member to pass through are provided on the shell, the positioning plate and the grounding plate, wherein the hole walls of the through holes on the shell and the positioning plate are in close contact with the shielding member, thereby fixing the shielding member.

[0045] The shielding member in this embodiment is not provided with notches, and its electromagnetic shielding capability is stronger.

[0046] The signal contact component in this embodiment needs to be assembled into the shielding component first, so that the signal contact component, the shielding component and the insulator form an integral component, and then the integral component is assembled onto the housing.

[0047] In other implementations of this embodiment, the insulating positioning body and the insulator of the signal contact component can be integrally injection molded, thereby reducing the number of parts. The signal contact component, the insulator and the shielding member can all be integrally injection molded, further reducing the number of parts and improving assembly efficiency.

[0048] Specific embodiment 3 of the straight connector provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the shielding member and the housing in this embodiment are fixedly connected by integral injection molding.

[0049] Specific embodiment 4 of the straight connector provided by the present invention: This embodiment is based on Embodiment 1, and differs from Embodiment 1 in that the shielding member in this embodiment is a cylindrical structure, and two notches are provided, dividing the connecting portion of the shielding member into two semicircular parts.

[0050] In this embodiment, two through holes are provided on the shell, the positioning plate and the grounding plate for the two separate parts of the connecting portion of the shielding member to pass through respectively. The through holes are arc-shaped holes whose shapes are adapted to the separate parts, and the hole walls of the through holes on the shell and the positioning plate are in close contact with the shielding member, thereby fixing the shielding member.

[0051] In this embodiment, the assembly hole on the housing for mounting the signal contact component is located between the two through holes on the housing, and the positioning hole on the positioning plate for aligning the signal contact component is located between the two through holes on the positioning plate.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A straight connector, characterized in that: The invention comprises a shell (1), a signal contact component (2), an insulator (3) and a shielding component (4); the shielding component (4) is cylindrical and comprises a main body (41) and a connecting portion (42) located at one end of the main body (41); the insulator (3) is separate from the shell (1) and is fixedly arranged in the main body (41) of the shielding component (4); a cavity for accommodating a plug-in end (221) of the signal contact component (2) is provided through the insulator (3); the insulator (3) is used for insulating between the signal contact component (2) and the shielding component (4); and the connecting portion (42) of the shielding component (4) passes through the shell (1) along the plug-in and unplugging direction of the connector and is fixedly connected to the shell (1).

2. The straight connector according to claim 1, characterized in that: The connecting portion (42) of the shielding member (4) is provided with at least two notches (43) for dividing the connecting portion (42) into at least two parts, and the housing (1) is provided with a mounting hole (13) or a mounting groove (17) for inserting at least part of the parts of the connecting portion (42) into an interference fit.

3. The straight connector according to claim 2, characterized in that: The shielding member (4) is a rectangular cylindrical structure, and notches (43) are provided at each corner of the connecting portion (42).

4. The straight connector according to claim 2 or 3, characterized in that: The split body of the connection part (42) is provided with a protruding structure (47) for tightly matching with the inner wall of the mounting hole (13) or the mounting groove (17) to enhance the connection strength between the split body of the corresponding connection part (42) and the housing (1).

5. The straight connector according to claim 2 or 3, characterized in that: The housing (1) is provided with an assembly hole (14) for the signal contact component (2) to pass through. The signal contact component (2) comprises an insulating positioning body (21) and a contact piece (22) fixed on the insulating positioning body (21). The insulating positioning body (21) comprises an assembly portion (211) and a positioning portion (212). The assembly portion (211) is inserted into the assembly hole (14). At least part of the edge of the positioning portion (212) protrudes from the assembly portion (211) to form a positioning step surface (213) between the positioning portion (212) and the assembly portion (211) that is matched with the housing (1) for blocking.

6. The straight connector according to claim 5, characterized in that: The straight connector further comprises a positioning plate (5); the housing (1) comprises a mating end for mating with a matching connector and a mounting end for mounting on a printed circuit board; the positioning plate (5) is arranged at the mounting end of the housing (1); a positioning hole (52) is arranged on the positioning plate (5) corresponding to the assembly hole (14); and the positioning portion (212) is inserted into the positioning hole (52).

7. The straight connector according to claim 6, characterized in that: The two parallel sub-bodies of the connecting portion (42) are second sub-bodies (45). The two second sub-bodies (45) are located in the positioning hole (52) and are respectively tightly matched with two opposite hole walls of the positioning hole (52). The positioning portion (212) is located between the two second sub-bodies (45). The positioning portion (212) is tightly matched with the two second sub-bodies (45) and the remaining hole walls of the positioning hole (52).

8. The straight connector according to claim 7, characterized in that: The hole wall of the positioning hole (52) used for separately cooperating with the connecting portion (42) comprises a plane portion (522) and a raised portion (521), and the raised portion (521) is tightly matched with the corresponding connecting portion (42) separately.

9. The straight connector according to claim 2 or 3, characterized in that: The housing (1) is provided with an assembly hole (14) for the signal contact component (2) to pass through; the two mutually parallel split bodies of the connecting portion (42) are second split bodies (45); the two second split bodies (45) are located in the assembly hole (14) and are respectively tightly matched with two opposite side walls of the assembly hole (14); the signal contact component (2) comprises an insulating positioning body (21) and a contact piece (22) fixed on the insulating positioning body (21); the insulating positioning body (21) is inserted into the assembly hole (14) and is located between the two second split bodies (45); the insulating positioning body (21) is tightly matched with the two second split bodies (45) and the remaining hole walls of the assembly hole (14).

10. The straight connector according to any one of claims 1 to 3, characterized in that: The straight connector further comprises a positioning plate (5); the housing (1) comprises a mating end for mating with a matching connector and a mounting end for mounting on a printed circuit board; the positioning plate (5) is arranged at the mounting end of the housing (1); the positioning plate (5) is a conductor and is in contact and conduction with each shielding member (4).

11. The straight connector according to claim 10, characterized in that: The positioning plate (5) is a conductive plastic plate or a plastic plate with a conductive layer on its surface. A grounding plate (6) is provided on a side of the positioning plate (5) away from the housing (1). A grounding protrusion (62) is provided on the grounding plate (6) for connecting to the printed circuit board for grounding. The grounding plate (6) is connected to the positioning plate (5).

12. The straight connector according to any one of claims 1 to 3, characterized in that: An adjustment window (49) for adjusting impedance is provided on the shielding member (4).

13. The straight connector according to any one of claims 1 to 3, characterized in that: The shielding member (4) is provided with a deformation window (48) corresponding to the plug-in end (221) of the signal contact component (2) so as to allow the plug-in end (221) to expand and deform outward, and the insulator (3) is provided with a corresponding window (31) corresponding one-to-one to the deformation window (48).

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