High speed backplane connector

Abstract

The utility model relates to the field of shielding device on connecting component, specifically relates to high -speed backboard connector. The shielding sheet of the utility model includes sheet body, the edge of sheet body at the plug -in side of connector wafer has the contact structure for with shielding cylinder common contact, the contact structure is the sheet body insertion groove for with the cylinder wall insertion groove set up on the cylinder wall of shielding cylinder and the sheet body vertical engagement. Compared with the way of shielding cylinder and shielding sheet interference insertion, the way of mutual engagement of both in the embodiment makes the reliability of the connection of both greatly improve, and the shielding sheet and shielding cylinder have four contact positions of front and back and left and right at this time, even if high -speed backboard connector uses under the condition of violent vibration, only the separation of contact in one contact position can occur, the rest contact positions can be reliably contacted, which guarantees the reliability of the common contact of shielding sheet and shielding cylinder.

Description

Technical Field

[0001] This utility model relates to the field of shielding devices on connecting components, and specifically to high-speed backplane connectors. Background Technology

[0002] With the development of 5G and 6G technologies, people have increasingly higher demands for the transmission efficiency of modern data communication transmission systems. As the core bridge of data communication, the SI (System Integrity) performance of high-speed backplane connectors directly affects the transmission efficiency of modern data communication transmission systems. Incorporating a shielding structure at the mating end of the female signal terminals of high-speed backplane connectors can effectively reduce crosstalk within the connector's internal circuitry, thereby significantly improving its SI performance to meet the demands of higher transmission rates.

[0003] For example, Chinese invention patent application CN117543286A discloses a female connector chip and a high-speed backplane connector. The female connector chip includes an insulator and a pair of shielding plates mounted on the insulator. Multiple female grounding terminals and female signal terminals are cast within the insulator. The insertion end of the female signal terminal extends out of the insulator, and the insertion end side constitutes the insertion side of the connector chip. The female connector chip also includes a shielding cylinder, which is in common ground contact with the shielding plates. The insertion end of the female signal terminal extends into the shielding cavity of the shielding cylinder to mate with a suitable male signal terminal within the shielding cavity, thus ensuring shielding effectiveness. However, when the shielding plate is connected to the shielding cylinder, an open slot is typically provided on the shielding cylinder, allowing for interference fit between the shielding plate and the open slot. This method relies solely on the two opposing groove walls of the open slot to hold the shielding plate. When the high-speed backplane connector is used under severe vibration, the shielding plate and shielding cylinder may shake, causing the contact portion on one side of the shielding plate to separate from the corresponding groove wall, affecting the reliability of the common ground contact between the shielding plate and the shielding cylinder. Utility Model Content

[0004] The purpose of this invention is to provide a shielding sheet for connector chips to solve the problem that in existing shielding sheet and shielding cylinder insertion connections, the shielding sheet and shielding cylinder will shake and the contact parts will separate under severe vibration, thus affecting the reliability of their common ground contact. The invention also aims to provide a shielding cylinder to solve the problem that in existing shielding sheet and shielding cylinder insertion connections, the shielding sheet and shielding cylinder will shake and the contact parts will separate under severe vibration, thus affecting the reliability of their common ground contact. Furthermore, the invention aims to provide a high-speed backplane connector to solve the problem that in existing shielding sheet and shielding cylinder insertion connections, the shielding sheet and shielding cylinder will shake and the contact parts will separate under severe vibration, thus affecting the reliability of their common ground contact. Finally, the invention aims to provide a signal contact structure to solve the problem that in existing male and female contact insertion connections, the male and female contact parts will shake and the contact parts will separate under severe vibration, thus affecting the reliability of their signal transmission.

[0005] To solve the above-mentioned technical problems, the shielding sheet for connector chips of this utility model includes a sheet body. The edge of the sheet body on the insertion side of the connector chip has a contact structure for contacting the shielding cylinder. The contact structure is a sheet body insertion groove for engaging with a cylinder wall insertion groove provided on the cylinder wall of the shielding cylinder perpendicular to the sheet body.

[0006] Furthermore, the plate fitting groove is a flared groove.

[0007] Furthermore, the outline shape of the interlocking groove of the sheet body is an isosceles trapezoid.

[0008] Furthermore, the width of the bottom of the plate insertion groove is less than the thickness of the shielding cylinder wall, so as to reserve a certain insertion depth.

[0009] Furthermore, the outline shape of the interlocking groove of the plate is triangular; or bowl-shaped; or trumpet-shaped; or right trapezoidal.

[0010] Furthermore, the sheet body is provided with sheet body insertion grooves at the cylinder wall insertion grooves on the two opposite cylinder walls corresponding to the shielding cylinder.

[0011] This utility model proposes an improved technical solution to address the aforementioned technical problems: an insertion groove is provided on the edge of the plate body on the insertion side of the connector chip for engaging with the insertion groove of the shielding cylinder wall. Compared to the interference fit method between the shielding cylinder and the shielding plate, the cross-shaped engagement method in this embodiment significantly improves the connection reliability. Furthermore, the shielding plate and the shielding cylinder have four contact positions (front, back, left, and right), ensuring reliable contact even under severe vibration conditions, thus guaranteeing the reliability of the common ground contact between the shielding plate and the shielding cylinder.

[0012] Another aspect of this utility model provides a shielding cylinder, which includes a square cylinder body. The inner cavity of the square cylinder body is used for the insertion end of the connector chip to pass through. At least one of the cylinder walls of the square cylinder body arranged perpendicular to the shielding plate is provided with a cylinder wall insertion groove that engages with the chip insertion groove on the shielding plate. The cylinder wall insertion groove is a flared groove.

[0013] Furthermore, the outline shape of the cylinder wall insertion groove is an isosceles trapezoidal structure.

[0014] Furthermore, the width of the bottom of the insertion groove on the cylinder wall is less than the thickness of the plate, so as to reserve a certain insertion depth.

[0015] Furthermore, the outline shape of the cylinder wall insertion groove is triangular; or bowl-shaped; or trumpet-shaped; or right-angled trapezoidal.

[0016] Furthermore, the two cylindrical walls of the square cylinder arranged perpendicularly to the sheet are each provided with the cylinder wall insertion groove.

[0017] Furthermore, the two cylindrical walls of the square cylinder arranged perpendicularly to the chip body have two cylinder wall mating grooves, which are used to engage with the chip body mating grooves on the two chips of the connector chip respectively.

[0018] This utility model proposes a novel technical solution to address the aforementioned technical problems: At least one cylindrical wall of the shielding cylinder, arranged perpendicularly to the shielding sheet, is provided with a cylindrical wall insertion groove that engages with the sheet insertion groove on the shielding sheet. This cylindrical wall insertion groove is a flared groove. Compared to the interference fit method between the shielding cylinder and the shielding sheet, the cross-shaped engagement method in this embodiment significantly improves the connection reliability. Furthermore, the shielding sheet and the shielding cylinder have four contact positions (front, back, left, and right), ensuring reliable contact even under severe vibration conditions, thus guaranteeing the reliability of the common ground contact between the shielding sheet and the shielding cylinder.

[0019] Another aspect of this utility model provides a high-speed backplane connector, which includes multiple stacked connector chips, a shielding cylinder, and a base for mounting the shielding cylinder. The connector chip includes an insulator and a shielding sheet mounted on the insulator. A female grounding terminal and a female signal terminal are fixed inside the insulator. The plug end of the female signal terminal extends out of the insulator and the plug end side constitutes the plugging side of the connector chip. The edge of the shielding sheet on the plugging side of the connector chip has a chip body mating groove. The shielding cylinder has a cylinder wall mating groove at one end close to the shielding sheet on the cylinder wall perpendicular to the shielding sheet. At least one of the chip body mating groove and the cylinder wall mating groove is a flared groove. The chip body mating groove and the cylinder wall mating groove interlock with each other. At the interlocking position, the two sides of the chip body in the thickness direction contact the two sides of the cylinder wall mating groove, and the two sides of the cylinder wall in the thickness direction contact the two sides of the chip body mating groove.

[0020] Furthermore, the outline shapes of both the cylinder wall interlocking groove and the sheet interlocking groove are isosceles trapezoids.

[0021] Furthermore, the width of the bottom of the plate insertion groove is less than the thickness of the shielding cylinder wall, and the width of the bottom of the cylinder wall insertion groove is less than the thickness of the plate, so as to reserve a certain insertion depth.

[0022] Furthermore, the outline shape of the cylinder wall insertion groove and / or the sheet insertion groove is triangular; or bowl-shaped; or trumpet-shaped; or right-angled trapezoidal.

[0023] Furthermore, the shape of the cylinder wall insertion groove is the same as the shape of the plate insertion groove, and the thickness of the cylinder wall is equal to the thickness of the plate.

[0024] Furthermore, the two cylindrical walls of the square cylinder arranged perpendicularly to the plate are provided with the cylinder wall insertion groove, and the plate is provided with the plate insertion groove at the corresponding position on the cylinder wall insertion groove.

[0025] Furthermore, the two cylindrical walls of the square cylinder arranged perpendicularly to the chip body have two cylinder wall mating grooves, which are used to engage with the chip body mating grooves on the two chips of the connector chip respectively.

[0026] This invention proposes a novel technical solution to address the aforementioned technical problems. The core concept of this invention is to provide mating slots on the shielding cylinder of the high-speed backplane connector and the shielding plate of the connector chip, allowing them to engage with each other. Compared to the interference fit method of the shielding cylinder and shielding plate, the cross-shaped engagement method in this embodiment significantly improves the connection reliability. Furthermore, the shielding plate and shielding cylinder have four contact positions (front, back, left, and right), ensuring reliable contact even under severe vibration conditions, thus guaranteeing the reliability of the common ground contact between the shielding plate and shielding cylinder.

[0027] Another aspect of this utility model provides a signal contact structure, which includes a male contact and a female contact. The male contact segment of the male contact and the female contact segment of the female contact are arranged perpendicularly to each other. The male contact segment is provided with a male engagement groove, and the female contact segment is provided with a female engagement groove. At least one of the male engagement groove and the female engagement groove is a flared groove. The male engagement groove and the female engagement groove interlock with each other, and at the interlocking position, the two sides of the thickness direction of the female contact segment contact the two sides of the groove wall of the male engagement groove, and the two sides of the thickness direction of the male contact segment contact the two sides of the groove wall of the female engagement groove.

[0028] Furthermore, the outlines of both the male end mating slot and the female end mating slot are isosceles trapezoids.

[0029] Furthermore, the width of the bottom of the male end mating groove is less than the thickness of the female end contact section, and the width of the bottom of the female end mating groove is less than the thickness of the male end contact section, so as to reserve a certain over-insertion depth.

[0030] Furthermore, the outline shape of the male end mating slot and / or the female end mating slot is triangular; or bowl-shaped; or trumpet-shaped; or right-angled trapezoidal.

[0031] This utility model proposes a novel technical solution. The core concept of this utility model is to provide engagement grooves on both the male and female contact sections of the male contact and the female contact, allowing them to mesh with each other. The cross-shaped meshing significantly improves the reliability of the connection. Furthermore, the female and male contact sections have four contact positions (front, back, left, and right), ensuring reliable meshing even under severe vibration, thus guaranteeing reliable signal transmission. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the shielding sheet for connector chips according to the present invention; Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the structure of the shielding cylinder of this utility model; Figure 4 This is a schematic diagram of the insertion of the shielding cylinder and the shielding sheet. Figure 5 This is a schematic diagram of the insertion part when the shielding cylinder and the shielding sheet are inserted; Figure 6 This is a schematic diagram of the connector chip structure; Figure 7 for Figure 6 Side view; Figure 8 This is a schematic diagram of the high-speed backplane connector of this utility model without the base. Figure 9 This is a schematic diagram of the structure of the high-speed backplane connector of this utility model; Figure 10 This is a schematic diagram of the contact segment of a signal contactor according to the present invention.

[0033] In the diagram: 1. Shielding sheet; 11. Sheet mating slot; 111. Slot wall of the sheet mating slot; 12. Edge in the thickness direction of the sheet; 2. Shielding cylinder; 21. Cylinder wall mating slot; 211. Slot wall of the cylinder wall mating slot; 22. Edge in the thickness direction of the cylinder wall; 3. Connector chip; 31. Insulator; 32. Female signal terminal; 4. Metal fixing plate; 5. Conductive positioning plate; 6. Conductive mounting shell; 7. Insulating shell; 8. Through-hole; 9. Male contact section; 91. Male mating slot; 10. Female contact section. Detailed Implementation

[0034] This invention proposes a novel technical solution to address the aforementioned technical problems. The core concept of this invention is to provide mating slots on the shielding cylinder of the high-speed backplane connector and the shielding plate of the connector chip, allowing them to engage with each other. Compared to the interference fit method of the shielding cylinder and shielding plate, the cross-shaped engagement method in this embodiment significantly improves the connection reliability. Furthermore, the shielding plate and shielding cylinder have four contact positions (front, back, left, and right), ensuring reliable contact even under severe vibration conditions, thus guaranteeing the reliability of the common ground contact between the shielding plate and shielding cylinder.

[0035] To clearly illustrate the structure of this embodiment, the following will refer to it as... Figure 9 The vertical direction is used as the vertical direction of the high-speed backplane connector, so as to... Figure 9 The left and right directions are used as the left and right directions of the high-speed backplane connector, in order to Figure 9 The front-back direction is used as the front-back direction of the high-speed backplane connector. It should be noted that it does not represent the actual orientation of the product.

[0036] One specific embodiment of the high-speed backplane connector of this utility model: The high-speed backplane connector of this utility model includes multiple stacked plates, such as... Figure 6 , Figure 7 The connector chip 3 shown is connected to multiple connector chips 3 via, as shown in the figure Figure 9 The metal fixing plates shown are stacked in four layers, and also include the bottom layer such as Figure 8 The shielding cylinder 2 and the base for mounting the shielding cylinder 2 are shown. The base includes a conductive mounting shell 6 on which the mounting position of the shielding cylinder 2 is provided, and a U-shaped insulating shell 7 for mounting the entire bottom portion onto the upper connector chip module. The connector chip 3 includes an insulator 31 and a shielding sheet 1 mounted on the insulator 31. A female ground terminal and a female signal terminal 32 are cast inside the insulator 31. The plug end of the female signal terminal 32 extends out of the insulator 31, and the plug end side constitutes the plug side of the connector chip 3. The shielding cylinder 2 includes, as shown in the figure... Figure 3 The square cylindrical body shown is fitted onto the plug-in terminal of the female signal terminal 32. The shielding plate 1 includes, as shown in the figure... Figure 1 The sheet shown has an edge on the insertion side of the connector chip 3 with a contact structure for grounding contact with the shielding cylinder 2, such as... Figure 2 As shown, the contact structure is a plate insertion groove 11 provided on the plate body, and a wall insertion groove 21 is provided on the wall of the shielding cylinder 2 perpendicular to the plate body and corresponding to the plate insertion groove 11. Both the plate insertion groove 11 and the wall insertion groove 21 are flared grooves, and they interlock with each other. At the interlocking position, the two sides of the plate body in the thickness direction contact the two sides of the wall insertion groove 21, that is, as shown in the figure. Figure 4 As shown, the edge 12 in the thickness direction of the sheet contacts the groove wall 211 of the cylinder wall; the two side edges in the thickness direction of the cylinder wall contact the two side groove walls of the sheet insertion groove 11, that is, as shown... Figure 5 As shown, the edge 22 in the thickness direction of the cylinder wall contacts the groove wall 111 of the plate insertion groove. Compared with the interference fit of the shielding cylinder 2 and the shielding plate 1, the interlocking method of the two in this embodiment greatly improves the reliability of the connection. Moreover, the shielding plate 1 and the shielding cylinder 2 can have four contact positions: front, back, left, and right. Even if the high-speed backplane connector is used under severe vibration, reliable contact can be guaranteed, ensuring the reliability of the common ground contact between the shielding plate 1 and the shielding cylinder 2.

[0037] In this embodiment, as Figure 2 , Figure 3 As shown, the thickness of the sheet is the same as the thickness of the cylinder wall. The sheet insertion groove 11 and the cylinder wall insertion groove 21 are isosceles trapezoids with the same outline shape. The isosceles trapezoidal insertion groove structure is simple and can efficiently achieve interlocking with the other insertion groove, ensuring the reliability of the connection between the shielding sheet 1 and the shielding cylinder 2; at the same time, its two opposing groove walls, which are set at an angle, can serve as guide surfaces to guide the other insertion, ensuring the orderly progress of the insertion process. In this embodiment, the width of the bottom of the sheet insertion groove 11 is less than the thickness of the cylinder wall of the shielding cylinder 2, and the width of the bottom of the cylinder wall insertion groove 21 is less than the thickness of the sheet, so as to reserve a certain insertion depth. Figure 4 , Figure 5As shown, after the shielding plate 1 and the shielding cylinder 2 interlock, a certain over-insertion space 8 is reserved between the bottom of their grooves. This reserved over-insertion depth allows the shielding cylinder and shielding plate to further interlock until the two sides of the plate's thickness direction contact the two sides of the cylinder wall interlocking groove 21, and the two sides of the cylinder wall's thickness direction contact the two sides of the plate interlocking groove 111. The distance between the two cylinder walls of the shielding cylinder 2 arranged parallel to the shielding plate 1 is greater than the distance between the two shielding plates 1 of the connector chip 3. Two cylinder wall interlocking grooves 21 are respectively provided on the two cylinder walls arranged perpendicular to the shielding plate 1 for interlocking with the plate interlocking grooves 11 of the two shielding plates 1 of the connector chip 3. Thus, both shielding plates 1 of the connector chip can simultaneously and reliably interlock with the two cylinder walls of the shielding cylinder 2, ensuring the reliability of the common ground contact between the shielding plates 1 of the connector chip 3 and the shielding cylinder 2.

[0038] This document also provides other different embodiments regarding the plate-body insertion groove and the cylinder-wall insertion groove. In one embodiment, the plate-body insertion groove 11 and the cylinder-wall insertion groove 21 have triangular outlines, with the two groove walls of the triangle expanding outwards in the width direction of the corresponding grooves. When the two are inserted, the two opposite groove walls, which are arranged at an angle, can serve as guide surfaces to guide the insertion of the other. Alternatively, in one embodiment, the plate-body insertion groove 11 and the cylinder-wall insertion groove 21 have bowl-shaped outlines, that is, the outlines of the two opposite groove walls of the corresponding insertion grooves are both arc-shaped, and the center of the arc-shaped groove wall corresponds to the position between the two groove walls. In this way, when inserted, the two opposite groove walls of the arc-shaped grooves can serve as guide surfaces to guide the insertion of the other. Yet another embodiment, the plate-body insertion groove 11 and the cylinder-wall insertion groove 21 have trumpet-shaped outlines, that is, the outlines of the two opposite groove walls of the corresponding insertion grooves are both arc-shaped, and the center of the arc corresponds to the position outside the two groove walls. During insertion, the two opposing arc-shaped groove walls serve as guide surfaces to facilitate insertion. Furthermore, in one embodiment, both the sheet insertion groove 11 and the cylinder wall insertion groove 21 have right-angled trapezoidal outlines. That is, one of their opposing groove walls is vertically arranged, and the other is inclined. During insertion, the inclined groove wall serves as a guide surface to facilitate insertion. All of these groove shapes can be referred to as flared grooves. Of course, in other embodiments, the shape of the sheet insertion groove and the outline shape of the cylinder wall insertion groove can be different; for example, one may be triangular, bowl-shaped, trumpet-shaped, or a right-angled trapezoid, and the other may be another triangular, bowl-shaped, trumpet-shaped, or right-angled trapezoidal shape.

[0039] Of course, regardless of the shape of the plate interlocking groove and the outline of the cylinder wall interlocking groove, it is necessary to ensure that at the interlocking position, the two sides of the plate in the thickness direction are in contact with the two sides of the cylinder wall interlocking groove, and the two sides of the cylinder wall in the thickness direction are in contact with the two sides of the plate interlocking groove.

[0040] In another specific embodiment of the high-speed backplane connector of this utility model, the difference from the above specific embodiment is that the bottom width of the isosceles trapezoidal plate mating groove 11 and the cylindrical wall mating groove 21 is consistent with the thickness of the corresponding shielding cylinder wall and plate, respectively. The shielding plate and the shielding cylinder just engage at the bottom of their mating grooves, and the bottoms of the two mating grooves also fit together.

[0041] In another specific embodiment of the high-speed backplane connector of this utility model, the difference from the above specific embodiment is that the thickness of the cylinder wall is not equal to the thickness of the sheet. It is only necessary to ensure that at the interlocking position, the two sides of the sheet thickness direction contact the two sides of the cylinder wall mating groove, and the two sides of the cylinder wall thickness direction contact the two sides of the sheet mating groove.

[0042] In another specific embodiment of the high-speed backplane connector of this utility model, the difference from the above specific embodiment is that: on the two cylindrical walls of the shielding cylinder 2 arranged perpendicular to the shielding plate 1, only one cylindrical wall mating groove 21 is provided for the same shielding plate 1 of the connector chip 3.

[0043] In another specific embodiment of the high-speed backplane connector of this utility model, the difference from the above specific embodiment is that: only one shielding plate 1 is provided on the connector chip 3, and only one of the two cylindrical walls of the shielding cylinder 2 arranged perpendicular to the shielding plate 1 is provided with a cylindrical wall mating groove.

[0044] In another specific embodiment of the high-speed backplane connector of this utility model, the difference from the above specific embodiment is that: the plate mating groove is a flared groove and the cylinder wall mating groove is a rectangular groove; or the cylinder wall mating groove is a flared groove and the plate mating groove is a rectangular groove.

[0045] Another aspect of this utility model provides a shielding cylinder, which is the same as the shielding cylinder embodiment described above, so it will not be described again here.

[0046] Another aspect of this utility model provides a shielding sheet for connector wafers. Since the shielding sheet is the same as the embodiment of the shielding sheet described above, it will not be described again here.

[0047] Of course, the above-mentioned concept of using the interlocking grooves on the two pieces to ensure the reliability of the connection can also be applied to the connection of the male and female contact components. Therefore, another aspect of this utility model also provides a signal contact structure, which includes a male contact component and a female contact component. The male contact segment 9 of the male contact component and the female contact segment 10 of the female contact component are arranged perpendicularly to each other. The male contact segment 9 is provided with... Figure 10The male end mating groove 91 shown has the same structure as the female end contact section 10 and the male end contact section 9. The female end mating groove (not shown in the figure) is provided on it. Both the male end mating groove 91 and the female end mating groove are flared grooves. The male end mating groove 91 and the female end mating groove interlock with each other. At the interlocking position, the two sides of the thickness direction of the female end contact section 10 are in contact with the two sides of the groove wall of the male end mating groove 91, and the two sides of the thickness direction of the male end contact section 9 are in contact with the two sides of the groove wall of the female end mating groove.

[0048] Since the embodiments of the male end contact groove and the female end contact groove are the same as the embodiments of the sheet body insertion groove and the cylinder wall insertion groove described above, they will not be repeated here.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A high-speed backplane connector, characterized in that: The connector includes multiple stacked connector chips (3), a shielding cylinder (2), and a base for mounting the shielding cylinder (2). The connector chip (3) includes an insulator (31) and a shielding plate (1) mounted on the insulator (31). A female grounding terminal and a female signal terminal (32) are fixed inside the insulator (31). The plug end of the female signal terminal (32) extends out of the insulator (31) and the plug end side constitutes the plug-in side of the connector chip (3). The edge of the shielding plate (1) is located on the plug-in side of the connector chip (3). The shielding cylinder (2) has a plate insertion groove (11) and a cylinder wall insertion groove (21) on the end of the shielding cylinder (1) that is perpendicular to the shielding plate (1). At least one of the plate insertion groove (11) and the cylinder wall insertion groove (21) is a flared groove. The plate insertion groove (11) and the cylinder wall insertion groove (21) interlock with each other. At the interlocking position, the two sides of the plate thickness direction contact the two sides of the cylinder wall insertion groove (21), and the two sides of the cylinder wall thickness direction contact the two sides of the plate insertion groove (11).

2. The high-speed backplane connector according to claim 1, characterized in that: The outlines of the sheet body insertion groove (11) and the cylinder wall insertion groove (21) are both isosceles trapezoids.

3. The high-speed backplane connector according to claim 2, characterized in that: The width of the bottom of the insert groove (11) of the sheet body is less than the thickness of the wall of the shielding cylinder (2), and the width of the bottom of the insert groove (21) of the cylinder wall is less than the thickness of the sheet body, so as to reserve a certain insertion depth.

4. The high-speed backplane connector according to claim 3, characterized in that: The outline shape of the cylinder wall insertion groove (21) and / or the sheet insertion groove (11) is triangular; or bowl-shaped; or trumpet-shaped; or right trapezoidal.

5. The high-speed backplane connector according to any one of claims 1-4, characterized in that: The shape of the cylinder wall insertion groove (21) is the same as that of the sheet insertion groove (11), and the thickness of the cylinder wall is equal to the thickness of the sheet.

6. The high-speed backplane connector according to any one of claims 1-4, characterized in that: The shielding cylinder includes a square cylinder body. The two cylinder walls of the square cylinder body, which are arranged perpendicularly to the plate body, are provided with the cylinder wall insertion groove (21). The plate body is provided with the plate body insertion groove (11) at the corresponding cylinder wall insertion groove (21) on the cylinder wall.

7. The high-speed backplane connector according to claim 6, characterized in that: The two cylindrical walls of the square cylindrical body are arranged perpendicularly to the two plates and have two cylindrical wall mating grooves, which are used to engage with the plate mating grooves (11) on the two plates of the connector chip (3).

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