Clamping plate type Gen-Z extensible connector

Abstract

The utility model relates to the field of electric connectors, and provides a clamping plate type Gen-Z extensible connector. Comprising a plastic shell, four installation cavities are formed in the plastic shell in the length direction of the plastic shell, fixed installation structures are arranged at the two ends of the plastic shell in the length direction respectively, clamping plate guide structures are arranged at the bottoms between the adjacent installation cavities respectively, and a core unit is installed in each installation cavity. Four assembled core body units are installed in a plastic shell, guide structures are arranged between the four side faces of each core body unit and an installation cavity of the plastic shell, the front side face and the rear side face of each core body unit and the plastic shell are locked through locking structures, and the connection stability in the installation process is ensured; stable positioning installation and locking are formed between the plastic shell and the printed circuit board through the fixed installation structure and the clamping plate guiding structure, and the stability of signal transmission after installation is further ensured.

Description

Technical Field

[0001] The utility model relates to the field of electrical connectors, in particular to a clamping plate type Gen-Z expandable connector. Background Art

[0002] In the PCIe 5.0 specification officially released by PCI-SIG, the transmission speed is 32.0GT / s, which is twice that of PCIe 4.0. With the improvement of transmission performance, PCIe plays a more important role in applications such as consumer products, servers, or industrial fields. There is no doubt that the increase in transmission speed has also become a technical threshold for connectors. In addition to increasing the transmission bandwidth, connectors are also constantly shrinking their appearance, increasing density, and focusing on integrating the needs of all parties. Server is one of the important areas in high-frequency applications. With the advent of the PCIe 5.0 era, connectors such as Gen-Z, MCIO and SAS have become more important.

[0003] Gen-Z connectors have many application scenarios, including memory, storage, I / O, cables, etc. The Gen-Z scalable connector specification provides additional features beyond SFF-TA-1002, enabling solutions to fully utilize the potential of the connector, including support for 48V applications to improve power efficiency and reduce OPEX, support for new high-power solutions (12V up to 660W and 48V up to 1024), and new internal cable support. So, Gen-Z includes SF-TA-1002 and provides higher power support.

[0004] During the installation of the Gen-Z connector on the printed circuit board, after going through processes such as wave soldering, the plastic shell and plastic body are prone to heat deformation and improper installation during the assembly process, resulting in poor terminal positioning, and ultimately data transmission failure due to insufficient reliable contact of the connector terminals. Summary of the invention

[0005] In order to meet the requirements of the development and use scenarios of the Gen-Z connector and ensure the stability of data transmission, the utility model provides a splint-type Gen-Z expandable connector.

[0006] The technical solution adopted by the utility model is:

[0007] A splint-type Gen-Z expandable connector comprises a plastic shell, wherein four installation cavities are arranged in the plastic shell along the length direction thereof, fixed installation structures are arranged at both ends of the length direction of the plastic shell, and splint guide structures are arranged at the bottom positions between adjacent installation cavities, and a core unit is installed in each of the installation cavities, and the core unit comprises a pair of split plastics and terminals, a row of terminals distributed at equal intervals are respectively installed in the pair of split plastics, and the terminals in the pair of split plastics are arranged correspondingly, and the pair of split plastics are assembled to form a plastic body of the core unit, and guide blocks are respectively arranged on both sides of the front and rear sides of the plastic body, and guide grooves corresponding to the guide blocks are arranged on the inner side surfaces of each installation cavity of the plastic shell, and one end of the guide groove passes through the plastic shell; at least two locking protrusions are respectively arranged on the front and rear sides of the plastic body, and a locking groove cooperating with the locking protrusions is arranged in the plastic shell.

[0008] Furthermore, a pair of split plastics are connected into a whole through a mortise and tenon structure.

[0009] Furthermore, the split plastic connection method is a dovetail groove connection structure or a T-slot connection structure.

[0010] Furthermore, both sides of the plastic body in the length direction are respectively provided with limiting grooves, and corresponding positions of the installation cavity of the plastic shell are provided with limiting convex strips matching with the limiting grooves.

[0011] Furthermore, a board groove matching with the edge of the printed circuit board is provided in the middle of the fixed installation structure, a nut installation portion is provided on one side of the board groove, and a countersunk hole portion is provided on the other side of the board groove.

[0012] Furthermore, the clamping plate guiding structure includes a pair of clamping parts, a board groove cooperating with the printed circuit board is provided between the pair of clamping parts, the opposite surfaces of the pair of clamping parts are respectively fitted with two sides of the printed circuit board, and a positioning rib is provided between the pair of clamping parts, and the positioning rib cooperates with the positioning groove on the printed circuit board.

[0013] Furthermore, the opening end of the guide groove is a trumpet-shaped opening.

[0014] Furthermore, the front end of the locking groove and the front end of the locking protrusion are respectively provided with guide slopes.

[0015] After adopting the above technical scheme, the beneficial effects of the utility model are:

[0016] Four assembled core units are installed inside the plastic shell, and guide structures are provided between the four sides of the core unit and the installation cavity of the plastic shell. The front and rear sides of the core unit are locked to the plastic shell through a locking structure to ensure the stability of the connection during the installation process; the plastic shell forms a stable positioning installation and locking with the printed circuit board through the fixed installation structure and the clamping plate guide structure to further ensure the stability of signal transmission after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the core unit.

[0019] Figure 3 This is a bottom view of the core unit.

[0020] Figure 4 It is a schematic diagram of the structure of the plastic shell.

[0021] In the figure: plastic shell 1, installation cavity 11, guide groove 12, limiting convex strip 13, locking groove 14, core unit 2, embedded injection molded part 21, T-slot 22, terminal 23, guide block 24, limiting groove 25, locking convex block 26, fixed installation structure 3, nut installation part 31, countersunk hole part 32, clamping plate guide structure 4, clamping part 41, positioning rib 42. DETAILED DESCRIPTION

[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0023] like Figure 1 As shown, a clamp-type Gen-Z expandable connector consists of a plastic housing 1 and four core units 2 installed in the plastic housing.

[0024] like Figure 4 As shown, four installation cavities 11 are provided in the plastic housing 1 along its length direction, and core units 2 are installed in the four installation cavities 11 respectively. The core unit 2 is used for electrical connection between the printed circuit board and the memory chip. Fixed installation structures 3 are provided at both ends of the length direction of the plastic housing 1, and the fixed installation structures 3 are used for fixing with the printed circuit board. Clamp guide structures 4 are provided at the bottom positions between adjacent installation cavities 11, and the clamp guide structures 4 are used for positioning and installing with the printed circuit board.

[0025] like Figure 2-3As shown, the four core units 2 include two core units with 14 pairs of terminals and two core units with 28 pairs of terminals. Each core unit 2 is composed of a pair of embedded injection molded parts 21, and the embedded injection molded parts are formed by injection molding a whole row of metal terminals in a mold to form an integrated part of plastic and metal terminals. The terminals of a pair of embedded injection molded parts 21 are arranged correspondingly, and the opposite surfaces of a pair of embedded injection molded parts are connected and assembled into a core unit. A pair of embedded injection molded parts are fixedly installed by a mortise and tenon structure, generally using a T-slot 22 connection method or a dovetail groove connection method. The two ends of the terminal 23 of the core unit extend from the upper and lower sides of its plastic body, the upper terminal is used for contact and conduction with the storage chip, and the lower terminal is used for welding and conduction with the contact on the printed circuit board. Thereby achieving conduction transmission between the printed circuit board and the storage chip.

[0026] In order to ensure the stability of the installation of the core unit in the plastic body and the accuracy of the position, guide blocks 24 are respectively provided on both sides of the front and rear sides of the plastic body of each core unit, and guide grooves 12 corresponding to the guide blocks are provided on the inner side of each installation cavity of the plastic shell, one end of the guide groove 12 passes through the plastic shell, and the open end of the guide groove is a trumpet-shaped opening. At the same time, limiting grooves 25 are respectively provided on both sides of the length direction of the plastic body, and limiting convex strips 13 cooperating with the limiting grooves 25 are provided at the corresponding position of the installation cavity of the plastic shell 1. Guides are set between the four sides of the core unit and the installation cavity of the plastic shell to ensure the accuracy of the installation position.

[0027] At least two locking protrusions 26 are respectively provided on the front and rear sides of the plastic body, and a locking groove 14 cooperating with the locking protrusion 26 is provided in the plastic shell. The front end of the locking groove 14 and the front end of the locking protrusion are respectively provided with guide slopes for easy installation. By utilizing the cooperation between the locking protrusion 26 and the locking groove 14, the core unit 2 can be reliably installed in the plastic shell 1.

[0028] like Figure 4 As shown, each clamping plate guide structure 4 includes a pair of clamping parts 41, a plate groove matching with the printed circuit board is provided between the pair of clamping parts 41, the opposite surfaces of the pair of clamping parts 41 are respectively fitted with the two sides of the printed circuit board, and a positioning rib 42 is provided between the pair of clamping parts, and the positioning rib 42 matches with the positioning groove on the printed circuit board.

[0029] A board groove that matches the edge of the printed circuit board is provided in the middle of the fixed mounting structure 3, and a nut mounting portion 31 is provided on the fixed mounting structure on one side of the board groove, and a nut is fixedly installed in the nut mounting portion, and a countersunk hole portion 32 is provided on the fixed mounting structure on the other side of the board groove, and a screw is installed in the countersunk hole portion. The screw passes through the printed circuit board and is locked with the nut to realize the fixed installation of the connector.

Claims

1. A splint-type Gen-Z scalable connector, characterized in that: It includes a plastic shell, in which four installation cavities are arranged along the length direction of the plastic shell, fixed installation structures are respectively arranged at both ends of the length direction of the plastic shell, and clamping plate guide structures are respectively arranged at the bottom positions between adjacent installation cavities, and a core unit is respectively installed in each of the installation cavities, and the core unit includes a pair of split plastics and terminals, a row of terminals distributed at equal intervals are respectively installed in the pair of split plastics, and the terminals in the pair of split plastics are correspondingly arranged, and the pair of split plastics are assembled to form a plastic body of the core unit, and guide blocks are respectively arranged on both sides of the front and rear sides of the plastic body, and guide grooves corresponding to the guide blocks are arranged on the inner side surfaces of each installation cavity of the plastic shell, and one end of the guide groove passes through the plastic shell; at least two locking protrusions are respectively arranged on the front and rear sides of the plastic body, and a locking groove cooperating with the locking protrusion is arranged in the plastic shell.

2. A clamp-type Gen-Z expandable connector according to claim 1, characterized in that: A pair of split plastics are connected into a whole through a mortise and tenon structure.

3. A clamp-type Gen-Z expandable connector according to claim 2, characterized in that: The split type plastic connection method is a dovetail groove connection structure or a T-slot connection structure.

4. The splint-type Gen-Z expandable connector according to claim 1, characterized in that: Limiting grooves are respectively arranged on both sides of the plastic body in the length direction, and limiting convex strips matching with the limiting grooves are arranged at corresponding positions of the installation cavity of the plastic shell.

5. The splint-type Gen-Z expandable connector according to claim 1, characterized in that: A plate groove matched with the edge of the printed circuit board is provided in the middle of the fixed installation structure, a nut installation portion is provided on one side of the plate groove, and a countersunk hole portion is provided on the other side of the plate groove.

6. The splint-type Gen-Z expandable connector according to claim 1, characterized in that: The clamping plate guide structure includes a pair of clamping parts, a plate groove cooperating with the printed circuit board is provided between the pair of clamping parts, the opposite surfaces of the pair of clamping parts are respectively fitted with the two sides of the printed circuit board, and a positioning rib is provided between the pair of clamping parts, and the positioning rib cooperates with the positioning groove on the printed circuit board.

7. The splint-type Gen-Z expandable connector according to claim 1, characterized in that: The opening end of the guide groove is a trumpet-shaped opening.

8. The splint-type Gen-Z expandable connector according to claim 1, characterized in that: The front end of the locking groove and the front end of the locking protrusion are respectively provided with guide slopes.

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