Computer mainboard with modularized expansion slot

Abstract

The computer mainboard with the modularized expansion slot comprises a core board, memory slots, interfaces and a chip part, a plurality of memory slots are installed on the top of the core board, a plurality of interfaces are installed on the edge of the top face of the core board, the chip part is installed in the center of the top face of the core board, and the modularized expansion slot is installed on the chip part. A male seat is fixedly connected to the edge of the core plate, a plurality of inserting holes are formed in the end face of the male seat, and cleaning rings are embedded in ports of the inserting holes. The utility model has the advantages that through the matching arrangement of the core board, the male seat, the jack, the cleaning ring, the female seat and the expansion board, the core board and the expansion board can be quickly combined, the number of memory slots is linearly expanded, the silver-nickel alloy cleaning ring automatically removes a contact oxidation layer, and the fluctuation of contact resistance is small.

Description

TECHNICAL FIELD

[0001] The utility model relates to computer mainboard technical field, especially a computer mainboard with modularization expansion slot. BACKGROUND

[0002] Computer mainboard is one of the core components in computer system, also called system board or main circuit board. It is a large printed circuit board (PCB) that provides physical and electrical connections for all key components of a computer, serving as a communication bridge between various components to ensure they work together. Traditional computer mainboard has two technical defects:

[0003] Fixed memory slot design limits maximum memory capacity, unable to adapt to dynamic expansion needs of AI computing, big data processing and other scenarios;

[0004] The expansion interface is prone to oxide layer (contact resistance increase > 20%), resulting in increased signal transmission error rate. UTILITY MODEL CONTENT

[0005] The utility model aims to solve at least one of the technical defects.

[0006] Therefore, one purpose of the utility model is to provide a computer mainboard with modularization expansion slot to solve the problems mentioned in the background technology and overcome the shortcomings in the prior art.

[0007] In order to achieve the above purpose, an embodiment of the utility model provides a computer mainboard with modularization expansion slot, which comprises a core board, a memory slot, an interface, a chip part, and the top of the core board is provided with a plurality of memory slots;

[0008] The edge of the top surface of the core board is provided with a plurality of interfaces, and the center of the top surface of the core board is provided with a chip part;

[0009] The edge of the core board is fixedly connected with a male seat, a plurality of insertion holes are formed in the end face of the male seat, and a cleaning ring is embedded in the port of the insertion hole;

[0010] The outer surface of the male seat is sleeved with a female seat, and a plurality of insertion pins are fixedly connected to the inner side of the female seat and inserted into the corresponding insertion holes;

[0011] The bottom of the female seat is fixedly connected with an expansion board, and the top surface of the expansion board is provided with a plurality of memory slots.

[0012] According to any one of the above schemes, the base material of the core board is polyimide, and the side surface of the core board is attached to the side surface of the expansion board.

[0013] The computer mainboard comprises a core board and an extension board, and can realize extension of the number of loadable memory banks.

[0014] Meanwhile, a cleaning ring is inlaid at the end of the male socket port, which is a silver-nickel alloy ring and can remove the oxide layer on the surface of the pin when the pin is connected and disconnected.

[0015] According to any one of the above schemes, the memory slots are parallel to each other.

[0016] The main board structure comprises a main body structure:

[0017] The core board structure comprises: a base material made of a 4-layer polyimide substrate (thickness 1.6 mm, dielectric constant 3.2); a chip part arranged in a central region, for mounting CPU, chipset and other core components; and male sockets distributed at edges, with a spacing error of less than or equal to 0.05 mm.

[0018] The extension board structure comprises: a base plate with a size of 1 / 4 of the core board; a plurality of DDR5 memory slots (spacing 6.5 mm) arranged on the top surface; and a female socket arranged at the edge.

[0019] The connector system comprises: a male socket assembly; a plurality of gold-plated jacks (aperture 0.4 mm, depth 5 mm); and a silver-nickel alloy cleaning ring (thickness 0.2 mm) embedded at the entrance of the jack.

[0020] The female socket assembly comprises: a pin made of elastic phosphor bronze (diameter 0.38 mm); and a hard gold layer (thickness 50 μm) plated on the surface of the pin.

[0021] A guide conical surface (conical angle 30°) is arranged.

[0022] According to any one of the above schemes, the male socket is electrically connected to the core board, and the cleaning ring is movably connected to the surface of the pin of the female socket.

[0023] The plug-in process comprises: inserting the pin of the female socket along the cleaning ring; the friction coefficient between the silver-nickel alloy and the surface of the pin is 0.15-0.2; and the oxide layer is mechanically scraped off. The plug-out process comprises: reversing the pin to exit; polishing the surface of the pin with silicon carbide particles (particle size 5 μm) in the inner wall of the cleaning ring; and reducing the contact resistance by 8-12 mΩ in a single cleaning.

[0024] According to any one of the above schemes, the material of the cleaning ring is silver-nickel alloy, and the length and width of the extension board are less than those of the core board.

[0025] The core advantage of the device is that the core board and the extension board can be quickly combined, and the number of memory slots is linearly extended.

[0026] Silver nickel alloy cleaning ring automatically removes contact oxidation layer, and contact resistance fluctuation is small.

[0027] Preferably, the expansion board is provided with through holes at several corners.

[0028] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0029] The computer mainboard with the modular expansion slot is characterized in that the core board and the expansion board can be quickly combined, and the number of memory slots is linearly expanded.

[0030] Silver nickel alloy cleaning ring automatically removes contact oxidation layer, and contact resistance fluctuation is small.

[0031] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0032] The above and / or additional aspects and advantages of the utility model will become apparent and easy to understand from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0033] Figure 1 It is a structural schematic view of the first perspective of the utility model;

[0034] Figure 2 It is a structural schematic view of the second perspective of the utility model;

[0035] Figure 3 It is a structural schematic view of the third perspective of the utility model;

[0036] Figure 4 It is a structural schematic view of the public seat of the utility model.

[0037] In the figure: 1-core board, 2-memory slot, 3-interface, 4-chip part, 5-public seat, 6-jack, 7-cleaning ring, 8-female seat, 9-expansion board. DETAILED DESCRIPTION

[0038] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0039] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connectable; can be mechanical connection, also can be electrical connection; can be direct connection, also can through intermediate medium indirectly connect, can be two element internal communication. For ordinary skilled in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0040] As Figures 1-4 The utility model discloses a computer mainboard with modular expansion slot, including core board 1, memory slot 2, interface 3, chip part 4, the top of core board 1 is equipped with a plurality of memory slot 2;

[0041] The edge of the top surface of core board 1 is equipped with a plurality of interfaces 3, and the center of the top surface of core board 1 is equipped with a chip part 4;

[0042] The edge of core board 1 is fixedly connected with a male seat 5, a plurality of insertion holes 6 are formed in the end face of male seat 5, and a cleaning ring 7 is embedded in the port of insertion hole 6;

[0043] The outer surface of male seat 5 is sleeved with a female seat 8, and a plurality of insertion pins are fixedly connected to the inner side of female seat 8 and inserted into corresponding insertion holes 6;

[0044] The bottom of female seat 8 is fixedly connected with an expansion board 9, and a plurality of memory slots 2 are mounted on the top surface of expansion board 9.

[0045] In embodiment 1, the base material of core board 1 is polyimide, and the side surface of core board 1 is attached to the side surface of expansion board 9. The computer mainboard comprises core board 1 and expansion board 9, can realize the expansion of the number of loadable memory bars, and adopts modular design.

[0046] Meanwhile, a cleaning ring 7, which is a silver-nickel alloy ring, is embedded in the port of insertion hole 6 of male seat 5, and the movable connection between the insertion pin and the cleaning ring 7 can remove the oxidation layer on the surface of the insertion pin. The memory slots 2 are parallel to each other. The male seat 5 is electrically connected to the core board 1, and the cleaning ring 7 is movably connected to the surface of the insertion pin of female seat 8. The material of cleaning ring 7 is silver-nickel alloy, and the length and width of expansion board 9 are less than the length and width of core board 1. A plurality of through holes are formed in the corners of expansion board 9.

[0047] Embodiment 2: The mainboard structure is composed of: main structure: core board 1 structure: the base material adopts 4-layer polyimide substrate (thickness 1.6mm, dielectric constant 3.2); the chip part 4 is arranged in the center area, and the core elements such as CPU and chip set are installed; the public seat 5 is distributed at the edge, and the spacing error is less than or equal to 0.05mm; the expansion board 9 structure: the size of the substrate is 1 / 4 of the core board; a plurality of DDR5 memory slots (spacing 6.5mm) are arranged on the top surface; the female seat 8 is arranged at the edge.

[0048] Connector system: public seat 5 component; a plurality of gold-plated jacks 6 (hole diameter 0.4mm, depth 5mm) are arranged; the silver-nickel alloy cleaning ring (thickness 0.2mm) is embedded at the entrance of the jack 6; female seat 8 component: the plug pin is made of elastic phosphor bronze material (diameter 0.38mm); the plug pin surface is plated with a hard gold layer (thickness 50μm); the guide cone surface (taper angle 30°) is installed.

[0049] The working principle of the utility model is as follows:

[0050] The plug-in process is as follows: the female seat 8 plug pin is inserted along the cleaning ring 7; the friction coefficient of silver-nickel alloy and plug pin surface is 0.15-0.2; the oxide layer is mechanically scraped off. The pull-out process is as follows: the plug pin is reversely withdrawn; the silicon carbide particles (particle size 5μm) in the inner wall of the cleaning ring 7 polish the plug pin surface; single cleaning can reduce the contact resistance by 8-12mΩ.

[0051] Compared with the prior art, the utility model has the following beneficial effects:

[0052] The computer mainboard with modular expansion slot is quickly combined by the cooperation of the core board 1, the public seat 5, the jack 6, the cleaning ring 7, the female seat 8 and the expansion board 9, and the number of memory slots 2 is linearly expanded;

[0053] The silver-nickel alloy cleaning ring 7 automatically removes the contact oxidation layer, and the contact resistance fluctuation is small.

Claims

1. A computer motherboard having modular expansion slots, characterized by, Including core board (1), memory slot (2), interface (3), chip part (4), the top of core board (1) is equipped with a plurality of memory slot (2); The edge of the top surface of the core board (1) is equipped with a plurality of interfaces (3), and the center of the top surface of the core board (1) is equipped with a chip part (4); The edge of the core board (1) is fixedly connected with a male seat (5), a plurality of insertion holes (6) are formed in the end surface of the male seat (5), and a cleaning ring (7) is embedded in the port of the insertion hole (6); The outer surface of the male seat (5) is sleeved with a female seat (8), a plurality of insertion pins are fixedly connected to the inner side of the female seat (8) and inserted into the corresponding insertion hole (6); The bottom of the female seat (8) is fixedly connected with an expansion board (9), and a plurality of memory slots (2) are installed on the top surface of the expansion board (9).

2. The computer motherboard having modular expansion slots of claim 1, wherein: The base material of the core board (1) is polyimide, and the side surface of the core board (1) is attached to the side surface of the expansion board (9).

3. A computer motherboard having modular expansion slots as recited in claim 2, wherein: The memory slots (2) are parallel to each other.

4. The computer motherboard having modular expansion slots of claim 3, wherein: The male seat (5) and the core board (1) are electrically connected, and the cleaning ring (7) is movably connected to the surface of the insertion pin of the female seat (8).

5. A computer motherboard having modular expansion slots as claimed in claim 4 wherein: The material of the cleaning ring (7) is silver nickel alloy, and the length and width of the expansion board (9) are less than the length and width of the core board (1).

6. A computer motherboard having modular expansion slots as recited in claim 5, wherein: A plurality of through holes are formed in the corners of the expansion board (9).

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