CN216352162U - PCIE switching device - Google Patents

Abstract

The utility model belongs to the technical field of civil computers, and particularly relates to a PCIE switching device which comprises a mainboard, a PCIE slot arranged on the mainboard and a switching assembly inserted in the PCIE slot, wherein the switching assembly comprises a mounting plate, a connecting plate fixedly connected to the mounting plate, a switching circuit board burnt on the connecting plate and a switching plugboard connected to the bottom end of the connecting plate, and the switching circuit board is electrically connected with a switching chip, a clock buffer and a REDIRVER driver; the utility model is suitable for the field of civil computers, can meet the use requirement of a user for multiple PCIE, splits the channel through the clock buffer, simultaneously improves the signal quality by using the REDIRER driver, provides a fourth generation PCIE channel splitting and signal enhancement expansion interface board card which integrates signal integrity, and solves the problems of easy signal attenuation and insufficient use of PCIE slots brought under the high bandwidth of the PCIE4.0 era.

Description

PCIE switching device

Technical Field

The utility model belongs to the technical field of civil computers, and particularly relates to a PCIE switching device.

Background

In modern electronic computers of various scales, the importance of a high-speed serial computer expansion bus standard (PCIE) interface in various peripheral expansion interfaces is not weaker than that of a common USB. From a 40Gbps PCIE network card for carrying data center network switching service to realize network communication to a mass of NVME solid state disk with high-speed storage and then to various devices with high-bandwidth requirements, such as GPU operation cards, video acquisition cards and the like, PCIE4.0 protocol is completely supported along with the beginning of Intel, so that the real PCIE4.0 era is formally coming, but a user who has requirements on high-speed and low-delay PCIE usually faces a PCIE link, or the number of PCIE slots is not enough, or the PCIE signal attenuation is encountered after an extension line is used, so that the signal integrity is damaged, the identification problem of the PCIE devices by a mainboard is caused, the working is abnormal, the unstable condition of wrong codes in communication occurs, and no such extension product exists in the field of civil high-speed display card interfaces.

Therefore, a PCIE switch device is designed to solve the above problem.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a PCIE switching device which is suitable for the field of civil computers, can meet the use requirements of users for multiple PCIE, splits a channel through a clock buffer, improves the signal quality by using a REDIRER driver, provides a fourth generation PCIE channel splitting and signal enhancing expansion interface board card which integrates signal integrity, and solves the problems of easy signal attenuation and insufficient use of PCIE slots brought under the high bandwidth of the PCIE4.0 era.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a PCIE switching device, includes the mainboard, installs PCIE slot on the mainboard and grafting are in switching subassembly in the PCIE slot, the switching subassembly includes mounting panel, fixed connection and is in connecting plate on the mounting panel, burn and record switching circuit board on the connecting plate and connect the switching picture peg in the connecting plate bottom, the electricity is connected with switching chip, clock buffer and REDRIVER driver on the switching circuit board, just the switching chip is connected with clock buffer and REDRIVER driver electricity respectively, be equipped with a plurality of switching slots on the switching circuit board side by side, just pin and clock buffer and REDRIVER driver electricity in the switching slot are connected.

As an optimization of the PCIE switch device of the present invention, the switch board and the connection board are integrally formed, the switch board is movably inserted into the PCIE slot, and the switch circuit board is electrically connected to pins of the PCIE slot through the switch board.

As an optimal choice for the PCIE switch device of the present invention, the PCIE slot is a PCIE slot supporting 16-channel transmission, and the switch board is a PCIE gold finger supporting 16-channel transmission.

As an optimized PCIE switch device in the present invention, the upper surface of the switch chip is connected to a heat sink in a covering manner, and the switch chip is used for transmitting PCIE signals on the motherboard.

As an optimal choice for the PCIE switch device of the present invention, the number of the switch slots is set to 2, 3, or 4, and the switch slots are set to be switch slots supporting 1-lane, 2-lane, 4-lane, or 8-lane transmission.

As an optimal preference of the PCIE switch device of the present invention, the connection board and the switch circuit board are electrically connected by a board edge connector.

As an optimization of the PCIE switching device of the present invention, the edge of the connection board is uniformly fixed to the mounting board by screws, one end of the mounting board is connected to a fixing plate, and the fixing plate is used for being fixedly connected to the chassis.

Compared with the prior art, the utility model has the beneficial effects that:

1. when a user has the use requirements of multiple PCIE, the channel is split through the clock buffer, the number of slots of the PCIE on the mainboard can be expanded, meanwhile, the REDIRVER driver is utilized to improve the signal quality, the identification of the PCIE equipment by the mainboard is ensured, a fourth generation PCIE channel splitting and signal enhancement expansion interface board card which ensures the signal integrity is integrated is provided, the problems that the signal is easy to attenuate and the PCIE slots are not enough to use under the high bandwidth of the PCIE4.0 era are solved, the applicable machine type is wide (only the BIOS supports the splitting), and the price barrier is broken;

2. after the user uses the PCIE extension cord, signal quality will receive inevitable decay, utilizes the characteristic of REDIRVER driver, can effectively alleviate and use the extension cord to bring the negative effects of signal attenuation, reduces the error rate, has guaranteed signal integrality, improves PCIE equipment long distance transmission's reliability.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of the adapter assembly of the present invention;

fig. 3 is a schematic block diagram of PCIE switching according to the present invention;

FIG. 4 is a schematic structural diagram of a PCIE slot in the present invention;

reference numbers in the figures: 1. a main board; 11. a PCIE slot; 2. a switching component; 21. mounting a plate; 22. a connecting plate; 23. switching the circuit board; 24. a patch board is connected; 3. switching the chip; 31. a heat sink; 4. a clock buffer; 5. a driver; 6. a switching slot; 7. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-4;

the utility model provides a PCIE switching device, including mainboard 1, install PCIE slot 11 on mainboard 1 and peg graft switching subassembly 2 in PCIE slot 11, switching subassembly 2 includes mounting panel 21, fixed connection is at connecting plate 22 on mounting panel 21, burn switching circuit board 23 on connecting plate 22 and connect the switching picture peg 24 in connecting plate 22 bottom, the electricity is connected with switching chip 3 on switching circuit board 23, clock buffer 4 and REDRIVER driver 5, and switching chip 3 is connected with clock buffer 4 and REDRIVER driver 5 electricity respectively, be equipped with a plurality of switching slots 6 on the switching circuit board 23 side by side, and the pin in the switching slot 6 is connected with clock buffer 4 and REDRIVER driver 5 electricity.

In this embodiment: when the peripheral component interface card is used, PCIE equipment needing to be expanded is inserted into the switching slot 6, then the switching slot 24 on the switching assembly 2 is inserted into the PCIE slot 11 to be connected with the mainboard 1, so that transmission communication between the PCIE equipment and the mainboard 1 is completed, channels are split through the clock buffer 4, the number of the slots of the PCIE on the mainboard 1 can be expanded, meanwhile, the REDIRER driver 5 is used for improving signal quality, recognition of the PCIE equipment by the mainboard 1 is guaranteed, a fourth generation PCIE channel splitting and signal enhancement expansion interface card for guaranteeing signal integrity into a whole is provided, and the problems that signals are easy to attenuate and the PCIE slot 11 is not enough to use under the high bandwidth of the PCIE4.0 era are solved.

It should be noted that: the connecting board 22 is electrically connected with the adapter circuit board 23 through the board-side connector, so that the adapter circuit board 23 can be stably connected to the connecting board 22, and the signal transmission between the two is more stable and reliable.

It should be understood that: the edge of the connecting plate 22 is uniformly connected to the mounting plate 21 through screws, one end of the mounting plate 21 is connected with the fixing plate 7, and the fixing plate 7 is fixedly connected to the case, so that the mounting is convenient, the whole fixing device can be firmly fixed to the case, and the mounting is stable and reliable.

In a preferred embodiment, the patch board 24 and the connection board 22 are integrally formed, the patch board 24 is movably plugged into the PCIE slot 11, and the patch circuit board 23 is electrically connected to pins of the PCIE slot 11 through the patch board 24.

In this embodiment: when the switching plug board 24 is inserted into the PCIE slot 11, the switching circuit board 23 and the connection board 22 are both in communication connection with the motherboard 1, so that the user is prevented from using a PCIE extension line, the cost is saved, and signal transmission is more convenient and faster.

In a preferred embodiment, the PCIE slot 11 is configured as a PCIE slot supporting 16-lane transmission, and the patch board 24 is configured as a PCIE gold finger supporting 16-lane transmission.

In this embodiment: through the PCIE gold finger arranged on the switching plug board 24 and matched with the PCIE slot 11, the switching plug board 24 is well matched with the PCIE slot 11, so that the reliability of signal transmission is ensured, and the PCIE slot 11 can support peripheral PCIE devices of 1 channel, 4 channels, 8 channels, or 16 channels, thereby improving the connection compatibility of the PCIE slot 11.

It should be noted that: the number of the adaptor slots 6 is set to 2, 3 or 4, and the adaptor slots 6 are set to adaptor slots supporting 1-channel, 2-channel, 4-channel or 8-channel transmission, and a standard PCIE specification defines that one slot supporting more transmission channels can establish a transmission mode with fewer channels, for example, a 16-channel adaptor slot can support 1-channel, 4-channel, 8-channel or 16-channel peripheral devices, so that the applicability of the adaptor slots 6 in connecting PCIE devices is improved.

In a preferred embodiment, the upper surface of the interposer chip 3 is covered and connected with the heat sink 31, and the interposer chip 3 is used for transmitting PCIE signals on the motherboard 1.

In this embodiment: through the switching chip 3 that sets up, can carry out analysis processes with PCIE signal on the mainboard 1 to transmit and carry out the split channel to clock buffer 4, can extend the slot quantity of PCIE on the mainboard 1, transmit simultaneously and improve signal quality to REDRIVER driver 5, guaranteed the mainboard 1 to the discernment of PCIE equipment, guaranteed the integrality of signal.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A PCIE switching device is characterized in that: comprises a mainboard (1), a PCIE slot (11) installed on the mainboard (1) and a switching component (2) inserted in the PCIE slot (11), the switching assembly (2) comprises a mounting plate (21), a connecting plate (22) fixedly connected to the mounting plate (21), a switching circuit board (23) burnt on the connecting plate (22) and a switching plugboard (24) connected to the bottom end of the connecting plate (22), the switching circuit board (23) is electrically connected with a switching chip (3), a clock buffer (4) and a driver (5), and the switching chip (3) is respectively and electrically connected with the clock buffer (4) and the driver (5), a plurality of adapter slots (6) are arranged on the adapter circuit board (23) side by side, and pins in the adapter socket (6) are electrically connected with the clock buffer (4) and the driver (5).

2. The PCIE switch device of claim 1, wherein: the integrated into one piece sets up between switching picture peg (24) and connecting plate (22), just switching picture peg (24) activity is pegged graft in PCIE slot (11), switching circuit board (23) is connected through the pin electricity of switching picture peg (24) with PCIE slot (11).

3. The PCIE switch device of claim 2, wherein: the PCIE slot (11) is set as a PCIE slot supporting 16-channel transmission, and the switching plug board (24) is set as a PCIE golden finger supporting 16-channel transmission.

4. The PCIE switch device of claim 3, wherein: the upper surface of the switching chip (3) is covered and connected with a radiating fin (31).

Images