Circuit board assembly and circuit board for interface expansion based on Slimsas interface

Abstract

The present invention discloses a circuit board assembly and a circuit mainboard for interface expansion based on a Slimsas interface. The circuit board assembly includes a circuit mainboard and a function board provided with an expansion interface, the circuit mainboard is provided with a mainboard-side Slimsas interface, the function board is provided with an expansion-side Slimsas interface, the mainboard-side Slimsas interface and the corresponding expansion-side Slimsas interface both include a signal pin group of the interface expanded by the mainboard-side Slimsas interface, the mainboard-side Slimsas interface is connected to the corresponding expansion-side Slimsas interface via a Slimsas connecting line; the interface signal pin group of the expansion-side Slimsas interface is electrically connected to the corresponding expansion interface on the function board. The present invention utilizes the Slimsas interface for interface expansion, so that the circuit mainboard and the function board can be connected for communication via the Slimsas connecting line, which can reduce space occupation and reduce the probability of communication connection disconnection.

Description

Technical Field

[0001] The invention relates to the technical field of circuit boards, and in particular to a circuit board component and a circuit mainboard for performing interface expansion based on a Slimsas interface. Background Art

[0002] Due to size limitations, the types and quantities of functional interfaces provided on the circuit main board are limited. In some business scenarios, the device needs to use a large number of interface types and quantities, and the types and quantities of interfaces on the circuit main board of the device may not be enough. In response to this situation, the industry usually sets a PCIe slot on the circuit main board, and the user expands the required functional interface through the PCIe slot. For example, the technical solution given in patent document CN104345834B takes a PCIe expansion card (i.e., a PCIe adapter board) 100 and inserts it vertically into the PCIe slot 210 of the circuit main board 200. The PCIe expansion card 100 is provided with a PCIe slot 11 and a PCIe expansion controller. The user inserts the function card (function board) integrated with the required expansion interface type and quantity horizontally into the PCIe slot 11 on the PCIe expansion card 100 (the function card is perpendicular to the PCIe expansion card and is in a suspended state). The PCIe expansion card 100 realizes the communication connection between the circuit main board 200 and the function card through its PCIe expansion controller. From the attachment of the above patent document Figure 2 (As shown below) it can be seen that the PCIe expansion card 100 is erected on the circuit main board 200, which requires a large space in the device; and the circuit main board and the function card are connected through the erected PCIe expansion card, which is easily affected by external forces, causing relative displacement between the PCIe expansion card and the circuit main board and the function card, thereby causing the connection between the PCIe expansion card and the circuit main board and the function card to become loose, resulting in the disconnection of the communication connection between the circuit main board and the function card. Summary of the invention

[0003] The technical problem to be solved by the present invention is how to reduce space occupation and lower the probability of communication connection disconnection.

[0004] In order to solve the above technical problems, the present invention provides a circuit board assembly for interface expansion based on a Slimsas interface, the circuit board assembly includes a circuit main board for interface expansion and a function board provided with an expansion interface required by the circuit main board, the circuit main board is provided with a main board side Slimsas interface for interface expansion, the function board is provided with an expansion side Slimsas interface corresponding to the main board side Slimsas interface, the main board side Slimsas interface and its corresponding expansion side Slimsas interface both include a signal pin group of the interface expanded by the main board side Slimsas interface, the main board side Slimsas interface of the circuit main board is connected to the corresponding expansion side Slimsas interface of the function board via a Slimsas connecting line; the interface signal pin group of the expansion side Slimsas interface on the function board is electrically connected to the corresponding expansion interface on the function board.

[0005] Furthermore, the circuit board assembly includes the Slimsas connecting wire.

[0006] Further:

[0007] The circuit main board includes a first circuit main board and a second circuit main board, the first circuit main board is provided with a first Slimsas interface on the main board side, the second circuit main board is provided with a second Slimsas interface on the main board side and a third Slimsas interface on the main board side, and the first Slimsas interface on the main board side, the second Slimsas interface on the main board side, and the third Slimsas interface on the main board side each extend a different interface;

[0008] The extended side Slimsas interface on the function board includes an extended side first Slimsas interface, an extended side second Slimsas interface and an extended side third Slimsas interface which respectively correspond to the main board side first Slimsas interface, the main board side second Slimsas interface and the main board side third Slimsas interface; the main board side first Slimsas interface, the main board side second Slimsas interface and the main board side third Slimsas interface are each connected to the corresponding extended side first Slimsas interface, the extended side second Slimsas interface and the extended side third Slimsas interface via a Slimsas connecting line.

[0009] Further:

[0010] The first Slimsas interface on the mainboard side and the first Slimsas interface on the expansion side corresponding thereto both include a PCIe x1 signal pin group, a network port signal pin group, a power signal pin group and an indicator light signal pin group;

[0011] The second Slimsas interface on the mainboard side and its corresponding second Slimsas interface on the expansion side both include a PCIe x4 signal pin group, a PCIe x2 signal pin group, a power signal pin group and an indicator light signal pin group;

[0012] The third Slimsas interface on the mainboard side and its corresponding third Slimsas interface on the expansion side both include a PCIe x8 signal pin group, a power signal pin group and an indicator light signal pin group;

[0013] The expansion interfaces provided on the function board include a PCIe x8 interface, a PCIe x4 interface, a PCIe x2 interface, a PCIe x1 interface and a network port. The PCIe x1 interface and the network port are respectively connected to the PCIe x1 signal pin group and the network port signal pin group of the first Slimsas interface on the expansion side, the PCIe x4 interface and the PCIe x2 interface are respectively connected to the PCIe x4 signal pin group and the PCIe x2 signal pin group of the second Slimsas interface on the expansion side, and the PCIe x8 interface is connected to the PCIe x8 signal pin group of the third Slimsas interface on the expansion side.

[0014] Furthermore: there are three groups of PCIe x1 signal pin groups, and there are two groups of network port signal pin groups; there are three PCIe x1 interfaces, and there are two network ports.

[0015] Furthermore, the network port signal pin group is a gigabit network port signal pin group, and the network port is a gigabit network port.

[0016] Further, the power signal pin groups of the first Slimsas interface on the mainboard side, the second Slimsas interface on the mainboard side, the third Slimsas interface on the mainboard side and the corresponding first Slimsas interface on the extension side, the second Slimsas interface on the extension side, and the third Slimsas interface on the extension side are connected to a common power supply end, and the indicator light signal pin groups of the first Slimsas interface on the mainboard side, the second Slimsas interface on the mainboard side, the third Slimsas interface on the mainboard side and the corresponding first Slimsas interface on the extension side, the second Slimsas interface on the extension side, and the third Slimsas interface on the extension side are connected to a common indicator light.

[0017] The present invention also provides a circuit mainboard for interface expansion based on the Slimsas interface. The circuit mainboard is provided with a mainboard-side Slimsas interface, and the mainboard-side Slimsas interface includes an interface signal pin group expanded by it.

[0018] Further:

[0019] The circuit main board includes a first circuit main board and a second circuit main board. The first circuit main board is provided with a first Slimsas interface on the main board side, and the second circuit main board is provided with a second Slimsas interface on the main board side and a third Slimsas interface on the main board side. The first Slimsas interface on the main board side, the second Slimsas interface on the main board side, and the third Slimsas interface on the main board side each extend a different interface.

[0020] Specifically:

[0021] The first Slimsas interface on the motherboard side includes a PCIe x1 signal pin group, a network port signal pin group, a power signal pin group, and an indicator light signal pin group;

[0022] The second Slimsas interface on the motherboard side includes a PCIe x4 signal pin group, a PCIe x2 signal pin group, a power signal pin group, and an indicator light signal pin group;

[0023] The third Slimsas interface on the mainboard side includes a PCIe x8 signal pin group, a power signal pin group and an indicator light signal pin group.

[0024] Furthermore, there are three groups of PCIe x1 signal pin groups, and there are two groups of network port signal pin groups.

[0025] The present invention utilizes the Slimsas interface for interface expansion, so that the circuit main board and the function board can be communicatively connected through the Slimsas connecting line. On the one hand, the connecting line reduces the space occupied compared with the existing PCIe expansion card. On the other hand, the connecting line has a certain length. Even if the positions of the circuit main board and the function board are affected by external forces and shifted to a certain extent, the communication connection between the circuit main board and the function board can still be ensured to remain connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the circuit board assembly for interface expansion based on the Slimsas interface.

[0027] Figure 2 The invention is a signal connection block diagram of an interface signal pin group of a first Slimsas interface on a mainboard side / a first Slimsas interface on an extension side of a circuit board assembly for interface extension based on the Slimsas interface and a corresponding extension interface on a function board.

[0028] Figure 3 The present invention is a signal connection block diagram of an interface signal pin group of a second Slimsas interface on a mainboard side / a second Slimsas interface on an extension side of a circuit board assembly for interface extension based on a Slimsas interface and a corresponding extension interface on a function board.

[0029] Figure 4 The present invention is a signal connection block diagram of an interface signal pin group of a third Slimsas interface on a mainboard side / a third Slimsas interface on an extension side of a circuit board assembly for interface extension based on the Slimsas interface and a corresponding extension interface on a function board. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with specific implementation methods.

[0031] like Figure 1 As shown, the circuit board assembly for interface expansion based on the Slimsas interface includes a circuit board 1 for interface expansion and a function board 2 provided with the expansion interface required by the circuit board 1. The circuit board 1 includes a first circuit board 11 and a second circuit board 12. The first circuit board 1 is provided with a first Slimsas interface 111 on the main board side for interface expansion, and the second circuit board 12 is provided with a second Slimsas interface 121 on the main board side and a third Slimsas interface 122 on the main board side for interface expansion. The function board 2 is provided with a first Slimsas interface 21 on the expansion side, a second Slimsas interface 22 on the expansion side, and a third Slimsas interface 23 on the expansion side corresponding to the first Slimsas interface on the main board side, the second Slimsas interface on the main board side, and the third Slimsas interface 111, 121, 122 on the main board side, respectively. The circuit board assembly includes Slimsas connecting lines 31, 32, and 33. The first Slimsas interface 111 on the mainboard side of the first circuit mainboard 11 is connected to the first Slimsas interface 21 on the extension side of the function board 2 via the Slimsas connecting line 31. The second Slimsas interface 121 on the mainboard side of the second circuit mainboard 12 is connected to the second Slimsas interface 22 on the extension side of the function board 2 via the Slimsas connecting line 32. The third Slimsas interface 122 on the mainboard side of the second circuit mainboard 12 is connected to the third Slimsas interface 23 on the extension side of the function board 2 via the Slimsas connecting line 33.

[0032] The user configures the pins of the Slimsas interface as the signal pins of one or more interfaces to be expanded in a software-defined manner to achieve expansion of one or more interfaces. Figure 2 As shown, the pins of the first Slimsas interface 111 on the motherboard side and the pins of the first Slimsas interface 21 on the expansion side are configured as three groups of PCIe x1 signal pins, two groups of Gigabit network port signal pins, a power signal pin group and an indicator light signal pin group. Figure 3As shown, the pins of the second Slimsas interface 121 on the motherboard side and the pins of the second Slimsas interface 22 on the expansion side are configured as a PCIe x4 signal pin group, a PCIe x2 signal pin group, a power signal pin group and an indicator light signal pin group. Figure 4 As shown, the pins of the third Slimsas interface 122 on the motherboard side and the pins of the third Slimsas interface 23 on the extension side are configured as PCIe x8 signal pin groups, power signal pin groups and indicator light signal pin groups. That is, the first Slimsas interface 111 on the motherboard side and the first Slimsas interface 21 on the extension side include three groups of PCIe x1 signal pin groups, two groups of Gigabit network port signal pin groups, power signal pin groups and indicator light signal pin groups. The second Slimsas interface 121 on the motherboard side and the second Slimsas interface 22 on the extension side include PCIe x4 signal pin groups, PCIe x2 signal pin groups, power signal pin groups and indicator light signal pin groups. The third Slimsas interface 122 on the motherboard side and the third Slimsas interface 23 on the extension side include PCIe x8 signal pin groups, power signal pin groups and indicator light signal pin groups. The power signal pin groups of the first Slimsas interface on the mainboard side, the second Slimsas interface on the mainboard side, the third Slimsas interface on the mainboard side 111, 121, 122 and the corresponding first Slimsas interface on the extension side, the second Slimsas interface on the extension side, the third Slimsas interface on the extension side 21, 22, 23 are connected to a common power supply terminal, and the indicator light signal pin groups of the first Slimsas interface on the mainboard side, the second Slimsas interface on the mainboard side, the third Slimsas interface on the mainboard side 111, 121, 122 and the corresponding first Slimsas interface on the extension side, the second Slimsas interface on the extension side, the third Slimsas interface on the extension side 21, 22, 23 are connected to a common indicator light. The expansion interfaces provided on the function board 2 include a PCIe x8 interface 24, a PCIe x4 interface 25, a PCIe x2 interface 26, three PCIe x1 interfaces 27 and two Gigabit network ports 28 ( Figure 1The two Gigabit network ports 28 are stacked up and down). The three PCIe x1 interfaces 27 of the function board are respectively connected to the three groups of PCIe x1 signal pin groups of the first Slimsas interface 21 on the extension side, and the two Gigabit network ports 28 of the function board are respectively connected to the two groups of Gigabit network port signal pin groups of the first Slimsas interface 21 on the extension side. The PCIe x4 interface 25 of the function board is connected to the PCIe x4 signal pin group of the second Slimsas interface 22 on the extension side, and the PCIe x2 interface 26 of the function board is connected to the PCIe x2 signal pin group of the second Slimsas interface 22 on the extension side. The PCIe x8 interface 24 of the function board 2 is connected to the PCIe x8 signal pin group of the third Slimsas interface 23 on the extension side.

[0033] The present invention utilizes Slimsas interfaces 111, 121, 122, 21, 22, 23 for interface expansion, so that the circuit main board 1 and the function board 2 can be communicatively connected through Slimsas connecting lines 31, 32, 33. On the one hand, the Slimsas connecting lines 31, 32, 33 reduce the space occupied compared with the existing PCIe expansion card. On the other hand, the Slimsas connecting lines 31, 32, 33 have a certain length. Even if the positions of the circuit main board 1 and the function board 2 are affected by external forces and the positions of the two are offset to a certain extent, it can still ensure that the communication connection between the circuit main board 1 and the function board 2 remains connected.

[0034] The above is only an implementation method of the invention, and does not limit the scope of patent protection. Those skilled in the art can make non-substantial changes or substitutions based on the invention, which still fall within the scope of patent protection.

Claims

1. A circuit board assembly for interface expansion based on a Slimsas interface, characterized in that: The circuit board assembly includes a circuit main board that needs to be interface expanded and a function board provided with an expansion interface required by the circuit main board. The circuit main board is provided with a main board side Slimsas interface for interface expansion. The circuit main board includes a first circuit main board and a second circuit main board. The first circuit main board is provided with a first Slimsas interface on the main board side, and the second circuit main board is provided with a second Slimsas interface on the main board side and a third Slimsas interface on the main board side. The first Slimsas interface on the main board side, the second Slimsas interface on the main board side, and the third Slimsas interface on the main board side each extend a different interface. The function board is provided with an extended side Slimsas interface corresponding to the main board side Slimsas interface; The extended side Slimsas interface on the function board includes an extended side first Slimsas interface, an extended side second Slimsas interface and an extended side third Slimsas interface corresponding to the main board side first Slimsas interface, the main board side second Slimsas interface and the main board side third Slimsas interface respectively; The mainboard side Slimsas interface and its corresponding extended side Slimsas interface both include a signal pin group of the interface extended by the mainboard side Slimsas interface; include a Slimsas connection line used for communication connection between the circuit mainboard and the function board, the mainboard side Slimsas interface of the circuit mainboard is connected to the corresponding extended side Slimsas interface of the function board via the Slimsas connection line; the interface signal pin group of the extended side Slimsas interface on the function board is electrically connected to the corresponding extended interface on the function board.

2. The circuit board assembly for interface expansion based on the Slimsas interface as claimed in claim 1, characterized in that: The first Slimsas interface on the mainboard side and the first Slimsas interface on the expansion side corresponding thereto both include a PCIe x1 signal pin group, a network port signal pin group, a power signal pin group and an indicator light signal pin group; The second Slimsas interface on the mainboard side and its corresponding second Slimsas interface on the expansion side both include a PCIe x4 signal pin group, a PCIe x2 signal pin group, a power signal pin group and an indicator light signal pin group; The third Slimsas interface on the mainboard side and its corresponding third Slimsas interface on the expansion side both include a PCIe x8 signal pin group, a power signal pin group and an indicator light signal pin group; The expansion interfaces provided on the function board include a PCIe x8 interface, a PCIe x4 interface, a PCIe x2 interface, a PCIe x1 interface and a network port. The PCIe x1 interface and the network port are respectively connected to the PCIe x1 signal pin group and the network port signal pin group of the first Slimsas interface on the expansion side, the PCIe x4 interface and the PCIe x2 interface are respectively connected to the PCIex4 signal pin group and the PCIe x2 signal pin group of the second Slimsas interface on the expansion side, and the PCIe x8 interface is connected to the PCIe x8 signal pin group of the third Slimsas interface on the expansion side.

3. The circuit board assembly for interface expansion based on the Slimsas interface as claimed in claim 2, characterized in that: There are three groups of PCIe x1 signal pin groups, and two groups of network port signal pin groups; there are three PCIe x1 interfaces, and two network ports.

4. The circuit board assembly for interface expansion based on the Slimsas interface as claimed in claim 2 or 3, characterized in that: The network port signal pin group is a gigabit network port signal pin group, and the network port is a gigabit network port.

5. The circuit board assembly for interface expansion based on the Slimsas interface as claimed in claim 2, characterized in that the main board The power signal pin groups of the first Slimsas interface on the mainboard side, the second Slimsas interface on the mainboard side, the third Slimsas interface on the mainboard side and the corresponding first Slimsas interface on the extension side, the second Slimsas interface on the extension side and the third Slimsas interface on the extension side are connected to a common power end, and the indicator light signal pin groups of the first Slimsas interface on the mainboard side, the second Slimsas interface on the mainboard side, the third Slimsas interface on the mainboard side and the corresponding first Slimsas interface on the extension side, the second Slimsas interface on the extension side and the third Slimsas interface on the extension side are connected to a common indicator light.

6. A circuit mainboard for interface expansion based on the Slimsas interface, characterized in that: The circuit main board is provided with a main board side Slimsas interface, and the main board side Slimsas interface includes an extended interface signal pin group.

7. The circuit mainboard for interface expansion based on the Slimsas interface as claimed in claim 6, characterized in that: The circuit main board includes a first circuit main board and a second circuit main board. The first circuit main board is provided with a first Slimsas interface on the main board side, and the second circuit main board is provided with a second Slimsas interface on the main board side and a third Slimsas interface on the main board side. The first Slimsas interface on the main board side, the second Slimsas interface on the main board side, and the third Slimsas interface on the main board side each extend a different interface. Specifically: The first Slimsas interface on the motherboard side includes a PCIe x1 signal pin group, a network port signal pin group, a power signal pin group, and an indicator light signal pin group; The second Slimsas interface on the motherboard side includes a PCIe x4 signal pin group, a PCIe x2 signal pin group, a power signal pin group, and an indicator light signal pin group; The third Slimsas interface on the mainboard side includes a PCIe x8 signal pin group, a power signal pin group and an indicator light signal pin group.

8. The circuit mainboard for interface expansion based on the Slimsas interface as claimed in claim 7, characterized in that: There are three groups of PCIe x1 signal pin groups, and there are two groups of network port signal pin groups.

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