CN220020207U - Expansion board card and computer equipment - Google Patents

Expansion board card and computer equipment Download PDF

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Publication number
CN220020207U
CN220020207U CN202320704026.9U CN202320704026U CN220020207U CN 220020207 U CN220020207 U CN 220020207U CN 202320704026 U CN202320704026 U CN 202320704026U CN 220020207 U CN220020207 U CN 220020207U
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interface
vpx
expansion board
microcontroller
vpx connector
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CN202320704026.9U
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Chinese (zh)
Inventor
张瑞琪
徐晓宗
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Loongson Technology Corp Ltd
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Loongson Technology Corp Ltd
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Priority to CN202320704026.9U priority Critical patent/CN220020207U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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Abstract

The embodiment of the utility model provides an expansion board card and computer equipment, which relate to the technical field of control, wherein a first VPX connector is welded on a circuit board of the expansion board card, and pins of the first VPX connector are respectively and simultaneously electrically connected with transmission interfaces with a plurality of different function types, such as a USB interface, an RS232 interface, an RS422 interface and the like, so as to carry out data communication to the transmission interfaces. Therefore, the expansion board card can be utilized to convert the interfaces corresponding to the VPX connector into various interfaces such as a USB interface, an RS232 interface, an RS422 interface and the like, the interfaces are integrally arranged on the same circuit board, and when in use, the peripheral equipment is connected with the corresponding interfaces according to the working requirements, so that the connection scheme is simpler, the use is more convenient and the cost is reduced.

Description

Expansion board card and computer equipment
Technical Field
The present utility model relates to the field of interface expansion technologies, and in particular, to an expansion board card and a computer device.
Background
Currently, to cope with the requirement of high-speed and high-stability data transmission, the use of VPX (high-speed serial bus proposed by VITA) connectors on the core board of computer equipment for connection with external hardware devices has become a popular design for some industries.
For such core boards that use VPX connectors for data transmission communication, when they are used in computer devices, connection with other special devices is often achieved through another VPX connector to complete information acquisition or output.
When the core board needs to be connected with conventional peripheral equipment with other interface types with lower transmission rate, different switching devices are needed to be used for peripheral equipment with different interfaces respectively, so that a connection scheme is complex and complicated.
Disclosure of Invention
In view of the above problems, an expansion board card and a computer device are provided to overcome the above problems or at least partially solve the above problems, so as to solve the problem that the VPX core board needs to use different switching devices for peripheral devices with different interfaces, which results in a complex and cumbersome connection scheme.
In order to solve the above problems, in one aspect, the present utility model discloses an expansion board card, which includes a circuit board and a first VPX connector;
the pins of the first VPX connector are welded and fixed with the circuit board, and are respectively and simultaneously electrically connected with transmission interfaces with different function types so as to carry out data communication to each interface in the transmission interfaces;
the transmission interface at least comprises a USB interface, an RS232 interface, an RS422 interface, a JTAG interface and a BMC burning interface.
Optionally, the expansion board further comprises a microcontroller, and the first VPX connector is electrically connected with the microcontroller;
the microcontroller is used for controlling the on-off of a power supply output pin of the first VPX connector; and/or the number of the groups of groups,
the microcontroller is used for calculating the power value of the core board connected with the expansion board card.
Optionally, the expansion board further comprises an NMOS tube and a PMOS tube;
the grid electrode of the NMOS tube is electrically connected with any pin of the microcontroller, the drain electrode of the NMOS tube is electrically connected with the anode of an external power supply, and the source electrode of the NMOS tube is grounded;
the grid electrode of the PMOS tube is electrically connected with the drain electrode of the NMOS tube, the source electrode of the PMOS tube is electrically connected with the anode of an external power supply, and a capacitor is connected between the drain electrode of the PMOS tube and the grounding end and is connected with the power supply output pin, so that the microcontroller controls the on-off of the power supply output pin.
Optionally, the expansion board further comprises a signal acquisition device, a display driving device and a display device;
the signal acquisition device is connected between the microcontroller and the first VPX connector and is used for acquiring current and voltage of a core board connected with the expansion board card;
the display driving device is connected between the microcontroller and the display device and used for driving the display device to display the power of the core board.
Optionally, the number of the first VPX connectors is two;
and after the two first VPX connectors are electrically connected with the microcontroller, the two first VPX connectors are electrically connected with a group of transmission interfaces respectively so as to realize bidirectional data communication between the two core boards.
Optionally, a protection device is connected to a signal line between the USB interface and the first VPX connector.
Optionally, the protection device includes a common mode inductor and a TVS;
each signal wire between the USB interface and the first VPX connector is connected with one common-mode inductor in series, and each signal wire between the USB interface and the first VPX connector is connected with one TVS in parallel.
Optionally, the expansion board further comprises a change-over switch, and the circuit board is provided with an ATX power interface and a DC power interface;
the change-over switch is respectively connected among the ATX power interface, the DC power interface and the first VPX connector, and is used for the VPX connector to select to use an ATX power supply or a DC power supply.
On the other hand, the utility model also discloses computer equipment comprising any expansion board card.
Optionally, the computer device further comprises a core board provided with a second VPX connector, the second VPX connector being inter-connected with the first VPX connector.
The embodiment of the utility model has the following advantages:
the first VPX connector is welded on the circuit board of the expansion board card, and pins of the first VPX connector are electrically connected with a plurality of transmission interfaces with different function types, such as a USB interface, an RS232 interface, an RS422 interface and the like. Therefore, the expansion board card can be utilized to convert the interfaces corresponding to the VPX connector into various different interfaces such as a USB interface, an RS232 interface, an RS422 interface and the like, the interfaces are integrally arranged on the same circuit board, and when in use, the peripheral equipment is connected to the corresponding interfaces according to the working requirements, so that the connection scheme is simpler.
Drawings
FIG. 1 is a schematic illustration of a first expansion board of the present utility model;
FIG. 2 is a schematic diagram of a second expansion board of the present utility model;
FIG. 3 is a schematic circuit diagram of the automatic power-on and power-off function on the expansion board of the present utility model;
FIG. 4 is a schematic diagram of a third expansion board of the present utility model;
FIG. 5 is a schematic diagram of a fourth expansion board of the present utility model;
FIG. 6 is a schematic diagram of a guard device between the VPX connector and the USB interface of the present utility model;
FIG. 7 is a schematic diagram of a computer device of the present utility model.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1, an embodiment of the present utility model provides an expansion board including a circuit board 10 and a first VPX connector 11;
the pins of the first VPX connector 11 are welded and fixed with the circuit board 10, and the pins of the first VPX connector 11 are also electrically connected with a plurality of transmission interfaces 12 with different function types respectively;
the transmission interface 12 at least includes a USB (Universal Serial Bus ) interface 121, an RS232 interface 122, an RS422 interface 123, a JTAG (Joint Test Action Group ) interface 124, and a BMC (Baseboard Management Controller ) burn interface 125.
Specifically, the expansion board card of the embodiment of the utility model is an expansion module capable of converting the interface corresponding to the VPX connector into a plurality of different conventional low transmission rate interfaces, and the expansion module can be used by being connected with a core board provided with the VPX connector correspondingly, so that abundant interfaces are expanded for the core board. The core board takes the processor and the bridge chip as the core, is connected with the memory, is provided with a control board card of peripheral circuits such as starting, resetting and the like, is used for realizing data processing, and can output the processed data.
As illustrated in fig. 1, such an expansion board includes a circuit board 10 and a first VPX connector 11. Pins of the first VPX connector 11 are soldered to the circuit board 10 and electrically connected to a plurality of different functional types of transmission interfaces 12 via traces in the circuit board 10. These transmission interfaces 12 have a lower transmission rate than VPX connectors, and are typically used for board test work or for interfacing with low performance-requiring peripherals. For example, the transmission interface 12 may include a USB interface 121, an RS232 interface 122, an RS422 interface 123, a JTAG interface 124, and a BMC burn interface 125.
It is easily understood that an extended USB peripheral may be connected through the USB interface 121 or debugging of software functions may be performed. The RS232 interface can carry out software debugging and data export on the CPU on the core board connected with the expansion board card. The RS422 interface can be in data communication with an FPGA chip on a core board connected with the expansion board card. In addition, JTAG interface 124 may serve as a debug interface for the FPGA chip and CPU. The BMC burning interface is used as a debugging interface of the baseboard management controller. The RS232 interface may be, for example, a male DB9 type connector.
The first VPX connector is welded on the circuit board of the expansion board card, and pins of the first VPX connector are electrically connected with a plurality of transmission interfaces with different function types, such as a USB interface, an RS232 interface, an RS422 interface and the like. Therefore, the expansion board card can be utilized to convert the interfaces corresponding to the VPX connector into various different interfaces such as a USB interface, an RS232 interface, an RS422 interface and the like, the interfaces are integrally arranged on the same circuit board, and when in use, the peripheral equipment is connected to the corresponding interfaces according to the working requirements, so that the connection scheme is simpler.
Optionally, referring to fig. 2, the expansion board further includes a microcontroller 13, and the first VPX connector 11 is electrically connected to the microcontroller 13;
the microcontroller 13 is used for controlling on-off of a power supply output pin VPX_OUT of the first VPX connector 11; and/or the number of the groups of groups,
the microcontroller 13 is used to calculate the power value of the core board connected to the expansion board.
Specifically, as shown in fig. 2, in one embodiment, the expansion board may further include a microcontroller 13, where the microcontroller 13, that is, a processor chip soldered on the circuit board 10, may electrically connect the first VPX connector 11 with the microcontroller 13 by using a trace on the circuit board 10, and the microcontroller 13 may put the power output pin vpx_out of the first VPX connector 11 in an on or off state. After the expansion board card is connected to the core board 30, if the power output pin vpx_out is turned on, the core board 30 is in the power-on state at this time, and if the power output pin is turned off, the core board 30 is in the power-off state at this time. That is, the microcontroller 13 can expand the function of automatically powering up and down for the core board 30, and when a tester uses the expanded board card to test the core board 30, the power switch does not need to be manually operated frequently, so that the tester can test the core board 30 conveniently.
In addition, the microcontroller 13, as a processor, also has a data operation processing function, and can calculate the power value of the core board 30 based on the current and voltage data of the core board 30 transmitted by the first VPX connector 11, so as to determine the power consumption performance of the core board 30.
Optionally, referring to fig. 3, the expansion board further includes an NMOS tube 14 and a PMOS tube 15;
the grid electrode G of the NMOS tube 14 is electrically connected with any pin of the microcontroller 13, the drain electrode D of the NMOS tube 14 is electrically connected with the positive electrode of an external power supply, and the source electrode S of the NMOS tube 14 is grounded;
the gate G of the PMOS transistor 15 is electrically connected to the drain D of the NMOS transistor 14, the source S of the PMOS transistor 15 is electrically connected to the positive electrode of the external power supply, and a capacitor 16 is connected between the drain D of the PMOS transistor 15 and the ground terminal and is connected to the power output pin vpx_out, so that the microcontroller 13 controls the on/off of the power output pin vpx_out.
Specifically, as shown in fig. 3, in one embodiment of the present utility model, two MOS transistors may be connected between the microcontroller 13 and the first VPX connector 11, and the control signal sent by the microcontroller 13 is used to control the on/off of the power output pin vpx_out.
In the illustration of fig. 3, one MOS transistor is an NMOS transistor 14 and the other MOS transistor is a PMOS transistor 15. The grid G of the NMOS tube 14 is electrically connected with any pin of the microcontroller 13, the drain D of the NMOS tube 14 is electrically connected with the positive electrode of the power supply, and the source S of the NMOS tube 14 is grounded. Therefore, when the microcontroller 13 sends a high signal to the gate G of the NMOS transistor 14, the drain D and the source S of the NMOS transistor 14 are turned on, and at this time, the drain D of the NMOS transistor 14 is pulled low. Conversely, when the microcontroller 13 sends a low signal to the gate G of the NMOS transistor 14, the drain D of the NMOS transistor 14 is disconnected from the source S, and at this time, the drain D of the NMOS transistor 14 remains in a high state.
The grid G of the PMOS tube 15 is electrically connected with the drain D of the NMOS tube 14, the source S of the PMOS tube 15 is electrically connected with the positive electrode of the power supply, a capacitor 16 is connected between the drain D of the PMOS tube 15 and the ground terminal, and a node between the capacitor 16 and the drain D of the PMOS tube 15 is a power supply output pin VPX_OUT. Therefore, the on/off state between the drain D and the source S of the PMOS transistor 15 is affected by the gate G of the PMOS transistor 15, i.e., the drain D of the NMOS transistor 14.
When the microcontroller 13 sends a high level signal to the gate G of the NMOS transistor 14, the drain D of the NMOS transistor 14 is pulled down, and the gate G of the PMOS transistor 15 is also in a low level state, and accordingly, the drain D and the source S of the PMOS transistor 15 are turned on, so that a voltage signal of 12V can be output from the power output pin vpx_out. Conversely, when the microcontroller 13 sends a low level signal to the gate G of the NMOS transistor 14, the drain D of the NMOS transistor 14 remains in a high level state, and at this time, the gate G of the PMOS transistor 15 is also in a high level state, and accordingly, the drain D of the PMOS transistor 15 is disconnected from the source S, so that no voltage signal can be output from the power output pin vpx_out.
Therefore, in the embodiment of the utility model, two different types of MOS tubes can be matched with the microcontroller 13 to realize automatic switching of the on-off state of the power output pin VPX_OUT.
Optionally, referring to fig. 4, the expansion board further includes a signal acquisition device 17, a display driving device 18, and a display device 19;
the signal acquisition device 17 is connected between the microcontroller 13 and the first VPX connector 11 and is used for acquiring current and voltage of a core board connected with the expansion board card;
the display driving device 18 is connected between the microcontroller 13 and the display device 19 for driving the display device 19 to show the power of the core board.
Specifically, as illustrated in fig. 4, in one embodiment, the expansion board further includes a signal acquisition device 17, a display driving device 18, and a display device 19. The signal acquisition device 17 can pass through one path I 2 The C bus is connected between the microcontroller 13 and the first VPX connector 11, the signal acquisition device 17 can acquire current and voltage parameters on the connected core board 30 by using pins of the first VPX connector 11, and the current and voltage parameters can be acquired by I 2 The C bus is transmitted to the microcontroller 13, and the microcontroller 13 can obtain the power value of the core board 30 through operation processing, and then convert the power value into the display driving device 18 and the displayThe data format supported by the element 19 is passed by the microcontroller 13 through the other path I 2 The C bus may transmit data to be displayed to display driver device 18, and display driver device 18 may drive display device 19 to display power from core board 30. The above-mentioned I for connecting the signal acquisition device 17 and the first VPX connector 11 2 The software protocol corresponding to the C bus is IPMB (Intelligent Platform Management Bus ) management protocol, I 2 C bus, i.e. its physical layer description, with IPMB management protocol and I 2 The C bus may obtain voltage, temperature, fan speed, processor or bus failure, FRU (Field Replace Unit, field replaceable unit) information, etc. of the core board 30.
For example, the signal acquisition device 17 may include an acquisition chip and a precision resistor, where the acquisition chip and the precision resistor may transmit the acquired real-time voltage and current to the microcontroller 13, and the microcontroller 13 multiplies the current and the voltage to obtain a power value. The display device 19 selected may be a digital tube and the display driver device 18 may be a digital tube 2 And converting the power parameters transmitted by the C protocol into a format supported by GPIO, and illuminating the nixie tube through the control of the level height to display the corresponding real-time power value. Of course, in addition to the above, the display device 19 may be another display device such as an LED screen or a liquid crystal screen, and accordingly, the display driving device 18 may be a corresponding driving chip.
Therefore, the embodiment of the utility model can also realize the visual display of the real-time power of the core board on the expansion board card, so that a tester can accurately monitor the power consumption of the core board.
Alternatively, referring to fig. 5, the number of the first VPX connectors 11 is two;
after the two first VPX connectors 11 are electrically connected to the microcontroller 13, they are electrically connected to a set of the transmission interfaces 10, respectively, so as to implement data communication between the two core boards 30.
Specifically, as illustrated in fig. 5, in one embodiment, there may be two first VPX connectors 11, and each first VPX connector 11 may be used to connect to one core board 30. When two core boards 30 are connected at the same time using such an expansion board, data communication between the two core boards 30 can be achieved by a BMC (Baseboard Management Controller ) module integrated on the core board 30 and the microcontroller 13 on the expansion board. For example, in fig. 5, after the two core boards 30 on the left and right are respectively connected to the first VPX connector 11 of the expansion board, each BMC module may transmit data to the microcontroller 13 through the first VPX connector 11, so that the microcontroller 13 may implement bidirectional data communication between the two core boards 30.
Optionally, referring to fig. 6, a protection device 20 is connected to a signal line between the USB interface 121 and the first VPX connector 10.
Specifically, as shown in fig. 6, in an embodiment, in order to avoid the damage of the data transmitted by the USB interface 121 caused by the interference electric signal, a protection device 20 may be further connected to the signal line between the USB interface 121 and the first VPX connector 10, where the protection device 20 may be one or a combination of several of a varistor, a TVS (Transient Voltage Suppressor, transient diode), an ESD (electrostatic discharge) suppressor, etc., and may be determined according to the specific type of the applied interface circuit, so as to achieve the best protection effect.
Optionally, referring to fig. 6, the protection device 20 includes a common mode inductor 201 and a TVS 202;
each signal line between the USB interface 121 and the first VPX connector 10 is connected in series with one common mode inductor 201, and each signal line between the USB interface 121 and the first VPX connector 10 is connected in parallel with one TVS 202.
Specifically, as illustrated in fig. 6, in one embodiment, the aforementioned protection device 20 may include a common mode inductor 201 and a TVS 202. The common-mode inductor 201 is connected in series to each signal line between the USB interface 121 and the first VPX connector 10, and filters out a common-mode signal in the transmitted electrical signal to suppress common-mode interference. Each signal line of the USB interface 121 and the first VPX connector 10 is connected in parallel to one TVS 202, and the TVS 202 can eliminate electrostatic interference during signal transmission. As in the illustration of fig. 6, the number of TVS 202 may be one while being connected in parallel with each signal line. Of course, TVS 202 may also be connected in parallel individually on each signal line.
Optionally, the expansion board further comprises a change-over switch, and the circuit board 10 is provided with an ATX power interface and a DC power interface;
the change-over switch is respectively connected among the ATX power interface, the DC power interface and the first VPX connector, and is used for the VPX connector to select to use an ATX power supply or a DC power supply.
Specifically, in one embodiment, the expansion board card further includes a switch that is optionally soldered on the circuit board 10, and an ATX (Advanced Technology Extended, ATX motherboard structure) power interface and a DC power interface are disposed on the circuit board 10, where the ATX power interface and the DC power interface are both connected to the first VPX connector 11. The change-over switch is located between ATX power interface, DC power interface and first VPX connector 11, when the change-over switch switches to the ATX power interface, adopts the ATX power to supply power as the core board, and when the change-over switch switches to the DC power interface, adopts the DC power to supply power as the core board. Therefore, the expansion board card of the embodiment of the utility model can realize compatible design of different power supplies by arranging two different types of power interfaces and the change-over switch.
The embodiment of the utility model also provides computer equipment, which comprises any expansion board card.
In the embodiment of the utility model, any of the expansion board cards can be used in computer equipment, and the applied computer equipment can be an industrial control computer in the industrial field. Therefore, more rich interfaces can be expanded for the industrial control computer to realize data transmission with more different types of peripheral equipment.
Optionally, referring to fig. 7, the computer device further comprises a core board 30 provided with a second VPX connector 31, the second VPX connector 31 being inter-connected with the first VPX connector 11.
Specifically, as shown in fig. 7, the computer device according to the embodiment of the present utility model further includes a core board 30, and the core board 30 is a module that can be used together with the expansion board card, and the second VPX connector 31 is welded and fixed on the circuit board of the core board 30. It should be noted that, in order to clearly and simply embody the plugging of the core board 30 and the expansion board, other interfaces and functions on the expansion board are omitted in fig. 7, one of the second VPX connector 31 and the first VPX connector 11 is a male connector, and the other is a female connector. When the computer equipment is used, the first VPX connector 11 and the second VPX connector 31 are plugged together, so that the conversion expansion of the interface of the core board 30 can be realized.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.
The foregoing has outlined rather broadly the more detailed description of the utility model in order that the detailed description of the principles and embodiments of the utility model may be better understood, and in order that the present utility model may be better understood; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (10)

1. An expansion board card, characterized in that the expansion board card comprises a circuit board and a first VPX connector;
the pins of the first VPX connector are welded and fixed with the circuit board, and are respectively and simultaneously electrically connected with transmission interfaces with different function types so as to carry out data communication to each interface in the transmission interfaces;
the transmission interface at least comprises a USB interface, an RS232 interface, an RS422 interface, a JTAG interface and a BMC burning interface.
2. The expansion board of claim 1, further comprising a microcontroller, wherein the first VPX connector is electrically connected to the microcontroller;
the microcontroller is used for controlling the on-off of a power supply output pin of the first VPX connector; and/or the number of the groups of groups,
the microcontroller is used for calculating the power value of the core board connected with the expansion board card.
3. The expansion board of claim 2, further comprising an NMOS tube and a PMOS tube;
the grid electrode of the NMOS tube is electrically connected with any pin of the microcontroller, the drain electrode of the NMOS tube is electrically connected with the anode of an external power supply, and the source electrode of the NMOS tube is grounded;
the grid electrode of the PMOS tube is electrically connected with the drain electrode of the NMOS tube, the source electrode of the PMOS tube is electrically connected with the anode of an external power supply, and a capacitor is connected between the drain electrode of the PMOS tube and the grounding end and is connected with the power supply output pin, so that the microcontroller controls the on-off of the power supply output pin.
4. The expansion board of claim 2, further comprising a signal acquisition device, a display drive device, and a display device;
the signal acquisition device is connected between the microcontroller and the first VPX connector and is used for acquiring current and voltage of a core board connected with the expansion board card;
the display driving device is connected between the microcontroller and the display device and used for driving the display device to display the power of the core board.
5. The expansion board of claim 2, wherein the number of first VPX connectors is two;
and after the two first VPX connectors are electrically connected with the microcontroller, the two first VPX connectors are electrically connected with a group of transmission interfaces respectively so as to realize bidirectional data communication between the two core boards.
6. The expansion board of any of claims 1-5, wherein a guard is connected to a signal line between the USB interface and the first VPX connector.
7. The expansion board of claim 6, wherein the protection device comprises a common mode inductor and a TVS;
each signal wire between the USB interface and the first VPX connector is connected with one common-mode inductor in series, and each signal wire between the USB interface and the first VPX connector is connected with one TVS in parallel.
8. The expansion board of any of claims 1-5, further comprising a switch, wherein the circuit board has an ATX power interface and a DC power interface disposed thereon;
the change-over switch is respectively connected among the ATX power interface, the DC power interface and the first VPX connector and is used for the VPX connector to select to use an ATX power supply or a DC power supply.
9. A computer device comprising the expansion board card of any of claims 1 to 8.
10. The computer device according to claim 9, further comprising a core board provided with a second VPX connector, the second VPX connector being inter-connected with the first VPX connector.
CN202320704026.9U 2023-04-03 2023-04-03 Expansion board card and computer equipment Active CN220020207U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320704026.9U CN220020207U (en) 2023-04-03 2023-04-03 Expansion board card and computer equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320704026.9U CN220020207U (en) 2023-04-03 2023-04-03 Expansion board card and computer equipment

Publications (1)

Publication Number Publication Date
CN220020207U true CN220020207U (en) 2023-11-14

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