Expandable tablet computer mainboard and industrial tablet computer

Abstract

The utility model relates to the technical field of industrial tablet personal computers, and provides an expandable tablet personal computer mainboard and an industrial tablet personal computer. The processor is arranged on the mainboard body; the memory chip is arranged on the mainboard body, and the memory chip is connected with the processor; the PCIE M.2 interface is arranged on the mainboard body, and the PCIE M.2 interface is connected with the processor; and the energy storage and power supply module is arranged on the mainboard body, and the energy storage and power supply module is connected with the processor, the memory chip and the PCIE M.2 interface. By arranging the structure of the PCIE M.2 interface, a user can select the NVME solid state hard disks with different storage capacities according to the requirements of application scenes, the capacity expansion effect is achieved, rapid data transmission between the processor and the NVME solid state hard disks is achieved through the PCIE M.2 interface, and the data processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial tablet computers, in particular to an expandable tablet computer mainboard and an industrial tablet computer. Background Art

[0002] Industrial tablet computers are devices designed specifically for the industrial field. They are usually durable and well protected, suitable for working scenarios in various harsh environments, and have a variety of expansion interfaces to meet the communication needs with other industrial equipment during work.

[0003] However, existing industrial tablet computers cannot replace the hard disk, and the hard disk capacity cannot be customized according to usage requirements, which limits the flexibility in data storage. At the same time, due to the limitations of traditional storage media and interface rate limitations, existing industrial tablet computers cannot meet the needs of fast data transmission and processing, which is a problem that cannot be ignored for industrial applications that need to process large amounts of data in real time. In addition, existing industrial tablet computers generally need to be connected to power lines for use, which is inconvenient to use in scenarios where mobile testing is required.

[0004] Therefore, how to enable industrial tablet computers to expand data storage capacity and increase data transmission rate as needed, as well as enhance the flexibility of mobile use, is an urgent problem that needs to be solved. Utility Model Content

[0005] The utility model provides an expandable tablet computer mainboard and an industrial tablet computer, which are used to solve the defects in the prior art that the storage capacity cannot be expanded according to the use demand, the transmission rate is low and the flexibility to move and use cannot be solved.

[0006] The utility model provides an expandable tablet computer mainboard, comprising:

[0007] Main board body;

[0008] A processor is arranged on the mainboard body;

[0009] A memory chip is disposed on the mainboard body, and the memory chip is connected to the processor;

[0010] A PCIE M.2 interface is provided on the mainboard body, the PCIE M.2 interface is connected to the processor, and the PCIE M.2 interface is used to connect to an NVME solid-state drive;

[0011] An energy storage power supply module is arranged on the mainboard body, and the energy storage power supply module is respectively connected to the processor, the memory chip and the PCIE M.2 interface.

[0012] According to the utility model, an expandable tablet computer motherboard, the energy storage power supply module includes a battery interface, a charging interface, a charging chip and a power management chip, all of which are arranged on the motherboard body, the battery interface is respectively connected to the charging chip and the power management chip, the charging interface is connected to the charging chip, and the power management chip is respectively connected to the processor, the memory chip and the PCIE M.2 interface.

[0013] According to the utility model, an expandable tablet computer motherboard, the power management chip is provided with a serial communication port and a voltage output port group, the serial communication port is connected to the processor, the voltage output port group includes a first voltage output end connected to the processor, the power management chip is used to adjust the voltage of the first voltage output end according to the electrical signal of the serial communication port, and the voltage output port group is respectively connected to the memory chip and the PCIE M.2 interface.

[0014] According to the utility model, a mainboard of an expandable tablet computer is provided, wherein a soft start controller and a linear regulator are integrated in the power management chip, the linear regulator is connected to the voltage output port group, and the soft start controller is connected to the linear regulator.

[0015] According to the expandable tablet computer motherboard of the utility model, the serial communication port is an I2C port or an SPI port.

[0016] According to the utility model, an expandable tablet computer motherboard also includes a wireless communication module arranged on the motherboard body, the wireless communication module is connected to the processor, and the wireless communication module is used for wireless communication with external devices.

[0017] According to the expandable tablet computer motherboard of the utility model, the wireless communication module includes a WIFI chip or a Bluetooth chip connected to the processor.

[0018] According to the utility model, an expandable tablet computer motherboard also includes an expansion interface group arranged on the motherboard body, the processor is connected to the expansion interface group, and the expansion interface group is used to connect to external devices.

[0019] According to the utility model, an expandable tablet computer motherboard, the expansion interface group includes at least one interface among an Ethernet interface, a display interface, a camera interface, a headphone interface, a USB interface, a TF card interface, a USART interface, a speaker interface and a switch interface.

[0020] The industrial tablet computer provided by the utility model comprises a shell, a battery, an NVME solid-state hard disk and the above-mentioned expandable tablet computer motherboard, the shell is provided with a cavity, the motherboard body, the battery and the solid-state hard disk are all arranged in the cavity, the battery is connected to the energy storage power supply module, and the NVME solid-state hard disk is connected to the PCIE M.2 interface.

[0021] The utility model provides an expandable tablet computer motherboard and an industrial tablet computer, which have at least the following beneficial effects: the processor processes data information, and the processor stores short-term high-frequency data in the memory chip for quick call. For data that needs long-term storage, the mainboard body is provided with a PCIE M.2 interface, and the PCIE M.2 interface enables the processor to be connected to the NVME solid-state hard disk, and then the long-term stored data is stored in the NVME solid-state hard disk. The PCIE M.2 interface allows high-speed data transmission between the processor and the NVME solid-state hard disk, meets the requirements of low latency and fast data transmission, and enables the processor to quickly read long-term stored data to improve work efficiency. The energy storage power supply module supplies power to the processor, the memory chip and the PCIE M.2 interface, without relying on the power cord for power supply, and is convenient for mobile use to meet the needs of mobile testing and other scenarios. In this way, by providing a structure with a PCIE M.2 interface, users can select NVME solid-state hard disks with different storage capacities according to the needs of the application scenario, so as to achieve the effect of expansion. The PCIE M.2 interface allows fast data transmission between the processor and the NVME solid-state hard disk, improves data processing efficiency, and at the same time realizes flexible mobile use through the structure of the energy storage power supply module, improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural block diagram of one embodiment of an expandable tablet computer motherboard provided by the utility model;

[0024] Figure 2 The utility model provides a structural schematic diagram of one embodiment of an expandable tablet computer motherboard.

[0025] Reference numerals:

[0026] Main board body 100; processor 200; memory chip 300; PCIE M.2 interface 400; energy storage power supply module 500; battery interface 510; charging interface 520; charging chip 530; power management chip 540; wireless communication module 600; expansion interface group 700; Ethernet interface 710; display interface 720; camera interface 730; headphone interface 740; USB interface 750; TF card interface 760; USART interface 770; speaker interface 780; switch interface 790. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Combine the following Figure 1 to Figure 2 The utility model is described as an expandable tablet computer motherboard, comprising:

[0029] Main board body 100;

[0030] The processor 200 is disposed on the mainboard body 100;

[0031] A memory chip 300 is disposed on the mainboard body 100 and is connected to the processor 200;

[0032] A PCIE M.2 interface 400 is provided on the mainboard body 100 , the PCIE M.2 interface 400 is connected to the processor 200 , and the PCIE M.2 interface 400 is used to connect to an NVME solid state drive;

[0033] The energy storage power supply module 500 is disposed on the mainboard body 100 , and the energy storage power supply module 500 is respectively connected to the processor 200 , the memory chip 300 and the PCIE M.2 interface 400 .

[0034] The processor 200 processes the data information. The processor 200 stores the short-term high-frequency data in the memory chip 300 for quick access. For the data that needs to be stored for a long time, the motherboard body 100 is provided with a PCIE M.2 interface 400. The PCIE M.2 interface 400 enables the processor 200 to be connected to the NVME solid-state drive, and then the long-term stored data is stored in the NVME solid-state drive. The PCIE M.2 interface 400 allows high-speed data transmission between the processor 200 and the NVME solid-state drive, meeting the requirements of low latency and fast data transmission, so that the processor 200 can quickly read the long-term stored data to improve work efficiency. The energy storage power supply module 500 supplies power to the processor 200, the memory chip 300 and the PCIE M.2 interface 400, without relying on the power cord for power supply, which is convenient for mobile use to meet the needs of scenarios such as mobile testing. In this way, by providing a structure with a PCIE M.2 interface 400, users can choose NVME solid-state drives with different storage capacities according to the needs of application scenarios to achieve the effect of capacity expansion. The PCIE M.2 interface 400 enables fast data transmission between the processor 200 and the NVME solid-state drive, thereby improving data processing efficiency. At the same time, the structure of the energy storage power supply module 500 enables flexible mobile use, thereby improving convenience of use.

[0035] PCIE (Peripheral Component Interconnect Express) is a high-speed serial interface standard that provides high-bandwidth and low-latency data transmission; PCIE M.2 interface 400 is a small, high-speed, multi-function interface standard for the PCIE bus, suitable for connecting solid-state drives, wireless network cards and other devices, with the characteristics of high-speed transmission, hot-swap support and versatility. NVME (Non-Volatile Memory Express) solid-state drive is a high-performance solid-state drive based on the PCIE bus, which adopts the NVME protocol and has higher data transmission speed and lower latency compared to traditional SATA interface solid-state drives. Therefore, the processor 200 is connected to the NVME solid-state drive through the PCIE M.2 interface 400, which can achieve fast data transmission and improve data processing efficiency.

[0036] It is understandable that the PCIE M.2 interface 400 and the NVME solid-state drive are detachably connected, so the user can replace the NVME solid-state drive with a suitable storage capacity according to the needs of actual applications, thereby achieving the purpose of customizing the required storage space and achieving the effect of capacity expansion.

[0037] In some embodiments of the present invention, the processor 200 may specifically be a ROCKCHIP RK3588S model processing chip.

[0038] In some embodiments of the present invention, there may be multiple memory chips 300, and the number of memory chips 300 is determined according to the capacity and requirements of the memory chips 300 in actual applications. Different memory chips 300 may be of different types or different capacities. For example, there may be three memory chips 300, specifically two LPDDR4 (Low Power Double Data Rate 4) chips and one EMMC (Embedded MultiMediaCard) chip.

[0039] refer to Figure 1 and Figure 2 In some embodiments of an expandable tablet computer motherboard of the utility model, the energy storage power supply module 500 includes a battery interface 510, a charging interface 520, a charging chip 530 and a power management chip 540, all of which are arranged on the motherboard body 100, the battery interface 510 is respectively connected to the charging chip 530 and the power management chip 540, the charging interface 520 is connected to the charging chip 530, and the power management chip 540 is respectively connected to the processor 200, the memory chip 300 and the PCIE M.2 interface 400.

[0040] The battery interface 510 is connected to the battery, and the power management chip 540 obtains power from the battery and converts it into a voltage suitable for the processor 200, the memory chip 300, the PCIE M.2 interface 400 and other components on the mainboard body 100 to work properly. The components on the mainboard body 100 can work normally. The charging interface 520 can be connected to an external power line, and the charging chip 530 obtains power from the charging interface 520 and converts it into a charging voltage and charging current transmitted to the battery to charge the battery. In this way, the effect of flexible and convenient mobile use is achieved, which is conducive to meeting scenarios such as mobile testing and improving the convenience of use.

[0041] In some embodiments of the present invention, the charging interface 520 may be a TYPE-C interface, the battery interface 510 is a lithium battery interface 510, and the storage battery is a lithium battery. The charging chip 530 may be a SC8886QDER model chip.

[0042] In some embodiments of an expandable tablet computer motherboard of the utility model, the power management chip 540 is provided with a serial communication port and a voltage output port group, the serial communication port is connected to the processor 200, the voltage output port group includes a first voltage output end connected to the processor 200, the power management chip 540 is used to adjust the voltage of the first voltage output end according to the electrical signal of the serial communication port, and the voltage output port group is respectively connected to the memory chip 300 and the PCIE M.2 interface 400.

[0043] Since the processing load of the processor 200 will fluctuate during actual operation, the power supply voltage required by the processor 200 will also change. Therefore, the power management chip 540 communicates with the processor 200 through the serial communication port to determine the operating status of the processor 200, and then adjusts the voltage of the first voltage output terminal. This is beneficial to adapt to the changes in the operating status of the processor 200 and provide a suitable operating voltage, which is beneficial to improve the operating efficiency of the processor 200 and reduce the power consumption of the processor 200 when it is idle, thereby saving energy.

[0044] The voltage output port group of the power management chip 540, in addition to the first voltage output terminal, may also include a second voltage output terminal connected to the memory chip 300 and a third voltage output terminal connected to the PCIE M.2 interface 400. The voltage output port group may also include a voltage output terminal for powering other devices on the mainboard body 100.

[0045] In some embodiments of the expandable tablet computer motherboard of the utility model, the power management chip 540 integrates a soft start controller and a linear regulator, the linear regulator is connected to the voltage output port group, and the soft start controller is connected to the linear regulator.

[0046] The linear regulator is connected to the voltage output port group, and the stable voltage output by the linear regulator is transmitted to other devices as the working voltage through the voltage output port group. There can be multiple linear regulators integrated in the power management chip 540. The soft start controller is connected to the linear regulator, so that when the power is turned on, the soft start controller controls the voltage and current output by the linear regulator to gradually increase, so as to reduce the voltage fluctuation and current impact at startup, which is beneficial to protect the devices on the main board body 100.

[0047] In some embodiments of the present invention, a voltage regulation circuit is also integrated in the power management chip 540, and the voltage regulation circuit is respectively connected to the serial communication port and the linear regulator. The voltage regulation circuit is used to adjust the output voltage of the linear regulator according to the electrical signal of the serial communication port.

[0048] The processor 200 sends an adjustment signal through the serial port so that the voltage adjustment circuit adjusts the output voltage of the linear regulator, that is, adjusts the voltage of the voltage output terminal specified in the voltage output port group, thereby achieving the effect of controlling the working voltage of other devices.

[0049] In some embodiments of the expandable tablet computer motherboard of the utility model, the serial communication port is an I2C port or an SPI port.

[0050] The I2C (Inter-Integrated Circuit) port has the advantages of simple connection and low power consumption, and the SPI (Serial Peripheral Interface) port has the advantages of high-speed communication and fast response speed. You can choose to use the I2C port or the SPI port according to the actual application needs.

[0051] In some embodiments of the utility model, the battery management chip can be a chip of the RK806 model. The RK806 chip integrates 10 channels of step-down DC-DC converters and adopts ripple-based control to achieve fast load transient response. The RK806 chip integrates 6 channels of linear regulators, and the input of the linear regulators can be reduced to 2V to achieve high conversion efficiency. At the same time, 5 channels of NMOS linear regulators are integrated, and the output voltages of all linear regulators can be configured through I2C or SPI interfaces.

[0052] refer to Figure 1 and Figure 2 In some embodiments of the expandable tablet computer motherboard of the utility model, it also includes a wireless communication module 600 arranged on the motherboard body 100, the wireless communication module 600 is connected to the processor 200, and the wireless communication module 600 is used for wireless communication with external devices.

[0053] The processor 200 exchanges data information with external devices by wireless communication through the wireless communication module 600, which helps to make the use more flexible and convenient.

[0054] refer to Figure 1 and Figure 2 In some embodiments of the expandable tablet computer motherboard of the utility model, the wireless communication module 600 includes a WIFI chip or a Bluetooth chip connected to the processor 200.

[0055] WIFI communication and Bluetooth communication have the advantages of high transmission rate and wide application range, and can meet the needs of communicating with other external devices.

[0056] In some embodiments of the present invention, the WIFI function circuit and the Bluetooth function circuit can be integrated in the same chip, that is, the same chip has both WIFI communication function and Bluetooth communication function. The wireless communication module 600 can also include an antenna connector implementation on the basis of including a WIFI chip or a Bluetooth chip.

[0057] In some embodiments of the present invention, the wireless communication module 600 may also be other devices with wireless communication functions such as a ZIGBEE chip.

[0058] refer to Figure 1 and Figure 2 In some embodiments of the expandable tablet computer motherboard of the utility model, it also includes an expansion interface group 700 arranged on the motherboard body 100, the processor 200 is connected to the expansion interface group 700, and the expansion interface group 700 is used to connect to external devices.

[0059] During use, the industrial tablet computer needs to be connected to different industrial equipment and devices for testing, maintenance, data exchange and other operations. Therefore, by providing an expansion interface group 700, multiple expansion interfaces are provided to meet the needs of connecting with different devices.

[0060] refer to Figure 1 and Figure 2 In some embodiments of the expandable tablet computer motherboard of the utility model, the expansion interface group 700 includes many interfaces such as an Ethernet interface 710, a display interface 720, a camera interface 730, a headphone interface 740, a USB interface 750, a TF card interface 760, a USART interface 770, a speaker interface 780 and a switch interface 790.

[0061] The Ethernet interface 710 can be connected to the Ethernet connector to realize the function of connecting to Ethernet. Specifically, the Ethernet interface 710 can be a structure such as an optical fiber interface, an RJ45 interface, etc. The display interface 720 is used to connect to the display screen so that the processor 200 displays the required information through the display screen. The display interface 720 can specifically include a MIPI (Mobile Industry Processor Interface) screen interface, a touch screen interface, etc. The headphone interface 740 is used to connect to the headphone to meet the needs of audio participation testing, maintenance, etc. The headphone interface 740 can specifically be a 3.5mm interface. The camera interface 730 is used to connect to the camera to meet the needs of shooting and recording. The USB interface 750 is a commonly used data exchange interface that can easily interact with other devices for data transmission. The TF card interface 760 is used to plug in the TF card so that the processor 200 can read and write to the TF card, thereby realizing memory expansion or fast and convenient data interaction. The USART interface 770 is used to perform full-duplex communication with external devices to realize fast data transmission interaction. The speaker interface 780 is used to connect to the speaker so that the processor 200 can play the required information through the speaker. The switch interface 790 is used to connect buttons to implement functions such as standby, wake-up, and power cut-off. The expansion interface group 700 may include any combination of the above-mentioned expansion interfaces, and may also include other implementation methods such as numerous commonly used expansion interfaces.

[0062] According to application requirements, the above-mentioned various expansion interfaces can be selected and set. In some embodiments of the utility model, the expansion interface group 700 on the mainboard body 100 also includes an Ethernet interface 710, a display interface 720, a camera interface 730, an earphone interface 740, a USB interface 750, a TF card interface 760, a USART interface 770, a speaker interface 780 and a switch interface 790, all of which are connected to the processor 200.

[0063] The utility model also provides an industrial tablet computer, including a shell, a battery, an NVME solid-state hard disk and the above-mentioned expandable tablet computer motherboard, the shell is provided with a cavity, the motherboard body 100, the battery and the solid-state hard disk are all arranged in the cavity, the battery is connected to the energy storage power supply module 500, and the NVME solid-state hard disk is connected to the PCIE M.2 interface 400.

[0064] The processor 200 processes the data information. The processor 200 stores the short-term and high-frequency data in the memory chip 300 for quick access. For data that needs to be stored for a long time, the mainboard body 100 is provided with a PCIE M.2 interface 400. The PCIE M.2 interface 400 enables the processor 200 to be connected to the NVME solid-state drive, and then the long-term stored data is stored in the NVME solid-state drive. The PCIE M.2 interface 400 enables high-speed data transmission between the processor 200 and the NVME solid-state drive, meets the requirements of low latency and fast data transmission, and enables the processor 200 to quickly read long-term stored data to improve work efficiency. The energy storage power supply module 500 obtains electrical energy from the battery to power the processor 200, the memory chip 300 and the PCIE M.2 interface 400, without relying on power cord power supply, and is convenient for mobile use to meet the needs of scenarios such as mobile testing. In this way, by providing a structure with a PCIE M.2 interface 400, users can choose NVME solid-state drives with different storage capacities according to the needs of application scenarios to achieve the effect of capacity expansion. The PCIE M.2 interface 400 enables fast data transmission between the processor 200 and the NVME solid-state drive, thereby improving data processing efficiency. At the same time, the structure of the energy storage power supply module 500 enables flexible mobile use, making the use of the industrial tablet computer more convenient.

[0065] In some embodiments of the industrial tablet computer of the present invention, the shell is provided with a replacement port corresponding to the PCIE M2 interface, and also includes a cover body, which is detachably connected to the shell to cover the replacement port, and a sealing structure is provided between the cover plate and the shell.

[0066] The cover body is detachably connected to the shell. When the NVME solid-state hard drive needs to be replaced, the cover body is disassembled and separated from the shell. The NVME solid-state hard drive can be conveniently separated from the PCIE M2 interface for replacement through the replacement port. After the replacement is completed, the cover body is connected to the shell again to cover the replacement port to seal the cavity. The cover body and the shell can be detachably connected by snapping or screwing. The sealing structure is an implementation method including a sealing ring, which is located between the cover body and the shell. The sealing ring is squeezed between the cover body and the shell so that there is no gap between the cover body and the shell to achieve a sealing effect, which is conducive to meeting the dustproof and waterproof requirements of industrial tablet computers.

[0067] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An expandable tablet computer motherboard, characterized in that: include: Main board body; A processor is arranged on the mainboard body; A memory chip is disposed on the mainboard body, and the memory chip is connected to the processor; A PCIE M.2 interface is provided on the mainboard body, the PCIE M.2 interface is connected to the processor, and the PCIE M.2 interface is used to connect to an NVME solid-state drive; An energy storage power supply module is arranged on the mainboard body, and the energy storage power supply module is respectively connected to the processor, the memory chip and the PCIE M.2 interface.

2. The expandable tablet computer motherboard according to claim 1, characterized in that: The energy storage power supply module includes a battery interface, a charging interface, a charging chip and a power management chip, all of which are arranged on the mainboard body. The battery interface is respectively connected to the charging chip and the power management chip, the charging interface is connected to the charging chip, and the power management chip is respectively connected to the processor, the memory chip and the PCIE M.2 interface.

3. The expandable tablet computer motherboard according to claim 2, characterized in that: The power management chip is provided with a serial communication port and a voltage output port group, the serial communication port is connected to the processor, the voltage output port group includes a first voltage output end connected to the processor, the power management chip is used to adjust the voltage of the first voltage output end according to the electrical signal of the serial communication port, and the voltage output port group is respectively connected to the memory chip and the PCIE M.2 interface.

4. The expandable tablet computer motherboard according to claim 3, characterized in that: The power management chip integrates a soft start controller and a linear regulator, the linear regulator is connected to the voltage output port group, and the soft start controller is connected to the linear regulator.

5. The expandable tablet computer motherboard according to claim 4, characterized in that: The serial communication port is an I2C port or an SPI port.

6. The expandable tablet computer motherboard according to claim 1, characterized in that: It also includes a wireless communication module disposed on the mainboard body, the wireless communication module is connected to the processor, and the wireless communication module is used for wireless communication with external devices.

7. The expandable tablet computer motherboard according to claim 6, characterized in that: The wireless communication module includes a WIFI chip or a Bluetooth chip connected to the processor.

8. The expandable tablet computer motherboard according to claim 1, characterized in that: It also includes an expansion interface group arranged on the main board body, the processor is connected to the expansion interface group, and the expansion interface group is used to connect to external devices.

9. The expandable tablet computer motherboard according to claim 8, characterized in that: The extended interface group includes at least one of an Ethernet interface, a display interface, a camera interface, a headphone interface, a USB interface, a TF card interface, a USART interface, a speaker interface and a switch interface.

10. Industrial tablet computer, characterized by: It comprises a shell, a battery, an NVME solid-state hard disk and an expandable tablet computer motherboard as described in any one of claims 1 to 9, wherein the shell is provided with a cavity, the motherboard body, the battery and the solid-state hard disk are all arranged in the cavity, the battery is connected to the energy storage power supply module, and the NVME solid-state hard disk is connected to the PCIE M.2 interface.

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