CN211786841U - Double-screen touch display and calculation integrated machine based on calculation card - Google Patents
Double-screen touch display and calculation integrated machine based on calculation card Download PDFInfo
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- CN211786841U CN211786841U CN202020047383.9U CN202020047383U CN211786841U CN 211786841 U CN211786841 U CN 211786841U CN 202020047383 U CN202020047383 U CN 202020047383U CN 211786841 U CN211786841 U CN 211786841U
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Abstract
The utility model discloses a double screen takes touch display computer integrated machine based on calculation card, including computer housing, computer circuit board, calculation card, computer circuit board includes: the computer comprises a data communication and power supply interface, a USB expansion circuit, a first video gain circuit, a first display screen, a second video gain circuit and a second display screen, wherein the data communication and power supply interface, the USB expansion circuit, the first video gain circuit, the first display screen, the second video gain circuit and the second display screen are arranged in a computer shell through a computer circuit board; the first display screen is used for displaying the first path of video signal; and the second display screen displays the second path of video signals. The intel computing card (computer card) is used as a computing unit, when a user uses the computer card, the user can insert or pull out the computing card according to the requirement, the use is more flexible and convenient, the privacy of data is high, the computing card is relatively light and can be carried about, and the data of the user is not interfered with each other.
Description
Technical Field
The utility model relates to a computer technology field especially relates to a double screen area touch display calculates all-in-one based on calculate card.
Background
Most of the existing double-screen computers in the market are the same as desktop computers, and two display screens are driven by one case respectively through two screens. When the machine box is used, a worker operates the machine box through the two display screens. The operating system and the working files are respectively installed in the case, the case is relatively heavy and cannot be carried about, if a certain worker fails to start due to system errors in the using process, all workers cannot use the computer, and certain loss is necessarily brought under the condition.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide a double screen area touch display calculation all-in-one based on calculation card.
A computer housing;
a computer circuit board disposed within the computer housing;
the computer circuit board is electrically connected with the computer card;
the computer circuit board includes:
the data communication and power supply interface is used for being electrically connected with the computing card so as to lead out the data communication interface and the power supply interface of the computing card;
the USB expansion circuit is connected with the data communication and power supply interface and is used for expanding a USB interface on the data communication and power supply interface;
the first video gain circuit is connected with the data communication and power supply interface and is used for performing video gain and/or conversion on a first path of video signals output by the computing card and outputting the video signals;
the first display screen is connected with the video signal output end of the first video gain circuit so as to display the first path of video signal;
the second video gain circuit is connected with the data communication and power supply interface and is used for performing video gain and/or conversion on a second path of video signals output by the computing card and outputting the second path of video signals;
and the second display screen is connected with the HDMI video signal output end of the second video gain circuit so as to display the second path of video signals.
Further, according to an embodiment of the present invention, the first video gain circuit includes:
the first video gain circuit is connected with the data communication and power supply interface through the HDMI video gain chip;
and the HDMI interface is connected with the HDMI video gain chip and is used for outputting the HDMI video signals converted by the HDMI video gain chip.
Further, according to an embodiment of the present invention, the USB expansion circuit includes:
and the USB expansion circuit is connected with the data communication and power supply interface through the first USB circuit and expands the USB interface on the data communication and power supply interface through the first USB circuit.
Further, according to an embodiment of the present invention, the first USB circuit includes:
the first USB circuit is connected with the data communication and power supply interface through the first USB expansion chip;
the first USB interface is connected with the first USB expansion chip so as to lead out an expansion USB interface of the first USB circuit.
Further, according to an embodiment of the present invention, the USB expansion circuit further includes:
the second USB circuit is connected with the first USB circuit so as to expand an expanded USB interface of the first USB circuit.
Further, according to an embodiment of the present invention, the second USB circuit includes:
the second USB circuit is connected with the first USB circuit through the second USB expansion chip;
and the second USB interface is connected with the second USB expansion chip so as to lead out an expansion USB interface of the second USB circuit.
Further, according to the utility model discloses an embodiment, USB expander circuit still includes USB power supply circuit, USB power supply circuit respectively with input power, first USB circuit and second USB circuit connection, with will input power carries out behind the voltage conversion does first USB circuit, second USB circuit and USB keyboard circuit supply power.
Further, according to an embodiment of the present invention, the USB power circuit includes:
the USB power supply circuit is connected with the output power supply through the first USB power supply circuit so as to convert the voltage of the input power supply into a first USB power supply voltage and output the first USB power supply voltage;
a second USB power supply circuit connected to the first USB power supply circuit to convert the first USB supply voltage to a second USB supply voltage;
a third USB power supply circuit connected to the first USB power supply circuit to convert the first USB supply voltage to a third USB supply voltage;
a fourth USB power supply circuit connected to the first USB power supply circuit to convert the first USB supply voltage to a fourth USB supply voltage.
Further, according to an embodiment of the present invention, the USB power supply circuit further includes a fifth USB power supply circuit, the fifth USB power supply circuit being connected to the first USB power supply circuit to convert the first USB supply voltage into a fifth USB supply voltage;
and the flat cable interface circuit is respectively connected with the first USB circuit and the second USB circuit so as to lead out the expansion interfaces of the first USB circuit and the second USB circuit.
Further, according to an embodiment of the present invention, the computer circuit board further includes a mass storage circuit, the mass storage circuit is connected to the data communication and power supply interface, and the mass storage circuit includes a storage device for storing the output data of the computing card;
the mass storage circuit further comprises:
and the storage data interface is connected with the data communication and power supply interface.
The utility model is implemented by arranging the computer circuit board in the computer shell; the computer card is electrically connected with the computer circuit board; the data communication and power supply interface on the computer circuit board is used for electrically connecting with the computing card, and the first video gain circuit performs video gain and/or conversion on a first path of video signals output by the computing card, outputs the video signals and outputs the video signals; the first display screen is used for displaying the first path of video signal; the second video gain circuit outputs and outputs the second path of video signals output by the computing card after video gain and/or conversion; and the second display screen displays the second path of video signals. By adopting the intel computing card (computer card) as a computing unit, when the user uses the computer card, the user can insert or extract the computing card according to the requirement, the use is more flexible and convenient, the privacy of data is high, and the like, so that different use requirements of the user in different scenes can be met. The computing card is relatively light and can be carried about, data of users are not interfered with each other, and the use of other users is prevented from being influenced when the user cannot start due to errors.
Drawings
Fig. 1 is a schematic structural diagram of a display all-in-one machine based on a computing card according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a data communication and power supply interface circuit provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first video gain circuit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second video gain circuit according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a first USB circuit structure according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a TYPE-C USB circuit structure provided in an embodiment of the present invention;
fig. 7 is a schematic diagram of a second USB circuit structure according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a circuit structure of a USB keyboard according to an embodiment of the present invention;
fig. 9 is a schematic diagram of a USB power circuit according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a mass storage circuit according to an embodiment of the present invention;
fig. 11 is a scene diagram of the display all-in-one machine based on the computing card provided by the embodiment of the present invention.
Reference numerals:
a data communication and power supply interface 10;
a first video gain circuit 20;
a first HDMI interface 201;
a second video gain circuit 30;
a first USB circuit 40;
a TYPE-C TYPE USB circuit 50;
a second USB circuit 60;
a USB keyboard circuit 70;
a USB power supply circuit 80;
a mass storage circuit 90.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
In order to make the technical field person understand the scheme of the present invention better, the following will combine the drawings in the embodiments of the present invention to clearly and completely describe the technical scheme in the embodiments of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 and 2, the embodiment of the utility model provides a double screen area touch display calculates all-in-one based on calculation card, a serial communication port, include: the computer comprises a computer shell, a computer circuit board and a computer card, wherein the computer circuit board is arranged in the computer shell; the computer card is electrically connected with the computer circuit board.
The computer circuit board includes: the data communication and power supply interface 10 is used for being electrically connected with the computing card so as to lead out the data communication interface and the power supply interface of the computing card; the data communication and power supply interface 10 is connected with the computing card so as to lead out the data communication interface and the power supply interface of the computing card; in an embodiment of the present invention, the computing card is a computing card of Intel (Intel) corporation, the computing card may include any one of a processor of I3 model, a processor of I5 model, a processor of I7 model, and a processor of I8 model, and the computing card may further include an internal memory, a power circuit, and the like, so as to constitute a computing card minimum system. The computing card performs data communication with external devices through the data communication and power supply interface 10, and introduces power into the computing card, thereby supplying power to each functional module in the computing card. That is, through the data communication and power supply interface 10, the peripheral device can be communicated with and the power supply can be introduced to supply power to the minimum system in the computing card. The computer card can adopt computer cards of Intel corporation, such as CD1P64GK, CD1C64GK, CD1M3128MK, and the like, and the integrated computer card is in a card shape and has the characteristic of small volume, so that the miniaturization of a computer is possible.
The USB expansion circuit is connected with the data communication and power supply interface 10 and is used for expanding a USB interface on the data communication and power supply interface 10; since computer Card type computing cards from Intel corporation have relatively few external communication interfaces, particularly USB interfaces. In practical application, different external devices are connected with the computing card through the USB interface in a communication manner, and the USB expansion circuit is connected with the USB interface of the computing card through the data communication and power supply interface 10 so as to expand the USB interface through the USB expansion circuit. Therefore, the USB external interface can be increased, and the USB connection of various input and output devices is met.
Referring to fig. 3 and 4, the computer circuit board includes two HDMI gain circuits to connect to the two displays, respectively, and the two HDMI gain circuits are connected to the data communication and power supply interface 10, respectively, and are used to perform video gain and/or conversion on the video signal output by the computing card and output the video signal; the HDMI gain circuit is connected to a video interface output terminal of the computing card through the data communication and power supply interface 10, so as to convert the video signal output by the computing card, perform video gain and/or conversion, output the video signal, and output the video signal through the HDMI interface. In this way, the display device can be connected to the display device through the HDMI interface, and the display device can display and play video.
The utility model is implemented by arranging the computer circuit board in the computer shell; the computer card is electrically connected with the computer circuit board; the data communication and power supply interface 10 on the computer circuit board is used for electrically connecting with a computing card, and a first video gain circuit 20 performs video gain and/or conversion on a first path of video signals output by the computing card, outputs the video signals and outputs the video signals; the first display screen is used for displaying the first path of video signal; the second video gain circuit 30 performs video gain and/or conversion on the second path of video signals output by the computing card and outputs the second path of video signals; and the second display screen displays the second path of video signals. By adopting the intel computing card (computer card) as a computing unit, when the user uses the computer card, the user can insert or extract the computing card according to the requirement, the use is more flexible and convenient, the privacy of data is high, and the like, so that different use requirements of the user in different scenes can be met. The computing card is relatively light and can be carried about, data of users are not interfered with each other, and the use of other users is prevented from being influenced when the user cannot start due to errors.
Referring to fig. 3 and 4, the HDMI gain circuit includes: the HDMI video gain circuit is connected with the data communication and power supply interface 10 through the HDMI video gain chip; the HDMI video format conversion is carried out on the video signal output by the calculating card through the HDMI video gain chip, so that the circuit is simple, and the size of the circuit board is small. The HDMI is connected with the HDMI video gain chip and is used for outputting the HDMI video signals converted by the HDMI video gain chip; the HDMI display device can be connected through an HDMI interface, and videos are displayed through the HDMI display device. The HDMI interface may be an HDMI standard interface to facilitate connection.
Referring to fig. 5, the USB expansion circuit includes: the first USB circuit 40, the USB expansion circuit is connected with the data communication and power supply interface 10 through the first USB circuit 40, and the USB interface on the data communication and power supply interface 10 is expanded through the first USB circuit 40; the USB interface of the computing card may be extended by the first USB circuit 40. Therefore, a plurality of USB interfaces can be expanded, for example, one USB interface of the computing card is expanded into five USB interfaces for being connected with peripheral equipment.
Referring to fig. 5, the first USB circuit 40 includes: the USB interface circuit comprises a first USB expansion chip, a first USB interface and a TYPE-C TYPE USB circuit 50, wherein the first USB circuit 40 is connected with the data communication and power supply interface 10 through the first USB expansion chip; the USB interface of the computing card can be expanded through the first USB expansion chip. A plurality of USB interfaces can be expanded, for example, one USB interface of the computing card is expanded to five USB interfaces for being used by peripheral connection. The TYPE-C USB circuit 50 is connected to the first USB circuit 40 to convert an extended USB interface of the first USB circuit 40 into a TYPE-C USB interface; an extended USB interface of the first USB circuit 40 can be converted to a TYPE-C USB interface by the TYPE-C USB circuit 50. Therefore, the TYPE-C TYPE USB equipment can be connected, and data transmission between the computing card and the TYPE-C TYPE USB equipment and power supply of a power supply are achieved.
Referring to fig. 6, TYPE-C USB circuit 50 includes: a TYPE-C signal conversion chip and a TYPE-C USB interface, wherein the TYPE-C USB circuit 50 is connected with the first USB circuit 40 through the TYPE-C signal conversion chip, and the TYPE-C signal conversion chip is used for converting an extended USB signal of the first USB circuit 40 into a TYPE-C USB signal; because the signal characteristic of TYPE-C TYPE USB is not completely the same as USB2.0, an extended USB signal of the first USB circuit 40 and a TYPE-C TYPE signal can be converted into each other by the TYPE-C TYPE signal conversion chip, so that the TYPE-C TYPE USB interface is connected to the TYPE-C TYPE USB device to complete correct mutual transmission of data.
The TYPE-C TYPE USB interface is respectively connected with the TYPE-C TYPE signal conversion chip and the data communication and power supply interface 10 so as to lead out the TYPE-C TYPE USB signal; can draw out the USB data line of TYPE-C TYPE signal conversion chip through TYPE-C TYPE USB interface to be used for connecting external TYPE-C TYPE USB equipment, convenience of customers inserts TYPE-C TYPE USB equipment.
Referring to fig. 7, the USB expansion circuit further includes a second USB circuit 60, wherein the second USB circuit 60 is connected to the first USB circuit 40 to expand an expansion USB interface of the first USB circuit 40; is connected with an extended USB interface of the first USB circuit 40 through the second USB circuit 60. Thus, an extended USB interface to the first USB circuit 40 can be further extended, and multiple USB interfaces can be extended. For example, in the embodiment of the present invention, the second USB circuit 60 can extend four USB interfaces, and the four USB interfaces extended by the second USB circuit 60 can be used to connect some USB devices with relatively low speed, so as to satisfy the requirement that more peripheral devices access to the external interface (data communication and power supply interface 10) of the computing card through the USB interface.
Referring to fig. 7 and 8, the second USB circuit 60 includes: the second USB circuit 60 is connected with the first USB circuit 40 through the second USB expansion chip; the USB interface of the first USB circuit 40 may be extended by the second USB extension chip. A plurality of USB interfaces may be expanded, for example, one USB interface of the first USB circuit 40 may be expanded into four USB interfaces for peripheral connection.
The second USB interface is connected to the second USB expansion chip to lead out an expansion USB interface of the second USB circuit 60; through the second USB interface, an extended USB interface of the second USB extended chip can be led out for connecting USB peripheral equipment.
The USB keyboard circuit 70 is connected to an extended USB interface of the second USB circuit 60; through the USB keyboard circuit 70, an extended USB interface of the second USB extended chip can be led out for connection of a USB keyboard device.
Referring to fig. 8, the keyboard circuit includes: the keyboard circuit is connected with an extended USB interface of the second USB circuit 60 through the USB multiplexing switch; the USB transmission channel can be selected through the USB multiplexing switch, so that two keyboard devices can be connected by selecting one of the two keyboard devices. For example, when a USB keyboard wired keyboard and a bluetooth wireless keyboard are connected, the USB keyboard wired keyboard or the bluetooth wireless keyboard may be selected as the keyboard input device through the USB multiplexing switch. The USB keyboard interface is connected with the USB multiplexing switch; the USB keyboard interface can be connected with a USB keyboard so as to connect the USB keyboard to the computing card and serve as external input equipment of the computing card.
Referring to fig. 9, the USB expansion circuit further includes a USB power circuit 80, wherein the USB power circuit 80 is respectively connected to the input power, the first USB circuit 40, the second USB circuit 60 and the USB keyboard circuit 70, so as to supply power to the first USB circuit 40, the second USB circuit 60 and the USB keyboard circuit 70 after performing voltage conversion on the input power; the USB power circuit 80 can convert the voltage of the input power and output the USB power voltage to power the USB circuits.
Referring to fig. 9, the USB power supply circuit 80 includes: the power supply comprises a first USB power supply circuit 80, a second USB power supply circuit 80, a third USB power supply circuit 80, a fourth USB power supply circuit 80 and a fifth USB power supply circuit 80, wherein the USB power supply circuit 80 is connected with an output power supply through the first USB power supply circuit 80 so as to convert the voltage of an input power supply into a first USB power supply voltage and output the first USB power supply voltage; the first USB power circuit 80 includes a first voltage conversion chip and peripheral circuits thereof, and the first voltage conversion chip can input power for voltage conversion and then output the power to supply power to each USB circuit.
The second USB power supply circuit 80 is connected to the first USB power supply circuit 80 to convert the first USB supply voltage into a second USB supply voltage; the second USB power circuit 80 includes a second voltage conversion chip and its peripheral circuits, and the second voltage conversion chip can convert the voltage of the first USB power supply and output the converted voltage to supply power to the TYPE-C USB interface.
The third USB power supply circuit 80 is connected to the first USB power supply circuit 80 to convert the first USB supply voltage into a third USB supply voltage; the third USB power circuit 80 includes a third voltage conversion chip and its peripheral circuits, and the third voltage conversion chip can convert the voltage of the first USB power supply and output the converted voltage to supply power to the first USB interface.
The fourth USB power supply circuit 80 is connected to the first USB power supply circuit 80 to convert the first USB supply voltage into a fourth USB supply voltage; the fourth USB power circuit 80 includes a fourth voltage conversion chip and its peripheral circuits, and the fourth voltage conversion chip can convert the voltage of the first USB power supply and output the converted voltage to supply power to the second USB interface.
The fifth USB power supply circuit 80 is connected to the first USB power supply circuit 80 to convert the first USB supply voltage into a fifth USB supply voltage; the fifth USB power circuit 80 includes a fifth voltage conversion chip and peripheral circuits thereof, and the fifth voltage conversion chip can convert the voltage of the first USB power supply voltage and output the voltage to supply power to the USB keyboard interface.
The first USB power circuit 80 converts the power voltage of the input power to supply power to each USB power circuit 80, and the second USB power circuit 80 converts the voltage to supply power to each USB interface. Therefore, the power supply of each USB interface is relatively independent, the power supply stability of each USB interface can be ensured, and the power supply instability of each interface caused by the mutual interference of the power supply between each interface is avoided.
Referring to fig. 10, the computer circuit board further includes a mass storage circuit 90, the mass storage circuit 90 is connected to the data communication and power supply interface 10, and the mass storage circuit 90 includes a storage device for storing the output data of the computing card; the mass storage circuit 90 is connected to the computing card through the data interface and the data communication and power supply interface 10 to store data output by the computing card. By disposing the memory device on the circuit board, the volume can be reduced, reducing the overall volume of the circuit board.
Referring to fig. 10, the mass storage circuit 90 further includes: the storage data interface is connected with the data communication and power supply interface 10; the data interface is a SATA interface and is connected with the computing card through the SATA interface and the data communication and power supply interface 10. The SATA interface may connect an external mass storage device. To expand the memory.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent replacements may be made for some of the technical features of the embodiments. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (10)
1. The utility model provides a double screen area touch display calculation all-in-one based on calculation card which characterized in that includes:
a computer housing;
a computer circuit board disposed within the computer housing;
the computer circuit board is electrically connected with the computer card;
the computer circuit board includes:
the data communication and power supply interface is used for being electrically connected with the computing card so as to lead out the data communication interface and the power supply interface of the computing card;
the USB expansion circuit is connected with the data communication and power supply interface and is used for expanding a USB interface on the data communication and power supply interface;
the first video gain circuit is connected with the data communication and power supply interface and is used for performing video gain and/or conversion on a first path of video signals output by the computing card and outputting the video signals;
the first display screen is connected with the video signal output end of the first video gain circuit so as to display the first path of video signal;
the second video gain circuit is connected with the data communication and power supply interface and is used for performing video gain and/or conversion on a second path of video signals output by the computing card and outputting the second path of video signals;
and the second display screen is connected with the HDMI video signal output end of the second video gain circuit so as to display the second path of video signals.
2. The computing card based dual screen touch display all in one computing machine of claim 1, wherein the first video gain circuit comprises:
the first video gain circuit is connected with the data communication and power supply interface through the HDMI video gain chip;
and the HDMI interface is connected with the HDMI video gain chip and is used for outputting the HDMI video signals converted by the HDMI video gain chip.
3. The computing card-based dual-screen touch-display all-in-one computer according to claim 1, wherein the USB expansion circuit comprises:
and the USB expansion circuit is connected with the data communication and power supply interface through the first USB circuit and expands the USB interface on the data communication and power supply interface through the first USB circuit.
4. The computing card-based dual-screen touch-display all-in-one computer according to claim 3, wherein the first USB circuit comprises:
the first USB circuit is connected with the data communication and power supply interface through the first USB expansion chip;
the first USB interface is connected with the first USB expansion chip so as to lead out an expansion USB interface of the first USB circuit.
5. The computing card-based dual-screen touch-display all-in-one computer according to claim 3, wherein the USB expansion circuit further comprises:
the second USB circuit is connected with the first USB circuit so as to expand an expanded USB interface of the first USB circuit.
6. The computing card-based dual-screen touch-display all-in-one computer according to claim 5, wherein the second USB circuit comprises:
the second USB circuit is connected with the first USB circuit through the second USB expansion chip;
and the second USB interface is connected with the second USB expansion chip so as to lead out an expansion USB interface of the second USB circuit.
7. The computing card-based dual-screen touch display and calculation all-in-one machine is characterized in that the USB expansion circuit further comprises a USB power circuit, and the USB power circuit is respectively connected with an input power supply, a first USB circuit and a second USB circuit so as to supply power to the first USB circuit, the second USB circuit and a USB keyboard circuit after voltage conversion is carried out on the input power supply.
8. The computing card-based dual-screen touch-display all-in-one computer according to claim 7, wherein the USB power circuit comprises:
the USB power supply circuit is connected with the output power supply through the first USB power supply circuit so as to convert the voltage of the input power supply into a first USB power supply voltage and output the first USB power supply voltage;
a second USB power supply circuit connected to the first USB power supply circuit to convert the first USB supply voltage to a second USB supply voltage;
a third USB power supply circuit connected to the first USB power supply circuit to convert the first USB supply voltage to a third USB supply voltage;
a fourth USB power supply circuit connected to the first USB power supply circuit to convert the first USB supply voltage to a fourth USB supply voltage.
9. The computing card-based dual-screen touch-display all-in-one computer according to claim 8, wherein the USB power circuit further comprises a fifth USB power circuit connected to the first USB power circuit to convert the first USB supply voltage to a fifth USB supply voltage;
and the flat cable interface circuit is respectively connected with the first USB circuit and the second USB circuit so as to lead out the expansion interfaces of the first USB circuit and the second USB circuit.
10. The computing card-based dual-screen touch-display all-in-one computer according to claim 1, wherein the computer circuit board further comprises a mass storage circuit, the mass storage circuit is connected with the data communication and power supply interface, and the mass storage circuit comprises a storage device for storing output data of the computing card;
the mass storage circuit further comprises:
and the storage data interface is connected with the data communication and power supply interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020047383.9U CN211786841U (en) | 2020-01-09 | 2020-01-09 | Double-screen touch display and calculation integrated machine based on calculation card |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020047383.9U CN211786841U (en) | 2020-01-09 | 2020-01-09 | Double-screen touch display and calculation integrated machine based on calculation card |
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| CN211786841U true CN211786841U (en) | 2020-10-27 |
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