Electrical control device and data card read-write power supply module

Abstract

The application provides an electrical control device, which comprises a first data card seat (10), a processor unit (20), a device power supply unit (30), a first one-way circuit and a second one-way circuit. The first data card seat comprises a first power supply pin (11) and a plurality of first function pins (12). The processor unit comprises a processor power input end (21), and when power is connected to the processor power input end, the processor unit can control reading and writing of a data card connected to the plurality of first function pins. The device power supply unit comprises a device power input end (31) and at least one device power supply end (32), the device power supply end is connected to the processor power input end, and when power is connected to the device power input end, the device power supply unit can supply power to the processor unit and the data card through the at least one device power supply end. The first one-way circuit is connected between the device power supply end and the first power supply pin. The second one-way circuit is connected between the first power supply pin and the device power input end. The electrical control device can receive power through the data card seat to realize reading and writing of the data card without wired power supply. The application also provides a data card reading and writing power supply module used in cooperation with the above-mentioned electrical control device.

Description

Technical Field

[0001] This invention relates to the field of automatic control, and in particular to an electrical control device and a power supply module for reading and writing data cards. Background Technology

[0002] Electrical control equipment such as frequency converters and servo controllers typically provide users with data card reading and writing capabilities, allowing them to import and export data by inserting the data card. This requires power to the electrical control equipment, meaning users need to connect the wiring and provide a suitable power source. In practice, electrical control equipment often requires data card reading and writing before actual installation and use for parameter import / export or software upgrades. When there are a large number of electrical control devices, wiring and powering each device individually requires a significant amount of additional work. Summary of the Invention

[0003] The purpose of this invention is to provide an electrical control device that can receive electrical energy through a data card slot without connecting to a power supply, so as to read and write data cards.

[0004] Another objective of this invention is to provide a data card read / write power supply module that can supply power to electrical control equipment through the data card slot of the electrical control equipment, so as to realize the reading and writing of the data card.

[0005] This invention provides an electrical control device, including a first data card slot, a processor unit, a device power supply unit, a first unidirectional circuit, and a second unidirectional circuit. The first data card slot is used for inserting and connecting a data card. The first data card slot includes a first power supply pin and several first functional pins, with the first power supply pin corresponding to the power supply pin of the data card. The processor unit is connected to the several first functional pins and includes a processor power input terminal. When power is connected to the processor power input terminal, the processor unit can control the reading and writing of the data card connected to the several first functional pins. The device power supply unit includes a device power input terminal and at least one device power supply terminal. The device power supply terminal is connected to the processor power input terminal. When power is connected to the device power input terminal, the device power supply unit can supply power to the processor unit and the data card through the at least one device power supply terminal. The first unidirectional circuit connects the device power supply terminal and the first power supply pin, allowing current to flow unidirectionally from the device power supply terminal to the first power supply pin. The second unidirectional circuit connects the first power supply pin and the device power input terminal, allowing current to flow unidirectionally from the first power supply pin to the device power input terminal.

[0006] The electrical control device provided by this invention, with the aid of a first unidirectional circuit and a second unidirectional circuit, can supply power to and read / write data cards in a first data card slot when the device power unit is normally connected to an external power source. When the device power unit is not connected to an external power source, power can be supplied to the device power unit through the first power supply pin of the first data card slot, and the device power unit can then supply power to the processor unit to read and write data cards connected to the first data card slot.

[0007] In another illustrative embodiment of the electrical control device, the first unidirectional circuit includes a first Schottky diode connected between the device power supply terminal and a first power supply pin, and the second unidirectional circuit includes a second Schottky diode connected between the first power supply pin and the device power input terminal. The first and second Schottky diodes have smaller voltage drops, further saving energy.

[0008] In another illustrative embodiment of the electrical control equipment, the electrical control equipment is a frequency converter, servo controller, programmable logic controller, or distributed control system equipment.

[0009] In another illustrative embodiment of the electrical control equipment, the first data card slot is an SD card slot.

[0010] This invention also provides a data card read / write power supply module, including a second data card slot, an insertion part, and a module power supply unit. The second data card slot is used for inserting and connecting a data card. The second data card slot includes a second power supply pin and several second functional pins, the second power supply pin corresponding to the power supply pins of the data card. The insertion part includes a third power supply pin and several third functional pins, the third power supply pin and the several third functional pins having the same pin arrangement as the data card, wherein the third power supply pin corresponds to the power supply pins of the data card, and the several third functional pins are connected one-to-one with the several second functional pins. The insertion part can be inserted into the data card slot, so that the third power supply pin and the several third functional pins are connected one-to-one with the pins of the data card slot. The module power supply unit includes a module power input terminal, a data card power supply terminal, and a module power supply terminal. The data card power supply terminal is connected to the second power supply pin, and the module power supply terminal is connected to the third power supply pin. When power is connected to the module power input terminal, the module power supply unit can supply power to the data card through the data card power supply terminal. The module power supply unit can also supply power to electrical control equipment through the module power supply terminal.

[0011] The data card read / write power supply module provided by this invention only requires a power supply to be connected to the module power input terminal, and the module power unit can supply power to the data card in the second data card slot. When the first data card slot on the electrical control device is inserted into the insertion part, the module power unit can also supply power to the electrical control device through the insertion part in conjunction with the first data card slot. The electrical control device can read and write the data card in the second data card slot without connecting to an external power supply.

[0012] In another illustrative embodiment of the data card read / write power supply module, the module power supply unit is configured to output a voltage at the module power supply terminal that is 90% of the input voltage of the electrical control equipment. When the module power supply unit is connected to an external power source, inserting the first data card slot into the insertion part will not have an adverse effect on the module power supply unit.

[0013] In another illustrative embodiment of the data card read / write power supply module, the module further includes a printed circuit board (PCB), with the insertion portion being part of the PCB. The second data card slot and the module power supply unit are soldered to the PCB. This facilitates mass production and processing of the data card read / write power supply module.

[0014] In another illustrative embodiment of the data card read / write power supply module, the data card read / write power supply module further includes a battery mounting bracket, which is connected to the module's power input terminal, and the battery installed on the battery mounting bracket can supply power to the module's power input terminal.

[0015] In another illustrative embodiment of the data card read / write power supply module, the data card read / write power supply module also includes a USB interface. The USB interface is connected to the module's power input terminal, and the USB interface can be connected to a USB power supply cable to supply power to the module's power input terminal.

[0016] In another illustrative embodiment of the data card read / write power supply module, the second data card slot is an SD card slot, and the insertion part can insert an SD card slot. Attached Figure Description

[0017] The following figures are for illustrative purposes only and do not limit the scope of the invention.

[0018] Figure 1 This is a schematic diagram illustrating one embodiment of an electrical control device.

[0019] Figure 2 A schematic diagram illustrating one embodiment of a power supply module for reading and writing data cards.

[0020] Label Explanation

[0021] 10 First Data Card Slot

[0022] 11 First power supply pin

[0023] 12 First Functional Pin

[0024] 20 processor units

[0025] 21 Processor power input terminal

[0026] 30 Equipment power supply unit

[0027] 31. Equipment power input terminal

[0028] 32. Equipment power supply terminal

[0029] 41 First Schottky Diode

[0030] 42 Second Schottky Diode

[0031] 50 Second Data Card Slot

[0032] 51 Second power supply pin

[0033] 52 Second Function Pin

[0034] 60 Printed Circuit Boards

[0035] 61 Insertion section

[0036] 611 Third power supply pin

[0037] 612 Third Function Pin

[0038] 70-module power supply unit

[0039] 71 Module power input terminal

[0040] 72 Data Card Power Supply Terminal

[0041] 73 Module power supply terminal

[0042] 81 Battery mounting bracket

[0043] 82 USB ports

[0044] Vin power input terminal Detailed Implementation

[0045] To provide a clearer understanding of the technical features, objectives, and effects of the invention, specific embodiments of the invention are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0046] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0047] In this document, terms such as "first" and "second" do not indicate their importance or order, but are only used to distinguish them to facilitate the description of the document.

[0048] To keep the drawings simple, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product.

[0049] Figure 1 This is a schematic diagram illustrating one embodiment of an electrical control device. (Refer to...) Figure 1 The electrical control equipment may be a frequency converter, servo controller, programmable logic controller or distributed control system equipment. The electrical control equipment includes a first data card slot 10, a processor unit 20, a device power supply unit 30, a first unidirectional circuit and a second unidirectional circuit.

[0050] The first data card slot 10 is used for inserting and connecting data cards. In an illustrative embodiment, the first data card slot 10 is an SD card slot. The first data card slot 10 includes a first power supply pin 11 and several first function pins 12. The first power supply pin 11 corresponds to the power supply pin of the data card, i.e., the fourth pin of the SD card. The several first function pins 12 are other pins used for data transmission. However, it is not limited to this. In other illustrative embodiments, the first data card slot 10 can also be other types of data card slots, such as TF card slots or CF card slots.

[0051] The processor unit 20 is connected to several first function pins 12. The processor unit 20 includes a processor power input terminal 21. When power is connected to the processor power input terminal 21, the processor unit 20 can control the reading and writing of the data card connected to the several first function pins 12.

[0052] The device power supply unit 30 includes a device power input terminal 31 and two device power supply terminals 32. One of the two device power supply terminals 32 is connected to the processor power input terminal 21. When power is connected to the device power input terminal 31, the device power supply unit 30 can supply power to the processor unit 20 through the device power supply terminal 32. Furthermore, all electrical control devices have a power input terminal Vin connected to the power input terminal 31. The power input terminal Vin is used to connect to an external power source when the electrical control device is put into actual use.

[0053] The first unidirectional circuit connects the other device power supply terminal 32 of the two device power supply terminals 32 to the first power supply pin 11, and the first unidirectional circuit allows current to flow unidirectionally from the device power supply terminal 32 to the first power supply pin 11. When power is connected to the device power input terminal 31 and there is no voltage on the first power supply pin 11, the device power supply unit 30 can supply power to the first power supply pin 11 through the first unidirectional circuit, thereby supplying power to the data card in the first data card slot 10.

[0054] Although in the illustrative embodiment, the device power supply unit 30 includes two device power supply terminals 32 that can output different voltages respectively, in other illustrative embodiments, when the power supply voltages of the processor unit 20 and the data card are equal, the device power supply unit 30 may also include only one device power supply terminal 32, which can simultaneously power the processor unit 20 and the data card.

[0055] The second unidirectional circuit connects the first power supply pin 11 and the device power input terminal 31, allowing current to flow unidirectionally from the first power supply pin 11 to the device power input terminal 31. When the device power supply unit 30 is not connected to an external power source, i.e., when the power input terminal Vin is not connected to a power source, the current on the first power supply pin 11 can flow to the device power supply unit 30 through the second unidirectional circuit.

[0056] The electrical control device provided by this invention, with the aid of a first unidirectional circuit and a second unidirectional circuit, can supply power to the data card in the first data card slot 10 and read / write the data card when the device power unit 30 is normally connected to an external power source. When the device power unit 30 is not connected to an external power source, i.e., when the power input terminal Vin is not connected to a power source, power can be supplied to the device power unit 30 through the first power supply pin 11 of the first data card slot 10. The device power unit 30 then supplies power to the processor unit 20 to read and write the data card connected to the first data card slot 10.

[0057] In the illustrative embodiment, refer to Figure 1 The first unidirectional circuit includes a first Schottky diode 41 connected between the device power supply terminal 32 and the first power supply pin 11. The anode of the first Schottky diode 41 is connected to the device power supply terminal 32, and the cathode is connected to the first power supply pin 11, thereby forming the first unidirectional circuit. The second unidirectional circuit includes a second Schottky diode 42 connected between the first power supply pin 11 and the device power input terminal 31. The anode of the second Schottky diode 42 is connected to the first power supply pin 11, and the cathode is connected to the device power input terminal 31, thereby forming the second unidirectional circuit. The first Schottky diode 41 and the second Schottky diode 42 have smaller voltage drops, which can further save power. However, this is not a limitation. In other illustrative embodiments, the first Schottky diode 41 and the second Schottky diode 42 can also be replaced with ordinary diodes.

[0058] The present invention also provides a data card read / write power supply module. Figure 2 This is a schematic diagram illustrating one embodiment of a power supply module for data card reading and writing. (Refer to...) Figure 2 The data card read / write power supply module includes a second data card slot 50, an insertion part 61, and a module power supply unit 70.

[0059] The second data card slot 50 is used for inserting and connecting data cards. In an illustrative embodiment, the second data card slot 50 is an SD card slot. The second data card slot 50 includes a second power supply pin 51 and several second function pins 52. The second power supply pin 51 corresponds to the power supply pin of the data card, i.e., the fourth pin of the SD card. The several second function pins 52 are other pins used for data transmission. However, it is not limited to this. In other illustrative embodiments, the second data card slot 50 can also be other types of data card slots, such as TF card slots or CF card slots.

[0060] The insertion part 61 is used to emulate a data card with the same specifications as the second data card slot 50. The insertion part 61 includes a third power supply pin 611 and several third function pins 612. The third power supply pin 611 and several third function pins 612 have the same pin arrangement as the data card. In an illustrative embodiment, the insertion part 61 is used to emulate an SD card and can be inserted into an SD card slot, wherein the third power supply pin 611 corresponds to the power supply pin of the data card, i.e., the fourth pin of the SD card. Several third function pins 612 are connected one-to-one with several second function pins 52. The insertion part 61 can be inserted into the first data card slot 10, so that the third power supply pin 611 and the first power supply pin 11 are connected, and the several first function pins 12 and the several third function pins 612 are connected one-to-one.

[0061] The modular power supply unit 70 includes a modular power input terminal 71, a data card power supply terminal 72, and a modular power supply terminal 73. The data card power supply terminal 72 is connected to the second power supply pin 51, and the modular power supply terminal 73 is connected to the third power supply pin 611. When power is connected to the modular power input terminal 71, the modular power supply unit 70 can supply power to the data card through the data card power supply terminal 72, for example, by outputting a 3.3V voltage through the data card power supply terminal 72. The modular power supply unit 70 can also supply power to the device power supply unit 30 of the electrical control equipment through the modular power supply terminal 73, for example, by outputting a 5V or 24V voltage through the modular power supply terminal 73.

[0062] The data card read / write power supply module provided by this invention only requires a power supply to be connected to the module power input terminal 71. The module power supply unit 70 can then supply power to the data card in the second data card slot 50. When the insertion part 61 is inserted into the first data card slot 10 of the electrical control device, the module power supply unit 70 can also supply power to the device power supply unit 30 of the electrical control device through the insertion part 61 in conjunction with the first data card slot 10. The device power supply unit 30 then supplies power to the processor unit 20 to read and write the data card in the second data card slot 50. Each time, the insertion part 61 only needs to be inserted and removed on a new electrical control device. The electrical control device does not need to be connected to an external power supply to read and write the data card in the second data card slot 50.

[0063] In the illustrative embodiment, refer to Figure 2 The data card read / write power supply module also includes a printed circuit board 60, with the insertion part 61 being a portion of the printed circuit board 60. The second data card holder 50 and the module power supply unit 70 are soldered to the printed circuit board 60. This facilitates mass production and processing of the data card read / write power supply module.

[0064] In the illustrative embodiment, the module power supply unit 70 is configured to output a voltage at the module power supply terminal 73 that is 90% of the input voltage of the electrical control device. For example, if the external power supply of the electrical control device outputs a 5V voltage, then the module power supply unit 70 is configured to output a 4.5V voltage at the module power supply terminal 73. When an external power supply is connected to the device power input terminal 31 of the device power supply unit 30 (i.e., the power input terminal Vin is connected to a power supply), and the insertion part 61 is simultaneously inserted into the first data card slot 10, it is equivalent to connecting two power supplies to the device power input terminal 31. Since the voltage of the first power supply pin 11 is less than the voltage of the external power supply, the second unidirectional circuit cannot be turned on at this time, so it will not have an adverse effect on the module power supply unit 70, thereby avoiding damage to the device power supply unit 30.

[0065] In the illustrative embodiment, refer to Figure 2 The data card read / write power supply module also includes a battery mounting bracket 81, which is connected to the module's power input terminal 71. The battery installed on the battery mounting bracket 81 can supply power to the module's power input terminal 71. This facilitates powering the module's power input terminal 71 via a battery.

[0066] The data card read / write power supply module also includes a USB interface 82, which connects to the module's power input terminal 71. The USB interface 82 can connect to a USB power cable to supply power to the module's power input terminal 71. This facilitates powering the module's power input terminal 71 via a USB power cable.

[0067] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0068] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementation schemes or modifications made without departing from the spirit of the present invention, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present invention.

Claims

1. An electrical control device, characterized in that, include: A first data card holder (10) is used for inserting and connecting a data card. The first data card holder (10) includes a first power supply pin (11) and several first function pins (12). The first power supply pin (11) corresponds to the power supply pin of the data card. A processor unit (20) is connected to a plurality of the first functional pins (12). The processor unit (20) includes a processor power input terminal (21). When power is connected to the processor power input terminal (21), the processor unit (20) is able to control the reading and writing of the data card connected to the plurality of the first functional pins (12). A device power supply unit (30) includes a device power input terminal (31) and at least one device power supply terminal (32), wherein the device power supply terminal (32) is connected to the processor power input terminal (21), and when the device power input terminal (31) is connected to a power source, the device power supply unit (30) can supply power to the processor unit (20) and the data card through at least one device power supply terminal (32); A first unidirectional circuit connects the device power supply terminal (32) and the first power supply pin (11), the first unidirectional circuit allowing current to flow unidirectionally from the device power supply terminal (32) to the first power supply pin (11); and A second unidirectional circuit is connected to the first power supply pin (11) and the device power input terminal (31), the second unidirectional circuit causing current to flow unidirectionally from the first power supply pin (11) to the device power input terminal (31).

2. The electrical control equipment as described in claim 1, characterized in that, The first unidirectional circuit includes a first Schottky diode (41) connected between the device power supply terminal (32) and the first power supply pin (11), and the second unidirectional circuit includes a second Schottky diode (42) connected between the first power supply pin (11) and the device power input terminal (31).

3. The electrical control equipment as described in claim 1, characterized in that, The electrical control equipment is a frequency converter, servo controller, programmable logic controller, or distributed control system equipment.

4. The electrical control equipment as described in claim 1, characterized in that, The first data card slot (10) is an SD card slot.

5. A data card read / write power supply module, characterized in that, include: A second data card holder (50) is used for inserting and connecting a data card. The second data card holder (50) includes a second power supply pin (51) and several second function pins (52). The second power supply pin (51) corresponds to the power supply pin of the data card. An insertion part (61) includes a third power supply pin (611) and several third function pins (612). The third power supply pin (611) and several third function pins (612) are arranged in the same way as the pins of a data card. The third power supply pin (611) corresponds to the power supply pin of the data card, and the several third function pins (612) are connected one-to-one with several second function pins (52). The insertion part (61) can be inserted into a data card slot, so that the third power supply pin (611) and several third function pins (612) are connected one-to-one with the pins of the data card slot; and A modular power supply unit (70) includes a modular power input terminal (71), a data card power supply terminal (72), and a modular power supply terminal (73). The data card power supply terminal (72) is connected to the second power supply pin (51), and the modular power supply terminal (73) is connected to the third power supply pin (611). When the modular power input terminal (71) is connected to a power source, the modular power supply unit (70) can supply power to the data card through the data card power supply terminal (72). The modular power supply unit (70) can also supply power to electrical control equipment through the modular power supply terminal (73).

6. The data card read / write power supply module as described in claim 5, characterized in that, The module power supply unit (70) is configured to output a voltage at the module power supply terminal (73) that is 90% of the input voltage of the electrical control device.

7. The data card read / write power supply module as described in claim 5, characterized in that, The data card read / write power supply module also includes a printed circuit board (60), the insertion part (61) is part of the printed circuit board (60), and the second data card holder (50) and the module power supply unit (70) are soldered to the printed circuit board (60).

8. The data card read / write power supply module as described in claim 5, characterized in that, The data card read / write power supply module also includes a battery mounting bracket (81), which is connected to the module power input terminal (71). The battery installed on the battery mounting bracket (81) can supply power to the module power input terminal (71).

9. The data card read / write power supply module as described in claim 5, characterized in that, The data card read / write power supply module also includes a USB interface (82), which is connected to the power input terminal (71) of the module. The USB interface (82) can be connected to a USB power supply cable to supply power to the power input terminal (71) of the module.

10. The data card read / write power supply module as described in claim 5, characterized in that, The second data card slot (50) is an SD card slot, and the insertion part (61) can insert an SD card slot.

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