Circuit, method and system for automatically setting maximum current of alternating-current portable charging pile

Abstract

The invention discloses an AC portable charging pile maximum current automatic setting circuit, method and system, and the circuit comprises a body interface circuit which comprises a charging pile body terminal which is provided with a first check point and a second check point; the first plug is communicated with the body interface circuit, the first plug comprises a first adapter terminal, and the first adapter terminal comprises a first resistor and a second resistor; the second plug is communicated with the body interface circuit, the second plug comprises a second adapter terminal, and the second adapter terminal comprises a third resistor and a fourth resistor; and the third plug is communicated with the body interface circuit, the third plug comprises a third adapter terminal, and the third adapter terminal comprises a fifth resistor and a sixth resistor. When the vehicle is charged, different adaptive plugs are identified by judging the high and low levels of the two terminals in the power supply adaptive plug connection interface, so that the maximum current of the pile is automatically set, and different charging requirements are met.

Description

Technical Field

[0001] The present invention relates to the field of charging control technology, and more specifically, to a circuit, method and system for automatically setting the maximum current of an AC portable charging pile. Background Art

[0002] At present, the AC portable charging pile needs to be charged by the user manually setting the maximum current of the pile through buttons, etc. according to the needs of the power socket.

[0003] However, in actual operation, users need to make new settings each time they change different sockets according to the required current, which is rather cumbersome. If the settings are missed, there will be safety hazards, which may easily lead to charging accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit, method and system for automatically setting the maximum current of an AC portable charging pile. When a vehicle is charging, different adapter plugs are identified by judging the high and low levels of the two terminals in the power adapter plug connection interface, thereby automatically setting the maximum current of the pile to meet different charging needs.

[0005] A first aspect of the present invention provides a circuit for automatically setting the maximum current of an AC portable charging pile, the circuit comprising:

[0006] A body interface circuit, the body interface circuit comprising a charging pile body terminal, wherein the terminal is provided with a first checkpoint and a second checkpoint;

[0007] A first plug, connected to the main body interface circuit, the first plug includes a first adapter terminal, the first adapter terminal includes a first resistor and a second resistor;

[0008] A second plug is connected to the main body interface circuit, the second plug includes a second adapter terminal, and the second adapter terminal includes a third resistor and a fourth resistor;

[0009] The third plug is connected to the main body interface circuit, and the third plug includes a third adapter terminal, and the third adapter terminal includes a fifth resistor and a sixth resistor.

[0010] In this solution, the positive voltage of the charging pile body terminal, the first adapter terminal, the second adapter terminal and the third adapter terminal is 3.3V.

[0011] In this solution, the resistance values ​​of the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor and the sixth resistor are all 100k ohms.

[0012] In this solution, one end of the first resistor is grounded, and the other end is connected to the preset interface of the first adapter terminal; one end of the second resistor is connected to a 3.3V positive voltage, and the other end is connected to the preset interface of the first adapter terminal; one end of the third resistor is connected to a 3.3V positive voltage, and the other end is connected to the preset interface of the second adapter terminal; one end of the fourth resistor is grounded, and the other end is connected to the preset interface of the second adapter terminal; the fifth resistor and the sixth resistor are connected in parallel, wherein one end after parallel connection is grounded, and the other end is connected to the preset interface of the third adapter terminal.

[0013] A second aspect of the present invention provides a method for automatically setting the maximum current of an AC portable charging pile, which is applied to any one of the circuits for automatically setting the maximum current of an AC portable charging pile, wherein the method comprises the following steps:

[0014] After the socket is powered on, the high and low levels of the first checkpoint and the second checkpoint terminals are detected, where:

[0015] If the first check point is at a low level and the second check point is at a high level, the first plug is connected to the main body interface circuit, and the maximum current is the first current;

[0016] If the first check point is at a high level and the second check point is at a low level, the second plug is connected to the main body interface circuit, and the maximum current is the second current;

[0017] Otherwise, the third plug is connected to the main body interface circuit, and the maximum current is the third current.

[0018] In this solution, when the power adapter plug is connected and the power is turned on when inserted into the socket, the preset interface of the charging pile body terminal based on the body interface circuit identifies the first check point and the second check point.

[0019] In this solution, the first current corresponding to the connection between the first plug and the main body interface circuit is 32A, the second current corresponding to the connection between the second plug and the main body interface circuit is 16A, and the third current corresponding to the connection between the third plug and the main body interface circuit is 10A.

[0020] The third aspect of the present invention further provides a system for automatically setting the maximum current of an AC portable charging pile, comprising a memory and a processor, wherein the memory comprises a method program for automatically setting the maximum current of an AC portable charging pile, and when the method program for automatically setting the maximum current of an AC portable charging pile is executed by the processor, the following steps are implemented:

[0021] After the socket is powered on, the high and low levels of the first checkpoint and the second checkpoint terminals are detected, where:

[0022] If the first check point is at a low level and the second check point is at a high level, the first plug is connected to the main body interface circuit, and the maximum current is the first current;

[0023] If the first check point is at a high level and the second check point is at a low level, the second plug is connected to the main body interface circuit, and the maximum current is the second current;

[0024] Otherwise, the third plug is connected to the main body interface circuit, and the maximum current is the third current.

[0025] In this solution, when the power adapter plug is connected and the power is turned on when inserted into the socket, the preset interface of the charging pile body terminal based on the body interface circuit identifies the first check point and the second check point.

[0026] In this solution, the first current corresponding to the connection between the first plug and the main body interface circuit is 32A, the second current corresponding to the connection between the second plug and the main body interface circuit is 16A, and the third current corresponding to the connection between the third plug and the main body interface circuit is 10A.

[0027] The present invention discloses a circuit, method and system for automatically setting the maximum current of an AC portable charging pile. When a vehicle is charging, different adapter plugs are identified by judging the high and low levels of two terminals in a power adapter plug connection interface, thereby automatically setting the maximum current of the pile to meet different charging requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1A-Figure 1D A schematic diagram showing the connection of different terminals in a circuit for automatically setting the maximum current of an AC portable charging pile according to the present invention;

[0029] Figure 2 A schematic diagram showing the steps of a method for automatically setting the maximum current of an AC portable charging pile according to the present invention is shown;

[0030] Figure 3 A schematic diagram showing a flow chart of a method for automatically setting the maximum current of an AC portable charging pile according to the present invention;

[0031] Figure 4 A block diagram of a system for automatically setting the maximum current of an AC portable charging pile of the present invention is shown. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0034] Specifically, the present application discloses an AC portable charging pile maximum current automatic circuit, wherein the circuit comprises:

[0035] A body interface circuit, the body interface circuit comprising a charging pile body terminal, wherein the terminal is provided with a first checkpoint and a second checkpoint;

[0036] A first plug, connected to the main body interface circuit, the first plug includes a first adapter terminal, the first adapter terminal includes a first resistor and a second resistor;

[0037] A second plug is connected to the main body interface circuit, the second plug includes a second adapter terminal, and the second adapter terminal includes a third resistor and a fourth resistor;

[0038] The third plug is connected to the main body interface circuit, and the third plug includes a third adapter terminal, and the third adapter terminal includes a fifth resistor and a sixth resistor.

[0039] It should be noted that, in this embodiment, Figure 1A-Figure 1D As shown, it is a connection diagram of the charging pile body terminal J1, the first adapter terminal J2, the second adapter terminal J3 and the third adapter terminal J4, wherein the body interface circuit includes the charging pile body terminal J1, wherein, as Figure 1A As shown, the charging pile terminal J1 is provided with a first checkpoint check1 and a second checkpoint check2. Specifically, the "interface 1" of the charging pile terminal J1 is grounded, the "interface 2" of the charging pile terminal J1 corresponds to the first checkpoint check1, the "interface 3" of the charging pile terminal J1 corresponds to the second checkpoint check2, and the "interface 4" of the charging pile terminal J1 is connected to a positive voltage of 3.3V.

[0040] Further, the first plug is connected to the main body interface circuit, the first plug includes a first adapter terminal J2, the first adapter terminal J2 includes a first resistor R1 and a second resistor R2, specifically, the first resistance R1 and the second resistance R2 are both 100k ohms, wherein, Figure 1BAs shown, one end of the first resistor R1 is grounded, and the other end is connected to the preset interface of the first adapter terminal J2; one end of the second resistor R2 is connected to the 3.3V positive voltage, and the other end is connected to the preset interface of the first adapter terminal J2. Specifically, "Interface 1" of the first adapter terminal J2 is grounded, "Interface 2" of the first adapter terminal J2 is connected to the first resistor R1 and then to the ground, "Interface 3" of the first adapter terminal J2 is connected to the second resistor R2 and then to the positive voltage, and "Interface 4" of the first adapter terminal J2 is connected to the 3.3V positive voltage.

[0041] Further, the second plug is connected to the main body interface circuit, the second plug includes a second adapter terminal J3, the second adapter terminal J3 includes a third resistor R3 and a fourth resistor R4, specifically, the third resistor R3 and the fourth resistor R4 are both 100k ohms, wherein, Figure 1C As shown, one end of the third resistor R3 is connected to a 3.3V positive voltage, and the other end is connected to a preset interface of the second adapter terminal J3; one end of the fourth resistor R4 is grounded, and the other end is connected to a preset interface of the second adapter terminal J3; specifically, "Interface 1" of the second adapter terminal J3 is grounded, "Interface 2" of the second adapter terminal J3 is connected to the third resistor R3 and then to a positive voltage, "Interface 3" of the second adapter terminal J3 is connected to the fourth resistor R4 and then to ground, and "Interface 4" of the second adapter terminal J3 is connected to a 3.3V positive voltage.

[0042] Further, the third plug is connected to the main body interface circuit, the third plug includes a third adapter terminal J4, the third adapter terminal J4 includes a fifth resistor R5 and a sixth resistor R6, specifically, the fifth resistor R5 and the sixth resistor R6 are both 100k ohms, wherein, Figure 1D As shown, the fifth resistor R5 is connected in parallel with the sixth resistor R6, wherein one end is grounded after the parallel connection, and the other end is connected to a preset interface of the third adapter terminal. Specifically, "Interface 1" of the third adapter terminal J4 is grounded, "Interface 2" of the third adapter terminal J4 is connected to the fifth resistor R5 and then grounded, "Interface 3" of the third adapter terminal J4 is connected to the sixth resistor R6 and then grounded, and "Interface 4" of the third adapter terminal J4 is connected to a positive voltage of 3.3V.

[0043] Figure 2 A flow chart of a method for automatically setting the maximum current of an AC portable charging pile of the present application is shown.

[0044] like Figure 2 As shown, the present application discloses a method for automatically setting the maximum current of an AC portable charging pile, comprising the following steps:

[0045] S202, after the socket is powered on, detecting the high and low levels of the first checkpoint and the second checkpoint terminals;

[0046] S204, if the first check point is at a low level and the second check point is at a high level, setting the first plug to be connected to the main body interface circuit, and the maximum current is the first current;

[0047] S206, if the first check point is at a high level and the second check point is at a low level, setting the second plug to be connected to the main body interface circuit, and the maximum current is the second current;

[0048] S208, otherwise, the third plug is connected to the main body interface circuit, and the maximum current is the third current.

[0049] It should be noted that, in this embodiment, Figure 3 As shown, it is a flow chart of the method for automatically setting the maximum current of an AC portable charging pile. When the power adapter plug is connected and the power is turned on when it is inserted into the socket, the preset interface of the charging pile body terminal based on the body interface circuit identifies the first checkpoint check1 and the second checkpoint check2, wherein, if the first checkpoint is a low level and the second checkpoint is a high level, the first plug is set to be connected to the body interface circuit, specifically, the first current corresponding to the connection between the first plug and the body interface circuit is 32A; if the first checkpoint is a high level and the second checkpoint is a low level, the second plug is set to be connected to the body interface circuit, and the maximum current is the second current, specifically, the second current corresponding to the connection between the second plug and the body interface circuit is 16A; if neither of the first two groups of conditions is satisfied, the third plug is set to be connected to the body interface circuit, and the maximum current is the third current, wherein the third current corresponding to the connection between the third plug and the body interface circuit is 10A, so that even if the interface circuit fails, the charging pile can charge the car at the minimum current to avoid safety hazards caused by using excessive current.

[0050] Figure 4 A block diagram of a system for automatically setting the maximum current of an AC portable charging pile of the present invention is shown.

[0051] like Figure 4 As shown, the present invention discloses a system for automatically setting the maximum current of an AC portable charging pile, comprising a memory and a processor, wherein the memory comprises a method program for automatically setting the maximum current of an AC portable charging pile, and when the method program for automatically setting the maximum current of an AC portable charging pile is executed by the processor, the following steps are implemented:

[0052] After the socket is powered on, the high and low levels of the first checkpoint and the second checkpoint terminals are detected, where:

[0053] If the first check point is at a low level and the second check point is at a high level, the first plug is connected to the main body interface circuit, and the maximum current is the first current;

[0054] If the first check point is at a high level and the second check point is at a low level, the second plug is connected to the main body interface circuit, and the maximum current is the second current;

[0055] Otherwise, the third plug is connected to the main body interface circuit, and the maximum current is the third current.

[0056] It should be noted that, in this embodiment, Figure 3 As shown, it is a flow chart of the method for automatically setting the maximum current of an AC portable charging pile. When the power adapter plug is connected and the power is turned on when it is inserted into the socket, the preset interface of the charging pile body terminal based on the body interface circuit identifies the first checkpoint check1 and the second checkpoint check2, wherein, if the first checkpoint is a low level and the second checkpoint is a high level, the first plug is set to be connected to the body interface circuit, specifically, the first current corresponding to the connection between the first plug and the body interface circuit is 32A; if the first checkpoint is a high level and the second checkpoint is a low level, the second plug is set to be connected to the body interface circuit, and the maximum current is the second current, specifically, the second current corresponding to the connection between the second plug and the body interface circuit is 16A; if neither of the first two groups of conditions is satisfied, the third plug is set to be connected to the body interface circuit, and the maximum current is the third current, wherein the third current corresponding to the connection between the third plug and the body interface circuit is 10A, so that even if the interface circuit fails, the charging pile can charge the car at the minimum current to avoid safety hazards caused by using excessive current.

[0057] The present invention discloses a circuit, method and system for automatically setting the maximum current of an AC portable charging pile. When a vehicle is charging, different adapter plugs are identified by judging the high and low levels of two terminals in a power adapter plug connection interface, thereby automatically setting the maximum current of the pile to meet different charging requirements.

[0058] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0059] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0060] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0061] A person of ordinary skill in the art can understand that: all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks or optical disks, and other media that can store program codes.

[0062] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

Claims

1. An AC portable charging pile maximum current automatic setting circuit, characterized in that: The circuit comprises: A body interface circuit, the body interface circuit comprising a charging pile body terminal, wherein the terminal is provided with a first checkpoint and a second checkpoint; A first plug, connected to the main body interface circuit, the first plug includes a first adapter terminal, the first adapter terminal includes a first resistor and a second resistor; A second plug is connected to the main body interface circuit, the second plug includes a second adapter terminal, and the second adapter terminal includes a third resistor and a fourth resistor; The third plug is connected to the main body interface circuit, and the third plug includes a third adapter terminal, and the third adapter terminal includes a fifth resistor and a sixth resistor.

2. The method for automatically setting the maximum current of an AC portable charging pile according to claim 1, characterized in that: The positive voltage of the charging pile body terminal, the first adapter terminal, the second adapter terminal and the third adapter terminal is 3.3V.

3. The method for automatically setting the maximum current of an AC portable charging pile according to claim 2, characterized in that: The resistance values ​​of the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor and the sixth resistor are all 100k ohms.

4. The method for automatically setting the maximum current of an AC portable charging pile according to claim 3, characterized in that: One end of the first resistor is grounded, and the other end is connected to the preset interface of the first adapter terminal; one end of the second resistor is connected to a 3.3V positive voltage, and the other end is connected to the preset interface of the first adapter terminal; one end of the third resistor is connected to a 3.3V positive voltage, and the other end is connected to the preset interface of the second adapter terminal; one end of the fourth resistor is grounded, and the other end is connected to the preset interface of the second adapter terminal; the fifth resistor and the sixth resistor are connected in parallel, wherein one end after parallel connection is grounded, and the other end is connected to the preset interface of the third adapter terminal.

5. A method for automatically setting the maximum current of an AC portable charging pile, characterized in that: The circuit for automatically setting the maximum current of an AC portable charging pile according to any one of claims 1 to 4, wherein the method comprises the following steps: After the socket is powered on, the high and low levels of the first checkpoint and the second checkpoint terminals are detected, where: If the first check point is at a low level and the second check point is at a high level, the first plug is connected to the main body interface circuit, and the maximum current is the first current; If the first check point is at a high level and the second check point is at a low level, the second plug is connected to the main body interface circuit, and the maximum current is the second current; Otherwise, the third plug is connected to the main body interface circuit, and the maximum current is the third current.

6. The method for automatically setting the maximum current of an AC portable charging pile according to claim 5, characterized in that: When the power adapter plug is connected and plugged into the socket, power is turned on. At this time, the preset interface of the charging pile body terminal based on the body interface circuit identifies the first check point and the second check point.

7. A method for automatically setting the maximum current of an AC portable charging pile according to claim 6, characterized in that: The first current corresponding to the connection between the first plug and the main body interface circuit is 32A, the second current corresponding to the connection between the second plug and the main body interface circuit is 16A, and the third current corresponding to the connection between the third plug and the main body interface circuit is 10A.

8. An automatic setting system for the maximum current of an AC portable charging pile, characterized in that: The invention comprises a memory and a processor, wherein the memory comprises a method program for automatically setting the maximum current of an AC portable charging pile, and when the method program for automatically setting the maximum current of an AC portable charging pile is executed by the processor, the following steps are implemented: After the socket is powered on, the high and low levels of the first checkpoint and the second checkpoint terminals are detected, where: If the first check point is at a low level and the second check point is at a high level, the first plug is connected to the main body interface circuit, and the maximum current is the first current; If the first check point is at a high level and the second check point is at a low level, the second plug is connected to the main body interface circuit, and the maximum current is the second current; Otherwise, the third plug is connected to the main body interface circuit, and the maximum current is the third current.

9. The system for automatically setting the maximum current of an AC portable charging pile according to claim 8, characterized in that: When the power adapter plug is connected and plugged into the socket, power is turned on. At this time, the preset interface of the charging pile body terminal based on the body interface circuit identifies the first check point and the second check point.

10. The system for automatically setting the maximum current of an AC portable charging pile according to claim 9, characterized in that: The first current corresponding to the connection between the first plug and the main body interface circuit is 32A, the second current corresponding to the connection between the second plug and the main body interface circuit is 16A, and the third current corresponding to the connection between the third plug and the main body interface circuit is 10A.

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