An extension board of a master control board and a charging pile control circuit

Abstract

The utility model relates to charging pile technical field discloses a kind of extension board and charging pile control circuit of main control panel, extension board is connected on main control panel, and extension board includes: first extension board includes the instrument communication wiring terminal P7 for being connected with main control panel, charger / A gun BMS gun / B gun BMS gun communication wiring terminal P8, temperature detection wiring terminal P9, A gun / B gun connection confirmation wiring terminal P10;Second extension board includes: A and B gun battery voltage wiring terminal P1, A gun charging control unit open quantity wiring terminal P2, B gun charging control unit open quantity wiring terminal P3, charging control unit open-in quantity wiring terminal P4.It is connected by wiring harness between main control panel and relay circuit board by the extension board of main control panel.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, specifically to an expansion board for a main control board and a charging pile control circuit. Background Technology

[0002] A charging pile is a device that provides electrical energy to electric vehicles; it is also called an electric vehicle charging station or electric vehicle power supply equipment. Its main function is to provide electrical energy to electric vehicles, ensuring their normal operation. Charging piles are typically installed in public buildings (such as office buildings, shopping malls, public parking lots, etc.), residential parking lots, or charging stations. Their power input is connected to the AC power grid, and their output is equipped with a charging plug for charging electric vehicles.

[0003] In existing technologies, the control circuit of charging piles has a large number of connecting lines from the main control board to various functional modules, sometimes as many as dozens or even hundreds. This makes the installation inefficient and prone to errors during the assembly of the control circuit. Furthermore, it is very cumbersome during maintenance and makes it difficult to detect faults in a timely manner.

[0004] The patent application number 202520773273.3, entitled "Integrated Wiring Harness for Charging Piles and Control Circuit for Charging Piles", designs an integrated wiring harness for the main control board developed by the applicant to connect the main control board with the peripheral functional modules. The use of the integrated wiring harness greatly improves the efficiency and accuracy of installation.

[0005] However, in some cases the main control board is not developed by the applicant, that is, the main control board does not have wiring terminals suitable for integrated wiring harnesses, and cannot make good use of the integrated wiring harnesses in the above-mentioned patents. Based on this, this utility model proposes an expansion board for the main control board and a charging pile control circuit. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an expansion board for the main control board and a charging pile control circuit.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an expansion board for a main control board, the expansion board being connected to the main control board, the expansion board comprising: a first expansion board and a second expansion board, wherein the first expansion board includes an instrument communication terminal P7 for connecting to the main control board, a charger / A gun BMS gun / B gun BMS gun communication terminal P8, a temperature detection terminal P9, and an A gun / B gun connection confirmation terminal P10; The first expansion board also includes wiring terminals connected to the second expansion board and wiring terminals connected to the first adapter circuit board; The second expansion board includes: battery voltage terminals P1 for guns A and B, output terminal P2 for the charging control unit of gun A, output terminal P3 for the charging control unit of gun B, and input terminal P4 for the charging control unit. The second expansion board also includes terminals connected to the first expansion board, and terminals connected to the second and third adapter circuit boards.

[0008] Preferably, the first expansion board also includes a spare terminal block P6, which is used to connect to a 485 interface, a communication interface, or a power supply. The P7 terminal block for instrument communication is used to connect the electricity meter communication interface, card reader communication interface, display screen communication interface and card reader power interface on the main control board. The charger / A gun / BMS gun / B gun / BMS gun communication terminal P8 is used to connect the charger module communication interface, A gun / BMS gun communication interface and B gun / BMS gun communication interface of the main control board. Temperature detection terminal P9 is used to connect multiple temperature detection interfaces on the main control board; The A-gun / B-gun connection confirmation terminal P10 is used to connect the A-gun connection confirmation interface and the B-gun connection confirmation interface of the main control board.

[0009] Preferably, the battery voltage terminals P1 for guns A and B are used to connect the battery voltage interfaces for guns A and B. The output terminal P2 of the A gun charging control unit is used to connect the A gun output contactor control interface, the A gun 12V auxiliary power supply control interface, the A gun 24V auxiliary power supply control interface, the A gun electronic lock control interface, the fan start / stop control, and the AC input contactor control interface. The output terminal P3 of the B gun charging control unit is used to connect the B gun output contactor control interface, the B gun 12V auxiliary power supply control interface, the B gun 24V auxiliary power supply control interface, the B gun electronic lock control interface, and the bus tie contactor closing interface. The charging control unit's input terminal P4 is used to connect to the following interfaces: running light 1 status interface, running light 2 status interface, fault light status interface, surge arrester status interface, emergency stop switch status interface, access control status interface, bus tie contactor status interface, A-gun electronic lock status interface, B-gun electronic lock status interface, AC incoming circuit breaker status interface, AC incoming contactor status interface, and common terminal.

[0010] A charging pile control circuit includes an expansion board of the main control board. The control circuit further includes: the main control board, a first adapter circuit board, a second adapter circuit board, and a third adapter circuit board; the adapter circuit boards are provided with wiring terminals for connecting to wire harnesses. The main control board connects to the first expansion board and the second expansion board; The first expansion board is connected to the first adapter circuit board via the first wiring harness, the second expansion board is connected to the second adapter circuit board via the sixth wiring harness, and the second expansion board is connected to the third adapter circuit board via the seventh wiring harness. The first adapter circuit board is connected to the emergency stop control module via the second wiring harness, to the access control switch control module via the third wiring harness, to the card swiping control module via the fourth wiring harness, and to the light board control module via the fifth wiring harness. The second adapter circuit board is connected to the first DC contactor via the eighth wiring harness and to the first gun wire control module via the ninth wiring harness; the second adapter circuit board is connected to the first parallel DC contactor via the twelfth wiring harness. The third adapter circuit board is connected to the second DC contactor via the tenth wiring harness and to the second gun wire control module via the eleventh wiring harness; the third adapter board is connected to the second parallel DC contactor via the thirteenth wiring harness.

[0011] Compared with the prior art, this utility model provides an expansion board for the main control board and a charging pile control circuit, which has the following advantages: When the main control board is not developed by the applicant, i.e., when there are no wiring terminals on the main control board that are compatible with integrated wiring harnesses, the connection between the main control board and the adapter circuit board is achieved through the expansion board of the main control board via wiring harness.

[0012] When assembling the charging pile control circuit, the main control circuit board is connected to the expansion board via an integrated wiring harness, which in turn connects to the adapter circuit board. Each functional control module is then connected to the adapter circuit board via another wiring harness. The use of integrated wiring harnesses significantly improves installation efficiency and accuracy. Furthermore, it makes it easier to quickly locate faulty lines during later circuit maintenance, thus improving maintenance efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first expansion plate of this utility model; Figure 2 This is a schematic diagram of the second expansion plate of this utility model; Figure 3 This is a schematic diagram of the charging pile control circuit of this utility model; Figure 4 This is a schematic diagram of the first adapter plate of this utility model; Figure 5 This is a schematic diagram of the second / third adapter plate of this utility model. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example 1: Please refer to Figure 1 - Figure 5 The present invention provides the following technical solution: an expansion board for a main control board, the expansion board being connected to the main control board, the expansion board comprising: a first expansion board and a second expansion board, wherein the first expansion board includes instrument communication terminals P7 (J71-J78) for connection with the main control board, charger / A gun BMS gun / B gun BMS gun communication terminals P8 (J81-J88), temperature detection terminals P9 (J91-J98), and A gun / B gun connection confirmation terminals P10 (J101-J102). The first expansion board also includes wiring terminals connected to the second expansion board and wiring terminals connected to the first adapter circuit board; The second expansion board includes: battery voltage terminals P1 (J11-J14) for guns A and B, output terminals P2 (J21-J212) for the charging control unit of gun A, output terminals P3 (J31-J312) for the charging control unit of gun B, and input terminals P4 (J41-J412) for the charging control unit. The second expansion board also includes terminals connected to the first expansion board, and terminals connected to the second and third adapter circuit boards.

[0016] like Figure 1 As shown, the first expansion board also includes a terminal block for connection to the second expansion board. Preferably, the first expansion board also includes spare terminal blocks P6 (J61-J62), which are used to connect to the 485 interface, communication interface or power supply. The power terminal P5 of the charging control unit is used to connect the charging control unit power supply L, charging control unit power supply N, and charging control unit power supply PE on the main control board. The P7 terminal block for instrument communication is used to connect the electricity meter communication interface, card reader communication interface, display screen communication interface and card reader power interface on the main control board. The charger / A gun / BMS gun / B gun / BMS gun communication terminal P8 is used to connect the charger module communication interface, A gun / BMS gun communication interface and B gun / BMS gun communication interface of the main control board. Temperature detection terminal P9 is used to connect multiple temperature detection interfaces on the main control board; The A-gun / B-gun connection confirmation terminal P10 is used to connect the A-gun connection confirmation interface and the B-gun connection confirmation interface of the main control board.

[0017] Preferably, the battery voltage terminals P1 for guns A and B are used to connect the battery voltage interfaces for guns A and B. The output terminal P2 of the A gun charging control unit is used to connect the A gun output contactor control interface, the A gun 12V auxiliary power supply control interface, the A gun 24V auxiliary power supply control interface, the A gun electronic lock control interface, the fan start / stop control, and the AC input contactor control interface. The output terminal P3 of the B gun charging control unit is used to connect the B gun output contactor control interface, the B gun 12V auxiliary power supply control interface, the B gun 24V auxiliary power supply control interface, the B gun electronic lock control interface, and the bus tie contactor closing interface. The charging control unit's input terminal P4 is used to connect to the following interfaces: running light 1 status interface, running light 2 status interface, fault light status interface, surge arrester status interface, emergency stop switch status interface, access control status interface, bus tie contactor status interface, A-gun electronic lock status interface, B-gun electronic lock status interface, AC incoming circuit breaker status interface, AC incoming contactor status interface, and common terminal.

[0018] A charging pile control circuit includes an expansion board of the main control board. The control circuit further includes: the main control board, a first adapter circuit board, a second adapter circuit board, and a third adapter circuit board; the adapter circuit boards are provided with wiring terminals for connecting to wire harnesses. The main control board connects to the first expansion board and the second expansion board; The first expansion board is connected to the first adapter circuit board via the first wiring harness, the second expansion board is connected to the second adapter circuit board via the sixth wiring harness, and the second expansion board is connected to the third adapter circuit board via the seventh wiring harness. The first adapter circuit board is connected to the emergency stop control module via the second wiring harness, to the access control switch control module via the third wiring harness, to the card swiping control module via the fourth wiring harness, and to the light board control module via the fifth wiring harness. The second adapter circuit board is connected to the first DC contactor via the eighth wiring harness and to the first gun wire control module via the ninth wiring harness; the second adapter circuit board is connected to the first parallel DC contactor via the twelfth wiring harness. The third adapter circuit board is connected to the second DC contactor via the tenth wiring harness and to the second gun wire control module via the eleventh wiring harness; the third adapter board is connected to the second parallel DC contactor via the thirteenth wiring harness.

[0019] Specifically, for the LED board - single-sided board - 2538 LEDs, the text indicating normal illumination should be on the reverse side. P1 is a 2.54mm pitch 12P simple horn terminal block, corresponding one-to-one with the main board, with wire thickness designed according to a current of 3 amps or more; P2 / P7 are 2.54mm pitch surface mount terminal blocks, P3 / P4 are 2.0mm pitch 8P surface mount terminal blocks, pay attention to the correct wire sequence; P5, P6, P8, and P9 are 2.54mm pitch through-hole terminals and should be on the reverse side; yellow indicates characters that need to be silkscreened; the position of the P1 terminal and LEDs should not be changed, other positions can be fine-tuned as needed; the A / B gun uses a green LED; the fault light uses a yellow LED; the power light uses a blue LED; the white oval contains white text.

[0020] J1210 / J77 / J412 / J53 are connected to the common ground. J28 / J38 are still locked as before. The green ones do not need to be modified or moved.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An expansion board for a master board, characterized in that The expansion board is connected to the main control board. The expansion board includes: a first expansion board and a second expansion board. The first expansion board includes an instrument communication terminal P7 for connecting to the main control board, a charger / A gun BMS gun / B gun BMS gun communication terminal P8, a temperature detection terminal P9, and an A gun / B gun connection confirmation terminal P10. The first expansion board also includes wiring terminals connected to the second expansion board and wiring terminals connected to the first adapter circuit board; The second expansion board includes: battery voltage terminals P1 for guns A and B, output terminal P2 for the charging control unit of gun A, output terminal P3 for the charging control unit of gun B, and input terminal P4 for the charging control unit. The second expansion board also includes terminals connected to the first expansion board, and terminals connected to the second and third adapter circuit boards.

2. An expansion board for a master board according to claim 1, wherein The first expansion board also includes a spare terminal block P6, which is used to connect to a 485 interface, a communication interface, or a power supply. The P7 terminal block for instrument communication is used to connect the electricity meter communication interface, card reader communication interface, display screen communication interface and card reader power interface on the main control board. The charger / A gun / BMS gun / B gun / BMS gun communication terminal P8 is used to connect the charger module communication interface, A gun / BMS gun communication interface and B gun / BMS gun communication interface of the main control board. Temperature detection terminal P9 is used to connect multiple temperature detection interfaces on the main control board; The A-gun / B-gun connection confirmation terminal P10 is used to connect the A-gun connection confirmation interface and the B-gun connection confirmation interface of the main control board.

3. An expansion board for a main control board according to claim 1, characterized in that, The A and B gun battery voltage terminals P1 are used to connect the A gun battery voltage interface and the B gun battery voltage interface. The output terminal P2 of the A gun charging control unit is used to connect the A gun output contactor control interface, the A gun 12V auxiliary power supply control interface, the A gun 24V auxiliary power supply control interface, the A gun electronic lock control interface, the fan start / stop control, and the AC input contactor control interface. Terminal P3 of the B-gun charging control unit is used to connect the B-gun output contactor control interface, the B-gun 12V auxiliary power supply control interface, the B-gun 24V auxiliary power supply control interface, the B-gun electronic lock control interface, the bus tie contactor and interface. The charging control unit's input terminal P4 is used to connect to the following interfaces: running light 1 status interface, running light 2 status interface, fault light status interface, surge arrester status interface, emergency stop switch status interface, access control status interface, bus tie contactor status interface, A-gun electronic lock status interface, B-gun electronic lock status interface, AC incoming circuit breaker status interface, AC incoming contactor status interface, and common terminal.

4. A charging station control circuit, characterized by The control circuit includes an expansion board of the main control board according to any one of claims 1-3, and further includes: the main control board, a first adapter circuit board, a second adapter circuit board, and a third adapter circuit board; the adapter circuit board is provided with wiring terminals for connection to the wiring harness. The main control board connects to the first expansion board and the second expansion board; The first expansion board is connected to the first adapter circuit board via a first wiring harness, the second expansion board is connected to the second adapter circuit board via a sixth wiring harness, and the second expansion board is connected to the third adapter circuit board via a seventh wiring harness. The first adapter circuit board is connected to the emergency stop control module via the second wiring harness, to the access control switch control module via the third wiring harness, to the card swiping control module via the fourth wiring harness, and to the light board control module via the fifth wiring harness. The second adapter circuit board is connected to the first DC contactor via the eighth wiring harness and to the first gun wire control module via the ninth wiring harness; the second adapter circuit board is connected to the first parallel DC contactor via the twelfth wiring harness. The third adapter circuit board is connected to the second DC contactor via the tenth wiring harness and to the second gun wire control module via the eleventh wiring harness; the third adapter board is connected to the second parallel DC contactor via the thirteenth wiring harness.

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