Portable charging pile easy to test and move

Abstract

According to the portable charging pile easy to test and move, the complete system logic and the electrical principle of the charging pile are redesigned, so that the size of the charging pile is reduced, and universal rollers are designed, so that the charging pile is convenient to move; in the electrical aspect, the power supply can select 220V alternating current or 380V alternating current, and the 220V alternating current or the 380V alternating current is converted through the power supply conversion module, so that the stable charging of the charging gun module is ensured, and the adaptability in some scenes is higher; under the mutual cooperation of a mechanical structure and electricity, the scheme of electrical circuit modularization and electrical element replaceability is carried out, for replacement of electrical elements, control mainboards of different models need to be tested, the control mainboards are installed above the upper cover, and rapid wiring processing can be carried out; according to the overall scheme, the function that the electrical elements can be replaced simply and easily is achieved, and the charging pile can conduct function testing on various elements conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of charging, and in particular to a portable charging pile which is easy to test and move. Background Art

[0002] A charging pile is a device that replenishes power for electric vehicles. Its function is similar to that of a gas pump in a gas station. It can be fixed on the ground or on a wall and installed in public buildings (charging stations, shopping malls, public parking lots, etc.) and residential parking lots. It can charge various types of electric vehicles according to the adjusted voltage and current.

[0003] Problems:

[0004] 1. Due to the limited size and weight of the DC charging pile, it is not possible to move it lightly;

[0005] 2. Due to the electrical principle and electrical wiring of the DC charging pile, it is not easy to test the complete logic and program of the charging pile after replacing components;

[0006] 3. Due to the structure of the DC charging pile itself, many components cannot be quickly replaced;

[0007] 4. The voltage used in general office scenes is 220V. Due to the original electrical structure of the charging pile, it cannot be used in general office scenes. Utility Model Content

[0008] The utility model aims to solve the technical problem of providing a portable, easy-to-test and mobile charging pile, and the power supply of the charging pile can be 220V AC or 380V AC.

[0009] In order to solve the above technical problems, the utility model provides a technical solution for a charging pile that can be portable, has convenient components replacement, and is easy to test:

[0010] It includes a shell, a molded case switch, a switching power supply, a miniature circuit breaker, a control mainboard, an intermediate relay and a charging gun module; the molded case switch is connected to an external power supply; the molded case switch is connected to the miniature circuit breaker, the miniature circuit breaker is connected to the switching power supply, the switching power supply is connected to the control mainboard, and the control mainboard is connected to the intermediate relay; the charging gun module includes a power conversion module, a DC fuse, a first DC contactor, a DC smart meter and a DC gun line; the power conversion module is connected to the molded case switch, the power conversion module is connected to the DC fuse, the DC fuse is connected to the first DC contactor, and the DC gun line is connected to the DC gun line; the DC smart meter is connected to the power conversion module and the first DC contactor and connected in parallel with the DC fuse; an openable upper cover is connected above the shell; an upper mounting panel is installed in the shell; the DC smart meter, the first DC contactor miniature circuit breaker, the switching power supply and the DC fuse are all detachably mounted on the upper mounting panel; a fixed panel is detachably connected below the upper mounting panel in the shell; the power conversion module is detachably mounted on the fixed panel, and an inspection panel is detachably connected to the side of the power conversion module of the shell; a metal guide rail is connected to the side of the upper mounting panel of the shell; the intermediate relay is detachably fixed on the metal guide rail; a universal roller is detachably mounted below the shell; the control main board is detachably mounted above the upper cover.

[0011] The power supply is 220V AC or 380V AC.

[0012] There are two charging gun modules in total, namely A gun module and B gun module; a second DC contactor is connected between the A gun module and the B gun module through a copper bus; the second DC contactor can also be detachably installed on the upper mounting panel.

[0013] A shunt is also connected between the power conversion module and the first DC contactor; the shunt is connected in parallel with the DC fuse; and the DC smart meter is connected to the shunt.

[0014] It also includes a lightning protection unit; the lightning protection unit is connected to the control mainboard.

[0015] One end of the upper cover is hinged to the shell through a hinge, and the other end is connected with a lock.

[0016] It also includes a touch screen and an emergency stop button; the touch screen and the emergency stop button are respectively connected to the control main board, and the touch screen and the emergency stop button are installed on the side of the shell.

[0017] The molded case switch is connected to the power supply through the AC incoming line of the charging pile; a metal gland is installed between the AC incoming line of the charging pile and the housing.

[0018] The technical effects that can be achieved by the utility model are: the utility model redesigns the complete system logic and electrical principles of the charging pile, so that the size of the utility model can be reduced, and a universal roller is designed to make it easy to move, and the universal roller is connected in a detachable manner, which is convenient for replacing universal rollers of different sizes, specifications or models to suit different scenarios; in terms of electricity, the utility model can use 220V AC or 380V AC as the power supply, and convert it through a power conversion module to ensure stable charging of the charging gun module, making it more adaptable in some scenarios, such as being used as a DC charging pile for teaching. Equipment, placed in schools, etc.; under the mutual cooperation of mechanical structure and electrical, the electrical circuit modularization and electrical component replaceable scheme are carried out. In the replacement of electrical components, it is necessary to test different types of control mainboards. The control mainboard is installed above the upper cover and can be quickly wired; in the replacement of components, for example: DC smart meter, the first DC contactor, miniature circuit breaker, switching power supply and DC fuse, they can be disassembled and replaced by opening the upper cover, which is very convenient; the overall solution realizes the function of simple and easy replacement of electrical components, which is convenient for charging piles to carry out functional tests of various components. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 This is a schematic diagram of the structure of a portable, easy-to-test and mobile charging pile of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of a portable, easy-to-test and mobile charging pile after removing the upper cover of the utility model;

[0022] Figure 3 yes Figure 1 The structural diagram of the other side;

[0023] Figure 4 This is the main circuit diagram of a portable, easy-to-test and mobile charging pile (power supply is 380V AC) of the utility model. DETAILED DESCRIPTION

[0024] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0025] See also Figures 1 to 4 .

[0026] A portable charging pile that is easy to test and move, including a shell 3, a molded case switch 9, a miniature circuit breaker 15, a control mainboard 2, an intermediate relay 18, a charging gun module and switch power supplies 16, 17; the molded case switch 9 is connected to an external power supply, the power supply is 220V AC or 380V AC, and the molded case switch 9 is connected to the power supply through the charging pile AC incoming line 7; the molded case switch 9 is connected to the miniature circuit breaker 15, the miniature circuit breaker 15 is connected to the switch power supplies 16, 17, the switch power supplies 16, 17 are connected to the control mainboard 2, and the control mainboard 2 is connected to the intermediate relay 18; the charging gun module includes a power conversion module 8, a DC fuse 19, a first DC contactor 13, a DC smart meter 12 and DC gun line 1; the power conversion module 8 is connected to the molded case switch 9, the power conversion module 8 is connected to the DC fuse 19, the DC fuse 19 is connected to the first DC contactor 13, and the DC contactor 13 is connected to the DC gun line 1; the DC smart meter 12 is connected between the power conversion module 8 and the first DC contactor 13, and is connected in parallel with the DC fuse 19; specifically, a shunt 42 is connected between the power conversion module 8 and the first DC contactor 13, the shunt 42 is connected in parallel with the DC fuse 19, and the DC smart meter 12 is connected to the shunt 42; the specific utility model also includes a touch screen 5 and an emergency stop button 6, and the touch screen 5 and the emergency stop button 6 are respectively connected to the control mainboard 2.

[0027] Specifically, there are two charging gun modules in total, namely an A gun module and a B gun module. A second DC contactor 43 is connected between the A gun module and the B gun module via a copper bus 14 .

[0028] The DC gun line 1 of the utility model is used to test the charging pile. The maximum power usage scenario is to use two 40kw power conversion modules 8, which can be used in conjunction with a DC gun line 1 of 80A; the control motherboard 2 is used to complete the charging interaction with the BMS, control the charging status of the charging pile, collect operating data, and automatically shut down in an abnormal state, and has a background communication function; the touch screen 5 can use a 7-inch touch screen 5, on which the charging pile can be operated, the operation of the charging pile can be monitored, and the alarm information of the charging pile can be displayed; the emergency stop button 6 is used to press this button in the event of an emergency or accident to achieve the overall power outage of the test charging station; the charging pile AC incoming line 7 is optional Use 380V incoming line system or 220v incoming line system; the power conversion module 8 can be compatible with 20-40kw modules according to different brands and models of modules; the molded case switch 9 is for testing the overall power supply control of the charging station; the DC smart meter 12 uses microelectronic technology to measure DC power. The utility model DC smart meter 12 uses internationally advanced ultra-low power consumption large-scale integrated circuit technology and SMT process to manufacture high-tech products. The core chip uses a 32-bit high-precision ADC chip. The DC smart meter 12 has LCD display, power measurement, clock, RS485 communication, electric pulse and second signal output, instantaneous data measurement and monitoring, etc. It is suitable for direct The technical indicators of this DC smart meter 12 meet the requirements of GB / T33708-2017 "Static DC Energy Meter" standard. One RS485 interface supports DL / T645-2007 protocol and object-oriented DL / T698.45 protocol. The meter accuracy level is 1; the first DC contactor 13 and the second DC contactor 43 use non-polarity DC contactors that support a maximum voltage of 1000V and a current of 250A, which meet the use standards of the test charging station and can be replaced with DC contactors of different brands with the same frame. The performance parameters of DC contactors of different brands can be tested; the copper bus 14 is used to connect the first DC contactor 13 and The second DC contactor 43 plays the role of outputting power; the miniature circuit breaker 15 is the power control switch of the control circuit; the switching power supplies 16 and 17 provide DC12V or DC24V power supply to the control circuit, and after the DC gun line 1 is connected to the vehicle, provide the vehicle with the corresponding auxiliary power current required; the intermediate relay 18, in order to ensure the safety of the output interface of the control motherboard 2, the intermediate relay 18 is added to control the use of higher power equipment and ensure the safety of the control motherboard 2; the DC fuse 19, after selecting the DC fuse 19 of the corresponding current, it can be achieved when the rated current is exceeded, the overall output circuit can be cut off and the electrical components can be protected.

[0029] Specifically, the utility model is further provided with a lightning protection unit 41, which is connected to the control mainboard 2, and the lightning protection unit 41 is used to prevent damage to electrical components caused by thunder.

[0030] In the installation of electrical components, an openable upper cover 21 is connected to the upper part of the housing 3 of the utility model. Specifically, one end of the upper cover 21 is hinged to the housing 3 by a hinge 11, and the other end is connected to a lock 22; an upper mounting panel 33 is installed in the housing 3; the DC smart meter 12, the first DC contactor 13, the miniature circuit breaker 15, the second DC contactor 43, the switching power supplies 16, 17 and the DC fuse 19 are all detachably installed on the upper mounting panel 33, and the specific detachable connection can be connected by bolts; a fixed panel 31 is detachably connected below the upper mounting panel 33 in the housing 3, and the fixed panel 31 is connected to the housing 3 by bolts; the power conversion module 8 is detachably installed on the fixed panel 31, and the housing 3 has a power conversion module 8 side detachably connected with an inspection panel 32, and the power conversion module 8 is installed on the fixed panel 31 by bolts, and the inspection panel 3 2 is connected to the housing 3 by bolts; the housing 3 is connected to a metal rail 20 on the side of which a panel 33 is installed, and more electrical components can be installed through the metal rail 20; the intermediate relay 18 is detachably fixed to the metal rail 20, and specifically, the intermediate relay 18 can be fixed to the metal rail 20 by bolts; a universal roller 4 is detachably installed below the housing 3, and specifically, the universal roller 4 can be connected to the housing 3 by bolts, the control mainboard 2 is detachably installed above the upper cover 21, and the control mainboard 2 can also be installed above the upper cover 21 by bolts, and holes for the control mainboard 2 of different models are reserved on the upper cover 21, so that different models of control mainboards 2 can be quickly replaced, and it can be used as a test mainboard charging pile, all electrical circuits are plug-in inherited, and the control mainboard 2 can be quickly replaced for testing; the touch screen 5 and the emergency stop button 6 are installed on the side of the housing 3.

[0031] A metal gland 10 is installed between the charging pile AC incoming line 7 and the housing 3. The metal gland 10 is used to protect the charging pile AC incoming line 7. The cable sheath of the DC gun line 1 plays a safety protection role.

[0032] The utility model redesigns the complete system logic and electrical principle of the charging pile, so that the size of the utility model can be reduced, and a universal roller 4 is designed to make it easy to move, and the universal roller 4 is connected in a detachable manner, which is convenient for replacing universal rollers 4 of different sizes, specifications or models to adapt to different scenarios; in terms of electricity, the utility model can use 220V AC or 380V AC as the power supply, and convert it through the power conversion module 8 to ensure stable charging of the charging gun module, so that it has a higher adaptability in some scenarios, for example, it can be used as a DC charging pile teaching equipment, placed in a school, etc.; under the mutual cooperation of mechanical structure and electricity, A scheme of modularizing electrical circuits and making electrical components replaceable was implemented. In the replacement of electrical components, all electrical circuits were inherited by plug-in connection. Control mainboard 2 of different models needs to be tested. Control mainboard 2 is installed above the upper cover and can be quickly wired. In the replacement of components, for example: DC smart meter 12, first DC contactor 13, miniature circuit breaker 15, second DC contactor 43, switching power supply 16, 17 and DC fuse 19, they can be disassembled and replaced by opening the upper cover 21, which is very convenient. The overall scheme realizes the function of simple and easy replacement of electrical components, which is convenient for charging piles to perform functional tests of various components.

Claims

1. A portable, easy-to-test and mobile charging station, characterized by: The invention comprises a housing (3), a molded case switch (9), a switching power supply (16, 17), a miniature circuit breaker (15), a control mainboard (2), an intermediate relay (18) and a charging gun module; the molded case switch (9) is externally connected to a power supply; the molded case switch (9) is connected to the miniature circuit breaker (15), the miniature circuit breaker (15) is connected to the switching power supply (16, 17), the switching power supply (16, 17) is connected to the control mainboard (2), the control mainboard (2) is connected to the intermediate relay (18); the charging gun module The invention comprises a power conversion module (8), a DC fuse (19), a first DC contactor (13), a DC smart meter (12) and a DC gun line (1); the power conversion module (8) is connected to a molded case switch (9), the power conversion module (8) is connected to a DC fuse (19), the DC fuse (19) is connected to the first DC contactor (13), and the first DC contactor (13) is connected to the DC gun line (1); the DC smart meter (12) is connected to the power conversion module (8) and the first DC The housing (3) is connected between the first DC contactor (13) and the DC fuse (19) in parallel; an openable upper cover (21) is connected above the housing (3); an upper mounting panel (33) is installed in the housing (3); the DC smart meter (12), the first DC contactor (13), the miniature circuit breaker (15), the switching power supply (16, 17) and the DC fuse (19) are all detachably mounted on the upper mounting panel (33); a fixed cover (21) is detachably connected below the upper mounting panel (33) in the housing (3); The panel (31) is provided; the power conversion module (8) is detachably mounted on the fixed panel (31), and the side of the power conversion module (8) of the housing (3) is detachably connected to an inspection panel (32); the side of the mounting panel (33) on the housing (3) is connected to a metal guide rail (20); the intermediate relay (18) is detachably fixed on the metal guide rail (20); a universal roller (4) is detachably mounted below the housing (3); and the control main board (2) is detachably mounted above the upper cover (21).

2. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: The power supply is 220V AC or 380V AC.

3. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: There are two charging gun modules in total, namely an A gun module and a B gun module; a second DC contactor (43) is connected between the A gun module and the B gun module via a copper bus (14); the second DC contactor (43) can also be detachably mounted on the upper mounting panel (33).

4. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: A shunt (42) is also connected between the power conversion module (8) and the first DC contactor (13); the shunt (42) is connected in parallel with the DC fuse (19); and the DC smart meter (12) is connected to the shunt (42).

5. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: It also includes a lightning protection unit (41); the lightning protection unit (41) is connected to the control main board (2).

6. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: One end of the upper cover (21) is hinged to the housing (3) via a hinge (11), and the other end is connected to a lock buckle (22).

7. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: It also includes a touch screen (5) and an emergency stop button (6); the touch screen (5) and the emergency stop button (6) are respectively connected to the control main board (2), and the touch screen (5) and the emergency stop button (6) are installed on the side of the shell (3).

8. A portable, easy-to-test and mobile charging station according to claim 1, characterized in that: The molded case switch (9) is connected to a power source via a charging pile AC incoming line (7); a metal cable gland (10) is installed between the charging pile AC incoming line (7) and the housing (3).

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