Charging pile intelligent aging device and circuit control method thereof

Abstract

The invention provides a charging pile intelligent aging device and a circuit control method thereof, and the method comprises the steps: switching on a switch QF, and enabling a charging pile C1 to be electrified; a first charging main control unit in the charging pile C1 detects that an R1CP resistor of a charging base connected with the first charging main control unit is a 1K omega resistance value through a charging gun, and the first charging main control unit is judged to be in a reliable connection state; a charging relay J is closed, so that a charging gun I is electrified, and then a charging seat I connected with the charging gun I is electrified; a coil of the middle relay J1 is powered on, a normally open contact NO of the middle relay J1 connected to the charging base in series is closed, a normally closed contact NC of the middle relay J1 is disconnected, and charging output of the charging pile C1 is that a charging pile C2 connected to the rear end of the normally open contact of the middle relay J1 is powered on; the normally-closed contact NC of the middle relay J1 is disconnected due to the fact that the coil is electrified, and therefore isolation of auxiliary power supply and main power supply of the charging pile C1 is achieved. Through the device and the corresponding control method, automatic relay power supply for aging of the charging pile is realized, and the position of the aging fault charging pile can be indicated.

Description

Technical Field

[0001] The invention provides a charging pile intelligent aging device and a circuit control method thereof, and relates to the technical field of charging piles. Background Art

[0002] With the rapid increase in the popularity of new energy electric vehicles, the demand for household AC charging piles is increasing. In order to increase production capacity and meet social needs, many manufacturers adopt a series aging solution to improve aging efficiency and production capacity. However, since the AC charging pile is equivalent to a knife switch in electrical principle, during aging, it is necessary to connect all the AC charging piles in series from the first AC charging pile in sequence, and no connection can be missed in the middle. For example, if the series aging rack of a manufacturer is 25 stations, all 25 stations must be connected to the AC charging piles before the aging can be started. Such aging connection and operation methods are very inflexible and inefficient; secondly, during the aging process, if any AC charging pile is damaged, its internal relay will actively disconnect the output, forming a fault breakpoint, causing all subsequent AC charging piles to lose power. At this time, it is necessary to manually replace the damaged AC charging pile and restart all AC charging piles, which leads to extremely low aging efficiency of AC charging piles and seriously affects production capacity. Summary of the invention

[0003] The present invention provides a charging pile intelligent aging device and a circuit control method thereof, 1) adding an auxiliary power supply line to the series-connected aging AC charging pile, using a relay relay with a normally open / normally closed conversion function to control the switching relationship between the auxiliary power supply line and the aging main power supply line, realizing the power supply connection of the relay common point, and setting a fault indication sound and light alarm lamp.

[0004] 2) The normally open contact of the relay relay is connected in series in the main power supply line, and its normally closed circuit is connected in series in the additional power supply line. The normally open and normally closed output ends are the relay common points. When the AC charging piles in series are powered on normally and aged, the AC charging piles output normally to power the relay coils in series behind them, and the normally open contact of the relay relay is closed, thus realizing the automatic power supply of the aged charging piles in series.

[0005] 3) At the same time, the synchronous disconnection of the normally closed contacts of the relay relay realizes the effective isolation of its auxiliary power supply line, avoiding the charging pile error caused by the simultaneous operation of the dual power supply. During aging, if any AC charging pile has an abnormality and forms a fault breakpoint, the AC charging pile will disconnect the output, thereby the relay relay coil loses power, and the normally closed contacts in the auxiliary power supply line resume the closed state, so that the relay common point after the main power supply line breakpoint of the faulty AC charging pile can be connected in parallel from the auxiliary power supply line, so that the AC charging pile behind the fault breakpoint is still powered, effectively avoiding the impact of the fault breakpoint on subsequent AC charging piles.

[0006] The present invention provides a charging pile intelligent aging device, the charging pile intelligent aging device comprising:

[0007] Power distribution module: provides input power for the entire charging pile intelligent aging device and transmits the input power to the charging pile C1 module;

[0008] Charging pile C1 module: monitors whether the vehicle is correctly connected and starts and stops charging, and outputs the input power to the first relay control module;

[0009] The first relay control module: isolates the charging pile C1 module from the charging pile C2 module, and controls whether to transfer power to the charging pile C2 module;

[0010] Charging pile C2 module: provides charging function, interacts with the charging gun and the vehicle, and transmits the input power to the relay control module;

[0011] The second relay control module: receives the output signal from the charging pile C2 and controls whether the power is transmitted to the charging pile Cn module;

[0012] Charging pile Cn module: realizes interaction with the charging gun, completes the charging task, and outputs power to the next level as needed;

[0013] The Nth relay control module: controls whether the power input of the charging pile Cn module is turned on. If there is a subsequent charging pile module, it continues to transmit power.

[0014] Furthermore, the power distribution module includes: a distribution box and a switch QF, the power supply wires L and N of the distribution box are connected to the charging pile C1, wherein the wire L is connected in series to the switch QF.

[0015] Furthermore, the charging pile C1 module includes: a first charging main control unit, a load detection resistor R 1CP , sound and light warning light D1, charging gun 1 and charging base 1, the power supply wires L and N of the power distribution module are fixedly connected to the charging relay J and charging gun 1 inside the charging pile C1 at the rear end of the switch QF.

[0016] Furthermore, the first relay control module includes a middle relay J1 and a normally closed relay K1 , and a digital signal input end of a normally open contact NO of the middle relay J1 is connected to a digital signal output end of the charging station 1 .

[0017] Furthermore, the charging pile C2 module includes: a second charging main control unit, a load detection resistor R 2CP , indicator light D2, charging gun 2 and charging base 2, the digital signal input end of the charging pile C2 module is connected to the normally open contact NO digital signal output end of the middle relay J1.

[0018] Furthermore, the second relay control module includes a middle relay J2 and a normally closed relay K2 , and a digital signal input end of a normally open contact NO of the middle relay J2 is connected to a digital signal output end of the charging base 1 .

[0019] Furthermore, the charging pile Cn module Nth charging main control unit, load detection resistor R nCP , indicator light Dn, charging gun N and charging base N, the digital signal output end of the charging pile Cn module is connected to the normally open contact NO digital signal output end of the middle relay Jn-1.

[0020] Furthermore, the Nth relay control module includes a middle relay JN and a normally closed relay KN, and the digital signal input end of the normally open contact NO of the middle relay JN is connected to the digital signal output end of the charging station N.

[0021] Furthermore, the resistance value of the load detection resistor of all charging pile modules is 1KΩ and the load detection resistor of all charging pile modules is connected between the CP line and PE line of the corresponding charging pile module. The digital signal input end of all charging pile modules is connected in parallel to the sound and light warning light, and the sound and light warning light is controlled by a normally closed relay.

[0022] Furthermore, the circuit control method of the charging pile intelligent aging device includes:

[0023] Close switch QF, and charging pile C1 is powered;

[0024] The first charging main control unit in the charging pile C1 detects the R of the charging base connected to it through the charging gun. 1CP The resistance is 1KΩ, which is considered to be a reliable connection state;

[0025] The charging relay J is closed to power the charging gun 1, thereby powering the charging base 1 connected to the charging gun 1;

[0026] The charging seat 1 is powered so that the coil of the middle relay J1 is powered, the normally open contact NO of the middle relay J1 connected in series with the charging seat 1 is closed, and the normally closed contact NC is disconnected, so that the charging output of the charging pile C1 is powered for the charging pile C2 connected to the rear end of the normally open contact of the middle relay J1;

[0027] The normally closed contact NC of the middle relay J1 is disconnected due to the coil being energized, thereby isolating the auxiliary power supply from the main power supply of the charging pile C1;

[0028] When charging pile C2 is powered, it enables charging pile C2 to charge and output normally and provide input for subsequent charging piles.

[0029] Beneficial effects of the invention: The invention effectively solves the inefficiency problem that when AC charging piles are connected in series and age, they must be fully connected in series, and that when AC charging piles are aged and damaged, all AC charging piles lose power and need to be replaced manually. It greatly improves the aging efficiency of AC charging piles and the degree of automation of aging devices; it can realize automatic relay power supply for aging charging piles and indicate the location of aging fault charging piles, with simple operation and low cost. The typical application of the invention is the automatic aging of batches of AC charging piles. At the aging station, the number of charging piles actually put into aging is not limited, and one can also be aged, which is very convenient and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of an intelligent aging device for a charging pile according to the present invention. DETAILED DESCRIPTION

[0031] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is 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.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. The embodiments described are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] One embodiment of the present invention provides a charging pile intelligent aging device, the charging pile intelligent aging device comprising:

[0035] Power distribution module: provides input power for the entire charging pile intelligent aging device and transmits the input power to the charging pile C1 module;

[0036] Charging pile C1 module: monitors whether the vehicle is correctly connected and starts and stops charging, and outputs the input power to the first relay control module;

[0037] The first relay control module: isolates the charging pile C1 module from the charging pile C2 module, and controls whether to transfer power to the charging pile C2 module;

[0038] Charging pile C2 module: provides charging function, interacts with the charging gun and the vehicle, and transmits the input power to the relay control module;

[0039] The second relay control module: receives the output signal from the charging pile C2 and controls whether the power is transmitted to the charging pile Cn module;

[0040] Charging pile Cn module: realizes interaction with the charging gun, completes the charging task, and outputs power to the next level as needed;

[0041] The Nth relay control module: controls whether the power input of the charging pile Cn module is turned on. If there is a subsequent charging pile module, it continues to transmit power.

[0042] In the present invention, the auxiliary power supply circuit starts with the connection of the power supply conductors L and N from the switch QF, first connects the normally closed contact NC of the relay relay J1, and the output end of the normally closed contact NC is connected to the output end of its normally open contact NO to form a common connection point. Afterwards, this common connection point is connected in series with the normally closed contact NC of the relay relay J2. Similarly, the output end of its normally closed contact NC is connected to the output end of its normally open contact NO to form a common connection point, and so on. Finally, it is connected in series to the normally closed contact NC of the last relay relay Jn. Similarly, the output end of its normally closed contact NC is connected to the output end of its normally open contact NO to form a common connection point, and is connected to the aging load LOAD, thereby forming an auxiliary power supply circuit parallel to the aging main power supply circuit of the AC charging pile, realizing the main and auxiliary power supply relationship for the aging AC charging pile, and the control and switching of the main and auxiliary power supply circuits at the fault breakpoint are realized by the intermediate relay (J1~Jn).

[0043] The working principle and effect of the above technical solution are as follows: the power distribution module provides input power for the entire charging pile system and distributes the power to each charging pile module (C1, C2, Cn), and its function is to provide stable power input for the intelligent aging device of the charging pile; the charging pile C1 module is responsible for detecting whether the vehicle is correctly connected, and starting or stopping the charging operation. After charging starts, the charging pile C1 module outputs the input power to the first relay control module; the first relay control module realizes the isolation between the charging pile C1 module and the charging pile C2 module, and is responsible for deciding whether to transfer the power from the C1 module to the C2 module according to the control signal, thereby ensuring the safety and independence of the power distribution; the charging pile C2 module provides the actual charging function, interacts with the charging gun and the vehicle, outputs the input power to the second relay control module, and monitors the charging process at the same time; the second relay control module receives the output signal of the charging pile C2, controls whether to transfer the power to the next module (charging pile Cn module), and plays a role in controlling and isolating the power transmission; the charging pile Cn The module interacts with the charging gun to complete specific charging tasks, outputs power to the next-level module (if any) as required, and monitors the status of the entire charging task; the Nth relay control module is responsible for controlling whether the power input of the charging pile Cn module is turned on. If there are subsequent charging pile modules, it continues to pass the power to the next module to ensure the scalability of the system. Modular design improves flexibility. The charging pile modules (C1, C2, Cn) are isolated by the relay control module to ensure the flexibility of the modular design; the independence of each module is enhanced to facilitate system expansion, maintenance and troubleshooting; security is enhanced. The power transmission path is isolated by the relay control module to prevent electrical interference between modules and improve the safety and reliability of the system; when a module fails, it will not affect the normal operation of other modules; efficient power management, the power transmission is precisely controlled by the relay control module to avoid unnecessary power loss, realize the controllability of power distribution, and optimize the overall energy efficiency of the system; support multi-level charging pile expansion, through the relay control module, the system can be infinitely expanded to more charging pile modules according to demand. , achieving flexible system configuration; particularly suitable for large-scale parallel aging test scenarios of charging piles, each charging pile module interacts with the charging gun and the vehicle, supports monitoring of the vehicle status and start and stop control of charging, and meets actual charging needs; the monitoring mechanism ensures the correct connection status of the vehicle to prevent misoperation and unsafe situations; the entire system is controlled layer by layer through the relay module, with clear logic, which is convenient for centralized management and scheduling; each level of relay module clarifies its own tasks and reduces system complexity; through modular design and the application of relay control modules, intelligent, safe and efficient power management and charging functions are realized, with good scalability and reliability. At the same time, it is particularly suitable for aging tests of large-scale charging piles, and can improve the stability and test efficiency of the charging pile system.

[0044] In one embodiment of the present invention, the power distribution module includes: a distribution box and a switch QF, wherein the power supply wires L and N of the distribution box are connected to the charging pile C1, wherein the wire L is connected in series to the switch QF.

[0045] In one embodiment of the present invention, the charging pile C1 module includes: a first charging main control unit, a load detection resistor R 1CP , sound and light warning light D1, charging gun 1 and charging base 1, the power supply wires L and N of the power distribution module are fixedly connected to the charging relay J and charging gun 1 inside the charging pile C1 at the rear end of the switch QF.

[0046] The working principle and effect of the above technical solution are as follows: the distribution box is responsible for supplying power, and transmits power to the charging pile module through wires L and N. The switch QF is used to control the on and off of power. The wire L is connected in series with the switch QF, and the system can be powered off manually or automatically for safety management; the charging pile module structure, the first charging main control unit is responsible for controlling the entire charging process, managing and monitoring the charging parameters, the load detection circuit monitors the current and voltage changes, judges the load status, and detects abnormal conditions such as overvoltage and undervoltage; the sound and light warning light D1 provides users with intuitive charging status and fault prompts, and warns through sound and light signals; the charging gun is connected to the power supply wire through the charging relay J, which has the functions of plugging and unplugging and fixing to complete the actual charging operation; after the power enters the system through the switch QF, it is transmitted to the charging gun 1 through the charging relay J; the charging relay J controls the on and off to ensure that power is only provided after safety detection; the load detection resistor monitors the charging status in real time, and triggers an alarm or stops charging when necessary; the intelligent aging test simulates the usage scenarios under different environmental conditions through long-term operation and monitoring, and the main control unit can perform periodic self-inspection to ensure that the equipment maintains stable performance during the aging process. Improve safety, timely identify and respond to potential risks through monitoring and fault warning mechanisms, and reduce the occurrence of electrical accidents; extend the life of equipment, through intelligent aging tests, identify weaknesses or fatigue points in advance, and perform maintenance to improve overall life and reliability; optimize user experience, sound and light warning lights provide instant status feedback, users can quickly understand the operation of the equipment, and reduce the risk of misoperation; reduce maintenance costs, modular design makes it easy to detect problems and repair them, reducing the need for large-scale replacement of the entire system; intelligent aging tests not only ensure the stability of the equipment under high load and long-term use, but also provide data support for subsequent product improvements; make charging equipment easier to maintain, more reliable, and have a good user interaction experience. The system ensures that the equipment is always in the best working condition in an automatic and intelligent way.

[0047] In one embodiment of the present invention, the first relay control module includes a middle relay J1 and a normally closed relay K1 , and a digital signal input terminal of a normally open contact NO of the middle relay J1 is connected to a digital signal output terminal of the charging station 1 .

[0048] In one embodiment of the present invention, the charging pile C2 module includes: a second charging main control unit, a load detection resistor R 2CP , indicator light D2, charging gun 2 and charging base 2, the digital signal input end of the charging pile C2 module is connected to the normally open contact NO digital signal output end of the middle relay J1.

[0049] In one embodiment of the present invention, the second relay control module includes a middle relay J2 and a normally closed relay K2, and the digital signal input end of the normally open contact NO of the middle relay J2 is connected to the digital signal output end of the charging station 1.

[0050] In one embodiment of the present invention, the charging pile Cn module Nth charging main control unit, load detection resistor R nCP , indicator light Dn, charging gun N and charging base N, the digital signal output end of the charging pile Cn module is connected to the normally open contact NO digital signal output end of the middle relay Jn-1.

[0051] In one embodiment of the present invention, the Nth relay control module includes a middle relay JN and a normally closed relay KN, and the digital signal input end of the normally open contact NO of the middle relay JN is connected to the digital signal output end of the charging station N.

[0052] In one embodiment of the present invention, the resistance value of the load detection resistor of all charging pile modules is 1KΩ and the load detection resistor of all charging pile modules is connected between the CP line and the PE line of the corresponding charging pile module, and the digital signal input end of all charging pile modules is connected in parallel to the sound and light warning light, and the sound and light warning light is controlled by a normally closed relay.

[0053] The working principle and effect of the above technical solution are as follows: the middle relay (J1, J2, …, JN) is used to control the on and off of the circuit. Their normally open contacts (NO) are connected to the digital signal of the charging station, and they will only close when receiving a signal to allow the circuit to pass. Normally closed relays (K1, K2, …, KN): They are usually closed, and will open when receiving specific signals or situations, playing the role of emergency power off; each charging pile module is equipped with a main control unit, load detection resistors (R1CP, R2CP, …, RnCP), indicator lights (D1, D2, …, Dn), charging guns and charging stations; the load detection resistor (value is 1KΩ) is connected between the CP line and the PE line to detect abnormal current or voltage, so as to judge the load status; the transmission of digital signals establishes a connection through the normally open contacts of the middle relay, and is passed from one charging module to the next, thereby realizing cascade control between modules; the digital signal input terminals of all charging pile modules are connected in parallel to the sound and light warning lights to provide status indications; the normally closed relay controls the warning light. When an abnormality is detected, the relay opens and the light comes on to provide user warnings. Safety is improved. The architecture of relays and normally closed relays ensures that power can be quickly cut off in abnormal situations to avoid safety hazards. The load detection resistor continuously monitors the load status and promptly identifies abnormal electrical loads. Efficient management. Each module transmits through digital signals to achieve intelligent cascading and coordinated control, improving the efficiency and response speed of the overall system. The sound and light warning lights provide real-time status feedback to help quickly identify and handle abnormalities. Through modular design, each charging pile module can work independently or in combination, giving the system good scalability and ease of maintenance. Through long-term performance monitoring and data collection of each module, the actual use environment can be simulated to perform intelligent aging tests. Data feedback is used for product improvement and user guidance, which helps to extend the service life of the equipment and improve performance. This allows the charging pile equipment to maintain excellent performance during aging tests and ensure reliability and safety in actual use.

[0054] In one embodiment of the present invention, the circuit control method of the charging pile intelligent aging device includes:

[0055] Close switch QF, and charging pile C1 is powered;

[0056] The first charging main control unit in the charging pile C1 detects the R of the charging base connected to it through the charging gun. 1CP The resistance is 1KΩ, which is considered to be a reliable connection state;

[0057] The charging relay J is closed to power the charging gun 1, thereby powering the charging base 1 connected to the charging gun 1;

[0058] The charging seat 1 is powered so that the coil of the middle relay J1 is powered, the normally open contact NO of the middle relay J1 connected in series with the charging seat 1 is closed, and the normally closed contact NC is disconnected, so that the charging output of the charging pile C1 is powered for the charging pile C2 connected to the rear end of the normally open contact of the middle relay J1;

[0059] The normally closed contact NC of the middle relay J1 is disconnected due to the coil being energized, thereby isolating the auxiliary power supply from the main power supply of the charging pile C1, and avoiding the situation where the charging main control of the charging pile C1 misjudges the charging as sticking and issues an abnormal alarm due to the simultaneous supply of power from the normal charging output of the charging pile C1 and the auxiliary power supply that is not controlled by it;

[0060] When the charging pile C2 is powered, it enables the charging pile C2 to charge and output normally and provide input for subsequent charging piles, including: when the charging pile C2 is powered, it forms a new power path with the subsequent charging piles, and distributes the load of each charging pile through a dynamic load balancing optimization model, that is, adjusting the operating state of each pile according to real-time electrical characteristics and efficiency parameters. Specifically, the dynamic load balancing optimization model is:

[0061]

[0062] in, represents the balanced load power of the i-th charging pile, represents the actual power of the i-th charging pile, represents the efficiency coefficient of the charging pile, represents the leakage inductance in the transmission path of the jth charging pile, represents the voltage drop during the connection between the j-th charging pile and the j-1-th charging pile, Represents the resistance of the load detection corresponding to the jth charging pile;

[0063] After dynamic load optimization, i.e., after the cascading process, the charging pile status is monitored in real time to detect faults. When the fault detection parameter is greater than or equal to the preset threshold, it indicates that the charging pile has a fault.

[0064]

[0065] in, represents the fault detection parameters, and are the input voltage and input current of the charging pile respectively, and They are the output voltage and output current of the charging pile respectively.

[0066] The working principle and effect of the above technical solution are as follows: initial power supply, switch QF is closed, power supply wire L makes charging pile C1 powered, at this time charging pile C1 is in standby state; connection detection, the first charging main control unit inside charging pile C1 detects that the R1CP resistance value of the charging base is 1KΩ through the charging gun, indicating that the connection state is reliable and allows charging to continue; the charging process starts,

[0067] After detecting a reliable connection, the charging main control unit closes the charging relay J, so that the charging gun is energized, and the charging base is also energized; after the charging base is energized, the coil of the middle relay J1 is energized, causing the normally open contact NO of J1 to close, so that the charging pile C2 is energized and starts working, and the normally closed contact NC of J1 is disconnected, isolating the main power supply and auxiliary power supply of the charging pile C1 to prevent misjudgment; due to the closure of the normally open contact of the middle relay J1, after the charging pile C2 is energized, it can charge and output normally, and provide power input for subsequent charging piles (such as C3). Reliable cascade power supply realizes the cascade power supply of multiple charging piles. Each charging pile can only start working after the previous charging pile confirms that charging is successful, ensuring orderly power supply and management. By controlling the normally open and normally closed contacts through the middle relay J1, it can effectively avoid the charging pile C1 from being misjudged as a sticky state due to uncontrolled auxiliary power supply, thereby reducing the occurrence of abnormal alarms. Security and independence are enhanced. By switching between normally open contacts and normally closed contacts, it is ensured that the main power supply and auxiliary power supply of different charging piles do not conflict, ensuring the safety and independent operation of each module. Efficient resource utilization. Through reasonable signal and power distribution, each charging pile can obtain power resources at the appropriate time and ensure the improvement of aging efficiency. Through precise detection, reliable signal control and effective isolation between modules, the safety, effectiveness and scalability of the multi-charging pile system are ensured.

[0068] In a multi-level connected charging pile system, each pile affects each other under load. The dynamic load balancing optimization model is to ensure that the power can be smoothly transmitted in the system during the aging process by considering the electrical characteristics of each node. The efficiency coefficient takes into account the energy efficiency of each charging pile. This enables the system to optimize the load distribution according to the efficiency of each charging pile. More efficient equipment can bear more load, while inefficient equipment can reduce the load, thereby improving the overall energy efficiency. By applying the dynamic load balancing formula in the above steps, it is possible to effectively manage the power transmission between each charging pile, achieve a smooth transition of the system, and minimize any risk of power outages or instability. Efficient resource utilization avoids overload or waste of resources, thereby improving the contribution and efficiency of each charging pile in the entire aging test system. Instant fault detection, since the load is dynamically adjusted, any abnormal load changes can be quickly reflected in the system monitoring, so that possible faults or connection problems can be quickly detected. This makes the aging test of the charging pile more efficient, and at the same time provides a basis for more accurate load management and fault prediction, which is particularly important when realizing large-scale deployment of charging pile networks, and can effectively improve the reliability and stability of the overall system.

[0069] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A charging pile intelligent aging device, characterized in that: The charging pile intelligent aging device comprises: Power distribution module: provides input power for the entire charging pile intelligent aging device and transmits the input power to the charging pile C1 module; Charging pile C1 module: monitors whether the vehicle is correctly connected and starts and stops charging, and outputs the input power to the first relay control module; The first relay control module: isolates the charging pile C1 module from the charging pile C2 module, and controls whether to transfer power to the charging pile C2 module; Charging pile C2 module: provides charging function, interacts with the charging gun and the vehicle, and transmits the input power to the relay control module; The second relay control module: receives the output signal from the charging pile C2 and controls whether the power is transmitted to the charging pile Cn module; Charging pile Cn module: realizes interaction with the charging gun, completes the charging task, and outputs power to the next level as needed; The Nth relay control module: controls whether the power input of the charging pile Cn module is turned on. If there is a subsequent charging pile module, it continues to transmit power.

2. According to claim 1, a charging pile intelligent aging device is characterized in that: The power distribution module includes: a distribution box and a switch QF, wherein the power supply wires L and N of the distribution box are connected to the charging pile C1, wherein the wire L is connected in series to the switch QF.

3. According to claim 1, a charging pile intelligent aging device is characterized in that: The charging pile C1 module includes: a first charging main control unit, a load detection resistor R 1CP , sound and light warning light D1, charging gun 1 and charging base 1, the power supply wires L and N of the power distribution module are fixedly connected to the charging gun 1 via the charging relay J inside the charging pile C1 at the rear end of the switch QF.

4. According to claim 1, a charging pile intelligent aging device is characterized in that: The first relay control module includes a middle relay J1 and a normally closed relay K1 , and the digital signal input end of the normally open contact NO of the middle relay J1 is connected to the digital signal output end of the charging base 1 .

5. According to claim 1, a charging pile intelligent aging device is characterized in that: The charging pile C2 module includes: a second charging main control unit, a load detection resistor R 2CP , indicator light D2, charging gun 2 and charging base 2, the digital signal input end of the charging pile C2 module is connected to the normally open contact NO digital signal output end of the middle relay J1.

6. According to claim 1, a charging pile intelligent aging device is characterized in that: The second relay control module includes a middle relay J2 and a normally closed relay K2 , and the digital signal input end of the normally open contact NO of the middle relay J2 is connected to the digital signal output end of the charging base 1 .

7. According to claim 1, a charging pile intelligent aging device is characterized in that: The charging pile Cn module Nth charging main control unit, load detection resistor R nCP , indicator light Dn, charging gun N and charging base N, the digital signal output end of the charging pile Cn module is connected to the normally open contact NO digital signal output end of the middle relay Jn-1.

8. According to claim 1, a charging pile intelligent aging device is characterized in that: The Nth relay control module includes a middle relay JN and a normally closed relay KN, and the digital signal input end of the normally open contact NO of the middle relay JN is connected to the digital signal output end of the charging seat N.

9. The intelligent aging device for charging pile according to claim 1, characterized in that: The resistance value of the load detection resistor of all charging pile modules is 1KΩ and the load detection resistor of all charging pile modules is connected between the CP line and PE line of the corresponding charging pile module. The digital signal input end of all charging pile modules is connected in parallel to the sound and light warning light, and the sound and light warning light is controlled by a normally closed relay.

10. The intelligent aging device for charging pile according to claim 1, characterized in that: The circuit control method of the charging pile intelligent aging device includes: Close switch QF, and charging pile C1 is powered; The first charging main control unit in the charging pile C1 detects the R of the charging base connected to it through the charging gun. 1CP The resistance is 1KΩ, which is considered to be a reliable connection state; The charging relay J is closed to power the charging gun 1, thereby powering the charging base 1 connected to the charging gun 1; The charging seat 1 is powered so that the coil of the middle relay J1 is powered, the normally open contact NO of the middle relay J1 connected in series with the charging seat 1 is closed, and the normally closed contact NC is disconnected, so that the charging output of the charging pile C1 is powered for the charging pile C2 connected to the rear end of the normally open contact of the middle relay J1; The normally closed contact NC of the middle relay J1 is disconnected due to the coil being energized, thereby isolating the auxiliary power supply from the main power supply of the charging pile C1; When charging pile C2 is powered, it enables charging pile C2 to charge and output normally and provide input for subsequent charging piles.

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