Charging pile system

Abstract

The utility model provides a charging pile system. The charging pile system comprises an indoor unit system and an outdoor unit system, the indoor unit system comprises a power input module, a rectifier module, a first copper bar, a second copper bar and an indoor unit control module, and the outdoor unit system comprises an outdoor unit control module and a charging gun module; the power supply input module is connected with the rectification module through a first copper bar and is used for sending the received three-phase alternating current to the rectification module through the first copper bar; the indoor unit control module is in communication connection with the outdoor unit control module, so that the outdoor unit control module sends a working signal to the indoor unit control module after receiving a user demand; the output end of the rectifier module is in communication connection with the indoor unit control module through a second copper bar, so that the indoor unit control module determines an indoor unit output signal output by the second copper bar according to the working signal; the second copper bar is further connected with the charging gun module so as to supply power to the charging gun module according to the output signal of the indoor unit. According to the charging pile system provided by the invention, the flexibility of the charging pile can be improved.

Description

Technical Field

[0001] This application relates to the field of charging pile technology, and in particular to a charging pile system. Background Technology

[0002] DC charging stations convert direct current (DC) to alternating current (AC), providing fast charging services for electric vehicles. Compared to AC charging stations, DC charging stations offer faster charging speeds, fully charging electric vehicles in a shorter time, making them the mainstream charging option currently available.

[0003] However, traditional integrated national standard DC charging piles are usually designed with a fixed configuration. This fixed design and result may limit the possibility of upgrading, making the existing DC charging piles less flexible in the face of different charging needs. This limits the flexibility and scalability of the charging piles, and may cause the existing DC charging piles to be unable to meet new charging needs in the future, resulting in problems such as low charging efficiency and charging interruption. Utility Model Content

[0004] To increase the flexibility of charging stations, this application provides a charging station system.

[0005] A charging pile system includes an indoor unit system and an outdoor unit system, wherein the indoor unit system includes a power input module, a rectifier module, a first copper busbar, a second copper busbar, and an indoor unit control module, and the outdoor unit system includes an outdoor unit control module and a charging gun module;

[0006] The power input module is connected to the rectifier module through the first copper busbar, and is used to send the received three-phase AC power to the rectifier module through the first copper busbar;

[0007] The indoor unit control module is communicatively connected to the outdoor unit control module, so that the outdoor unit control module can send a working signal to the indoor unit control module after receiving the user's request.

[0008] The output terminal of the rectifier module is communicatively connected to the indoor unit control module through the second copper busbar, so that the indoor unit control module determines the indoor unit output signal output by the second copper busbar according to the working signal;

[0009] The second copper busbar is also connected to the charging gun module to supply power to the charging gun module according to the output signal of the indoor unit.

[0010] By adopting the above technical solution, the charging pile system is divided into a split-type charging system using an indoor unit system and an outdoor unit system. The indoor unit system includes a power input module, a rectifier module, a first copper busbar, a second copper busbar, and an indoor unit control module. These components are connected sequentially, allowing three-phase AC power to be input to the power input module, which then transmits the AC power through the first copper busbar to the rectifier module. The rectifier module converts the AC power to DC power, outputting high-voltage DC power, which is then transmitted to the second copper busbar. The outdoor unit system includes a charging gun module and an outdoor unit control module. The outdoor unit control module is connected to the indoor unit control module, and the second copper busbar is connected to the charging gun module. The outdoor unit control module receives user requests, generates corresponding operating signals based on these requests, and sends these signals to the indoor unit control module. The indoor unit control module, through its connection with the second copper busbar, determines the appropriate indoor unit output signal from the second copper busbar. Finally, based on the connection between the second copper busbar and the charging gun module, power is supplied to the charging gun according to the indoor unit output signal. Compared to traditional integrated national standard DC charging pile systems, this application's embodiment adopts a split-type national standard DC charging pile system. Compared to traditional integrated charging pile systems, split-type charging pile systems are easier to relocate or have components replaced. Upgrades to split-type systems only require modifications to the rectifier module, offering greater upgrade potential. They can be flexibly configured and adjusted according to actual needs, increasing the charging pile's flexibility. After all, integrated charging piles typically make the entire device bulky, unsightly, and difficult to move after installation.

[0011] Furthermore, separating the high-voltage input and transformer sections, leaving only the communication control section at the user end, not only reduces the size and cost of the charging pile but also mitigates the risk of electric shock for users. Moreover, integrated charging pile systems often require complete repair or replacement if a problem occurs, increasing both repair difficulty and maintenance costs. In contrast, the split-type charging pile system disclosed in this application operates independently, allowing for separate repairs and replacements, thus reducing maintenance costs and facilitating future maintenance.

[0012] Preferably, the power input module includes a first power input module and a second power input module, and the rectifier module includes a first rectifier module and a second rectifier module. The first rectifier module includes a plurality of rectifiers, and the second rectifier module includes a plurality of rectifiers.

[0013] The first power input module is connected to the first rectifier module through the first copper busbar, and is used to send the received three-phase AC power to each rectifier in the first rectifier module through the first copper busbar;

[0014] The second power input module is connected to the second rectifier module through the first copper busbar, and is used to send the received three-phase AC power through the first copper busbar to each rectifier in the second rectifier module.

[0015] By adopting the above technical solution, two separate power supply circuits are set up: the first power supply circuit is the first power input module, and the second power supply circuit is the second power input module. If one power supply fails or is interrupted, the other power supply can immediately take over, ensuring uninterrupted power supply to the charging pile system. This significantly reduces the risk of system downtime due to power failure, thereby improving the overall reliability of the charging pile system's power supply. Furthermore, the dual-power supply method can meet the requirements for power quality and has strong adaptability and flexibility.

[0016] Preferably, the first power input module includes a first molded case circuit breaker, a first AC contactor, a first miniature circuit breaker, a first AC surge circuit breaker, a first miniature residual current circuit breaker, and a switching power supply; the second power input module includes a second molded case circuit breaker, a second AC contactor, a second miniature circuit breaker, and a second AC surge circuit breaker.

[0017] The input terminal of the first molded case circuit breaker is connected to the first AC power input circuit, the output terminal of the first molded case circuit breaker is connected to the input terminal of the first AC contactor, and the output terminal of the first AC contactor is connected to the first copper busbar.

[0018] The input terminal of the first miniature circuit breaker is connected to the three-phase line and the neutral line in the first AC power input circuit, and the output terminal of the first miniature circuit breaker is connected to the first AC surge device. The first AC surge device is also connected to the grounding line in the first AC power input circuit.

[0019] The input terminal of the first miniature residual current circuit breaker is connected to the single-phase AC power of the first AC power input circuit, and the output terminal of the first miniature residual current circuit breaker is connected to the switching power supply.

[0020] The input terminal of the second molded case circuit breaker is connected to the second AC power input circuit, the output terminal of the second molded case circuit breaker is connected to the input terminal of the second AC contactor, and the output terminal of the second AC contactor is connected to the first copper busbar;

[0021] The input terminal of the second miniature circuit breaker is connected to the three-phase line and the neutral line in the second AC power input circuit, and the output terminal of the second miniature circuit breaker is connected to the second AC surge protector. The second AC surge protector is also connected to the grounding line in the second AC power input circuit.

[0022] By adopting the above technical solution, the first power input module and the second power input module are specifically implemented by using electrical components, which can enhance the integration strength of the charging pile and reduce its size and weight.

[0023] Preferably, the second copper busbar has several copper busbar openings arranged in sequence, and a DC contactor is provided between two adjacent copper busbar openings;

[0024] When the indoor unit control module receives the working signal, it controls the on / off state of the DC contactor according to the working signal to determine the indoor unit output signal output by the second copper busbar.

[0025] By adopting the above technical solution, several copper busbar ports are arranged sequentially in the second copper busbar, and DC contactors are installed between adjacent copper busbar ports. This allows the indoor unit control module to control the on / off state of each DC contactor on the second copper busbar according to the received working signal, thereby enabling the second copper busbar to output the corresponding indoor unit output signal to meet the user's charging needs. The DC power output from the second copper busbar is provided by two power sources. Compared to a single power supply, this system can distribute the load between the two power sources, making full use of power resources and improving power supply efficiency. When one power source malfunctions or its power supply is insufficient, the other power source can share part of the load, operating at reduced power to maintain stable system operation.

[0026] Preferably, the system includes at least one outdoor unit control module, and each outdoor unit control module corresponds to two charging gun modules.

[0027] By adopting the above technical solution, the outdoor unit control module included in the outdoor unit system can be set according to actual needs, so that each outdoor unit control module is equipped with two charging gun modules. This enables the system to support multiple DC charging piles, rather than being limited to just one charging gun module, providing users with more charging locations and improving the utilization rate of the charging pile system.

[0028] Preferably, each outdoor unit control module is connected to the indoor unit control module for communication.

[0029] By adopting the above technical solution, it is easy to realize that each outdoor unit control module can communicate with the indoor unit control module independently, reducing unnecessary communication between different outdoor unit control modules and relieving the communication pressure on the outdoor unit control modules.

[0030] Preferably, the second copper busbar includes a whole-machine output port and a negative output port; the charging gun module includes at least one set of charging gun units, each charging gun unit including a charging gun, a fuse, a positive DC contactor, a negative DC contactor, a shunt and a DC meter;

[0031] The positive output port is connected to the positive input of the charging gun in sequence via a fuse and a positive direct contactor;

[0032] The negative output port is connected to the negative input of the charging gun in sequence through a shunt and a negative DC contactor;

[0033] A DC meter is connected in parallel across the two ends of the shunt.

[0034] By adopting the above technical solution, both the positive and negative output terminals are connected to the charging gun via DC contactors. After the positive and negative DC contactors are closed, the rectifier enables the charging gun to operate through the charging gun's cable, allowing charging of electric vehicles when needed. This method utilizes small-sized, lightweight, and low-power electrical components for power electronics, connecting the second copper busbar to the charging gun module in the charging pile, thereby enhancing the integration strength of the charging pile and reducing its size and weight.

[0035] Preferably, the power supply also supplies power to the outdoor unit system.

[0036] By adopting the above technical solution, there is no need to introduce an additional power supply module, reducing the need for new modules. This not only reduces the size of the charging pile system but also reduces costs.

[0037] Preferably, the outdoor unit system further includes LED lights, an outdoor unit touch screen, a card reader, a protocol converter, and a router. The outdoor unit control module is communicatively connected to the DC third-party standard, LED lights, touch screen, card reader, protocol converter, and router.

[0038] Preferably, the indoor unit system further includes an indoor unit touch screen, which is communicatively connected to the indoor unit control module.

[0039] The charging pile system provided by this utility model has the following advantages compared with the prior art:

[0040] 1. The charging pile system is divided into a split-type charging system using an indoor unit system and an outdoor unit system. The indoor unit system includes a power input module, a rectifier module, a first copper busbar, a second copper busbar, and an indoor unit control module. These components are connected sequentially. After three-phase AC power is input to the power input module, it is sent through the first copper busbar to the rectifier module. The rectifier module converts the AC power to DC power, outputting high-voltage DC power, which is then transmitted to the second copper busbar. The outdoor unit system includes a charging gun module and an outdoor unit control module. The outdoor unit control module is connected to the indoor unit control module, and the second copper busbar is connected to the charging gun module. The outdoor unit control module receives user requests, generates corresponding operating signals based on these requests, and sends these signals to the indoor unit control module. The indoor unit control module, through its connection with the second copper busbar, determines the appropriate indoor unit output signal from the second copper busbar. Finally, based on the connection between the second copper busbar and the charging gun module, it supplies power to the charging gun according to the indoor unit output signal. Compared to traditional integrated national standard DC charging pile systems, this application's embodiment adopts a split-type national standard DC charging pile system. Compared to traditional integrated charging pile systems, split-type charging pile systems are easier to relocate or have components replaced. Upgrades to split-type systems only require modifications to the rectifier module, offering greater upgrade potential. They can be flexibly configured and adjusted according to actual needs, increasing the charging pile's flexibility. After all, integrated charging piles typically make the entire device bulky, unsightly, and difficult to move after installation.

[0041] Furthermore, separating the high-voltage input and transformer sections, leaving only the communication control section at the user end, not only reduces the size and cost of the charging pile but also mitigates the risk of electric shock for users. Moreover, integrated charging pile systems often require complete repair or replacement if a problem occurs, increasing both repair difficulty and maintenance costs. In contrast, the split-type charging pile system disclosed in this application operates independently, allowing for separate repairs and replacements, thus reducing maintenance costs and facilitating future maintenance.

[0042] 2. Two separate power supply circuits are configured: the first power supply circuit is for the first power input module, and the second power supply circuit is for the second power input module. If one power supply fails or is interrupted, the other power supply can immediately take over, ensuring uninterrupted power supply to the charging pile system. This significantly reduces the risk of system downtime due to power failure, thereby improving the overall reliability of the charging pile system's power supply. Furthermore, the dual power supply configuration meets power quality requirements and offers strong adaptability and flexibility. Moreover, the implementation of the first and second power input modules using electrical components enhances the integration strength of the charging pile, reducing its size and weight.

[0043] 3. The second copper busbar has several copper outlets arranged sequentially, with DC contactors between adjacent outlets. The indoor unit control module controls the on / off state of each DC contactor on the second copper busbar based on received operating signals, thereby causing the second copper busbar to output the corresponding indoor unit output signal to meet the user's charging needs. The DC power output from the second copper busbar is provided by two power sources. Compared to a single power supply, this system can distribute the load between the two power sources, fully utilizing power resources and improving power supply efficiency. When one power source malfunctions or its power supply is insufficient, the other power source can share the load, operating at reduced power to maintain stable system operation. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the internal module connection of a charging pile system provided in an embodiment of this application.

[0045] Figure 2 This is a schematic diagram of the structural connection between the power input module and the rectifier module provided in the embodiments of this application.

[0046] Figure 3 This is a schematic diagram of the electrical component connections in the power input module provided in the embodiments of this application.

[0047] Figure 4 This is a schematic diagram of the outdoor unit system structure provided in the embodiments of this application.

[0048] Figure 5 This is a schematic diagram of the output port of the second copper busbar provided in an embodiment of this application.

[0049] Figure 6 This is a schematic diagram of the second copper busbar structure provided in an embodiment of this application.

[0050] Figure 7 This is a schematic diagram of the internal system structure provided in the embodiments of this application.

[0051] Figure label:

[0052] 1. Indoor unit system; 11. Power input module; 111. First power input module; 1111. First molded case circuit breaker; 1112. First AC contactor; 1113. First miniature circuit breaker; 1114. First AC surge protector; 1115. First miniature residual current circuit breaker; 1116. Switching power supply; 112. Second power input module; 1121. Second molded case circuit breaker; 1122. Second AC contactor; 1123. Second miniature circuit breaker; 1124. Second AC surge protector; 12. Rectifier module; 121. First rectifier module; 122. Second rectifier module; 1211. Rectifier 1. Unit; 13. First copper busbar; 14. Second copper busbar; 141. Positive output port; 142. Negative output port; 143. Communication output port; 15. Indoor unit control module; 16. Indoor unit touch screen; 2. Outdoor unit system; 21. Outdoor unit control module; 22. Charging gun module; 221. Charging gun unit; 2211. Charging gun; 2212. Fuse; 2213. Positive DC contactor; 2214. Negative DC contactor; 2215. Shunt; 2216. DC meter; 23. LED light; 24. Outdoor unit touch screen; 25. Card reader; 26. Protocol converter; 27. Router.

[0053] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0054] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0056] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0057] This application discloses a charging pile system. Figure 1 This is a schematic diagram of the internal module connection of a charging pile system provided in an embodiment of this application. Figure 1As shown, a charging pile system includes an indoor unit system 1 and an outdoor unit system 2. The indoor unit system 1 includes a power input module 11, a rectifier module 12, a first copper busbar 13, a second copper busbar 14, and an indoor unit control module 15. The outdoor unit system 2 includes an outdoor unit control module 21 and a charging gun module 22. The power input module 11 is connected to the rectifier module 12 via the first copper busbar 13, and is used to send the received three-phase AC power to the rectifier module 12 through the first copper busbar 13. The indoor unit control module 15 is communicatively connected to the outdoor unit control module 21, so that the outdoor unit control module 21 sends a working signal to the indoor unit control module 15 after receiving a user request. The output terminal of the rectifier module 12 is communicatively connected to the indoor unit control module 15 via the second copper busbar 14, so that the indoor unit control module 15 determines the indoor unit output signal output by the second copper busbar 14 based on the working signal. The second copper busbar 14 is also connected to the charging gun module 22 to supply power to the charging gun module 22 according to the indoor unit output signal.

[0058] Figure 2 This is a schematic diagram illustrating the structural connection between the power input module and the rectifier module provided in an embodiment of this application. Figure 2 As shown, the power input module 11 includes a first power input module 111 and a second power input module 112, and the rectifier module 12 includes a first rectifier module 121 and a second rectifier module 122. The first rectifier module 121 includes a plurality of rectifiers 1211, and the second rectifier module 122 includes a plurality of rectifiers 1211.

[0059] The input terminal of the first power input module 111 is connected to the first three-phase five-wire AC power input circuit to receive three-phase AC power. The output terminal of the first power input module 111 is connected to the first rectifier module 121 through the first copper busbar 13 to send the received three-phase AC power to each rectifier 1211 in the first rectifier module 121. The input terminal of the second power input module 112 is connected to the second three-phase five-wire AC power input circuit to receive three-phase AC power. Both the first and second AC power input circuits are independent 380V three-phase five-wire AC power inputs. The output terminal of the second power input module 112 is connected to the second rectifier module 122 through the first copper busbar 13 to send the received three-phase AC power to each rectifier 1211 in the second rectifier module 122. This is achieved by setting up two separate power supply circuits: the first power supply circuit is for the first power input module, and the second power supply circuit is for the second power input module. When one power source fails or is interrupted, the other power source can immediately take over, ensuring uninterrupted power supply to the charging pile system. This significantly reduces the risk of system downtime due to power failure, thereby improving the overall reliability of the charging pile system's power supply. Furthermore, the dual-power supply method can meet power quality requirements and offers strong adaptability and flexibility.

[0060] Figure 3 This is a schematic diagram of the electrical component connections in the power input module provided in an embodiment of this application. For example... Figure 3 As shown, the first power input module 111 includes a first molded case circuit breaker 1111, a first AC contactor 1112, a first miniature circuit breaker 1113, a first AC surge circuit breaker 1114, a first miniature residual current circuit breaker 1115, and a switching power supply 1116. The second power input module 112 includes a second molded case circuit breaker 1121, a second AC contactor 1122, a second miniature circuit breaker 1123, and a second AC surge circuit breaker 1124.

[0061] Specifically, the input terminal of the first molded case circuit breaker 1111 is connected to the three-phase line in the first AC power input circuit, and the output terminal of the first molded case circuit breaker 1111 is connected to the input terminal of the first AC contactor 1112. The output terminal of the first AC contactor 1112 is connected to the first copper busbar 13. The input terminal of the second molded case circuit breaker 1121 is connected to the three-phase line in the second AC power input circuit, and the output terminal of the second molded case circuit breaker 1121 is connected to the input terminal of the second AC contactor 1122. The output terminal of the second AC contactor 1122 is connected to the first copper busbar 13. In this way, by using simple electrical components, two separate three-phase AC power supplies are introduced into the first copper busbar 13, which facilitates the subsequent transmission of the obtained three-phase AC power to the subsequent rectifier module 12.

[0062] The input terminal of the first miniature circuit breaker 1113 is connected to the three-phase line and neutral line of the first AC power input circuit. The output terminal of the first miniature circuit breaker 1113 is connected to the first AC surge protector 1114, which is also connected to the grounding wire of the first AC power input circuit. The first miniature circuit breaker 1113 has five ports; four ports are connected to the three-phase line and neutral line of the first AC power input circuit via the miniature circuit breaker 1113, and the other port is directly connected to the grounding wire of the first AC power input circuit. This utilizes simple electrical components to protect the subsequent rectifier module 12 from transient surge impacts, reducing damage to the rectifier module 12.

[0063] The input terminal of the first miniature residual current circuit breaker 1115 is connected to the single-phase AC power of the first AC power input circuit, and the output terminal of the first miniature residual current circuit breaker 1115 is connected to the switching power supply 1116. The switching power supply 1116 has two ports: one port is connected to any one of the U, V, or W phases of the first AC power input circuit through the first miniature residual current circuit breaker 1115, and the other port is connected to the neutral line of the first AC power input circuit through the first miniature residual current circuit breaker 1115. This allows the switching power supply 1116 to receive single-phase AC power and, upon its own operation, outputs corresponding low-voltage DC power to supply power to other modules in the charging pile system that require low-voltage DC power.

[0064] The input terminal of the second miniature circuit breaker 1123 is connected to the three-phase line and neutral line of the second AC power input circuit, and the output terminal of the second miniature circuit breaker 1123 is connected to the second AC surge protector 1124, which is also connected to the grounding wire of the second AC power input circuit. The second miniature circuit breaker 1123 has five ports; four ports are connected to the three-phase line and neutral line of the first AC power input circuit via the miniature circuit breaker 1123, and the other port is directly connected to the grounding wire of the first AC power input circuit. This uses simple electrical components to protect the subsequent rectifier module 12 from transient surge impacts, reducing damage to the rectifier module 12. Thus, the first power input module 111 and the second power input module 112 are specifically implemented using electrical components, which enhances the integration strength of the charging pile and reduces its size and weight.

[0065] The first rectifier module 121 includes several rectifiers 1211, and the second rectifier module 122 also includes several rectifiers 1211. This embodiment uses an example where the first rectifier module 121 includes six rectifiers 1211 and the second rectifier module 122 includes six rectifiers 1211. Each rectifier 1211 is connected to the first copper busbar 13, allowing it to receive three-phase AC power. Through its own action, high-voltage DC power is obtained at the output of the rectifier 1211. Subsequently, the DC power obtained by the rectifier module 1211 is transmitted to the outdoor unit system 2 via the second copper busbar 14.

[0066] Figure 4 This is a schematic diagram of the outdoor unit system structure provided in an embodiment of this application. For example... Figure 4As shown in the embodiment of this application, the outdoor unit system 2 includes at least one outdoor unit control module 21, and each outdoor unit control module 21 corresponds to two charging gun modules 22. The outdoor unit control modules 21 included in the outdoor unit system 2 can be configured according to actual needs, such that each outdoor unit control module 21 is equipped with two charging gun modules 22. This allows the system to support multiple DC charging piles, rather than being limited to only one charging gun module 22, providing users with more charging locations and improving the utilization rate of the charging pile system.

[0067] Figure 5 This is a schematic diagram of the output port of the second copper busbar provided in an embodiment of this application. Figure 5 As shown, the second copper busbar 14 includes three output ports: a positive output port 141, a negative output port 142, and a communication output port 143. The positive output port 141 is used to output the positive terminal of the DC power obtained from the rectifier module 12, the negative output port 142 is used to output the negative terminal of the DC power obtained from the rectifier module 12, and the communication output port is used to communicate with the indoor unit control module 15.

[0068] In addition, such as Figure 4 As shown, the charging gun module 22 includes at least one set of charging gun units 221. Each charging gun unit 221 includes a charging gun 2211, a fuse 2212, a positive DC contactor 2213, a negative DC contactor 2214, a shunt 2215, and a DC meter 2216. The positive output port 141 is connected to the positive input of the charging gun 2211 via the fuse 2212 and the positive DC contactor 2213. The negative output port 142 is connected to the negative input of the charging gun 2211 via the shunt 2215 and the negative DC contactor 2214. A DC meter 2216 is connected in parallel across the two ends of the shunt 2215. This connection between the charging gun module 22 and the DC output of the rectifier module 12 is accomplished using electrical components, enabling the electrical electronics of the outdoor unit system 2 in the charging pile system. This strengthens the integration of the charging pile system, reduces the size of the outdoor unit system 2, and enhances the overall electrical performance of the system. In addition, the DC meter 2216 is also connected to the outdoor unit control module 21 via RS485 communication. This allows the communication between the outdoor unit control module 21 and the DC meter 2216 to have high anti-interference capability at a low cost.

[0069] In addition, the outdoor unit system 2 also includes LED lights 23, an outdoor unit touch screen 24, a card reader 25, a protocol converter 26, and a router 27. The outdoor unit control module 21 is communicatively connected to the DC meter 2216, LED lights 23, outdoor unit touch screen 24, card reader 25, protocol converter 26, and router 27. Specifically, the DC meter 2216 and the outdoor unit control module 21 can be connected via RS485 communication, allowing for high anti-interference capability at a relatively low cost. The outdoor unit control module 21 and the protocol converter 26 can be connected via CAN communication. The outdoor unit control module 21 and the LED lights 23, outdoor unit touch screen 24, card reader 25, and router 27 can be connected via RS232 serial communication. This integration of the LED light 23, outdoor unit touchscreen 24, card reader 25, and router 27 into the outdoor unit control module 21 makes it less susceptible to interference from other factors. Furthermore, the use of a low-cost RS232 serial port allows for good real-time bidirectional communication. When needed, users can operate the outdoor unit touchscreen 24 to receive corresponding operating signals from the outdoor unit control module 21.

[0070] In addition, each outdoor unit control module 21 is communicatively connected to the indoor unit control module 15. Specifically, CAN communication is used. This allows the outdoor unit control module 21 to quickly send the received operating signals to the indoor unit control module 15 after receiving a user request, thus enabling the indoor unit control module 15 to receive the required operating signals. This facilitates independent communication between each outdoor unit control module 21 and the indoor unit control module 15, reducing unnecessary communication between different outdoor unit control modules and relieving the communication burden on the outdoor unit control module 21.

[0071] Figure 6 This is a schematic diagram of the second copper busbar structure provided in an embodiment of this application. Figure 6 As shown, the second copper busbar 14 has several copper busbar ports arranged sequentially, and a DC contactor 141 is provided between two adjacent copper busbar ports. When the indoor unit control module 15 receives a working signal, it controls the opening and closing of the DC contactor 141 according to the working signal to determine the indoor unit output signal output by the second copper busbar 14. After receiving the working signal, the indoor unit control module 15 controls the opening and closing of each DC contactor 141 set in the second copper busbar 14 according to the working signal. The specific working signal is a number of bits composed of zeros and ones. Each DC contactor 141 has a one-to-one correspondence with a certain bit in the data. When the value of the bit is one, it indicates that the corresponding DC contactor 141 is in the closed state; otherwise, it indicates that the corresponding DC contactor 141 is in the open state.

[0072] The rectifier module 12 includes 12 rectifiers 1211, providing 12 positive DC outputs and 12 negative DC outputs. The positive DC outputs are divided into 6 groups: groups 1 and 2, 3 and 4, and so on, each connected to one of 6 copper busbar ports. These 6 ports are sequentially connected via DC contactors 141 numbered 1 to 5. Similarly, the negative DC outputs are divided into 6 groups: groups 1 and 2, 3 and 4, and so on, each connected to one of 6 copper busbar ports. These ports are sequentially connected via DC contactors 141 numbered 7 to 11. The second copper busbar 14 also includes DC contactors 141 numbered 5 and 12. These contactors 141 support one side of the second copper busbar 14, maintaining a consistent height on both sides. This allows the charging gun 2211 to receive power based on the on / off state of the DC contactors 141. Furthermore, the DC power output from the second copper busbar 14 is provided by two power supplies. Compared to a single power supply, this system can distribute the load between the two power supplies, making full use of power resources and improving power supply efficiency. When one power supply malfunctions or its power supply is insufficient, the other power supply can share part of the load, operate at reduced power, and maintain stable system operation.

[0073] Figure 7 This is a schematic diagram of the internal system structure provided in an embodiment of this application. For example... Figure 7 As shown, the indoor unit system 1 also includes an indoor unit touch screen 16, which is communicatively connected to the indoor unit control module 15. This allows the indoor unit touch screen 16 to conveniently determine and adjust the parameter settings in the rectifier module 12.

[0074] Preferably, the switching power supply 1116 also supplies power to the outdoor unit system 2, such as the outdoor unit control module 21 in the outdoor unit system 2. This eliminates the need for an additional power supply module, reducing the addition of new modules and thus reducing both the size and cost of the charging pile system. The switching power supply 1116 can also supply power to the indoor unit control module 15 in the indoor unit system 1. Again, this eliminates the need for an additional power supply module, reducing the addition of new modules and further reducing both the size and cost of the charging pile system.

[0075] The implementation principle is as follows:

[0076] Two AC power input circuits are provided, each a separate 380V three-phase five-wire AC power supply. The first AC power input circuit is connected to the input terminal of the first molded case circuit breaker 1111, and the output terminal of the first molded case circuit breaker 1111 is connected to the input terminal of the first AC contactor 1112. The output terminal of the first AC contactor 1112 is connected to the first copper busbar 13, and the three-phase power from the first copper busbar 13 is connected to the corresponding input ports of rectifiers 1211 numbered 1 to 6 in rectifier module 12 using wires. Similarly, the second AC power input circuit is connected to the input terminal of the second molded case circuit breaker 1121, and the output terminal of the second molded case circuit breaker 1121 is connected to the input terminal of the second AC contactor 1122. The output terminal of the second AC contactor 1122 is connected to the first copper busbar 13, and the three-phase power from the first copper busbar 13 is connected to the corresponding input ports of rectifiers 1211 numbered 7 to 12 in rectifier module 12 using wires. By setting up two separate power supply circuits, the other power source can immediately take over if one power source fails or is interrupted, ensuring uninterrupted power supply to the charging pile system. This significantly reduces the risk of system downtime due to power failure, thereby improving the overall reliability of the charging pile system's power supply. Furthermore, the dual-power supply method can meet power quality requirements and offers strong adaptability and flexibility.

[0077] Each rectifier 1211's output terminal is connected to a copper busbar port in the second copper busbar 14, and a DC contactor 141 is provided between adjacent copper busbar ports. The outdoor unit control module 21 and the indoor unit control module 15 are communicatively connected. This allows the outdoor unit control module 21 to quickly send the received operating signal to the indoor unit control module 15 after receiving a user request, thus enabling the indoor unit control module 15 to receive the required operating signal. When the indoor unit control module 15 receives the operating signal, it controls the on / off state of the DC contactors 141 according to the operating signal to determine the indoor unit output signal from the second copper busbar 14. After receiving the operating signal, the indoor unit control module 15 controls the on / off state of each DC contactor 141 in the second copper busbar 14 according to the operating signal. This allows the charging gun 2211 to receive the corresponding power based on the on / off state of the DC contactors 141. Furthermore, the DC power output from the second copper busbar 14 is provided by two power supplies. Compared to a single power supply, this system can distribute the load between the two power supplies, making full use of power resources and improving power supply efficiency. When one power supply malfunctions or its power supply is insufficient, the other power supply can share part of the load, operate at reduced power, and maintain stable system operation.

[0078] Moreover, compared with the traditional integrated national standard DC charging pile system, the embodiments of this application adopt a split national standard DC charging pile system. Compared with the traditional integrated charging pile system, the split charging pile system is easier to move or replace components. The split-type transformation and upgrade only requires improvement of the rectifier module, which has a larger upgrade space and can be flexibly configured and adjusted according to actual needs, increasing the flexibility of the charging pile.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A charging pile system, characterized in that, It includes an indoor unit system and an outdoor unit system. The indoor unit system includes a power input module, a rectifier module, a first copper busbar, a second copper busbar, and an indoor unit control module. The outdoor unit system includes an outdoor unit control module and a charging gun module. The power input module is connected to the rectifier module through the first copper busbar, and is used to send the received three-phase AC power to the rectifier module through the first copper busbar; The indoor unit control module is communicatively connected to the outdoor unit control module, so that the outdoor unit control module can send a working signal to the indoor unit control module after receiving the user's request. The output terminal of the rectifier module is communicatively connected to the indoor unit control module through the second copper busbar, so that the indoor unit control module determines the indoor unit output signal output by the second copper busbar according to the working signal; The second copper busbar is also connected to the charging gun module to supply power to the charging gun module according to the output signal of the indoor unit.

2. The system according to claim 1, characterized in that, The power input module includes a first power input module and a second power input module, and the rectifier module includes a first rectifier module and a second rectifier module. The first rectifier module includes a plurality of rectifiers, and the second rectifier module includes a plurality of rectifiers. The first power input module is connected to the first rectifier module through the first copper busbar, and is used to send the received three-phase AC power to each rectifier in the first rectifier module through the first copper busbar. The second power input module is connected to the second rectifier module through the first copper busbar, and is used to send the received three-phase AC power through the first copper busbar to each rectifier in the second rectifier module.

3. The system according to claim 2, characterized in that, The first power input module includes a first molded case circuit breaker, a first AC contactor, a first miniature circuit breaker, a first AC surge circuit breaker, a first miniature residual current circuit breaker, and a switching power supply; the second power input module includes a second molded case circuit breaker, a second AC contactor, a second miniature circuit breaker, and a second AC surge circuit breaker. The input terminal of the first molded case circuit breaker is connected to the first AC power input circuit, the output terminal of the first molded case circuit breaker is connected to the input terminal of the first AC contactor, and the output terminal of the first AC contactor is connected to the first copper busbar. The input terminal of the first miniature circuit breaker is connected to the three-phase line and the neutral line in the first AC power input circuit, and the output terminal of the first miniature circuit breaker is connected to the first AC surge device. The first AC surge device is also connected to the grounding line in the first AC power input circuit. The input terminal of the first miniature residual current circuit breaker is connected to the single-phase AC power of the first AC power input circuit, and the output terminal of the first miniature residual current circuit breaker is connected to the switching power supply. The input terminal of the second molded case circuit breaker is connected to the second AC power input circuit, the output terminal of the second molded case circuit breaker is connected to the input terminal of the second AC contactor, and the output terminal of the second AC contactor is connected to the first copper busbar; The input terminal of the second miniature circuit breaker is connected to the three-phase line and the neutral line in the second AC power input circuit, and the output terminal of the second miniature circuit breaker is connected to the second AC surge protector. The second AC surge protector is also connected to the grounding line in the second AC power input circuit.

4. The system according to claim 2, characterized in that, The second copper busbar has several copper busbar ports arranged in sequence, and a DC contactor is provided between two adjacent copper busbar ports; When the indoor unit control module receives the working signal, it controls the on / off state of the DC contactor according to the working signal to determine the indoor unit output signal output by the second copper busbar.

5. The system according to claim 1, characterized in that, The system includes at least one outdoor unit control module, and each outdoor unit control module corresponds to two charging gun modules.

6. The system according to claim 5, characterized in that, Each outdoor unit control module is communicatively connected to the indoor unit control module.

7. The system according to claim 1, characterized in that, The second copper busbar includes a positive output port and a negative output port; the charging gun module includes at least one set of charging gun units, each charging gun unit including a charging gun, a fuse, a positive DC contactor, a negative DC contactor, a shunt, and a DC meter; The positive output port is connected to the positive input of the charging gun in sequence via a fuse and a positive DC contactor; The negative output port is connected to the negative input of the charging gun via a shunt and a negative DC contactor in sequence. A DC meter is connected in parallel across the two ends of the shunt.

8. The system according to claim 3, characterized in that, The switching power supply also supplies power to the outdoor unit system.

9. The system according to claim 7, characterized in that, The outdoor unit system also includes LED lights, an outdoor unit touch screen, a card reader, a protocol converter, and a router. The outdoor unit control module is communicatively connected to the DC meter, LED lights, outdoor unit touch screen, card reader, protocol converter, and router.

10. The system according to claim 9, characterized in that, The indoor unit system also includes an indoor unit touch screen, which is communicatively connected to the indoor unit control module.

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