Integrated OCPP communication automobile charging device
By integrating the OCPP protocol and components, and combining CAN communication and Ethernet connectivity, the problems of high cost and instability of existing charging piles have been solved, achieving efficient, stable, and intelligent charging pile management and equipment safety.
Patent Information
- Application Number
- CN202520543353.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing solutions from charging pile companies use separate OCPP protocol boards, which increases costs and introduces system instability issues.
Design an integrated OCPP communication vehicle charging device that integrates key components such as the charging pile main control board, AC/AD module group, and high-voltage contactor. It integrates the OCPP protocol through CAN communication technology and Ethernet connection, and is equipped with a temperature sensor and cooling fan to achieve real-time monitoring and efficient heat dissipation.
It improves the operational stability and reliability of charging piles, reduces system costs, enables intelligent management, reduces the risk of failure caused by cable connection problems, ensures that the equipment works in a suitable temperature environment, and extends the equipment life.
Smart Images
Figure CN223962026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to power electronics technology, and in particular to an integrated OCPP communication car charging device. Background Technology
[0002] OCPP (Open Charge Point Protocol) was originally developed by the E-Laad Foundation (now ElaadNL) in 2009 as an open protocol aimed at creating an open communication standard. Managed by the Dutch OCA (Open Charge Alliance), it aims to promote interoperability between charging devices from different manufacturers. Using OCPP, charging stations can easily exchange data with multiple different service providers, including but not limited to charging status updates and remote control commands. This feature not only greatly simplifies the management and expansion of charging networks but also provides users with a more convenient service experience. The first version of the protocol was OCPP 1.5, and by 2017, OCPP had been implemented in over 40,000 charging facilities in 49 countries, thus effectively becoming the industry standard for charging facility network communication. Currently, the OCA has continued to release OCPP 1.6 and OCPP 2.0 standards following OCPP 1.5. OCPP1.5 communicates with the central system via SOAP protocol based on HTTP to operate the charging terminal. It supports: local and remote initiation of transactions, including billing metering, metering values independent of transactions, authorized charging sessions, cached authorization IDs and local authorization list management for faster and offline authorization, mediators (non-transactional), status reporting including periodic heartbeats, reservations (direct), firmware management, providing a charging terminal, reporting diagnostic information, setting charging point availability (operation / non-operation), remote connector unlocking, and remote reset.
[0003] OCPP 1.6 supports JSON format data based on the WebSockets protocol to reduce data traffic (JSON, JavaScript Object Notation, is a lightweight data exchange format) and allows operation on networks that do not support charging point packet routing (such as the public internet). It supports: all the features of OCPP 1.5, load balancing, central smart charging and local smart charging, allowing charging points to resend their own information (based on current charging point information), and extended configuration options for offline operation and authorization. With continuous technological advancements, OCPP is also constantly evolving. The latest OCPP 2.0 version introduces many new features, such as support for more flexible billing models, enhanced security mechanisms, and more efficient communication. These improvements make OCPP one of the important forces driving the development of global electric vehicle charging infrastructure.
[0004] The OCPP protocol is now an indispensable part of European standard charging piles. Many existing domestic charging pile companies use a separate OCPP protocol board, loaded onto the main control board, to implement OCPP protocol support functions. This approach not only increases costs but also introduces many instabilities into the system. Utility Model Content
[0005] To improve system stability and reduce system cost, this invention proposes an integrated OCPP communication vehicle charging device, including a remote server, a housing, a charging pile main control board and its related components, an AC / AD module group and its related components, and a high-voltage contactor and its related components. The charging pile main control board integrates the OCPP protocol. A placement rack is provided outside the housing, and the placement rack holds the charging gun. The charging pile main control board is located inside the housing. The charging pile main control board is connected to the AC / AD module group and the high-voltage contactor lines respectively. The AC / AD module group is connected to the high-voltage contactor lines, and the high-voltage contactor is connected to the charging gun lines. The charging pile main control board is connected to the remote server.
[0006] Preferably, the main control board of the charging pile is connected to the AC / AD module group and the high-voltage contactor line through CAN communication technology.
[0007] Preferably, the main control board of the charging pile is connected to a remote server via Ethernet.
[0008] Preferably, the placement rack is equipped with a weight sensor, which is connected to a remote server and is used to detect whether the charging gun is placed on the placement rack.
[0009] Preferably, a temperature sensor is installed inside the box, a cooling fan is fixedly installed on the inner wall of the top of the box, and several heat dissipation holes are provided at the bottom of the box. The temperature sensor and the cooling fan are both connected to a remote server for monitoring the temperature inside the box, and the cooling fan is used to cool the charging pile main control board, AC / AD module group, and high-voltage contactor line.
[0010] Preferably, the main control board of the charging pile, the AC / AD module group, and the high-voltage contactor line are all located below the cooling fan and above the heat dissipation hole, with the cooling fan facing the heat dissipation hole.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. The main control board of the charging pile of this utility model is connected to the AC / AD module group and the high-voltage contactor through CAN communication technology. CAN communication technology has the characteristics of reliable data transmission and strong anti-interference ability, which can ensure stable data interaction and control command transmission between the internal components of the charging pile, and improve the stability and reliability of the charging pile operation.
[0013] 2. The main control board of this utility model for charging piles connects to a remote server via Ethernet. Ethernet is characterized by high speed and stability, enabling the charging pile to quickly and stably interact with the remote server. This facilitates remote real-time monitoring, fault diagnosis, parameter setting, and other operations on the charging pile, thereby achieving intelligent management of the charging pile, improving management efficiency, and reducing operating costs.
[0014] 3. This utility model features a weight sensor on the placement rack connected to a remote server, enabling real-time monitoring of whether the charging gun is placed on the rack. This function helps to promptly understand the charging gun's usage status and alerts staff or users when the charging gun is not placed correctly, preventing safety hazards or equipment damage caused by improper placement.
[0015] 4. This utility model incorporates a temperature sensor and a cooling fan within the casing. The bottom of the casing has ventilation holes, and both the temperature sensor and the cooling fan are connected to a remote server. The temperature sensor monitors the internal temperature of the casing in real time. When the temperature becomes too high, the remote server controls the cooling fan to activate, cooling the charging pile's main control board, AC / AD module group, and high-voltage contactor lines. This temperature monitoring and heat dissipation mechanism effectively prevents performance degradation or malfunctions caused by overheating, extends the equipment's lifespan, and ensures the safe and stable operation of the charging pile.
[0016] 5. The main control board, AC / AD module group, and high-voltage contactor line of this utility model charging pile are all located below the cooling fan and above the heat dissipation hole, with the cooling fan facing the heat dissipation hole. This layout allows the airflow generated by the cooling fan to more directly and efficiently remove the heat generated by the equipment and discharge it through the heat dissipation hole into the box, further optimizing the heat dissipation effect, improving the heat dissipation efficiency of the equipment, and ensuring that the equipment works in a suitable temperature environment.
[0017] 6. The main control board of this utility model charging pile integrates the OCPP protocol, and the box integrates key components such as the main control board of the charging pile, AC / AD module group, and high voltage contactor. This highly integrated design reduces the size of the equipment and external connection cables, making the charging pile structure more compact, easier to install and maintain, and also reducing the risk of failure caused by cable connection problems. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of an integrated OCPP communication car charging device according to this utility model.
[0019] In the diagram: 1. Charging pile main control board; 2. Remote server; 3. AC / AD module group; 4. High voltage contactor; 5. Box; 6. Placement rack; 7. Charging gun; 8. Weight sensor; 9. Temperature sensor; 10. Cooling fan; 11. Heat dissipation hole. Detailed Implementation
[0020] An integrated OCPP communication vehicle charging device includes a remote server 2, a charging pile main control board 1 and its related components, an AC / AD module group 3 and its related components, and a high-voltage contactor 4 and its related components. The charging pile main control board 1 integrates the OCPP protocol. The device is characterized by including a housing 5, with a placement rack 6 outside the housing 5 holding a charging gun 7. The charging pile main control board 1 is located inside the housing 5. The charging pile main control board 1 is connected to the AC / AD module group 3 and the high-voltage contactor 4 via wiring. The wiring connection between the charging pile main control board 1 and the AC / AD module group 3 and the high-voltage contactor 4 is completed through CAN communication technology.
[0021] AC / AD module group 3 is connected to high-voltage contactor 4, high-voltage contactor 4 is connected to charging gun 7, and the charging pile main control board is connected to remote server 2 via Ethernet 1.
[0022] A weight sensor 8 is installed on the placement rack 6. The weight sensor 8 is connected to the remote server 2 and is used to detect whether the charging gun 7 is placed on the placement rack 6.
[0023] A temperature sensor 9 is installed inside the housing 5. A cooling fan 10 is fixedly installed on the inner wall of the top of the housing 5. Several heat dissipation holes 11 are provided at the bottom of the housing 5. The temperature sensor 9 and the cooling fan 10 are both connected to a remote server 2 to monitor the temperature inside the housing 5. The cooling fan 10 is used to cool the charging pile main control board 1, AC / AD module group 3, and high-voltage contactor 4 wires. The charging pile main control board 1, AC / AD module group 3, and high-voltage contactor 4 wires are all located below the cooling fan 10 and above the heat dissipation holes 11, with the cooling fan 10 facing the heat dissipation holes 11.
Claims
1. An integrated OCPP communication automobile charging device, comprising a remote server (2), a charging pile master control board (1) and its related components, an AC / AD module group (3) and its related components, a high-voltage contactor (4) and its related components, and the charging pile master control board (1) is integrated with OCPP protocol, characterized in that, Including the box (5), the box (5) outside is provided with a rack (6), the rack (6) is placed with a charging gun (7), the box (5) is provided with a charging pile master control board (1), the charging pile master control board (1) is connected with AC / AD module group (3), high voltage contactor (4) line respectively, AC / AD module group (3) is connected with high voltage contactor (4) line, high voltage contactor (4) is connected with charging gun (7) line, the charging pile master control board (1) is accessed remote server (2).
2. The integrated OCPP communication automobile charging device according to claim 1, wherein, The charging pile master control board (1) is connected with AC / AD module group (3), high voltage contactor (4) line is completed through CAN communication technology.
3. The integrated OCPP communication automobile charging device according to claim 1, wherein, The charging pile master control board (1) is accessed remote server (2) through Ethernet.
4. The integrated OCPP communication automobile charging device according to claim 1, wherein, The rack (6) is provided with a weight sensor (8), the weight sensor (8) is accessed remote server (2), the weight sensor (8) is used to detect whether the charging gun (7) is placed on the rack (6).
5. The integrated OCPP communication automobile charging device according to claim 1, wherein, The box (5) is provided with a temperature sensor (9), the top inner wall of the box (5) is fixedly installed with a cooling fan (10), the bottom of the box (5) is provided with a plurality of cooling holes (11), the temperature sensor (9), cooling fan (10) are accessed remote server (2), the temperature sensor (9) is used to monitor the temperature in the box (5), the cooling fan (10) is used to cool the charging pile master control board (1), AC / AD module group (3), high voltage contactor (4) line.
6. The integrated OCPP communication automobile charging device according to claim 5, wherein, The charging pile master control board (1), AC / AD module group (3), high voltage contactor (4) line are located below the cooling fan (10) and above the cooling hole (11), and the cooling fan (10) faces the cooling hole (11).