A charging conversion device

Abstract

The application relates to a charging conversion device, and relates to the field of charging technology, which comprises a junction box, a plurality of first connecting pieces and a plurality of second connecting pieces, one side of the plurality of first connecting pieces and the plurality of second connecting pieces is connected with the junction box, the other side of the plurality of first connecting pieces is used for being connected with objects to be charged with different standard charging systems, and the other side of the plurality of second connecting pieces is used for being connected with charging equipment with different standard charging systems. The application realizes seamless conversion between different standard charging interfaces by providing the combination design of the plurality of first and second connecting pieces and the junction box, improves the universality of charging facilities, reduces the construction and operation cost of the charging facilities, simplifies the use process of users, enables the charging equipment and the objects to be charged to realize free switching of different charging standards, and solves the compatibility problem caused by different charging standards used in different regions and by different manufacturers.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of charging technology, in particular to a charging conversion device. BACKGROUND

[0002] With the rapid development of global new energy vehicle industry, different charging interface standards have been introduced by countries and regions. Main charging interface standards include CCS2 in Europe, CCS1 in the United States, GBT in China, and CHAdeMO in Japan, etc. There are significant differences in physical interface, charging voltage, current, etc. of these charging standards, and the communication protocols of each standard are independent of each other. Therefore, when new energy vehicles travel across regions or countries, they often face the problem of incompatible charging interfaces, resulting in poor experience for vehicle owners when using charging facilities in different regions.

[0003] Especially in regions where the automobile industry is not well developed, such as Latin America and some other regions, the charging interface standards lack uniformity, and the coexistence of different charging protocols and interfaces makes the construction of charging infrastructure face more challenges. In these regions, common charging interface standards such as CCS1, CCS2, GBT, and CHAdeMO coexist, and there is a lack of unified charging interface, which brings great difficulty to the cross-regional charging of new energy vehicles.

[0004] In order to solve the problem of interconversion between different charging interfaces, some interface conversion adapters have appeared on the market. Most of the existing adapters are single-direction converters, such as CCS2 to CHAdeMO adapters, which connect the input end of the CCS2 interface to the DC charging pile and the output end to the electric vehicle of the CHAdeMO interface. Although this type of adapter solves the problem of interconversion of some charging interfaces, it is single-directional and cannot achieve comprehensive interconversion between different interface standards. For example, it cannot convert the CCS2 interface to GBT, CCS1, or Tesla and other interfaces. In addition, the existing adapters are usually not compatible with multiple different types of charging protocols and standards, making the cross-regional and cross-country charging service experience still face great obstacles.

[0005] Therefore, there is an urgent need for a solution that can support the interconversion between multiple interfaces to achieve the free conversion of different standard AC and DC charging interfaces between vehicles and charging piles. SUMMARY

[0006] In order to achieve the free conversion of different standard AC and DC charging interfaces between vehicles and charging piles, the present application provides a charging conversion device.

[0007] The charging conversion device provided by the present application adopts the following technical solution:

[0008] The utility model provides a charging conversion device, including a distribution box, a plurality of first connecting piece, a plurality of second connecting piece, one side of the plurality of first connecting piece and the plurality of second connecting piece is connected with the distribution box, the other side of the plurality of first connecting piece is used to be connected with the object to be charged with different standard charging system, the other side of the plurality of the second connecting piece is used to be connected with the charging equipment with different standard charging system.

[0009] By adopting the above technical scheme, the charging conversion device realizes seamless conversion between different standard charging interfaces through the combination design of the plurality of first connecting pieces and the second connecting pieces and the distribution box, improves the universality of the charging facility, reduces the construction and operation cost of the charging facility, and simplifies the use process of the user.

[0010] In a specific implementation scheme, the plurality of first connecting pieces include a plurality of first female sockets and a plurality of first male connectors, the plurality of first female sockets are arranged on the distribution box, and the plurality of first male connectors are arranged correspondingly to the plurality of first female sockets.

[0011] By adopting the above technical scheme, the combination of the plurality of first male connectors and the plurality of first female sockets can support different types of charging interfaces at the same time, so that the device can be compatible with multiple standards, and the charging interface of different objects to be charged can be quickly connected to the first female sockets of the distribution box by selecting appropriate first male connectors, thereby enhancing the adaptability and universality.

[0012] In a specific implementation scheme, the plurality of second connecting pieces include a plurality of second female sockets and a plurality of second male connectors, the plurality of second female sockets are arranged on the distribution box, and one end of the plurality of second male connectors is arranged correspondingly to the plurality of second female sockets.

[0013] By adopting the above technical scheme, the combination of the plurality of second male connectors and the plurality of second female sockets enables the user to select appropriate connector interfaces according to different charging equipment, and different types of charging equipment can be connected to the second female sockets of the distribution box through corresponding second male connectors, thereby making the system have higher adaptability and flexibility.

[0014] In one specific implementation, the distribution box is provided with an electrical signal interface for connecting with the electrical wiring and signal wiring related to the charging circuit.

[0015] By adopting the above technical solution, the electrical signal interface is integrated in the distribution box, which can be conveniently connected with external equipment. Through the interface, external measuring equipment can directly obtain the voltage signal, PWM signal and other important data in the charging circuit, simplifying the system integration and testing process, improving the engineering implementation efficiency, and improving the efficiency and reliability of the charging process.

[0016] In one specific implementation, a protocol conversion module is further included, and a signal line connected with the electrical signal interface passes out of the distribution box and is connected with the protocol conversion module.

[0017] By adopting the above technical solution, the protocol conversion module can realize seamless docking and data flow between different communication protocols in the charging circuit through the connection of the signal line and the electrical signal interface, not only enhancing the compatibility, flexibility and scalability of the system, but also simplifying the system integration process and improving the efficiency and stability of signal transmission.

[0018] In one specific implementation, the distribution box is provided with a temperature signal interface for connecting with the temperature signal wiring of the object to be charged and the charging equipment.

[0019] By adopting the above technical solution, the temperature sensor signals of the object to be charged and the charging equipment can be centrally connected through the temperature signal interface, which is convenient for unified management. Not only is it convenient for external temperature monitoring devices to perform real-time monitoring, but it also plays an important role in ensuring the safety and improving the efficiency of the charging process.

[0020] In one specific implementation, the distribution box is provided with a temperature monitoring module and a display panel, and the temperature monitoring module is electrically connected with the display panel. The temperature monitoring module is used to monitor the temperature of the object to be charged and the charging equipment and feed back to the display panel for display.

[0021] By adopting the above technical solution, the distribution box design realizes temperature monitoring of the object to be charged and the charging equipment by combining the temperature monitoring module and the display panel, and feeds back the temperature data to the display panel in real time, which is convenient for users to view and manage the temperature condition, and enhances the safety, reliability and ease of use of the system.

[0022] In one specific implementation, the distribution box is provided with an insulation fault injection module for simulating different working condition fault injections by selecting insulation fault resistance values of different gears.

[0023] By adopting the technical scheme, the insulation fault injection can select insulation fault resistance values of different gears to simulate various possible fault conditions, so that the device can take necessary protection measures under different fault conditions, and the safety and reliability of the system are effectively improved.

[0024] In one specific implementation, the distribution box is provided with an overload and short-circuit protection module for monitoring whether the charging circuit is overloaded and short-circuited, and for current limiting the charging circuit.

[0025] By adopting the technical scheme, the overload and short-circuit protection module can monitor the current in the charging circuit in real time, and take current limiting or power-off measures in time once an overload or short-circuit problem is found, thereby effectively preventing safety accidents of electrical equipment.

[0026] In summary, the beneficial technical effects of the present application are: the present application provides a combination design of multiple first and second connecting pieces and a distribution box, realizes seamless conversion between different standard charging interfaces, improves the universality of charging facilities, reduces the construction and operation cost of charging facilities, and simplifies the use process of users; by designing multiple first and second connecting pieces, the charging equipment and the object to be charged can be freely switched between different charging standards, solving the compatibility problem caused by different charging standards used in different regions and different manufacturers, and the interface conversion between the charging pile and the vehicle can be easily completed, thereby simplifying the charging process, especially suitable for cross-regional and cross-brand vehicle charging, and improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the charging conversion device of the embodiment of the present application.

[0028] Figure 2 is a wiring principle diagram for showing the distribution box.

[0029] Figure 3 is a combination relationship schematic diagram of the distribution box and vehicles and charging piles of different types of charging interfaces.

[0030] Mark explanation: 1, distribution box; 2, first connecting piece; 21, first male connector; 22, first female seat; 3, second connecting piece; 31, second male connector; 32, second female seat; 4, vehicle; 5, charging pile. DETAILED DESCRIPTION

[0031] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0032] The embodiment of the present application discloses a charging conversion device, which is applied to charging of a vehicle 4, and aims to solve the problem of incompatible standards between the existing vehicle 4 and a charging pile 5, by providing a flexible, universal and easy-to-operate charging conversion scheme to support quick docking of devices and objects with different charging standards. The core of the device is the combination design of a junction box 1 and a plurality of connecting pieces, which allows users to select appropriate connecting pieces according to the interface standards of different charging devices and objects to be charged, realizes seamless conversion of the interface standards, and thus simplifies the charging process and improves the adaptability of the charging facility.

[0033] Reference Figures 1-3 The charging conversion device comprises the junction box 1, a plurality of first connecting pieces 2 and a plurality of second connecting pieces 3. The junction box 1 is the core part of the system and has a plurality of ports for connecting different types of connecting pieces. Specifically, the junction box 1 is connected with the plurality of first connecting pieces 2 and the plurality of second connecting pieces 3 on one side, one end of each connecting piece is connected with the junction box 1, and the other end is connected with a charging device or an object to be charged respectively.

[0034] In the embodiment, the first connecting piece 2 is used for connecting with a charging interface of an object to be charged. In the embodiment, the object to be charged includes but is not limited to the vehicle 4. The first connecting piece 2 is connected with a charging socket of the vehicle 4 with different types of charging interfaces. Each first connecting piece 2 represents a specific charging standard, for example, GBT, CCS1, CCS2 and CHAdeMO. Users can select the corresponding first connecting piece 2 according to the charging interface standard of the vehicle 4.

[0035] The second connecting piece 3 is used for docking with a charging interface of a charging device. In the embodiment, the charging device can be but is not limited to the charging pile 5. The second connecting piece 3 is connected with a charging gun of the charging pile 5 with different types of charging interfaces, allowing users to select the corresponding second connecting piece 3 according to the charging interface standard of the charging pile 5. Each second connecting piece 3 represents a specific charging standard, for example, GBT, CCS1, CCS2 and CHAdeMO. The plurality of second connecting pieces 3 provide different types of connector interfaces to ensure that the device can be compatible with a plurality of charging piles 5. Users only need to select a connector matched with the interface type of their own device from the plurality of second connecting pieces 3. After the connection is completed, the charging process can start.

[0036] By designing the plurality of first connecting pieces 2 and the plurality of second connecting pieces 3, the charging device and the object to be charged can realize free switching of different charging standards, solving the compatibility problem caused by different charging standards (such as GBT, CCS and CHAdeMO) used in different regions and by different manufacturers. The interface conversion between the charging pile 5 and the vehicle 4 can be conveniently completed.

[0037] In the embodiment, the first connecting member 2 comprises a combination of a plurality of first female sockets 22 and a plurality of first male connectors 21, and the plurality of first female sockets 22 and the plurality of first male connectors 21 are correspondingly arranged. In the embodiment, the first female socket 22 and the first male connector 21 are respectively provided in three groups to form three sets of combination design. The plurality of first female sockets 22 and the plurality of first male connectors 21 respectively represent a specific charging standard. The user can select the corresponding first male connector 21 according to the charging interface standard of the vehicle 4, and then select the corresponding first female socket 22 for connection according to the selected first male connector 21.

[0038] The plurality of first female sockets 22 are fixedly arranged on the distribution box 1. One end of the first male connector 21 is connected to the corresponding first female socket 22, and the other end is connected to the charging socket of the vehicle 4. In the embodiment, the first male connector 21 is connected to the first female socket 22 and the charging socket of the vehicle 4 by plug-in connection.

[0039] The plurality of second connecting members 3 comprise a plurality of second female sockets 32 and a plurality of second male connectors 31, and the plurality of second female sockets 32 and the plurality of second male connectors 31 are correspondingly arranged. In the embodiment, the second female socket 32 and the second male connector 31 are respectively provided in three groups to form three sets of combination design. The plurality of second female sockets 32 and the plurality of second male connectors 31 respectively represent a specific charging standard. The user can select the corresponding second male connector 31 according to the charging interface standard of the charging pile 5, and then select the corresponding second female socket 32 for connection according to the selected second male connector 31.

[0040] The plurality of second female sockets 32 are fixedly arranged on the distribution box 1. One end of the second male connector 31 is connected to the corresponding second female socket 32, and the other end is connected to the charging gun of the charging pile 5. In the embodiment, the second male connector 31 is connected to the second female socket 32 and the charging gun of the charging pile 5 by plug-in connection.

[0041] Referring to Figure 2 In the embodiment, the internal circuit of the distribution box 1 is divided into three parts: an alternating current loop and a protection ground: L1, L2, L3, N, PE; a direct current loop: DC+, DC-; a charging communication and signal loop; and each of the above loops is grounded.

[0042] Referring to Figure 2 , Figure 2 The connectors 1-6 in the embodiment are all standard industrial connectors, wherein Figure 2 The connectors 1-3 in the embodiment are a group of interfaces, which are connected to the charging gun on the side of the charging pile 5. In the embodiment, the connectors 1-3 are the plurality of second male connectors 31 in the application. Figure 2 The connectors 4-6 in the embodiment are another group of interfaces, which are connected to the charging socket on the side of the vehicle 4. In the embodiment, the connectors 4-6 are the plurality of first male connectors 21 in the application.

[0043] In order to realize quick connection of the vehicle 4 and the charging pile 5, the charging pile 5 charging gun matched with the junction box 1 and the vehicle 4 charging socket are connected by the second male connector 31 (connector 1-3) and the first male connector 21 (connector 4-6) to form a complete power transmission loop and a signal transmission loop;

[0044] Different charging interface types, the junction box 1 has different types of matched guns and seats, which are all connected quickly with the first female seat 22 and the second female seat 32 of the junction box 1 through the first male connector 21 (connector 4-6) and the second male connector 31 (connector 1-3), so that the junction box 1 can flexibly adapt to the connection of vehicles 4 and charging piles 5 of different charging interface types.

[0045] The combination relationship between the junction box 1 and the vehicle 4 and the charging pile 5 of different types of charging interfaces is shown in Figure 3 As can be seen, through the design of the combination of multiple first male connectors 21 and multiple first female seats 22 and the combination of multiple second male connectors 31 and multiple second female seats 32, different types of charging interfaces can be supported at the same time, so that the device can be compatible with multiple standards, and the charging interface of different vehicles 4 or charging piles 5 can be connected to the first female seat 22 or the second female seat 32 of the junction box 1 by selecting the appropriate first male connector 21 or second male connector 31, thereby enhancing the adaptability and versatility; and the modular design is adopted, each first male connector 21 or second male connector 31 can be replaced or replaced individually as needed, thereby improving the flexibility and scalability of the system, when a new charging interface standard appears, only the corresponding connector needs to be replaced without replacing the entire junction box 1, thereby simplifying the later maintenance and updating work.

[0046] In order to improve the intelligence and operability of the system, the junction box 1 also integrates an electrical signal interface for connecting with the electrical wiring and signal wiring in the charging circuit; the electrical signal interface enables external detection devices (such as control systems and detection instruments) to be easily connected, so that external detection devices can measure (voltage signals and PWM signals) and collect data (CAN signals and CP / PLC signals), monitor key data such as voltage signals and PWM signals in the charging circuit, and ensure the stability and safety of the system.

[0047] The charging conversion device further comprises a protocol conversion module connected with the electrical signal interface of the junction box 1 through signal lines, which can realize communication and energy transmission between the vehicle 4 and the charging pile 5 in the charging loop, so that seamless docking and data flow between different communication protocols can be realized, not only enhancing the compatibility, flexibility and scalability of the system, but also simplifying the system integration process and improving the efficiency and stability of signal transmission; and with the addition of the protocol conversion module, communication between the charging loop and external equipment, control system or data platform becomes more convenient, further improving the intelligent management capability of the equipment and the reliability of the overall system.

[0048] In order to ensure the safety of the charging process, a temperature signal interface is designed in the junction box 1 for connection with the temperature signal lines of the vehicle 4 and the charging pile 5; through this interface, temperature data can be transmitted to external monitoring equipment or control system in real time, realizing comprehensive monitoring of the temperature of the charging process.

[0049] Referring to Figure 2 In this embodiment, the banana socket hole at the top of the figure is the electrical signal interface in the application, which is connected with the electrical and signal lines in the charging loop, facilitating measurement and data acquisition by external detection devices, while the banana socket hole at the bottom is the temperature signal interface in the application, which is connected with the temperature signal of the vehicle 4 and the charging pile 5 connected externally, facilitating temperature monitoring by external detection devices.

[0050] Further, the junction box 1 also integrates a temperature monitoring module and a display panel; the temperature monitoring module is used to monitor the temperature of the object to be charged and the charging equipment in real time, and the monitoring results are fed back to the display panel through electrical connection, so that users can conveniently check the temperature status during the charging process through the display panel; through this design, the system can timely issue a warning when overheating occurs, preventing safety problems caused by high temperature, enhancing the safety and reliability of the charging equipment.

[0051] In order to improve the safety during the charging process, the junction box 1 is also provided with an overload and short circuit protection module, which is used to monitor the current in the charging loop in real time; when the monitored current exceeds the safe range or a short circuit occurs, the overload and short circuit protection module will automatically cut off the power supply to prevent damage to the equipment caused by overload or short circuit, which not only can effectively prevent fire and other safety accidents, but also can ensure the stability of the charging process.

[0052] The charging conversion device further comprises an insulation fault injection module, which can simulate different electrical insulation fault conditions by adjusting the fault resistance values of different gears to simulate different degrees of electrical insulation damage. The insulation fault injection module can be used for safety detection of the charging system to evaluate the response capability and safety performance of the system under insulation fault conditions, so as to ensure that the equipment can take necessary protection measures in time to prevent safety problems caused by insulation faults in real use.

[0053] The charging conversion device of the present application can realize the connection combination or physical interface conversion as shown in Table 1:

[0054] Table 1

[0055]

[0056] As can be seen from Table 1, the vehicles 4 with numbers 5-8 and 14-19 need conversion of different interface types between the vehicles 4 and the charging piles 5, and the communication and energy transmission between the vehicles 4 and the charging piles 5 can be realized by using the charging conversion device designed in the present application for physical conversion.

[0057] The conversion between the vehicles 4 with numbers 20-24 and the charging piles 5 can be realized by connecting an external protocol conversion module to the signal lines led out of the junction box 1 of the charging conversion device designed in the present application, so as to realize the communication and energy transmission between the vehicles 4 and the charging piles 5. However, such a protocol conversion module has no any innovation in nature and has been popularized in the industry, and thus will not be described here.

[0058] The charging conversion device is particularly suitable for cross-regional and cross-brand electric vehicle charging scenarios in actual application. Since there are differences in charging standards between different regions and different manufacturers, users often face the problem of mismatched charging interfaces. The present application provides the junction box 1 and the plurality of first and second connecting pieces and the intelligent signal processing system, so that different charging standards can be freely switched, and the charging interface compatibility problem is solved. The user only needs to select the connecting piece matched with the charging device or the object to be charged, and quickly complete the charging connection, thereby simplifying the charging process and improving the charging experience.

[0059] In addition, the flexibility of the modular design of the junction box 1 and the plurality of first and second connecting pieces makes the device have better expandability and adaptability. When a new charging interface standard appears, the user only needs to replace the corresponding connector, avoiding the cost and trouble of replacing the entire system.

[0060] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, so that: any equivalent changes made in structure, shape, principle, etc. according to the present application should be covered within the protection scope of the present application.

Claims

1. A charge conversion device, characterized by: The utility model provides a charging device, including a distribution box, a plurality of first connecting pieces, a plurality of second connecting pieces, one side of the plurality of first connecting pieces and the plurality of second connecting pieces is connected with the distribution box, the other side of the plurality of first connecting pieces is used to be connected with the object to be charged with different standard charging system, the other side of the plurality of second connecting pieces is used to be connected with the charging equipment with different standard charging system.

2. The charge conversion device of claim 1, wherein: The plurality of first connecting pieces includes a plurality of first female seat and a plurality of first male connector, the plurality of first female seat is arranged on the distribution box, the plurality of first male connector is arranged correspondingly with the plurality of first female seat, one end of the first male connector is connected with the corresponding first female seat, and the other end is connected with the object to be charged.

3. The charge conversion device of claim 1, wherein: The plurality of second connecting pieces includes a plurality of second female seat and a plurality of second male connector, the plurality of second female seat is arranged on the distribution box, one end of the plurality of second male connector is arranged correspondingly with the plurality of second female seat, one end of the second male connector is connected with the corresponding second female seat, and the other end is connected with the charging equipment.

4. The charge conversion device of claim 1, wherein: The distribution box is provided with an electrical signal interface, and the electrical signal interface is used to be connected with the electrical wiring and signal wiring related to the charging circuit.

5. The charge conversion device of claim 4, wherein: Further comprising a protocol conversion module, the electrical signal interface is connected with a signal line, the signal line passes out of the distribution box and is connected with the protocol conversion module.

6. The charge conversion device of claim 1, wherein: The distribution box is provided with a temperature signal interface, and the temperature signal interface is used to be connected with the temperature signal wiring of the object to be charged and the charging equipment.

7. The charge conversion device of claim 6, wherein: The distribution box is provided with a temperature monitoring module and a display panel, the temperature monitoring module is electrically connected with the display panel, the temperature monitoring module is used to monitor the temperature of the object to be charged and the charging equipment and feedback to the display panel display.

8. The charge conversion device of claim 1, wherein: The distribution box is provided with an insulation fault injection module, and the insulation fault injection module is used to simulate different working condition fault injection by selecting insulation fault resistance value of different gears.

9. The charge conversion device of claim 1, wherein: The distribution box is provided with an overload and short circuit protection module, the overload and short circuit protection module is used to monitor whether the charging circuit is overloaded and short-circuited, and is used to limit the current of the charging circuit.

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