Charging device and electric vehicle
By integrating a metering module and a display module into the charging device, the power level and range can be displayed in real time, solving the problems of information transparency and ease of interaction for portable charging devices and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG CFMOTO POWER CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-02
AI Technical Summary
Existing portable charging devices lack information transparency and ease of interaction. Users need to check the real-time range multiple times, which is cumbersome and makes it impossible to obtain charging data intuitively, resulting in a disconnect between user experience and market demand.
It integrates a metering module, a display module, and a communication module, and displays the battery level and driving range in real time through the charging device, thus building a closed-loop information link between the user and the electric vehicle, achieving battery transparency and convenient interaction.
It improves the transparency and convenience of the charging process, allowing users to obtain charging power and SOC status without having to check inside the vehicle, simplifying the operation process and enhancing the user experience.
Smart Images
Figure CN224311611U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of charging technology, and in particular to a charging device and an electric vehicle. Background Technology
[0002] The urgency of global energy restructuring and environmental protection has accelerated the full electrification of transportation. Diverse mobility sectors, including automobiles, commercial vehicles, all-terrain vehicles, and motorcycles, are gradually transitioning to electric power, and the market penetration rate of electric vehicles continues to climb. With the large-scale application of electric vehicles, their ownership is growing rapidly, and charging demand is shifting from "low-frequency replenishment" to "high-frequency essential demand," highlighting the increasing importance of supporting charging infrastructure. Especially in urban energy replenishment scenarios, outdoor emergency scenarios, and temporary charging scenarios in remote areas, flexible and convenient charging solutions have become one of the core needs of users.
[0003] Among related technologies, portable charging devices, with their compact size, strong adaptability, and plug-and-play characteristics, have become key tools for meeting the fragmented and mobile charging needs. However, existing products focus on basic power transmission, making it difficult to match users' demands for information transparency and convenient interaction. For example, during charging, users need to repeatedly check the real-time range on the vehicle's dashboard, which is cumbersome and inefficient. Simultaneously, the devices themselves lack precise power metering capabilities, preventing users from intuitively obtaining data for each charge and leading to concerns about the reasonableness of fees in paid scenarios. These shortcomings result in a significant disconnect between the user experience of traditional products and the current market demands for intelligent and sophisticated solutions. Utility Model Content
[0004] To address the shortcomings of the prior art, this application provides a charging device and an electric vehicle with high charging transparency and convenient interaction.
[0005] This application provides a charging device for charging an electric vehicle. The charging device includes: a power plug for obtaining alternating current (AC); a controller including a rectifier module for converting AC to direct current (DC), with the input terminal of the rectifier module connected to the power plug; a charging gun connected to the output terminal of the rectifier module to deliver the converted DC to the electric vehicle; the controller also includes: a metering module connected to the rectifier module for metering the amount of electricity in the rectifier module; a control module connected to the rectifier module for controlling the rectifier module to perform power conversion, and the control module is also connected to the metering module to obtain the amount of electricity; and a display module connected to the output terminal of the control module for displaying the amount of electricity and / or the driving range.
[0006] In the charging device of this application, the basic framework can be constructed from a power plug, a controller (including a rectifier module, a metering module, and a control module), and a charging gun. The rectifier module converts AC power into DC power for the electric vehicle. The metering module directly measures the output power of the rectifier module and provides real-time feedback to the user through a display module. The user can directly obtain the current charging power and SOC status on the device screen without needing to check inside the vehicle, improving charging transparency and ease of interaction. In other words, the charging device of this application can establish a closed-loop information link between the user, the charging device, and the electric vehicle by integrating data acquisition and information display functions, thereby enabling the charging device and the electric vehicle to have high charging transparency and ease of interaction.
[0007] In some embodiments, the controller further includes a communication module connected to the control module. The communication module is used to interact with the electric vehicle, and the information includes at least one of the electric vehicle's driving range, battery SOC, charging voltage requirement, and charging current requirement.
[0008] In some embodiments, the communication module is coupled to the charging gun head, and the communication module connects to the electric vehicle through the charging gun head to exchange information with the electric vehicle.
[0009] In some embodiments, the controller further includes a wireless communication module connected to the control module. The wireless communication module is used to communicate wirelessly with the user terminal. The content of the wireless communication includes at least one of the following: battery level, driving range, battery SOC, operating status of the charging device, and fault information of the charging device.
[0010] In some embodiments, the charging device further includes a power cord for connecting a power plug to the input terminal of a rectifier module.
[0011] In some embodiments, the controller further includes a current transformer module connected to the power line and used to measure the current flowing through the power line. The input terminal of the metering module is connected to the current transformer module and the power line. The metering module is used to convert the current signal in the current transformer module into a numerical signal to obtain the power.
[0012] In some embodiments, the charging device further includes a charging cable for connecting the output terminal of the rectifier module and the output terminal of the charging gun head.
[0013] In some embodiments, a rectifier module is connected between the power line and the charging line. The rectifier module is used to convert the AC power flowing through the power line into DC power and deliver it to the charging gun head through the charging line.
[0014] In some embodiments, the controller further includes an output switch module disposed between the charging cable and the charging gun head. The control module is connected to the control terminal of the output switch module and is used to control the on / off state of the output switch module to control the power supply state of the charging gun head to the electric vehicle.
[0015] This application also provides an electric vehicle, including: a frame; a running system, at least partially located under the frame; a power system, at least partially supported by the frame and connected to the running system for driving the running system; and an electrical system configured to control the power system to drive the running system. The electric vehicle can be charged using the charging device of any of the above embodiments of this application. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure and application scenario of the charging device according to an embodiment of this application.
[0017] Figure 2 This is a schematic diagram showing the structural composition and connection relationship of the charging device according to the first embodiment of this application.
[0018] Figure 3 This is a schematic diagram showing the structural composition and connection relationship of the charging device according to the second embodiment of this application.
[0019] Figure 4 This is a schematic diagram of the structure and connection relationship of the charging device according to the third embodiment of this application.
[0020] Figure 5 This is a schematic diagram of the structure of an electric vehicle according to an embodiment of this application. Detailed Implementation
[0021] In the description of the embodiments in this application, the words "exemplary," "or," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Specifically, the use of the words "exemplary," "or," and "for example" is intended to present the relevant concepts in a specific manner.
[0022] 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 application pertains. The terminology used in this application's specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. It should be understood that, unless otherwise stated, " / " in this application means "or". For example, A / B can mean A or B. "And / or" in this application is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. "At least one" refers to one or more. "More than one" refers to two or more. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, and a, b, and c (seven cases).
[0023] It should also be noted that the terms "first" and "second" in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.
[0024] This application provides a charging device for charging electric vehicles. By integrating data acquisition and information display functions, a closed-loop information link is constructed between the user, the charging device, and the electric vehicle, enabling the charging device and the electric vehicle to have high charging transparency and convenient interaction. The term "driving range" used in this application refers to the maximum estimated distance that an electric vehicle can continuously travel under specific conditions with the current remaining battery power, measured in kilometers (km). This value is calculated by the ratio of the available battery power to the average energy consumption of the electric vehicle. Furthermore, the term "battery SOC" used in this application refers to the state of charge (SOC), which represents the percentage of the remaining available battery power to its nominal maximum available capacity (nominal capacity), i.e., SOC = (available power ÷ nominal capacity) × 100%, a key indicator reflecting the real-time energy reserves of the battery. Additionally, the term "coupling" used in this application refers to coupling or partial integration. Finally, the term "electric vehicle" used in this application refers to electric vehicles, electric commercial vehicles, electric all-terrain vehicles, electric motorcycles, and electric bicycles, among other electric transportation tools.
[0025] Figure 1 This is a schematic diagram of the overall structure and application scenario of the charging device 100 according to an embodiment of this application. Figure 2 This is a schematic diagram showing the structural composition and connection relationship of the charging device 100 according to the first embodiment of this application.
[0026] like Figure 1As shown, the charging device 100 provided in the embodiments of this application may include a power plug 11, a controller 12, and a charging gun 13. The power plug 11 can be used to connect to an AC power source 200 to obtain AC power; the controller 12 can be connected to the power plug 11 to control power conversion and energy consumption metering, for example, obtaining AC power from the AC power source 200 (such as mains power, charging pile, etc.) through the power plug 11 and converting the AC power to DC power; the charging gun 13 can be connected to the controller 12 to deliver the power converted by the controller 12 to the electric vehicle 300. In this configuration, the power plug 11, controller 12, and charging gun 13 can form the basic framework of the charging device 100 for charging the electric vehicle 300.
[0027] Among them, such as Figure 2 As shown, the controller 12 may include a rectifier module 121, a metering module 122, a control module 123, and a display module 124. The input terminal of the rectifier module 121 can be connected to the power plug 11, and the rectifier module 121 can be used to convert AC power to DC power. The input terminal of the metering module 122 can be connected to the output terminal of the rectifier module 121, and is used to meter the power consumption of the rectifier module 121. The input terminal of the control module 123 can be connected to the output terminals of the rectifier module 121 and the metering module 122 respectively, and is used to control the rectifier module 121 to perform power conversion and to obtain the power consumption measured by the metering module 122. The input terminal of the display module 124 can be connected to one output terminal of the control module 123, and is used to display the power consumption and / or driving range. In this configuration, the rectifier module 121 converts AC power into DC power to supply the electric vehicle 300. The metering module 122 directly measures the charge of the rectifier module 121 and provides real-time feedback to the user through the display module 124. The user can directly obtain information such as the current charging charge and battery SOC status through the display module 124 without having to check inside the vehicle, thus improving charging transparency and ease of interaction.
[0028] In some embodiments, the display module 124 can display the battery level in the form of numbers or a progress bar, and the display module 124 can use different colors to indicate the charging status. For example, during the initial charging stage of the electric vehicle 300 (when the remaining battery level is 0 or low), the display module 124 can display the screen in blue. When the electric vehicle 300 is fully charged, the display module 124 can display the screen in green. If the temperature is too high during the charging process of the electric vehicle 300, the display module 124 can display the screen in orange. If the current is overloaded during the charging process of the electric vehicle 300, the display module 124 can display the screen in red. This allows the user to see different charging statuses, making it easier for the user to choose the charging time and duration, and improving the safety of the charging process.
[0029] In embodiments of this application, the metering module 121 may include at least one of the following components or circuits used for power metering: current transformer, voltage transformer, shunt, Hall effect sensor, analog-to-digital converter, and power factor / power measurement circuit.
[0030] In some embodiments, such as Figure 1 or Figure 2 As shown, the charging device 100 may also include a power cord 14 for connecting the power plug 11 to the input terminal of the rectifier module 121.
[0031] In some embodiments, such as Figure 1 or Figure 2 As shown, the charging device 100 may further include a charging cable 15, which connects an output terminal of the rectifier module 121 to an input terminal of the charging gun head 13. The charging cable 15 may integrate a power line and a signal line; the power line can be used to transmit electrical energy, and the signal line can be used to transmit signals.
[0032] In some embodiments, such as Figure 2 As shown, the controller 12 may further include a current transformer module 125, a rectifier module 121, and an output switch module 126. The input terminal of the current transformer module 125 can be connected to the power supply line 14. The current transformer module 125 includes a first output terminal and a second output terminal. The first output terminal of the current transformer module 125 is connected to the metering module 122, and the second output terminal of the current transformer module 125 is connected to the rectifier module 121 via the power supply line 14. The current transformer module 125 can be used to shunt the current from the power supply line 14. The input terminal of the metering module 122 can be connected to both the current transformer module 125 and the power supply line 14. The metering module 122 can be used to convert the current signal in the current transformer module 125 into a numerical signal to obtain the electrical quantity. In this case, the current transformer module 125 converts the current into a small voltage signal, combines it with time integration to calculate the total electrical quantity, thereby achieving accurate metering. Specifically, when transmitting electrical energy, the current transformer module 125, in conjunction with the metering module 122, can accurately calculate the current passing through the current transformer module 125 using Ohm's law. The metering module 122 accurately acquires the voltage and current values input to the controller 12, and uses a dedicated metering chip to calculate the amount of electricity flowing through the power line 14 and input to the controller 12 using an integral formula. The integral formula is as follows: ,in, Q To input the power of controller 12, U The voltage value is input to controller 12. I The input controller 12 is the current value.
[0033] In some embodiments, the metering module 122 can also interact with the control module 123 in real time, for example, by feeding back the calculated power consumption to the control module 123 in real time.
[0034] In some embodiments, such as Figure 2 As shown, the input terminal of rectifier module 121 is connected to the second output terminal of current transformer module 125 via power line 14, and the output terminal of rectifier module 121 is connected to the input terminal of output switch module 126 via charging cable 15. Rectifier module 121 can convert AC power flowing through power line 14 into DC power and deliver it to charging head 13 via charging cable 15. In this configuration, rectifier module 121 can output stable DC power suitable for the battery system of electric vehicle 300.
[0035] In the embodiments of this application, the rectifier module 121 may include rectifiers (such as diodes), capacitors, voltage regulators, and inductors, etc., which are required for converting AC power into DC power and for processes such as filtering and voltage regulation.
[0036] In some embodiments, such as Figure 2 As shown, the controller 12 may further include an output switch module 126. The input terminal of the output switch module 126 can be connected to the output terminal of the rectifier module 121 via the charging cable 15, and the output terminal of the output switch module 126 is connected to the charging gun head 13. The control module 123 can be connected to the control terminal of the output switch module 126 and used to control the on / off state of the output switch module 126 to control the power supply state of the charging gun head 13 to the electric vehicle 300. In this case, the control module 123 can monitor abnormalities (such as overvoltage / overcurrent) in real time and trigger the switch action, thereby reducing the possibility of damage to the equipment or electric vehicle 300 due to overcharging.
[0037] In embodiments of this application, the output switch module 126 may include at least one of the following components used for switch control: a controllable diode, a transistor, etc.
[0038] Figure 3 This is a schematic diagram of the structure and connection relationship of the charging device 100 according to the second embodiment of this application.
[0039] In some embodiments, such as Figure 3As shown, the controller 12 may further include a communication module 127, which is connected to the control module 123. The communication module 127 is used to interact with the electric vehicle 300. The interacted information may include at least one of the following: the electric vehicle 300's driving range, the electric vehicle 300's battery SOC, charging voltage requirements, and charging current requirements. In this case, the communication module 127 can be used to establish a data link between the charging device 100 and the electric vehicle 300, allowing the user to centrally view the electric vehicle 300's battery status and charging requirement parameters, thereby enabling repeated confirmation operations.
[0040] In some embodiments, the communication module 127 can be coupled to the charging head 13, that is, the communication module 127 can be coupled to or integrated into the charging head 13. The communication module 127 can connect to the electric vehicle 300 through the charging head 13 to exchange information with the electric vehicle 300. In this case, reusing the physical connection of the charging head 13 to achieve communication can reduce additional communication cables and simplify the structure.
[0041] The communication protocol type for the communication module 127 to interact with the electric vehicle 300 may include at least one of CAN (Controller Area Network) bus, LIN (Local Interconnect Network) bus, FlexRay, and PLC (Power Line Communication).
[0042] In some embodiments, the display module 124 can also be used to display at least one of the following: driving range, battery SOC, operating status of the charging device 100, and fault information of the charging device 100. In this case, by combining the display of dynamic data of the electric vehicle 300 (such as driving range, battery SOC, operating status of the charging device 100, and fault information of the charging device 100) with the charging process, intuitive monitoring with multiple uses on one screen can be achieved.
[0043] Figure 4 This is a schematic diagram of the structure and connection relationship of the charging device 100 according to the third embodiment of this application.
[0044] In some embodiments, such as Figure 4As shown, the controller 12 may further include a wireless communication module 128, which is connected to the control module 123. The wireless communication module 128 is used to communicate wirelessly with the user terminal 400. The wireless communication content includes at least one of the following: battery level, driving range, battery SOC, operating status of the charging device 100, and fault information of the charging device 100. In this case, wireless transmission can overcome the limitations of physical distance, enabling users to remotely monitor the charging status and receive fault warnings, thus improving safety.
[0045] The wireless communication module 128 can adopt at least one of the following communication methods: Bluetooth, Wi-Fi, Zigbee, Z-Wave, Thread, UWB, LoRaWAN, NB-IoT, and 4G / 5G cellular networks.
[0046] In the embodiments of this application, the communication module 127 can interact with the electric vehicle 300 through the signal lines in the charging cable 15 and the charging gun head 13 to obtain the estimated driving range, battery SOC, charging voltage requirements, charging current requirements, and other necessary information from the electric vehicle 300, and interact with the control module 123 in real time. The control module 123 interacts with the metering module 122 and the communication module 127 in real time to obtain the necessary information, and is responsible for controlling the start and stop of the rectifier module 121 and the closing / opening of the output switch module 126 according to the charging strategy of the electric vehicle 300 (such as normal charging, float charging, or overcharging control) to control the charging device 100 to output DC power to charge the electric vehicle 300. The control module 123 is also used to control the display module 124 to intuitively display the input power accurately calculated by the metering module 122 to the user. At the same time, the control module 123 is also used to control the display module 124 to intuitively display the range information of the electric vehicle 300 obtained from the interaction with the electric vehicle 300. In addition, the control module 123 is also used to control the display module 124 to display the working status information of the controller 12, etc.
[0047] In addition, the display module 124 can intuitively display the real-time driving range of the electric vehicle 300, obtained through information interaction with the electric vehicle 300, to the user via the display screen. Users can directly view the driving range of the electric vehicle 300 on the display screen of the portable charging device 100 without having to return to the vehicle, thus improving the user experience. The display module 124 can also intuitively display the power level of the input controller 12 to the user via the display screen. It can accurately measure the charging power each time, allowing users to intuitively understand the charging power, improving the user experience and dispelling doubts about the reasonableness of charging fees.
[0048] In addition, the display module 124 can also intuitively display the SOC information of the electric vehicle 300 battery, so that the user does not need to return to the vehicle to check the battery SOC information. The display module 124 can also display the working status of the charging device 100, the fault information of the charging device 100, etc., so that the user can intuitively understand whether it is charging normally, whether charging is complete, and what faults occur if they occur.
[0049] In addition, the wireless communication module 128 interacts wirelessly with the user terminal 400 (e.g., a mobile APP), allowing users to remotely view information such as the electric vehicle 300's range, charging power, battery SOC, the working status of the charging device 100, and faults, thereby improving the user experience.
[0050] Figure 5 This is a schematic diagram of the structure of the electric vehicle 300 according to an embodiment of this application.
[0051] Please see Figure 5 This application also provides an electric vehicle 300, including: a frame 31; a running system 32, at least partially located below the frame 31; a power system 33, at least partially supported by the frame 31, connected to the running system 32, and used to drive the running system 32; and an electrical system 34 configured to control the power system 33 to drive the running system 32. The electric vehicle 300 can be charged using the charging device 100 of any of the above embodiments of this application.
[0052] In summary, the charging device 100 of this application can build a closed-loop information link between the user, the charging device 100, and the electric vehicle 300 by integrating functions such as data acquisition, wireless communication, and information display, thereby enabling the charging experience to leap from functional satisfaction to experience upgrade.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.
Claims
1. A charging device for charging an electric vehicle, the charging device comprising: A power plug, used to obtain alternating current; The controller includes a rectifier module that converts alternating current to direct current, the input terminal of which is connected to the power plug; A charging gun head, which is connected to the output terminal of the rectifier module, to deliver the converted DC power to the electric vehicle; The controller is characterized in that it comprises: A metering module, which is connected to the rectifier module, is used to measure the power of the rectifier module. A control module is connected to the rectifier module to control the rectifier module to perform power conversion, and the control module is also connected to the metering module to obtain the amount of electricity. The display module is connected to the output of the control module and is used to display the battery level and / or driving range.
2. The charging device according to claim 1, characterized in that, The controller further includes a communication module connected to the control module. The communication module is used to interact with the electric vehicle, and the information includes at least one of the electric vehicle's driving range, battery SOC, charging voltage requirement, and charging current requirement.
3. The charging device according to claim 2, characterized in that, The communication module is coupled to the charging gun head, and the communication module connects to the electric vehicle through the charging gun head to exchange information with the electric vehicle.
4. The charging device according to claim 2, characterized in that, The controller further includes a wireless communication module connected to the control module. The wireless communication module is capable of wireless communication with the user terminal. The wireless communication content includes at least one of the following: the battery level, the driving range, the battery SOC, the operating status of the charging device, and the fault information of the charging device.
5. The charging device according to claim 1, characterized in that, The charging device also includes a power cord that connects the power plug to the input terminal of the rectifier module.
6. The charging device according to claim 5, characterized in that, The controller also includes a current transformer module, which is connected to the power line and used to measure the current flowing through the power line. The input terminal of the metering module is connected to the current transformer module and the power line. The metering module is used to convert the current signal in the current transformer module into a numerical signal to obtain the electrical quantity.
7. The charging device according to claim 5, characterized in that, The charging device also includes a charging cable, which is used to connect the output end of the rectifier module and the charging gun head.
8. The charging device according to claim 7, characterized in that, The rectifier module is connected between the output end of the power line and the input end of the charging line. The rectifier module converts the AC power flowing through the power line into DC power and delivers it to the charging gun head through the charging line.
9. The charging device according to claim 7, characterized in that, The controller further includes an output switch module, which is disposed between the charging cable and the charging gun head. The control module is connected to the control terminal of the output switch module and is used to control the on / off state of the output switch module to control the power supply state of the charging gun head to the electric vehicle.
10. An electric vehicle, comprising: Frame; A walking system, at least partially located under the vehicle frame; A power system, at least partially supported by the vehicle frame, connected to the running gear system, for driving the running gear system; An electrical system configured to control the power system to drive the mobility system; The electric vehicle is characterized in that it is charged by a charging device as described in any one of claims 1 to 9.