Hydrogen-electricity two-way conversion electric pile for electric automobile
By utilizing the hydrogen-oxygen reaction and automatic mode switching of the hydrogen-electric bidirectional conversion charging pile, the problems of grid burden and peak electricity price during peak periods of traditional charging piles are solved, realizing the complementarity of electric energy and hydrogen energy, and improving energy utilization and the economic benefits of charging stations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional charging stations rely on grid power, which can easily increase the burden on the power grid, especially during peak electricity demand periods. This can lead to grid saturation and potentially cause problems such as grid instability, power outages, or voltage fluctuations. In addition, electricity prices are higher during peak hours, increasing the operating costs of charging stations and affecting their profitability.
The system employs a hydrogen-to-electricity bidirectional conversion charging pile. Through an analysis module, it can determine the peak power status in real time. It utilizes the hydrogen-oxygen reaction to store energy during off-peak periods and supply power during peak periods, forming a closed-loop system that achieves complementarity between electrical and hydrogen energy. It also automatically switches charging modes to balance the grid load.
It enables the use of hydrogen-oxygen power supply units during peak hours and mains power charging units during off-peak hours, thereby shaving off peak loads, improving energy efficiency, reducing dependence on the municipal power system, lowering operating costs, and ensuring the sustainable operation of charging stations.
Smart Images
Figure CN121756955A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of charging pile technology, and in particular to a hydrogen-to-electric bidirectional charging pile for electric vehicles. Background Technology
[0002] With the increasing popularity of electric vehicles, the demand for charging infrastructure is growing. The rapid development of electric vehicles has provided more possibilities for green travel, but it has also placed higher demands on charging infrastructure. At present, most electric vehicle charging stations rely on municipal power supply. While this meets basic charging needs, it also brings many challenges, especially in areas with high grid load. The increase in grid load may not only increase the pressure on the power system, but may also lead to energy waste, especially during peak hours when grid electricity prices are high. First, traditional charging stations rely on grid power, which increases the burden on the power grid, especially in areas with high electricity demand where the grid load is already close to saturation. As the number of electric vehicles increases, charging demand will also increase, especially during peak hours on weekdays and peak electricity demand periods in winter and summer. The concentration of a large amount of charging demand may put enormous pressure on the power grid in a short period of time, and may even lead to local grid instability. In severe cases, it may even cause power outages or voltage fluctuations. In addition, grid load fluctuations may also affect other electricity demands, posing a considerable challenge to the entire power system. Secondly, the higher electricity price during peak hours increases the operating costs of charging stations. Since electric vehicle charging is usually concentrated in specific time periods, such as the evening rush hour, if charging stations rely heavily on grid power, they will inevitably have to bear higher electricity costs during peak hours. Long-term reliance on grid power not only increases the operating costs of charging stations but may also reduce their economic benefits. As a commercial operation, the profitability of charging stations largely depends on the control of energy costs. If the electricity price is too high during peak hours, it will directly affect the balance between income and expenditure of charging stations and may even affect their sustainable operation. Summary of the Invention The purpose of this invention is to address the shortcomings of existing technologies. Traditional charging piles rely on mains power, which can easily overburden the power grid, especially during peak electricity demand periods, leading to near-saturation of the grid and potentially causing grid instability, power outages, or voltage fluctuations. Furthermore, electricity prices are higher during peak hours, resulting in higher electricity costs for charging stations. This not only increases the operating costs of charging stations but may also reduce their economic efficiency, thereby affecting their profitability and sustainable operation. Therefore, how to rationally allocate energy and reduce energy costs during peak hours has become a key issue that urgently needs to be addressed in current charging infrastructure development.
[0003] To achieve the above objectives, the present invention adopts the following technical solution: a hydrogen-electric bidirectional conversion charging pile for electric vehicles, comprising a charging pile body, wherein a charging system is provided inside the charging pile body, the charging system comprising a mains power module for municipal power supply, the mains power module being electrically connected to an analysis module for analyzing whether it is during a peak municipal power consumption period, the analysis module being electrically connected to an adjustment module for adjusting the charging mode, the adjustment module being electrically connected to a mains charging unit for mains power charging and a hydrogen-oxygen charging unit for hydrogen-oxygen charging, the municipal charging unit and the hydrogen-oxygen charging unit being electrically connected, and both the municipal charging unit and the hydrogen-oxygen charging unit being connected to a charging module for providing power to the electric motor and the electric vehicle.
[0004] In a preferred embodiment, the mains power module is electrically connected to the municipal power system, and the municipal power supply provides the mains power module with electricity to meet its needs. The analysis module analyzes whether the municipal power consumption is in a peak period. If it is in a peak period, the adjustment module will adjust the charging mode of the charging pile body, and the hydrogen-oxygen charging module will provide power to charge the electric vehicle. If it is not in a peak period, the mains power charging unit will provide power to charge the electric vehicle.
[0005] In a preferred embodiment, the mains power charging unit includes a municipal power supply module for charging with municipal power and analyzing whether the charging pile is charging. The municipal power supply module is electrically connected to the charging module. The municipal power supply module is electrically connected to a detection module for detecting whether the hydrogen and oxygen reserves of the hydrogen-oxygen power supply unit are sufficient. The detection module is electrically connected to a pause module for pausing the decomposition of pure water and an electrolysis module for electrolyzing pure water. The electrolysis module is electrically connected to a water storage module for storing pure water. The water storage module is electrically connected to a diversion module for diverting and guiding hydrogen and oxygen to the hydrogen-oxygen charging unit.
[0006] In a preferred embodiment, the municipal power supply module is powered by the mains power module and can analyze whether the charging pile is in a charging state. If the charging pile is in a charging state, the charging module charges the electric vehicle. If the charging pile is not in a charging state, the detection module detects whether the hydrogen and oxygen in the hydrogen-oxygen charging unit are sufficient.
[0007] In a preferred embodiment, if the hydrogen and oxygen content in the hydrogen-oxygen charging unit is sufficient, the pause module will pause the decomposition of pure water. If the hydrogen and oxygen content in the hydrogen-oxygen charging unit is insufficient, the electrolysis module will electrolyze the pure water stored in the water storage module and decompose the pure water into hydrogen and oxygen. At the same time, the diversion module will divert the hydrogen and oxygen produced by the electrolysis of pure water to the hydrogen-oxygen charging unit.
[0008] In a preferred embodiment, the hydrogen-oxygen charging module includes an oxygen storage module for storing oxygen and a hydrogen storage module for storing hydrogen. The oxygen storage module and the hydrogen storage module are connected to a reaction module for generating energy through a hydrogen-oxygen chemical reaction. The reaction module is electrically connected to a hydrogen-oxygen power supply module for energy use and a diversion module for diverting pure water to a water storage module in the mains charging unit. The hydrogen-oxygen power supply module is electrically connected to the charging module.
[0009] In a preferred embodiment, the oxygen storage module and the hydrogen storage module are supplied with oxygen and hydrogen by the diversion module. The reaction module can chemically react the hydrogen from the hydrogen storage module and the oxygen from the oxygen storage module to generate pure water and energy. The hydrogen-oxygen power supply module consumes energy to enable the charging module to charge the electric vehicle. The diversion module diverts the pure water generated in the reaction module back to the water storage module for storage.
[0010] In a preferred embodiment, the oxygen and hydrogen contents in the oxygen storage module and the hydrogen storage module are detected by the detection module. If the oxygen content in the oxygen storage module and the hydrogen storage module is insufficient, it will be supplemented by electrolyzing pure water through the electrolysis module.
[0011] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, the dual-energy complementary mode innovatively utilizes surplus electricity for hydrogen electrolysis storage during off-peak hours and then uses hydrogen-oxygen reaction to generate electricity to charge vehicles during peak hours, achieving efficient complementarity between electrical energy and hydrogen energy. Through analysis and detection modules, the peak status of the mains power, hydrogen / oxygen storage content, and charging status are judged in real time, realizing automatic switching between charging and discharging and optimal energy allocation. The water generated by the hydrogen-oxygen reaction flows back to the water storage module, forming a closed loop system, improving the system's energy utilization rate and environmental friendliness.
[0012] 2. In this invention, the analysis module and adjustment module intelligently judge and switch modes during peak periods of municipal power supply, achieving the effect of automatically using the hydrogen-oxygen power supply unit during peak periods and the mains power charging unit during off-peak periods. This achieves the purpose of peak shaving and valley filling, and balancing the grid load. During off-peak periods of mains power, the electrolysis module electrolyzes pure water in the water storage module to generate hydrogen and oxygen, which are then stored, achieving the effect of energy storage conversion and improving power utilization efficiency. The detection module monitors the gas content of the hydrogen and oxygen storage modules in real time and automatically controls the start and stop of the electrolysis module, achieving the effect of avoiding energy waste and improving the safety of system operation. During peak periods, the reaction module reacts the stored hydrogen and oxygen to generate energy and supplies power through the hydrogen-oxygen power supply module, achieving the effect of improving energy utilization efficiency and reducing dependence on the municipal power system. The diversion module returns the pure water generated by the reaction to the water storage module, achieving the effect of recycling energy and materials within the system and realizing sustainable operation. By forming a two-way energy conversion closed loop of "electricity-hydrogen-electricity", the system achieves the effects of adaptive energy distribution, green environmental protection, energy saving and consumption reduction. Attached Figure Description
[0013] Figure 1 This invention presents a schematic diagram of a hydrogen-to-electric bidirectional conversion charging pile for electric vehicles; Figure 2 This invention provides a schematic diagram of a charging system for electric vehicles using a hydrogen-to-electric bidirectional conversion charging pile. Figure 3 This invention provides a schematic diagram of a municipal charging unit for a hydrogen-to-electric bidirectional conversion charging pile used in electric vehicles. Figure 4 This invention presents a schematic diagram of the hydrogen-oxygen charging unit process for a hydrogen-electric bidirectional conversion charging pile used in electric vehicles.
[0014] Legend: 1. Main body of the charging pile. Detailed Implementation
[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.
[0016] Example 1 like Figure 1-4As shown, the present invention provides a technical solution: a hydrogen-electric bidirectional conversion charging pile for electric vehicles, comprising a charging pile body 1, wherein a charging system is provided inside the charging pile body 1, the charging system comprising a mains power module for municipal power supply, the mains power module being electrically connected to an analysis module for analyzing whether it is during a peak municipal power consumption period, the analysis module being electrically connected to an adjustment module for adjusting the charging mode, the adjustment module being electrically connected to a mains power charging unit for mains power charging and a hydrogen-oxygen charging unit for hydrogen-oxygen charging, the municipal charging unit and the hydrogen-oxygen charging unit being electrically connected to each other, and both the municipal charging unit and the hydrogen-oxygen charging unit being connected to a charging module for providing power to the electric motor and the electric vehicle; The mains power module is electrically connected to the municipal power system. The municipal power supply provides the mains power module with electricity to meet the power demand. The analysis module analyzes whether the municipal power consumption is in a peak period. If it is in a peak period, the adjustment module will adjust the charging mode of the charging pile body 1. The hydrogen-oxygen charging module provides power and the charging module charges the electric vehicle. If it is not in a peak period, the mains power charging unit provides power and the charging module charges the electric vehicle. Through the above embodiments, the analysis module and adjustment module intelligently judge and switch modes during the peak period of municipal power, so as to automatically use the hydrogen-oxygen power supply unit during the peak period and the mains power charging unit during the off-peak period, thereby achieving the purpose of peak shaving and valley filling and balancing the grid load. By using the electrolysis module to electrolyze the pure water in the water storage module to generate hydrogen and oxygen during the off-peak period of mains power, the effect of energy storage conversion and improving the power utilization rate is achieved. The mains power charging unit includes a municipal power supply module for charging with municipal power and analyzing whether the charging pile is charging. The municipal power supply module is electrically connected to the charging module. The municipal power supply module is electrically connected to a detection module for detecting whether the hydrogen and oxygen reserves of the hydrogen-oxygen power supply unit are sufficient. The detection module is electrically connected to a pause module for pausing the decomposition of pure water and an electrolysis module for electrolyzing pure water. The electrolysis module is electrically connected to a water storage module for storing pure water. The water storage module is electrically connected to a diversion module for diverting and guiding hydrogen and oxygen to the hydrogen-oxygen charging unit. The municipal power supply module is provided with power by the mains power module. At the same time, it can analyze whether the charging pile body 1 is in a charging state. If the charging pile body 1 is in a charging state, the charging module will charge the electric vehicle. If the charging pile body 1 is not in a charging state, the detection module will detect whether the hydrogen and oxygen in the hydrogen-oxygen charging unit are sufficient. If the hydrogen and oxygen content in the hydrogen-oxygen charging unit is sufficient, the pause module will stop the decomposition of pure water. If the hydrogen and oxygen content in the hydrogen-oxygen charging unit is insufficient, the electrolysis module will electrolyze the pure water stored in the water storage module and decompose the pure water into hydrogen and oxygen. At the same time, the diversion module will divert the hydrogen and oxygen produced by the electrolysis of pure water to the hydrogen-oxygen charging unit. The hydrogen-oxygen charging module includes an oxygen storage module for storing oxygen and a hydrogen storage module for storing hydrogen. The oxygen storage module and the hydrogen storage module are connected to a reaction module for the hydrogen-oxygen chemical reaction to generate energy. The reaction module is electrically connected to a hydrogen-oxygen power supply module for energy use and a diversion module for diverting pure water to the water storage module in the mains charging unit. The hydrogen-oxygen power supply module and the charging module are electrically connected. The oxygen storage module and hydrogen storage module are supplied with oxygen and hydrogen by the diversion module. The reaction module can chemically react the hydrogen from the hydrogen storage module and the oxygen from the oxygen storage module to generate pure water and energy. The hydrogen-oxygen power supply module consumes energy to enable the charging module to charge the electric vehicle. The diversion module diverts the pure water generated in the reaction module back to the water storage module for storage. The oxygen and hydrogen contents in the oxygen and hydrogen storage modules are detected by the detection module. If the oxygen content in the oxygen and hydrogen storage modules is insufficient, it will be supplemented by electrolyzing pure water through the electrolysis module. Through the above embodiments, the detection module monitors the gas content of the hydrogen and oxygen storage modules in real time and automatically controls the start and stop of the electrolysis module, thereby avoiding energy waste and improving the safety of system operation. During peak periods, the reaction module reacts the stored hydrogen and oxygen to generate energy and supplies power through the hydrogen and oxygen power supply module, thereby improving energy utilization efficiency and reducing dependence on the municipal power system. The diversion module returns the pure water generated by the reaction to the water storage module, achieving the effect of recycling energy and materials within the system and realizing sustainable operation. By forming a two-way energy conversion closed loop of "electrical energy - hydrogen energy - electrical energy", the system achieves the effects of adaptive energy distribution, green environmental protection, energy saving and consumption reduction.
[0017] Working principle: like Figure 1-4 As shown, during use, the charging pile body 1 has two modes for charging the electric vehicle. The analysis module analyzes whether the municipal power system is in a peak period, and the adjustment module adjusts the charging mode. When the mains power supply is not at its peak: The adjustment module will adjust the charging mode, so that the electric vehicle is charged by the mains charging unit. The power received by the mains module is provided to the municipal power supply module, and then the municipal power supply module provides power to the charging module to charge the electric vehicle. Meanwhile, the municipal power supply module will also provide power to the electrolysis module for the water electrolysis reaction; If the charging pile is not in a charging state, the power provided by the municipal power supply module will be preferentially allocated to the electrolysis module. The detection module will analyze whether the hydrogen and oxygen contents of the hydrogen storage module and oxygen storage module in the hydrogen-oxygen charging unit are sufficient. If the hydrogen and oxygen contents of the hydrogen storage module and oxygen storage module are sufficient, the electrolysis module will not use the municipal power supply to electrolyze water. If the hydrogen and oxygen contents of the hydrogen storage module and oxygen storage module are insufficient, the electrolysis module will use the municipal power supply to electrolyze water. At the same time, the municipal power supply module will detect whether the main body of the charging pile 1 is in a charging state, that is, whether the charging module is in use. If it is in use, the electrolysis module will not electrolyze water. When the charging pile 1 does not charge the electric vehicle and the hydrogen and oxygen content of the hydrogen storage module and oxygen storage module is insufficient, the electrolysis module will electrolyze the pure water in the water storage module, and the produced oxygen and hydrogen will be transported to the hydrogen storage module and oxygen storage module for storage through the diversion module. When the mains power supply is at its peak: The hydrogen and oxygen in the hydrogen storage module and oxygen storage module will be transferred to the reaction module to react and generate pure water and energy. The energy will be supplied to the charging module to charge the electric vehicle through the hydrogen and oxygen power supply module, while the pure water will be guided by the diversion module to the water storage module in the mains charging unit for storage. During the use of the main body 1 of the charging pile: When the mains power supply is not at its peak, the mains charging unit charges the electric vehicle. If no electric vehicle is charging, the detection module will check whether the hydrogen and oxygen content in the hydrogen and oxygen storage modules of the hydrogen and oxygen charging unit is sufficient. If it is insufficient, the electrolysis module will electrolyze the pure water in the water storage module and deliver the decomposed hydrogen and oxygen to the hydrogen and oxygen storage modules for storage, respectively. During peak periods of mains power supply, the mains charging unit ceases to provide charging functionality. Instead, the hydrogen-oxygen charging unit supplies power to charge the trolley. Hydrogen and oxygen from the hydrogen and oxygen storage modules are transported to the reaction module, which then powers the charging module to charge the trolley. The pure water produced by the hydrogen-oxygen reaction is then returned to the water storage module for storage via a diversion module. After charging is complete, the detection module checks the sufficiency of hydrogen and oxygen in the storage modules. If insufficient, water is electrolyzed to form hydrogen and oxygen gas, which are then returned to the hydrogen and oxygen storage modules for storage. This process achieves bidirectional hydrogen-electricity conversion and recycling.
[0018] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.
Claims
1. A hydrogen-to-electric bidirectional conversion charging pile for electric vehicles, comprising a charging pile body (1), characterized in that: The charging pile body (1) is equipped with a charging system inside. The charging system includes a mains power module for municipal power supply. The mains power module is electrically connected to an analysis module for analyzing whether it is during the peak period of municipal power consumption. The analysis module is electrically connected to an adjustment module for adjusting the charging mode. The adjustment module is electrically connected to a mains charging unit for mains power charging and a hydrogen-oxygen charging unit for hydrogen-oxygen charging. The municipal charging unit and the hydrogen-oxygen charging unit are electrically connected. Both the municipal charging unit and the hydrogen-oxygen charging unit are connected to a charging module for providing power to the motor and the trolley.
2. The hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 1, characterized in that: The mains power module is electrically connected to the municipal power system. The municipal power supply provides the mains power module with electricity for the power demand. The analysis module analyzes whether the municipal power consumption is in a peak period. If it is in a peak period, the adjustment module will adjust the charging mode of the charging pile body (1). The hydrogen-oxygen charging module provides power and the charging module charges the electric vehicle. If it is not in a peak period, the mains power charging unit provides power and the charging module charges the electric vehicle.
3. A hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 1, characterized in that: The mains power charging unit includes a municipal power supply module for charging with municipal power and analyzing the charging status of the charging pile. The municipal power supply module is electrically connected to the charging module. The municipal power supply module is electrically connected to a detection module for detecting whether the hydrogen and oxygen reserves of the hydrogen-oxygen power supply unit are sufficient. The detection module is electrically connected to a pause module for pausing the decomposition of pure water and an electrolysis module for electrolyzing pure water. The electrolysis module is electrically connected to a water storage module for storing pure water. The water storage module is electrically connected to a diversion module for diverting hydrogen and oxygen to the hydrogen-oxygen charging unit.
4. A hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 3, characterized in that: The municipal power supply module is provided with power by the mains power module. At the same time, it can analyze whether the charging pile body (1) is in a charging state. If the charging pile body (1) is in a charging state, the charging module will charge the electric vehicle. If the charging pile body (1) is not in a charging state, the detection module will detect whether the hydrogen and oxygen in the hydrogen and oxygen charging unit are sufficient.
5. A hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 4, characterized in that: If the hydrogen and oxygen content in the hydrogen-oxygen charging unit is sufficient, the pause module will stop the decomposition of pure water. If the hydrogen and oxygen content in the hydrogen-oxygen charging unit is insufficient, the electrolysis module will electrolyze the pure water stored in the water storage module and decompose the pure water into hydrogen and oxygen. At the same time, the diversion module will divert the hydrogen and oxygen produced by the electrolysis of pure water to the hydrogen-oxygen charging unit.
6. A hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 3, characterized in that: The hydrogen-oxygen charging module includes an oxygen storage module for storing oxygen and a hydrogen storage module for storing hydrogen. The oxygen storage module and the hydrogen storage module are connected to a reaction module for the hydrogen-oxygen chemical reaction to generate energy. The reaction module is electrically connected to a hydrogen-oxygen power supply module for energy use and a diversion module for diverting pure water to the water storage module in the mains charging unit. The hydrogen-oxygen power supply module and the charging module are electrically connected.
7. A hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 6, characterized in that: The oxygen storage module and hydrogen storage module are supplied with oxygen and hydrogen by the distribution module. The reaction module can chemically react the hydrogen from the hydrogen storage module and the oxygen from the oxygen storage module to generate pure water and energy. The hydrogen-oxygen power supply module consumes energy to enable the charging module to charge the electric vehicle. The diversion module diverts the pure water generated in the reaction module back to the water storage module for storage.
8. A hydrogen-to-electric bidirectional conversion charging station for electric vehicles according to claim 6, characterized in that: The oxygen and hydrogen contents in the oxygen and hydrogen storage modules are detected by the detection module. If the oxygen content in the oxygen and hydrogen storage modules is insufficient, it will be supplemented by electrolyzing pure water through the electrolysis module.