High-power discharge machine system and direct-current voltage regulating device

Abstract

This invention provides a high-power discharger system and a DC voltage regulator. It comprises a DC voltage regulator as the master unit and at least two slave units, each slave unit being bound to an independent charging gun. When all charging guns are connected to the same battery, the control system board sends commands to each slave unit via the master unit, instructing them to directly output the DC voltage of their respective circuit to the DC / DC module. After integration, the voltage is sent to the PCS module for discharge. When charging guns are connected to different batteries, the control system board first selects one slave unit as a reference, sets its output voltage to the standard voltage, and sends this setting to the other slave units via the master unit. The remaining slave units use this voltage as a reference and dynamically adjust their own voltage using their built-in voltage regulator modules until it matches the standard voltage. Then, they connect their output circuits, ultimately achieving simultaneous input of multiple voltages to the DC / DC module, which completes the discharge process via the PCS module. This invention enables a single DC / DC module to safely and efficiently draw power from multiple batteries simultaneously, completely eliminating the circulating current risk caused by voltage differences in traditional solutions. This significantly improves the channel utilization and operating efficiency of the discharge equipment, contributing to increased overall operational revenue and user experience at the site.

Description

Technical Field

[0001] This invention relates to the field of discharge technology, and in particular to a high-power discharge machine system and a DC voltage regulator. Background Technology

[0002] In existing technologies, the typical electrical architecture of high-power dischargers usually connects to batteries via charging guns to provide DC input to DC / DC modules. A control system is often designed to be compatible with two charging guns corresponding to one DC / DC module for discharge control. However, when two guns are inserted into two batteries with different voltages, the system faces the risk of circulating current, which may cause power loss, equipment overheating, or even damage.

[0003] To address this issue, conventional solutions typically involve a DC / DC module drawing power from a single battery, manifested in two modes: single-gun single-plug (using only one charging gun) or dual-gun plugged into the same battery (both charging guns connected to the same battery). Using the former method directly results in the other charging gun being idle, leading to the following consequences: hardware resources are not fully utilized, limiting system discharge capacity; the number of vehicles or batteries that can be served by the charging station per unit time decreases, directly impacting revenue; and users may face queuing and cannot achieve efficient and rapid discharge, affecting the user experience. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a high-power discharger system and a DC voltage regulator to solve the technical problems of the prior art, which usually restricts the system to draw power from a single battery in order to avoid the risk of circulating current, resulting in the idleness of another charging channel and thus low equipment utilization and operating efficiency.

[0005] To achieve the above and other related objectives, the present invention provides a high-power discharger system, comprising a control system board, multiple DC voltage regulators, one or more batteries, a DC / DC converter, and a PCS module; wherein at least one DC voltage regulator acts as the master unit and is connected to the control system board via a serial port; at least two DC voltage regulators act as slave units, each slave unit being bound to an independent charging gun and communicating with the master unit; the input terminal of the DC / DC converter is connected to the output terminal of the slave unit; when each charging gun is inserted into the same battery, the control system board controls each battery through the master unit. The slave device outputs its DC voltage from its circuit to the DC / DC module, which integrates the voltage and then sends it to the PCS module for discharge. When different batteries are inserted into the charging guns, the control system board controls the slave device bound to the charging gun connected to one of the batteries through the host computer to output its DC voltage to the DC / DC module. The host computer also uses the voltage information collected by the corresponding slave device as the standard voltage and sends it to the other slave devices to adjust the input DC voltage. After adjustment, the slave device outputs the DC voltage to the DC / DC module, which integrates the voltage and then sends it to the PCS module for discharge.

[0006] In one embodiment of the present invention, the DC voltage regulator includes: a control chip, a DIP switch, a voltage regulation module, a liquid cooling module, a wireless communication module, a serial communication module, a battery, and a relay; wherein, the control chip is communicatively connected to the DIP switch, the voltage regulation module, the liquid cooling module, the wireless communication module, the serial communication module, the battery, and the relay; the DIP switch is used to set a unique address through hardware DIP, so that the control chip can determine whether the device is a master or a slave bound to a charging gun based on the address; the voltage regulation module is used to boost or buck the input battery voltage according to the control instructions of the control chip; the liquid cooling module is used to collect the internal environmental data of the DC voltage regulator in real time and automatically start the cooling operation; the wireless communication module is used to communicate wirelessly with the master or slave; the serial communication module is used to communicate serially with the control system board; the relay is used to connect or disconnect the DC output circuit of the DC / DC module according to the control instructions of the control chip.

[0007] In one embodiment of the present invention, when the control system board detects that each charging gun is inserted into the same battery, it forwards a synchronization command to each slave device through the host, so that each slave device controls the corresponding circuit to output directly; when the control system board detects that each charging gun is inserted into a different battery, it forwards a standard voltage command to each slave device through the host based on the standard voltage, so that the remaining slave devices adjust the voltage and connect the corresponding output circuit after the adjustment is completed.

[0008] In one embodiment of the present invention, if the DC voltage regulator is configured as a master unit, it receives voltage information uploaded by each slave unit through a wireless communication module and forwards the voltage information to the control system board through a serial communication module; it receives standard voltage commands or synchronization commands issued by the control system board through a serial communication module and forwards the commands to the corresponding slave unit through a wireless communication module, so as to control the slave unit to complete voltage synchronization and then control the relay to switch from the open state to the closed state, so as to output DC voltage to the DC / DC module.

[0009] In one embodiment of the present invention, if the DC voltage regulator is configured as a slave device, it sends the voltage information it monitors to the master device via a wireless communication module; when it receives a standard voltage command forwarded by the master device via the wireless communication module, it controls the voltage regulator module to adjust the input DC voltage, and after the voltage adjustment is completed, it controls the relay to switch from the open state to the closed state to output the DC voltage to the DC / DC module; when it receives a synchronization command forwarded by the master device via the wireless communication module, it directly controls the relay to switch from the open state to the closed state to output the DC voltage to the DC / DC module.

[0010] In one embodiment of the present invention, the voltage regulating module, liquid cooling module and relay in the DC voltage regulating device are detachable structures; when the DC voltage regulating device is set as a host, the voltage regulating module, liquid cooling module and relay can be removed to form a host device with only communication forwarding function.

[0011] In one embodiment of the present invention, the liquid cooling module integrates a circulating pump speed sensor, a fan speed sensor, a temperature sensor, a flow sensor, and a pressure sensor.

[0012] In one embodiment of the present invention, the DC voltage regulator further includes: a status indicator light connected to the control chip, which displays a blue light when the DC voltage regulator is in a ready or standby state; displays a green light when the DC voltage regulator is performing a voltage regulation operation; and displays a yellow light when the DC voltage regulator malfunctions.

[0013] In one embodiment of the present invention, the DC voltage regulator further includes: a power indicator light and a charging indicator light, connected to the control chip; the power indicator light is used to indicate the power status of the internal power supply: a constant light indicates sufficient power, and a flashing light indicates insufficient power requiring charging; the charging indicator light is used to indicate the charging status: it remains constantly lit during charging and automatically turns off after charging is completed.

[0014] To achieve the above and other related objectives, the present invention provides a DC voltage regulating device applied to the aforementioned high-power discharger system. The device includes: a control chip, a DIP switch, a voltage regulating module, a liquid cooling module, a wireless communication module, a serial communication module, a battery, and a relay. The control chip is communicatively connected to the DIP switch, voltage regulating module, liquid cooling module, wireless communication module, serial communication module, battery, and relay. The DIP switch is used to set a unique address via hardware, allowing the control chip to determine whether the device is a master or a slave bound to a charging gun based on this address. The voltage regulating module is used to boost or buck the input battery voltage according to the control commands from the control chip. The liquid cooling module is used to collect real-time internal environmental data of the DC voltage regulating device and automatically initiate cooling operations. The wireless communication module is used for wireless communication with the master or slave device. The serial communication module is used for serial communication with the control system board. The relay is used to connect or disconnect the DC output circuit of the DC / DC module according to the control commands from the control chip.

[0015] As described above, this invention is a high-power discharger system and a DC voltage regulator, which has the following beneficial effects: This invention sets up a DC voltage regulator as the master unit and at least two devices as slave units. Each slave unit is bound to an independent charging gun. When all charging guns are connected to the same battery, the control system board sends instructions to each slave unit through the master unit, causing them to directly output the DC voltage of their respective circuit to the DC / DC module. After integration, the voltage is sent to the PCS module for discharge. When the charging guns are connected to different batteries, the control system board first selects one slave unit as a reference, sets its output voltage to the standard voltage, and sends this information to the other slave units through the master unit. The remaining slave units use this voltage as a reference and dynamically adjust their own voltage through their built-in voltage regulator modules until it matches the standard voltage. Then, they connect their output circuits, ultimately achieving simultaneous input of multiple voltages to the DC / DC module, which completes the discharge process via the PCS module. This invention enables a single DC / DC module to safely and efficiently draw power from multiple batteries simultaneously, completely solving the circulating current risk caused by voltage differences in traditional solutions. This significantly improves the channel utilization and operating efficiency of the discharge equipment, contributing to improved overall station operating revenue and user experience. Attached Figure Description

[0016] Figure 1 The diagram shown is a structural schematic of a high-power discharger system according to an embodiment of the present invention.

[0017] Figure 2 The diagram shown is a schematic representation of a DC voltage regulating device according to an embodiment of the present invention.

[0018] Figure 3The diagram shown is a structural schematic of a high-power discharger system according to an embodiment of the present invention. Detailed Implementation

[0019] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0020] It should be noted that in the following description, reference is made to the accompanying drawings, which illustrate several embodiments of the invention. It should be understood that other embodiments may also be used, and changes in mechanical composition, structure, electrical system, and operation may be made without departing from the spirit and scope of the invention. The following detailed description should not be considered limiting, and the scope of the embodiments of the invention is defined only by the claims of the published patents. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. Spatially related terms, such as “upper,” “lower,” “left,” “right,” “below,” “below,” “lower part,” “above,” “upper part,” etc., may be used herein to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0021] Throughout this specification, when it is said that a part is "connected" to another part, this includes not only "direct connection" but also "indirect connection" by placing other elements in between. Furthermore, when it is said that a part "includes" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather means that other constituent elements may also be included.

[0022] The terms "first," "second," and "third," etc., used herein are for the purpose of describing various parts, components, regions, layers, and / or segments, but are not limiting. These terms are used only to distinguish one part, component, region, layer, or segment from others. Therefore, the "first part," "component," "region," "layer," or "segment" described below may refer to a "second part," "component," "region," "layer," or "segment" without departing from the scope of this invention.

[0023] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0024] This invention provides a high-power discharger system, comprising a DC voltage regulator as the master unit and at least two slave units. Each slave unit is bound to an independent charging gun. When all charging guns are connected to the same battery, the control system board sends commands to each slave unit via the master unit, instructing them to directly output the DC voltage of their respective circuit to the DC / DC module. After integration, the voltage is sent to the PCS module for discharge. When charging guns are connected to different batteries, the control system board first selects one slave unit as a reference, sets its output voltage to the standard voltage, and sends this setting to the other slave units via the master unit. The remaining slave units use this voltage as a reference and dynamically adjust their own voltage using their built-in voltage regulator modules until it matches the standard voltage. Then, they connect their output circuits, ultimately achieving simultaneous input of multiple voltages to the DC / DC module, which then completes the discharge process via the PCS module. This invention enables a single DC / DC module to safely and efficiently draw power from multiple batteries simultaneously, completely eliminating the circulating current risk caused by voltage differences in traditional solutions. This significantly improves the channel utilization and operating efficiency of the discharge equipment, contributing to increased overall operational revenue and user experience at the site.

[0025] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can readily implement it. The present invention can be embodied in many different forms and is not limited to the embodiments described herein.

[0026] like Figure 1 A schematic diagram of a high-power discharger system according to an embodiment of the present invention is shown.

[0027] The system includes:

[0028] Control system board 1 is the core of the system, responsible for overall coordination and command issuance.

[0029] Multiple DC voltage regulators are divided into master unit 2 and slave unit 3. There is at least one master unit 1, which is connected to the serial port of the control system board 1. There are at least two slave units 2, each of which is bound to an independent charging gun and communicates with the master unit 1.

[0030] Among them, the host 2 undertakes the key task of direct communication with the control system board 1, and is responsible for receiving instructions from the control system board 1 and accurately transmitting these instructions to each slave device. At the same time, the host 1 is also responsible for coordinating the work between the slave devices. In the case of multiple battery charging, it receives the standard voltage information collected by a slave device 2 and forwards it to other slave devices 3 to ensure the consistency and accuracy of voltage regulation of the entire system.

[0031] Each slave unit 2 is paired with an independent charging gun and can monitor parameters such as voltage and current of the battery connected to the charging gun in real time. Based on instructions from the host unit 1, it precisely adjusts the DC voltage output of its circuit to meet the charging needs of different batteries. When charging multiple batteries, it can also adjust its own voltage according to the host unit 1's requirements, using the standard voltage as a reference.

[0032] Multiple batteries 4 are energy storage power sources that provide DC power to the system, typically the power battery pack of an electric vehicle or a similar energy storage battery pack.

[0033] The DC / DC module 5's main function is to convert and integrate the input DC voltage. It can boost or buck the DC voltage output from different slave devices 3 according to system requirements, bringing it to a relatively stable voltage range suitable for subsequent processing, thus providing a stable input power supply for the PCS module.

[0034] PCS module (energy storage converter) 6 converts the DC power output from DC / DC module 5 into AC power, enabling the discharge of electrical energy. It can supply power to the grid or other AC loads according to actual needs, and is a key link in the system for energy interaction with the external grid or loads.

[0035] The specific workflow of the system under different charging scenarios is as follows:

[0036] When all charging guns are inserted into the same battery 4, the control system board 1 detects that all charging guns are connected to the same battery and sends a control command to the host 2 via the serial port, requesting each slave device 3 to output voltage. Upon receiving the command, the host 2 immediately forwards it to each slave device 3. The slave devices 3 begin operating according to the command, outputting the DC voltage of their respective circuits. The DC voltages output by each slave device 3 simultaneously enter the DC / DC module 5, which integrates these voltages, eliminating voltage fluctuations and differences, making the output voltage more stable. The integrated, stable DC voltage is then sent to the PCS module 6, which converts it into AC power to discharge to the external power grid or load.

[0037] When different charging guns are plugged into different batteries 4, the control system board 1 detects that the charging guns are connected to different batteries and, through the host 2, designates the slave device 3 bound to the charging gun connected to a certain battery as the standard voltage acquisition slave device. The slave device 3 outputs its DC voltage to the DC / DC module 5, while simultaneously acquiring the voltage information of that path as the standard voltage and feeding it back to the host 2.

[0038] After receiving the standard voltage, the master unit 2 sends it to the other slave units 3. Upon receiving the standard voltage command, each slave unit 3 adjusts its own output voltage based on this standard voltage, ensuring that the output voltage of each slave unit 3 is consistent with the standard voltage. After adjustment, each slave unit 3 outputs the DC voltage to the DC / DC module 5. The DC / DC module 5 further processes the integrated voltage to ensure its stability and quality, and then sends it to the PCS module 6 for discharge, converting the DC power into AC power for external use.

[0039] In one embodiment, such as Figure 2 The DC voltage regulator includes: a control chip, a DIP switch, a voltage regulation module, a liquid cooling module, a wireless communication module, a serial communication module, a battery, and a relay;

[0040] The control chip is connected to the DIP switch, voltage regulation module, liquid cooling module, wireless communication module, serial communication module, battery, and relay. It can acquire the status information of each module in real time and send corresponding control commands to each module according to the preset program and external instructions to coordinate the normal operation of the entire device.

[0041] The DIP switch is used to set a unique address via hardware, allowing the control chip to determine whether the device is the master (2) or a slave (3) bound to the charging gun. Specifically, 0 is used as a special identifier. When the address is set to 0, the control chip sets the device as the master (2), establishing a tight binding relationship between the master (2) and the control system board. The master (2) is responsible for receiving overall instructions from the control system board 1 and coordinating the work between slaves (3). When the address is set to a non-zero value, the control chip sets the device as a slave (3), which is bound to a specific charging gun and responsible for handling the charging-related tasks of the battery connected to that charging gun. The voltage regulator address is set based on the charging gun number. This design ensures that each charging gun has a corresponding and unique DC voltage regulator. In practical applications, staff can conveniently and quickly set the address of the corresponding DC voltage regulator using the DIP switch based on the charging gun's number, ensuring that the charging system can accurately identify and manage each charging gun and its related equipment, avoiding address conflicts and confusion, and improving the system's maintainability and manageability.

[0042] The voltage regulation module is used to boost or buck the input battery voltage according to the control instructions of the control chip.

[0043] The liquid cooling module is used to collect the internal environmental data of the DC voltage regulator in real time and automatically start the cooling operation.

[0044] The wireless communication module is used to communicate wirelessly with the host 2 or the slave 3. In a system consisting of multiple devices, the host and slave can interact with each other and transmit commands through the wireless communication module without the need for complex cable connections, which improves the flexibility and scalability of the system, while also reducing the difficulty and cost of wiring.

[0045] The serial communication module is used to communicate with the control system board via serial communication. Through serial communication, the DC voltage regulator can feed back its status information, such as voltage, current, and temperature, to the control system board in real time. It can also receive various control commands issued by the control system board, so as to realize the centralized management and control of the DC voltage regulator by the system.

[0046] The battery provides the electrical energy required for the DC voltage regulator to operate, ensuring the normal functioning of each module. The battery's performance and capacity affect the device's continuous operating time and stability; therefore, it is necessary to select an appropriate battery type and specification to meet actual requirements.

[0047] The relay is used to precisely connect or disconnect the DC output circuit of the DC / DC module 5 according to the control instructions of the control chip. When DC power is needed, the relay closes, allowing the current with the adjusted voltage to flow smoothly to the DC / DC module; when output is not needed or an abnormal situation occurs, the relay opens, cutting off the output circuit and protecting the system and equipment.

[0048] In one embodiment, the control system board 1 continuously monitors the connection status of each charging gun, acquiring real-time information on whether a charging gun is inserted and the battery inserted. When a charging gun is detected, the control system board 1 immediately initiates a judgment logic to analyze whether the charging guns are connected to the same battery or different batteries. This judgment process is based on a comprehensive analysis of the battery identification information or electrical parameter characteristics fed back from the charging gun connection ports.

[0049] If the control system board 1 determines that the charging guns are connected to the same battery, it will quickly generate a synchronization command. This command is sent to the host 2 via the serial communication module. After receiving the synchronization command, the host 2 forwards the command to each slave unit 3 using the wireless communication module. Upon receiving the synchronization command, the slave unit 3 immediately controls the corresponding circuit to output directly. This means that the slave unit 3 no longer performs additional boost or buck processing on the input battery voltage, but directly outputs the battery voltage to the subsequent DC / DC module 5 to minimize energy loss, improve charging efficiency, and meet the need for fast charging of the same battery.

[0050] When the control system board 1 determines that different batteries are inserted into each charging gun, it generates a standard voltage command based on preset standard voltage parameters. This command is first sent to the host 2, and then forwarded to each slave unit 3 via a wireless communication module. Upon receiving the standard voltage command, the slave unit 3 adjusts the input battery voltage according to the command requirements. Under the precise control of the control chip, the voltage regulation module adjusts the battery voltage to the standard voltage value. After adjustment, the slave unit 3 connects the corresponding output circuit via a relay, ensuring that the adjusted standard voltage is stably output to the subsequent DC / DC module. This ensures that different batteries can be charged at the appropriate voltage, guaranteeing the safety and stability of the charging process.

[0051] In one embodiment, if the DC voltage regulator is configured as the host 2, it is responsible for collecting the voltage information of each slave 3 and accurately transmitting it to the control system board, so that the control system board can fully grasp the voltage status of each part of the system. On the other hand, the host 2 receives the instructions issued by the control system board and forwards them to the corresponding slave 3, ensuring that the slave can perform voltage regulation and output control according to the overall requirements of the system, so as to realize the stable and efficient operation of the entire charging system.

[0052] Specific workflow:

[0053] Each slave device 3 monitors the voltage of its connected battery or charging circuit in real time and uploads this voltage information to the host device 2 via a wireless communication module. The host device 2 receives this voltage information from the different slave devices 3 via its wireless communication module and performs preliminary processing and storage. The host device 2 forwards the collected voltage information from each slave device to the control system board via a serial communication module. After receiving this information, the control system board issues a standard voltage command or a synchronization command. The host device 2 receives these commands via a serial communication module and forwards them to the corresponding slave device 3 via a wireless communication module. Upon receiving the command, the slave device performs voltage synchronization operations according to the command requirements. If it is a standard voltage command, the slave device adjusts the DC voltage to the standard voltage value; if it is a synchronization command, the host device 2 controls the relay to switch from an open state to a closed state, outputting the DC voltage to the DC / DC module 5 to provide suitable power for subsequent charging or other electrical equipment.

[0054] In one embodiment, if the DC voltage regulator is configured as slave device 3, slave device 3 is the key execution unit in the DC voltage regulation system for implementing specific voltage regulation and output control. It is directly connected to battery 4 or charging circuit, and is responsible for real-time monitoring of the voltage status of its own circuit. Based on different instructions forwarded by master device 2, it flexibly adjusts the output voltage or directly outputs voltage to meet the diverse voltage requirements under different charging scenarios, ensuring that the entire charging system can operate safely, stably, and efficiently.

[0055] Specific workflow:

[0056] Slave device 3 continuously monitors the voltage of the connected battery or charging circuit in real time. Once voltage data is detected, slave device 3 sends this voltage information to host device 2 via a wireless communication module. Slave device 3 receives the instructions forwarded by host device 2 and determines whether the instruction is a standard voltage instruction or a synchronization instruction. If the received instruction is a standard voltage instruction, slave device 3 controls its internal voltage regulation module to adjust the input DC voltage according to the standard voltage value set in the instruction. During the voltage adjustment process, slave device 3 monitors the output voltage in real time to ensure that it gradually approaches and stabilizes at the standard voltage value. When the voltage adjustment is complete, slave device 3 controls the relay to switch from the open state to the closed state, outputting the adjusted DC voltage to DC / DC module 5. When the received instruction is a synchronization instruction, slave device 3 does not need to perform voltage adjustment operations; it directly controls the relay to switch from the open state to the closed state, outputting the current DC voltage to DC / DC module 5. This approach is typically suitable for scenarios requiring rapid and synchronous voltage output, such as when multiple charging guns are inserted into the same battery, to reduce unnecessary voltage adjustment steps and improve charging efficiency.

[0057] It should be noted that the voltage regulation module precisely adjusts the difference between the battery voltage and the standard voltage to a set range, i.e., the adjustment is complete; the set range can be set to a minimum value of 100mV or less.

[0058] In one embodiment, during the DC voltage regulation process, the liquid cooling module inside the DC voltage regulator collects real-time environmental data and automatically initiates cooling to ensure stable operation of the voltage regulator during voltage increase and decrease. The liquid cooling module drives the coolant to flow in specific pipes through a circulating pump. The coolant absorbs the heat generated by the electronic components inside the voltage regulator and then flows through the radiator. Under the action of the fan, the heat is dissipated to the surrounding environment, thereby achieving the purpose of cooling and ensuring stable operation of the voltage regulator during voltage increase and decrease.

[0059] The liquid cooling module integrates multiple detection units and sensors, including a circulating pump speed sensor, a fan speed sensor, a temperature sensor, a flow sensor, and a pressure sensor. Furthermore, the liquid cooling module supports an adaptive automatic speed-adjustment cooling mechanism across multiple temperature ranges. (Circulating pump speed sensor is mentioned.)

[0060] A circulating pump speed sensor is used to monitor the circulating pump speed in real time. The circulating pump speed directly affects the flow rate of the coolant, and thus the heat dissipation effect.

[0061] A fan speed sensor is used to monitor the fan's rotational speed. The main function of the fan is to accelerate the airflow around the radiator, thereby improving heat dissipation efficiency. The fan speed determines the airflow speed, thus affecting the heat dissipation effect.

[0062] Temperature sensors (return / inlet): The inlet temperature sensor measures the temperature of the coolant entering the pressure regulating unit, while the return temperature sensor measures the temperature of the coolant flowing out of the pressure regulating unit. By comparing the temperature difference between the inlet and return components, the heat generation of the pressure regulating unit and the heat dissipation effect of the liquid cooling module can be clearly understood.

[0063] A flow sensor is used to monitor the flow rate of coolant in the pipes in real time. The flow rate directly affects the heat dissipation effect; an appropriate flow rate ensures that the coolant fully absorbs heat and removes it in a timely manner.

[0064] Pressure sensors monitor the pressure in coolant pipelines. Changes in pressure can reflect the operating status of the pipeline system, such as whether there are leaks or blockages.

[0065] The liquid cooling module uses the return liquid temperature information collected by the temperature sensor and a preset temperature threshold to divide the temperature into multiple levels, such as low temperature, medium temperature, and high temperature. At different temperature levels, the liquid cooling module automatically adjusts the speed of the circulation pump and fan to achieve adaptive cooling.

[0066] In one embodiment, the voltage regulating module, liquid cooling module, and relay in the DC voltage regulating device are detachable; when the DC voltage regulating device is configured as host 2, the voltage regulating module, liquid cooling module, and relay can be removed to form a host device with only communication forwarding function, which can reduce cost and device weight.

[0067] In a DC voltage regulator, the voltage regulation module adjusts the voltage to meet different charging requirements, the liquid cooling module dissipates heat to ensure stable operation, and the relay controls the circuit's on / off state. Designing these three components as detachable allows for flexible configuration based on various application scenarios and functional requirements. When used as a host device, actual voltage regulation, heat dissipation, and direct circuit on / off control are unnecessary. Removing these modules allows the device to focus solely on communication forwarding, enabling on-demand functional customization. When the DC voltage regulator is set as a host device and the voltage regulation module, liquid cooling module, and relay are removed, its functionality is simplified, focusing solely on communication forwarding. Removing the voltage regulation module, liquid cooling module, and relay significantly reduces the host device's manufacturing cost and weight.

[0068] In one embodiment, such as Figure 2 The DC voltage regulator also includes a status indicator light connected to the control chip, which displays different colors of light according to different operating states of the DC voltage regulator. When the device is in ready or standby mode, the indicator light displays blue, indicating that the device has completed initialization, all parameters are set normally, and it is ready to receive commands and start working at any time, but there is no actual voltage regulation task being performed. When the device is performing voltage regulation, the indicator light switches to green, meaning that the device is adjusting the DC voltage according to preset parameters and is in normal operating mode. When the device malfunctions, the indicator light displays yellow, reminding the operator that an abnormality has occurred and that timely inspection and repair are necessary to prevent the fault from escalating and causing more serious damage to the device.

[0069] In one embodiment, such as Figure 2The DC voltage regulator also includes a power indicator and a charging indicator, connected to the control chip. The power indicator conveys the internal power supply information through different display states. When the power indicator remains constantly lit, it clearly indicates that the internal power supply is sufficient, and the DC voltage regulator can operate normally and stably without immediate charging. At this time, the operator can confidently use the device for DC voltage regulation and other tasks. When the power indicator flashes, it is a clear warning signal, meaning that the internal power supply is insufficient and the device needs to be charged in time to avoid the device malfunctioning due to depletion of power, affecting efficiency and task progress. The charging indicator is mainly responsible for indicating the charging status of the device. During charging, the charging indicator remains constantly lit, allowing the operator to visually see that the device is being charged and understand that the charging process is in progress. This clear indication helps the operator to manage time reasonably and avoid accidental operation of the device before charging is complete. When charging is complete, the charging indicator automatically turns off, clearly informing the operator that charging has ended and the device has returned to a fully charged state and is ready for use. This intelligent indication method greatly improves the convenience and safety of users using the DC voltage regulator.

[0070] In one embodiment, the wireless communication module inside the DC voltage regulator uses the RF433M. The RF433M wireless communication module, with its long-range, strong penetration, anti-interference, industrial-grade stability, low power consumption, and low cost, is an ideal choice for internal communication in DC voltage regulators. It is particularly suitable for scenarios such as outdoor power equipment monitoring, industrial automation control, and distributed energy systems, significantly improving system reliability and operational efficiency while reducing deployment and maintenance costs.

[0071] It should be noted that the intelligent voltage regulation and voltage synchronization control logic of this solution is universal. In the simplified architecture that removes the DC / DC module, this solution can effectively solve the circulating current problem between batteries, enabling the system to achieve direct and efficient discharge from PACK to PCS.

[0072] To better describe the high-power discharger system, the following specific embodiments are provided.

[0073] Example: Compatible with dual charging guns for discharging control of high-power dischargers.

[0074] like Figure 3This is a schematic diagram of the high-power discharger system. The system mainly consists of a control system board, a DC voltage regulator, two batteries, a DC / DC module, and a PCS module. The DC voltage regulator adopts a modular master-slave design: at least one device (0) is set to address 0 via a DIP switch and acts as the master. It is connected to the control system board via a serial port. To reduce cost and weight, it retains only the wireless communication function and removes the voltage regulation module and liquid cooling module. The other two devices are set to addresses (1) and (2) and act as slaves. They are physically bound to two independent charging guns respectively. The slave is a fully functional unit that integrates all modules such as voltage regulation, liquid cooling, wireless communication, and relays. All devices are equipped with status indicator lights (blue / green / yellow indicate ready, voltage regulation in progress, and fault, respectively) and power / charging indicator lights, and support real-time interaction of status data with the master via a wireless network.

[0075] The system's workflow intelligently switches between two modes based on the insertion status of the charging guns. The first mode is "same-source mode": when two guns are inserted into the same battery, the system recognizes this and the control board, through the host instruction, controls the two slave units to directly connect their circuits, delivering electrical energy to the DC / DC module in parallel. In this mode, the voltage regulator does not work, but it achieves maximum power discharge of a single battery through dual channels.

[0076] The second type is the core "heterogeneous source synchronization mode," used to handle scenarios where two guns are each inserted with a battery that may have different voltages. Its control logic is rigorous and orderly: First, after the system confirms that the two guns are from different sources, all devices enter a blue light ready state. During discharge startup, the system instructs the slave device (device 1) corresponding to battery 1 to operate directly, outputting its voltage to the DC / DC module and setting this voltage as the "standard voltage." Subsequently, the control system sends the standard voltage to the slave device (device 2) corresponding to battery 2 through the host. Upon receiving the command, device 2 illuminates a green light and activates its voltage regulation module to adjust the voltage of battery 2 by stepping up and down to accurately track the standard voltage. During this high-power voltage regulation process, the liquid cooling module of device 2 automatically starts. This module integrates multiple sensors such as temperature, flow rate, and pressure, and can adaptively adjust its cooling speed based on internal environmental data to ensure continuous and stable operation. Before the entire voltage regulation process is completed, the DC relay at the output of device 2 remains disconnected to achieve electrical isolation. Only when the voltage difference between the output voltage of device 2 and the standard voltage is adjusted and stabilized within a very small range (e.g., ≤100mV) will the control system issue a command to activate the relay in that circuit, safely connecting battery 2 into the main circuit. At this point, the two batteries are connected in parallel under the premise of voltage synchronization, jointly supplying power to the DC / DC module. Subsequently, device 2 ends voltage regulation, returns to the blue light ready state, and the system enters the efficient and stable dual-battery discharge stage.

[0077] Similar in principle to the above embodiments, the present invention provides a DC voltage regulating device.

[0078] This device is applied to the high-power discharger system described in the above embodiments. The device includes: a control chip, a DIP switch, a voltage regulation module, a liquid cooling module, a wireless communication module, a serial communication module, a battery, and a relay; wherein, the control chip is communicatively connected to the DIP switch, voltage regulation module, liquid cooling module, wireless communication module, serial communication module, battery, and relay; the DIP switch is used to set a unique address via hardware, so that the control chip can determine whether the device is a master or a slave bound to the charging gun based on the address; the voltage regulation module is used to boost or buck the input battery voltage according to the control instructions of the control chip; the liquid cooling module is used to collect the internal environmental data of the DC voltage regulation device in real time and automatically initiate cooling operation;

[0079] The wireless communication module is used to communicate wirelessly with the host or slave device;

[0080] The serial communication module is used for serial communication with the control system board;

[0081] The relay is used to connect or disconnect the DC output circuit of the DC / DC module according to the control command of the control chip.

[0082] Since the implementation principle of the DC voltage regulator has been described in the foregoing embodiments, it will not be repeated here.

[0083] In summary, the high-power discharger system and DC voltage regulator of this invention employ a DC voltage regulator as the master unit and at least two slave units. Each slave unit is bound to an independent charging gun. When all charging guns are connected to the same battery, the control system board sends commands to each slave unit through the master unit, instructing them to directly output the DC voltage of their respective circuit to the DC / DC module. After integration, the voltage is sent to the PCS module for discharge. When charging guns are connected to different batteries, the control system board first selects one slave unit as a reference, sets its output voltage to the standard voltage, and sends this information to the other slave units through the master unit. The remaining slave units use this voltage as a reference and dynamically adjust their own voltage through their built-in voltage regulator modules until it matches the standard voltage. Then, they connect their output circuits, ultimately achieving simultaneous input of multiple voltages to the DC / DC module, which then completes the discharge process via the PCS module. This invention enables a single DC / DC module to safely and efficiently draw power from multiple batteries simultaneously, completely eliminating the circulating current risk caused by voltage differences in traditional solutions. This significantly improves the channel utilization and operating efficiency of the discharge equipment, contributing to increased overall operational revenue and user experience at the site. Therefore, this invention effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0084] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A high-power discharger system, characterized in that, The system includes: Control system board, multiple DC voltage regulators, one or more batteries, DC / DC module, PCS module; In this configuration, at least one DC voltage regulator serves as the master unit and is connected to the serial port of the control system board; at least two DC voltage regulators serve as slave units, each slave unit being bound to an independent charging gun and communicating with the master unit; the input terminal of the DC / DC module is connected to the output terminal of the slave unit. When each charging gun is inserted into the same battery, the control system board controls each slave device through the host to output the DC voltage of its circuit to the DC / DC module, which then integrates the voltage and sends it to the PCS module for discharge. When different batteries are inserted into each charging gun, the control system board controls the slave device bound to the charging gun connected to one of the batteries through the host, outputting its DC voltage to the DC / DC module. The voltage information collected by the corresponding slave device is used as the standard voltage and sent by the host to the other slave devices to adjust the input DC voltage. After the adjustment is completed, the DC voltage is output to the DC / DC module, integrated, and then sent to the PCS module for discharge.

2. The high-power discharger system according to claim 1, characterized in that, The DC voltage regulator includes: a control chip, a DIP switch, a voltage regulation module, a liquid cooling module, a wireless communication module, a serial communication module, a battery, and a relay; The control chip is connected to the DIP switch, voltage regulation module, liquid cooling module, wireless communication module, serial communication module, battery, and relay. The DIP switch is used to set a unique address through hardware DIP, so that the control chip can determine whether the device is a master or a slave bound to the charging gun based on the address. The voltage regulation module is used to boost or buck the input battery voltage according to the control instructions of the control chip. The liquid cooling module is used to collect the internal environmental data of the DC voltage regulator in real time and automatically start the cooling operation. The wireless communication module is used to communicate wirelessly with the host or slave device; The serial communication module is used for serial communication with the control system board; The relay is used to connect or disconnect the DC output circuit of the DC / DC module according to the control command of the control chip.

3. The high-power discharger system according to claim 2, characterized in that, When the control system board detects that each charging gun is inserted into the same battery, it forwards a synchronization command to each slave device through the host, so that each slave device controls the corresponding circuit to output directly; when the control system board detects that each charging gun is inserted into a different battery, it forwards a standard voltage command to each slave device through the host based on the standard voltage, so that the remaining slave devices adjust the voltage and connect the corresponding output circuit after the adjustment is completed.

4. The high-power discharger system according to claim 3, characterized in that, If the DC voltage regulator is set as the master, it receives voltage information uploaded by each slave device through the wireless communication module, and forwards the voltage information to the control system board through the serial communication module; it receives standard voltage commands or synchronization commands issued by the control system board through the serial communication module, and forwards the commands to the corresponding slave devices through the wireless communication module, so as to control the slave devices to complete voltage synchronization and then control the relay to switch from the open state to the closed state, so as to output DC voltage to the DC / DC module.

5. The high-power discharger system according to claim 3, characterized in that, If the DC voltage regulator is configured as a slave device, it sends the voltage information it monitors to the master device via a wireless communication module. When it receives a standard voltage command forwarded by the master device via the wireless communication module, it controls the voltage regulator module to adjust the input DC voltage. After the voltage adjustment is completed, it controls the relay to switch from the open state to the closed state to output the DC voltage to the DC / DC module. When it receives a synchronization command forwarded by the master device via the wireless communication module, it directly controls the relay to switch from the open state to the closed state to output the DC voltage to the DC / DC module.

6. The high-power discharger system according to claim 2, characterized in that, The voltage regulating module, liquid cooling module, and relay in the DC voltage regulating device are detachable. When the DC voltage regulating device is set as a host, the voltage regulating module, liquid cooling module, and relay can be removed to form a host device with only communication forwarding function.

7. The high-power discharger system according to claim 2, characterized in that, The liquid cooling module integrates a circulating pump speed sensor, a fan speed sensor, a temperature sensor, a flow sensor, and a pressure sensor.

8. The high-power discharger system according to claim 2, characterized in that, The DC voltage regulator also includes a status indicator light connected to the control chip. When the DC voltage regulator is in a ready or standby state, it displays a blue light; when the DC voltage regulator is performing a voltage regulation operation, it displays a green light; and when the DC voltage regulator malfunctions, it displays a yellow light.

9. The high-power discharger system according to claim 2, characterized in that, The DC voltage regulator also includes a power indicator and a charging indicator, which are connected to the control chip. The power indicator is used to indicate the power status of the internal power supply: a constant light indicates sufficient power, while a flashing light indicates insufficient power and the need for charging. The charging indicator is used to indicate the charging status: it remains constantly lit during charging and automatically turns off when charging is complete.

10. A DC voltage regulating device, characterized in that, The device, applied to a high-power discharger system as described in any one of claims 1 to 9, comprises: a control chip, a DIP switch, a voltage regulating module, a liquid cooling module, a wireless communication module, a serial communication module, a battery, and a relay; The control chip is connected to the DIP switch, voltage regulation module, liquid cooling module, wireless communication module, serial communication module, battery, and relay. The DIP switch is used to set a unique address through hardware DIP, so that the control chip can determine whether the device is a master or a slave bound to the charging gun based on the address. The voltage regulation module is used to boost or buck the input battery voltage according to the control instructions of the control chip. The liquid cooling module is used to collect the internal environmental data of the DC voltage regulator in real time and automatically start the cooling operation. The wireless communication module is used to communicate wirelessly with the host or slave device; The serial communication module is used for serial communication with the control system board; The relay is used to connect or disconnect the DC output circuit of the DC / DC module according to the control command of the control chip.

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