A high-voltage box power supply control device and a high-voltage box

Abstract

The utility model discloses high pressure box power supply control device, and this device is applied to high pressure box, and includes first power supply management module, second power supply management module, prevent reverse module, first power supply management module is used to convert the target voltage that first voltage received is needed power supply demand module, second power supply management module is used to convert the target voltage that second voltage received is needed power supply demand module, prevent reverse module is used for the forward output of target voltage to power supply demand module, and power supply demand module supplies power. Visible, the utility model can realize uninterrupted power supply without UPS to reduce the wiring complexity in high pressure box interior, and through the simultaneous work of first power supply management module and second power supply management module to guarantee uninterrupted power supply to high pressure box, and it is favorable to improve the power supply reliability of high pressure box.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage box power supply control technology, and in particular to a high-voltage box power supply control device and a high-voltage box. Background Technology

[0002] In liquid-cooled energy storage systems, the high-voltage box, as a core hub, bears the heavy responsibility of connecting the energy storage battery pack to external equipment, while also possessing multiple protection mechanisms including overcurrent, overvoltage, undervoltage, and short circuit protection. However, current conventional high-voltage boxes primarily rely on external UPS uninterruptible power supplies and 220V AC mains power for auxiliary power. Because UPS equipment integrates complex components such as batteries, rectifiers, and inverters, it is bulky and has complex wiring, requiring significant space to be reserved during the high-voltage box design phase, significantly increasing the difficulty of space planning. Furthermore, in the event of a mains power outage, traditional high-voltage boxes need to switch to UPS battery power, but this switching process carries risks of power delay and instability, resulting in low power supply reliability.

[0003] Therefore, it is particularly important to provide a new power supply control device for high-voltage boxes to improve the power supply reliability of high-voltage boxes and reduce wiring complexity. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-voltage box power supply control device and a high-voltage box, which reduces the wiring complexity inside the high-voltage box and helps to improve the power supply reliability of the high-voltage box.

[0005] To address the aforementioned technical problems, the first aspect of this utility model discloses a high-voltage box power supply control device. This device is applied in a high-voltage box and includes a first power supply management module, a second power supply management module, and an anti-reverse module, wherein:

[0006] The first terminal of the first power supply management module is electrically connected to the first terminal of the anti-reverse module, the first terminal of the second power supply management module is electrically connected to the second terminal of the anti-reverse module, the second terminal of the first power supply management module is used to connect to the first voltage, the second terminal of the second power supply module is used to connect to the second voltage, and the third terminal of the anti-reverse module is used to connect to the power demand module.

[0007] The first power supply management module is used to convert the received first voltage into the target voltage required by the power demand module;

[0008] The second power supply management module is used to convert the received second voltage into the target voltage required by the power demand module;

[0009] The anti-reverse module is used to output the target voltage in the positive direction to the power demand module to supply power to the power demand module.

[0010] As an optional implementation, in the first aspect of this utility model, the device further includes a first circuit breaker module, wherein:

[0011] The first terminal of the first circuit breaker module is electrically connected to the second terminal of the first power supply management module, and the second terminal of the first circuit breaker module is used to connect to the first voltage.

[0012] The first circuit breaker module is used to disconnect or connect the access path between the first power supply management module and the first voltage; and / or,

[0013] The device further includes a second circuit breaker module, wherein:

[0014] The first terminal of the second circuit breaker module is electrically connected to the second terminal of the second power supply management module, and the second terminal of the second circuit breaker module is used to connect to the second voltage;

[0015] The second circuit breaker module is used to disconnect or connect the access path between the second power supply management module and the second voltage.

[0016] As an optional implementation, in the first aspect of this utility model, the first power supply management module includes a DC / DC power supply module, and / or the second power supply management module includes an AC / DC power supply module.

[0017] As an optional implementation, in the first aspect of this invention, the first voltage is the DC voltage output by the lithium battery, and / or the second voltage is the AC mains voltage.

[0018] As an optional implementation, in the first aspect of this utility model, the device further includes the power demand module;

[0019] The power demand module includes a BMS.

[0020] As an optional implementation, in the first aspect of this utility model, the first terminal of the BMS is electrically connected to the third terminal of the anti-reverse module, and the second terminal of the BMS is electrically connected to the signal acquisition terminal of the lithium battery.

[0021] When the device includes the first circuit breaker module, the third terminal of the BMS is electrically connected to the third terminal of the first circuit breaker module.

[0022] As an optional implementation, in the first aspect of this utility model, the BMS is used to control the closing or opening of the first circuit breaker module based on the electrical parameters collected by the signal acquisition terminal of the lithium battery.

[0023] As an optional implementation, in the first aspect of this utility model, the anti-reverse module includes a first anti-reverse diode and a second anti-reverse diode, wherein:

[0024] The anode of the first anti-reverse diode is electrically connected to the first terminal of the first power management module, the anode of the second anti-reverse diode is electrically connected to the first terminal of the second power management module, and the cathodes of both the first and second anti-reverse diodes are electrically connected to the first terminal of the BMS.

[0025] As an optional implementation, in the first aspect of this invention, when the device includes the first circuit breaker module, the first circuit breaker module includes a miniature circuit breaker, wherein:

[0026] The first terminal of the miniature circuit breaker is electrically connected to the first terminal of the first power management module, the second terminal of the miniature circuit breaker is used to connect to the first voltage, and the third terminal of the miniature circuit breaker is electrically connected to the third terminal of the BMS.

[0027] The second aspect of this utility model discloses a high-voltage box, which includes a high-voltage box power supply control device as disclosed in any of the first aspects.

[0028] Compared with the prior art, the embodiments of this utility model have the following beneficial effects:

[0029] This utility model provides a high-voltage box power supply control device and a high-voltage box. The device is used in a high-voltage box and includes a first power supply management module, a second power supply management module, and a reverse protection module. The first power supply management module converts a received first voltage into a target voltage required by the power demand module. The second power supply management module converts a received second voltage into a target voltage required by the power demand module. The reverse protection module outputs the target voltage in the forward direction to the power demand module to supply power. Therefore, this utility model can reduce wiring complexity and improve the power supply reliability of the high-voltage box. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a high-voltage box power supply control device disclosed in an embodiment of this utility model;

[0032] Figure 2This is a schematic diagram of another high-voltage box power supply control device disclosed in this utility model embodiment;

[0033] Figure 3 This is a structural schematic diagram of another high-voltage box power supply control device disclosed in this utility model embodiment;

[0034] Figure 4 This is a structural schematic diagram of another high-voltage box power supply control device disclosed in this utility model embodiment;

[0035] Figure 5 This utility model discloses a topology diagram for AC and DC power supply;

[0036] Figure 6 This is a structural schematic diagram of a high-pressure box disclosed in an embodiment of this utility model. Detailed Implementation

[0037] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0038] It should be noted that, unless otherwise expressly specified and limited, the term "electrical connection" in the specification, claims, and accompanying drawings of this utility model should be interpreted broadly. For example, it can be a fixed electrical connection, a detachable electrical connection, or an integral electrical connection; it can be a mechanical electrical connection, an electrical-electrical connection, or a connection that allows for communication; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements or an interaction between two elements. Furthermore, the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] This utility model discloses a first power supply management module, a second power supply management module, and a reverse protection module. The first power supply management module converts a received first voltage into the target voltage required by the power demand module. The second power supply management module converts a received second voltage into the target voltage required by the power demand module. The reverse protection module outputs the target voltage in the forward direction to the power demand module, supplying power to it. This enables uninterrupted power supply without a UPS, thereby reducing the wiring complexity inside the high-voltage box. The simultaneous operation of the first and second power supply management modules ensures uninterrupted power supply to the high-voltage box, improving its power supply reliability. These are described in detail below.

[0040] Example 1

[0041] Please see Figure 1 , Figure 1 This utility model discloses a high-voltage box power supply control device. This device not only reduces equipment costs but also improves the safety and convenience of equipment operation. This utility model embodiment is not limited in its scope. Figure 1 As shown, the high-voltage box power supply control device is used in the high-voltage box, and the device includes a first power supply management module 101, a second power supply management module 102, and an anti-reverse module 103, wherein:

[0042] The first end of the first power supply management module 101 is electrically connected to the first end of the anti-reverse module 103, the first end of the second power supply management module 102 is electrically connected to the second end of the anti-reverse module 103, the second end of the first power supply management module 101 is used to access the first voltage, the second end of the second power supply module 102 is used to access the second voltage, and the third end of the anti-reverse module 103 is used to electrically connect to the power demand module.

[0043] The first power supply management module 101 is used to convert the received first voltage into the target voltage required by the power demand module;

[0044] The second power supply management module 102 is used to convert the received second voltage into the target voltage required by the power demand module;

[0045] The anti-reverse module 103 is used to output the target voltage in the positive direction to the power demand module to supply power to the power demand module.

[0046] In this embodiment of the present invention, optionally, the first voltage is the DC voltage output by the lithium battery, and the second power supply is the AC mains voltage.

[0047] In this embodiment of the present invention, optionally, the second power supply management module is used to convert the received mains power into DC power. For example, the second power supply management module converts the AC 220V from the mains power into DC 24V.

[0048] In this embodiment of the present invention, optionally, the anti-reverse module ensures that the target voltage outputs a 24V power supply in the positive direction and transmits the 24V power supply in the positive direction to the power demand module to supply power to the power demand module.

[0049] In this embodiment of the present invention, the power demand module may optionally include one or more of the following: load device, BMS device, and control device.

[0050] In this embodiment of the invention, optionally, the first power management module and the second power management module operate simultaneously, and the first power management module and the second power management module operate independently; further optionally, if one power module malfunctions, it will not affect the operation of the other power module. This allows the high-voltage box to be supplied with both AC and DC power simultaneously, unlike traditional high-voltage boxes that can only be supplied with AC, ensuring uninterrupted and continuous power supply, so that the BMS of the high-voltage box has a continuous and uninterrupted power supply.

[0051] In this embodiment of the present invention, optionally, the first power supply management module draws power from the lithium battery in the battery pack and connects to the DC copper busbar inside the high-voltage box; in this way, power can be drawn from the external wiring harness of the battery pack, and the wiring of the first power supply management module can be completed inside the high-voltage box, which can save the wiring cost of the equipment and is conducive to saving the design cost of the equipment.

[0052] It is evident that implementation Figure 1The described high-voltage box power supply control device can convert the received first voltage into the target voltage required by the power demand module through the first power supply management module, and convert the received second voltage into the target voltage required by the power demand module through the second power supply management module. Furthermore, it outputs the target voltage to the power demand module in the positive direction through the reverse protection module. It can simultaneously supply power based on the first and second power supply management modules, ensuring uninterrupted power supply and improving the continuity and stability of power supply. Moreover, unlike traditional high-voltage boxes that must contain UPS equipment, this device eliminates the need for installation space for UPS equipment, as the first and second power supply management modules alone can achieve the desired power supply. Intermittent power supply can save installation space for UPS equipment and the number of other interface harnesses, thus reducing equipment design costs and interface harness costs. This also helps to reduce the overall design size and cost of the high-voltage box. Furthermore, the anti-reverse module can prevent current backflow between the first and second power management modules, avoiding damage caused by interference between power modules. This improves the safety and stability of the equipment and further enhances its reliability. The independent design of the power module and the anti-reverse module allows for flexible configuration, improving the equipment's flexibility and adaptability, and ultimately enhancing its overall performance.

[0053] In an optional embodiment, such as Figure 2 As shown, the device also includes a first circuit breaker module 104, wherein:

[0054] The first terminal of the first circuit breaker module 104 is electrically connected to the second terminal of the first power supply management module 101, and the second terminal of the first circuit breaker module 104 is used to connect to the first voltage.

[0055] The first circuit breaker module 104 is used to disconnect or connect the access path between the first power supply management module 101 and the first voltage; and / or,

[0056] The device also includes a second circuit breaker module 105, wherein:

[0057] The first terminal of the second circuit breaker module 105 is electrically connected to the second terminal of the second power supply management module 102, and the second terminal of the second circuit breaker module 105 is used to connect to the second voltage.

[0058] The second circuit breaker module 105 is used to disconnect or connect the access path between the second power supply management module 102 and the second voltage.

[0059] In this optional embodiment, when the first circuit breaker module 104 receives an external signal, it controls the circuit breaker to disconnect according to the instruction of the external signal, thereby disconnecting the electrical connection between the first power supply management module 101 and the lithium battery, and stopping the first power supply management module 101 from receiving the first voltage, wherein the first voltage can be the DC voltage output by the lithium battery.

[0060] In this optional embodiment, it is further optional that when the first circuit breaker module 104 disconnects the electrical connection between the first power management module 101 and the lithium battery, a low battery alarm for the lithium battery can be issued.

[0061] In this optional embodiment, the circuit breaker can be either a mechanical circuit breaker or a semiconductor circuit breaker. For example, the circuit breaker can be a miniature circuit breaker. When it is necessary to disconnect the circuit, the mechanical switch miniature circuit breaker is driven by a control signal to switch it from a closed state to an open state, so as to disconnect the electrical connection between the first power management module 101 and the lithium battery and thus stop the first power management module 104 from receiving the first voltage.

[0062] In this optional embodiment, the second circuit breaker module 105 is further optionally used to disconnect the electrical connection between the second power supply management module 102 and the mains power.

[0063] As can be seen, implementing this optional embodiment can disconnect the electrical connection between the first power management module and the lithium battery through the first circuit breaker module when the lithium battery power is insufficient, avoiding the impact of over-discharge on battery life. Furthermore, the second circuit breaker module can disconnect the electrical connection between the second power management module and the mains power, thereby stopping the second power management module from drawing power from the mains power. This can ensure the safety of the device and prevent excessive current or voltage from damaging the equipment. In addition, the combination of the first and second circuit breaker modules can provide the device with a safer and more reliable device, which is conducive to improving the safety and reliability of the device operation, and thus also conducive to improving the overall performance of the device.

[0064] In another alternative embodiment, such as Figure 3 As shown, the first power management module 101 includes a DC / DC power module, and / or the second power management module 102 includes an AC / DC power module.

[0065] In this optional embodiment, the first power management module may include a DC / DC power module, whose main function is to obtain DC power from the battery cluster and convert it into a DC 24V voltage to provide backup power for the BMS, BMU and other electrical equipment in the high-voltage box. This design ensures that the system can still operate normally when the mains power fails. The DC / DC module obtains power from the high-voltage DC bus of the battery cluster. The DC-DC conversion circuit inside the module converts the high-voltage DC power, such as 300V to 500V, into a stable DC 24V output. Furthermore, if the battery cluster's power level is lower than a preset threshold, the first circuit breaker module 104 will be instructed to disconnect the DC / DC module from the lithium battery to protect the battery safety.

[0066] In this optional embodiment, the second power management module may include an AC / DC power module, which primarily converts the AC 220V voltage supplied by the mains power into DC 24V voltage to provide a stable DC power supply for the BMS battery management system, BMU battery management unit, and other electrical equipment in the high-voltage box. For example, the AC / DC module obtains AC 220V power from the mains power supply, converts the AC power into DC power, and then converts the high-voltage DC power into a stable DC 24V output through a DC-DC conversion circuit. Furthermore, to prevent the DC 24V voltage output by the power module from flowing back to other power modules, an anti-reverse diode is installed on the output side of the AC / DC module to ensure that the current can only flow in one direction.

[0067] In this optional embodiment, further optionally, power can be drawn from the mains power and the lithium battery through the AC / DC power module and the DC / DC power module respectively, enabling the AC / DC module and the DC / DC module to work simultaneously, providing two 24V DC power supplies to the equipment in the high-voltage box. When the mains power is normal, the AC / DC module is the main power supply; when the mains power fails, the DC / DC module automatically takes over the power supply to ensure uninterrupted system operation. Furthermore, the two power supplies are connected in parallel through anti-reverse diodes to ensure that the power modules do not interfere with each other.

[0068] In this optional embodiment, such as Figure 5 As shown, Figure 5 This is a topology diagram of AC and DC power supply disclosed in an embodiment of the present utility model. The AC / DC module is connected to the mains power, the DC / DC module is connected to the miniature circuit breaker QF1, and the miniature circuit breaker QF1 is connected to the lithium battery. The AC / DC module and the DC / DC module are respectively connected to the anti-reverse diode D1 and the anti-reverse diode D2, and output a 24V power supply.

[0069] As can be seen, implementing this optional embodiment can obtain power from the lithium battery cluster through the DC / DC module of the first power management module and from the mains power through the AC / DC module of the second power management module. The dual power module design can ensure continuous power supply to the system. When the mains power is normal, the AC / DC module provides power. When the mains power is interrupted, the DC / DC module can draw power from the lithium battery to provide power. With the two power modules working simultaneously, a smooth switch between mains power and battery power can be achieved, ensuring uninterrupted power supply to the BMS and other critical equipment and maintaining stable system operation. Traditional energy storage systems usually need to be equipped with UPS uninterruptible power supply equipment to provide backup power when the mains power fails. However, this design requires additional batteries, rectifiers and inverters, which not only increases costs but also occupies a large installation space. By combining AC / DC and DC / DC modules, there is no need for a separate UPS, significantly reducing system cost and space requirements. The AC / DC module draws power directly from the mains, while the DC / DC module draws power from the battery pack inside the high-voltage box. This simplifies wiring, reduces the number of external wiring harnesses, and lowers system complexity and failure risk. The first power management module (DC / DC) supports battery input, while the second power management module (AC / DC) supports mains input. This design allows the system to flexibly adapt to different application scenarios, ensuring normal operation whether powered by mains or batteries. It also enables dynamic automatic switching between mains and lithium batteries, improving power supply intelligence and reliability, as well as the safety and lifespan of the power modules, and consequently, the safety and reliability of the equipment.

[0070] In yet another alternative embodiment, such as Figure 3 As shown, the first voltage is the DC voltage output by the lithium battery, and / or the second voltage is the AC mains voltage.

[0071] In this optional embodiment, the DC voltage output by the lithium battery can be the DC voltage output by the lithium battery cluster; the mains voltage refers to the voltage of residential or commercial AC power in the urban power grid. This allows the device to simultaneously support both lithium battery power and mains power, allowing users to flexibly choose the power supply method according to their actual needs. For example, in environments with mains power, mains power is used first to save lithium battery power; in cases where mains power is unavailable or unstable, the device seamlessly switches to lithium battery power to ensure continuous operation.

[0072] As can be seen, implementing this optional embodiment enables the lithium battery to act as a backup power source based on the DC voltage output by the lithium battery and the mains voltage. It can immediately take over the power supply task when the mains power is interrupted, avoiding equipment downtime or data loss due to power outages. This significantly improves the reliability and availability of the device. The device can also automatically switch the power supply according to preset rules or real-time monitored voltage status, improving the intelligence and reliability of power supply, optimizing energy utilization efficiency, and enhancing the stability of the device.

[0073] In yet another alternative embodiment, such as Figure 3 As shown, the device also includes a power demand module 106;

[0074] The power demand module 106 includes a BMS1061.

[0075] In this optional embodiment, the power demand module 106 may include a BMS1061, which enables the output 24V power supply to continuously and uninterruptedly power the BMS1061.

[0076] In this optional embodiment, the power demand module 106 may further include one or more of the target load device and the control device. This embodiment of the present invention does not impose specific limitations.

[0077] In this optional embodiment, the BMS1061 is optionally a core component of the power demand module 106, specifically designed to manage and monitor the battery pack in the energy storage system. Its function is to ensure the safe operation of the battery pack, extend battery life, and optimize battery performance. Further optionally, the BMS1061 can monitor battery status, for example, including one or more of voltage monitoring, current monitoring, and temperature monitoring; the BMS1061 can protect the battery, for example, including one or more of overvoltage protection, undervoltage protection, overcurrent protection, short circuit protection, and temperature protection; the BMS1061 can communicate, for example, it can interact with external systems such as monitoring systems and control units to transmit battery status information in real time or control electronic components, or control electronic components by receiving control commands from external systems, such as controlling circuit breaker disconnection, charge / discharge control, and setting current and voltage protection thresholds, for example, one or more of these.

[0078] As can be seen, implementing this optional embodiment can also ensure that the battery and equipment operate within a safe range through the multiple protection functions of the BMS included in the power demand module. It can effectively prevent faults such as overcharging, over-discharging, overcurrent, and short circuits. When equipment or battery abnormalities are detected, the power supply can be quickly cut off based on the real-time detection of the BMS to prevent the fault from spreading. Furthermore, through the real-time detection and low-charge detection protection functions of the BMS, it can prevent the battery from being over-discharged, thereby reducing irreversible damage to the battery. At the same time, it can help improve the safety, stability, and reliability of battery use, as well as the scalability and lifespan of battery use. Moreover, it can also enable remote monitoring and real-time control of electronic components through communication between the BMS and external systems, which can help improve the intelligence and real-time performance of equipment and battery management, and further improve the safety, reliability, and stability of equipment and battery use.

[0079] In yet another alternative embodiment, such as Figure 3 As shown, the first terminal of BMS1061 is electrically connected to the third terminal of the anti-reverse module 103, and the second terminal of BMS1061 is electrically connected to the signal acquisition terminal of the lithium battery.

[0080] When the device includes the first circuit breaker module 104, the third terminal of the BMS1061 is electrically connected to the third terminal of the first circuit breaker module 104.

[0081] In this optional embodiment, further optionally, when the device includes the second circuit breaker module 105, the fourth terminal of the BMS1061 is electrically connected to the third terminal of the second circuit breaker module 105.

[0082] In this optional embodiment, the BMS1061 can be further optionally used to control the closing or opening of the first circuit breaker module 104 and / or the second circuit breaker module 105.

[0083] As can be seen, implementing this optional embodiment can be electrically connected to the first circuit breaker module and the anti-reverse module via the BMS, and can intelligently control the closing or opening of the first circuit breaker module 104 and / or the second circuit breaker module 105, which can improve the overall efficiency of the system, and also help improve the intelligence and automation control of the system, which can help improve the safety and intelligence of the power module, and further help improve the safety and reliability of the equipment.

[0084] In yet another alternative embodiment, such as Figure 3 As shown, BMS1061 is used to control the closing or opening of the first circuit breaker module 104 based on the electrical parameters collected by the signal acquisition terminal of the lithium battery.

[0085] In this optional embodiment, the BMS may also be used to control the closing or opening of the second circuit breaker module 105.

[0086] In this optional embodiment, the electrical parameters acquired by the signal acquisition terminal of the lithium battery may optionally include the power parameters of the lithium battery.

[0087] In this optional embodiment, the BMS can monitor the battery status and monitor the lithium battery power in real time. If the BMS detects that the lithium battery power is low, it controls the first circuit breaker module 104 to disconnect the first power management module 101 from the lithium battery.

[0088] In this optional embodiment, for example, if the BMS1061 detects that the battery voltage is too high, the current is too high, or the temperature is abnormal, it determines that the lithium battery is in a fault state, generates a disconnection control signal and transmits it to the first circuit breaker module 104, so as to disconnect the connection between the first power management module 101 and the lithium battery through the first circuit breaker module 104, thereby protecting the battery and the system from damage; if the battery is in a normal state, the BMS maintains the connection between the first power management module 101 and the lithium battery so that the first power management module 101 can work normally.

[0089] As can be seen, implementing this optional embodiment can control the closing or opening of the first circuit breaker module 104 through the electrical parameters collected by the signal acquisition terminal of the lithium battery via the BMS1061. Furthermore, it can also control the closing or opening of the second circuit breaker module 105 via the BMS. This enables the BMS1061 to work collaboratively with the first circuit breaker module 104 and the second circuit breaker module 105, achieving low battery protection to prevent over-discharge and extend battery life. It can also provide fault protection for the lithium battery to prevent damage to the battery and system caused by faults such as overvoltage, overcurrent, and overheating. Real-time monitoring of the battery status by the BMS1061 ensures the safe operation of the power system. Furthermore, the BMS1061 can dynamically adjust the power management strategy according to the battery status to achieve real-time power switching and protection, thereby improving the intelligence level of the system. This is beneficial to improving the safety and lifespan of the power supply, and further, it is beneficial to improving the safety and reliability of the equipment.

[0090] In yet another alternative embodiment, such as Figure 4 As shown, the anti-reverse module 103 includes a first anti-reverse diode 1031 and a second anti-reverse diode 1032, wherein:

[0091] The anode of the first anti-reverse diode 1031 is electrically connected to the first terminal of the first power supply management module 101, the anode of the second anti-reverse diode 1032 is electrically connected to the first terminal of the second power supply management module 102, and the cathodes of both the first anti-reverse diode 1031 and the second anti-reverse diode 1032 are electrically connected to the first terminal of the BMS1061.

[0092] In this optional embodiment, the anti-reverse diode is an electronic component used to prevent current from flowing in the opposite direction. It is usually a regular diode, but it is specifically used in the circuit to prevent current from flowing back from the output terminal to the power module or other sensitive circuit parts. The function of this diode is to ensure that the current can only flow in one direction, thereby protecting the circuit from damage caused by reverse current.

[0093] In this optional embodiment, the reverse-biased diode is further optionally a semiconductor device with unidirectional conductivity. Its basic characteristic is that it allows current to flow freely in one direction (forward conduction) while blocking current in the opposite direction (reverse cutoff). The reverse-biased diode utilizes this characteristic to prevent reverse current flow. For example, when current flows from the anode (positive terminal) to the cathode (negative terminal) of the diode, the diode is in a conducting state, and current can flow smoothly; however, when current flows from the cathode to the anode, the diode is in a cutoff state, and current is blocked and cannot flow.

[0094] In this optional embodiment, the first reverse protection diode 1031 is optionally electrically connected to the first power management module 101 to ensure that the target voltage output by the first power management module 101 is output in the forward direction to the power demand module 106, and the second reverse protection diode 1032 is electrically connected to the second power management module 102 to ensure that the target voltage output by the second power management module 102 is output in the forward direction to the power demand module 106. In this way, the first reverse protection diode 1031 and the second reverse protection diode 1032 can protect the power demand module 106, the lithium battery, the first power management module 101 and the second power management module 102 from damage by reverse current, thereby improving the safety and reliability of the equipment.

[0095] As can be seen, implementing this optional embodiment can ensure that the first target power output from the first power management module and the second target power output from the second power management module flow in the forward direction to the power demand module through the first and second anti-reverse diodes included in the anti-reverse module. This ensures that the current can only flow in one direction, thereby protecting the circuit from damage caused by reverse current. Furthermore, the first and second anti-reverse diodes can prevent reverse current to protect the power module and equipment safety, thus improving the safety of the equipment and battery. In addition, the first and second anti-reverse diodes can prevent the currents of the first and second power management modules from interfering with or damaging each other, which is beneficial to improving the safety and lifespan of the power module, and further improving the safety and reliability of the equipment.

[0096] In yet another alternative embodiment, such as Figure 3As shown, when the device includes a first circuit breaker module 104, the first circuit breaker module 104 includes a miniature circuit breaker 1041, wherein:

[0097] The first terminal of the miniature circuit breaker 1041 is electrically connected to the first terminal of the first power supply management module 101, the second terminal of the miniature circuit breaker 1041 is used to connect to the first voltage, and the third terminal of the miniature circuit breaker 1041 is electrically connected to the third terminal of the BMS1061.

[0098] In this optional embodiment, the settings of the second circuit breaker module 105 are optionally the same as those of the first circuit breaker module 104, and will not be repeated in this embodiment.

[0099] In this optional embodiment, the miniature circuit breaker is a small automatic switching device used for overload and short-circuit protection of a circuit. It achieves circuit on / off control through mechanical means and can also receive external control signals, such as control signals from a BMS module, for remote control.

[0100] In this optional embodiment, when the lithium battery pack has sufficient power and the system is operating normally, the BMS detects that the power level is higher than a preset threshold and sends a control signal to keep the miniature circuit breaker closed. At this time, the first power management module (DC / DC module) obtains high-voltage DC power from the battery pack and converts it into 24V DC power to power the equipment in the high-voltage box. When the BMS detects that the lithium battery power level is lower than or equal to the preset threshold, it generates a control signal to control the miniature circuit breaker to disconnect the electrical connection between the first power management module and the lithium battery. When the miniature circuit breaker receives the control signal, it quickly disconnects the electrical connection between the first power management module and the lithium battery pack to prevent over-discharge of the battery and maintain battery safety. Furthermore, the miniature circuit breaker itself has overload and short-circuit protection functions. When an overload or short circuit occurs in the circuit, the miniature circuit breaker will automatically disconnect, cut off the power supply, and protect the circuit and equipment from damage.

[0101] As can be seen, implementing this optional embodiment enables the microcircuit breaker and the received control signals to perform corresponding operations. When the lithium battery is low in power, the microcircuit breaker can be controlled to disconnect, thereby cutting off the first power management module from the lithium battery. By controlling the microcircuit breaker to quickly disconnect, the battery can be effectively prevented from over-discharging, extending battery life. Furthermore, the microcircuit breaker can promptly disconnect the electrical connection between the lithium battery and the first power management module to protect the lithium battery and equipment from damage, which is beneficial to improving the system's operational safety, reliability, and stability. Moreover, through the intelligent control of the BMS, the connection status between the microcircuit breaker, the first power management module, and the lithium battery can be dynamically managed, which is beneficial to improving the intelligence and automation level of system operation, the intelligence and reliability of power supply, the safety and lifespan of the power module, and ultimately the safety and reliability of the equipment.

[0102] Example 2

[0103] Please see Figure 6 , Figure 6 This is a schematic diagram of a high-voltage box according to an embodiment of the present invention. The high-voltage box includes any of the high-voltage box power supply control devices as described in Embodiment 1. The detection functions achievable by this high-voltage box include, but are not limited to, saving equipment and interface costs. It also enables simultaneous supply of both AC and DC power, improving user convenience and ensuring power supply safety during operation, thus enhancing the safety and stability of the high-voltage box. It should be noted that for a detailed description of the high-voltage box power supply control device, please refer to the specific description in Embodiment 1; this embodiment will not repeat it.

[0104] It is evident that implementation Figure 6 The described high-voltage box can save equipment and interface costs, and can simultaneously supply both AC and DC power, which improves the convenience of using the high-voltage box for users. It can also ensure the safety of power supply during the operation of the high-voltage box, thus improving the safety and stability of the high-voltage box operation.

[0105] The high-voltage box power supply control device and high-voltage box disclosed in the embodiments of this utility model have been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. However, the above preferred embodiments are not intended to limit this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, based on the idea of ​​this utility model, there will be changes in the specific implementation and application scope without departing from the spirit and scope of this utility model. Therefore, the protection scope of this utility model is defined by the scope of the claims.

Claims

1. A high-voltage box power supply control device, characterized in that, The device is used in a high-voltage box, and the device includes a first power supply management module (101), a second power supply management module (102), and an anti-reverse module (103), wherein: The first end of the first power supply management module (101) is electrically connected to the first end of the anti-reverse module (103), the first end of the second power supply management module (102) is electrically connected to the second end of the anti-reverse module (103), the second end of the first power supply management module (101) is used to connect to the first voltage, the second end of the second power supply management module (102) is used to connect to the second voltage, and the third end of the anti-reverse module (103) is used to connect to the power demand module. The first power supply management module (101) is used to convert the received first voltage into the target voltage required by the power demand module; The second power supply management module (102) is used to convert the received second voltage into the target voltage required by the power demand module; The anti-reverse module (103) is used to output the target voltage in the positive direction to the power demand module to supply power to the power demand module.

2. The high-voltage box power supply control device according to claim 1, characterized in that, The device further includes a first circuit breaker module (104), wherein: The first terminal of the first circuit breaker module (104) is electrically connected to the second terminal of the first power supply management module (101), and the second terminal of the first circuit breaker module (104) is used to connect to the first voltage; The first circuit breaker module (104) is used to disconnect or connect the access path between the first power supply management module (101) and the first voltage; and / or, The device further includes a second circuit breaker module (105), wherein: The first end of the second circuit breaker module (105) is electrically connected to the second end of the second power supply management module (102), and the second end of the second circuit breaker module (105) is used to connect to the second voltage; The second circuit breaker module (105) is used to disconnect or connect the access path between the second power supply management module (102) and the second voltage.

3. The high-voltage box power supply control device according to claim 1 or 2, characterized in that, The first power management module (101) includes a DC / DC power module, and / or the second power management module (102) includes an AC / DC power module.

4. The high-voltage box power supply control device according to claim 3, characterized in that, The first voltage is the DC voltage output by the lithium battery, and / or the second voltage is the AC mains voltage.

5. The high-voltage box power supply control device according to claim 1, characterized in that, The device also includes the power demand module (106); The power demand module (106) includes a BMS (1061).

6. The high-voltage box power supply control device according to claim 5, characterized in that, The first terminal of the BMS (1061) is electrically connected to the third terminal of the anti-reverse module (103), and the second terminal of the BMS (1061) is electrically connected to the signal acquisition terminal of the lithium battery. When the device includes the first circuit breaker module (104), the third terminal of the BMS (1061) is electrically connected to the third terminal of the first circuit breaker module (104).

7. The high-voltage box power supply control device according to claim 6, characterized in that, The BMS (1061) is used to control the closing or opening of the first circuit breaker module (104) based on the electrical parameters collected by the signal acquisition terminal of the lithium battery.

8. The high-voltage box power supply control device according to claim 5, 6, or 7, characterized in that, The anti-reverse module (103) includes a first anti-reverse diode (1031) and a second anti-reverse diode (1032), wherein: The anode of the first anti-reverse diode (1031) is electrically connected to the first terminal of the first power management module (101), the anode of the second anti-reverse diode (1032) is electrically connected to the first terminal of the second power management module (102), and the cathodes of the first anti-reverse diode (1031) and the second anti-reverse diode (1032) are both electrically connected to the first terminal of the BMS (1061).

9. The high-voltage box power supply control device according to claim 5, 6, or 7, characterized in that, When the device includes the first circuit breaker module (104), the first circuit breaker module (104) includes a miniature circuit breaker (1041), wherein: The first terminal of the miniature circuit breaker (1041) is electrically connected to the first terminal of the first power management module (101), the second terminal of the miniature circuit breaker (1041) is used to connect to the first voltage, and the third terminal of the miniature circuit breaker (1041) is electrically connected to the third terminal of the BMS (1061).

10. A high-pressure box, characterized in that, The high-voltage box includes the high-voltage box power supply control device as described in any one of claims 1-9.

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