Direct current output module and energy storage device

Abstract

The application discloses a direct-current output module and an energy storage device, and belongs to the technical field of energy storage. The energy storage device comprises a power supply main body for storing electric energy; the power supply main body is provided with a power supply socket; a direct-current output module is connected with the power supply socket, and the direct-current output module comprises a plug, a conversion unit and an interface unit; the conversion unit is arranged in the plug and is used for direct-current voltage conversion; a connecting terminal is arranged on the plug, the connecting terminal is connected with the conversion unit, and the connecting terminal can be plugged into the power supply socket in a pluggable manner, so that the direct-current output module is connected to the power supply main body; and the interface unit is arranged on the plug and is connected with the conversion unit. In this way, when the direct-current output module is damaged during use, the direct-current output module only needs to be replaced, and the energy storage device does not need to be returned to the factory for maintenance, so that the maintenance cost and the maintenance difficulty are reduced. In addition, the direct-current output module can be used as a charging head after being taken out, and one machine is used in multiple ways.

Description

Technical Field

[0001] This application belongs to the field of energy storage technology, specifically relating to a DC output module and energy storage device. Background Technology

[0002] Energy storage devices are a common type of power supply equipment that can charge various electrical appliances using power outlets and provide stable power protection for critical loads. With the development of energy storage devices, their size is becoming increasingly smaller for easy outdoor portability.

[0003] In practical applications, energy storage devices often adopt an integrated design. If some functions are damaged, the entire device needs to be replaced, resulting in high maintenance costs and inconvenience. Utility Model Content

[0004] The purpose of this application is to provide a DC output module and energy storage device that can solve the problems of high maintenance costs and inconvenience in maintaining energy storage devices.

[0005] To achieve the above objectives, in a first aspect, this application provides an energy storage device, comprising: a power supply body for storing electrical energy; the power supply body having a power supply socket; a DC output module connected to the power supply socket, the DC output module including a plug, a conversion unit, and an interface unit; the conversion unit being disposed within the plug for DC voltage conversion; the plug having connection terminals connected to the conversion unit and capable of being plugged into the power supply socket in a pluggable manner, so that the DC output module is connected to the power supply body; and the interface unit being disposed within the plug and connected to the conversion unit.

[0006] In the above technical solution, the DC output module is independently configured, enabling plug-and-play functionality. This means that if the DC output module fails during use, only the module needs to be replaced, eliminating the need to return the entire energy storage device to the factory for repair, thus reducing maintenance costs and complexity. Furthermore, the DC output module can be used as a charging adapter immediately after removal, achieving multi-purpose functionality and avoiding the waste of purchasing additional charging adapters.

[0007] In some technical solutions, the power supply unit optionally includes a battery module and an inverter; the inverter connects the battery module and the power supply socket.

[0008] In the above technical solution, the battery module is used to store electrical energy, and the inverter is used to perform AC-DC conversion.

[0009] In some technical solutions, the plug may optionally include a first side and a second side; wherein the connection terminal is disposed on the first side, the interface unit is disposed on the second side, and the first side and the second side are disposed opposite to each other.

[0010] In the above technical solution, the connecting terminals and the interface unit are located on different sides of the plug, thus avoiding the problem of the interface unit being covered after the connecting terminals are inserted into the power socket, making it difficult for the user to perform the connection operation. The first and second sides are arranged opposite each other, so that when the connecting terminals are inserted into the power socket, the interface unit faces the user, thus facilitating the user's connection operation.

[0011] In some technical solutions, optionally, the power supply body includes a housing; the battery module and inverter are disposed inside the housing; a receiving groove is provided on one side of the housing, and the power supply socket is disposed at the bottom of the receiving groove; wherein, the plug can be inserted into the receiving groove.

[0012] In the above technical solution, on the one hand, the receiving groove can protect the power socket, isolate it from the external environment, and reduce the risk of electric shock; on the other hand, the receiving groove can also limit the plug to a certain extent, thereby preventing it from loosening or falling off due to slight external pulling during use, thus achieving a stable electrical connection.

[0013] In some technical solutions, optionally, when the connection terminal is inserted into the power supply socket, the second side and the outer surface of the housing are coplanar, and the outer surface is provided with a receiving groove; or the energy storage device further includes a protective cover, which is disposed on the housing, and the protective cover can cover the receiving groove or expose the receiving groove; wherein, the protective cover and the outer surface of the housing are coplanar, and the outer surface is provided with a receiving groove.

[0014] In the above technical solution, after the DC output module is installed, the outer surface of the second side and the housing with the receiving groove are coplanar, which makes the appearance smoother. At the same time, the energy storage device also includes a protective cover. By designing the protective cover, after the DC output module is removed, dust, moisture, debris and other impurities can be effectively prevented from entering the receiving groove, so as to protect the internal power supply socket and wiring from corrosion and damage, and reduce the failure rate.

[0015] In some technical solutions, optionally, notches are provided on both sides of the receiving slot. This makes it easier for the user to remove the plug.

[0016] In some technical solutions, optionally, the interface unit includes multiple interfaces; the multiple interfaces have different interface standards; at least one of the multiple interfaces is a Type-C interface; and / or; at least one of the multiple interfaces is a Type-A interface.

[0017] In the above technical solution, by setting different types of interfaces, the interface unit can be adapted to the fast charging protocols supported by different devices, thereby expanding the compatibility of the interface unit to meet the needs of more types of electronic devices.

[0018] In some technical solutions, the energy storage device may optionally include a locking mechanism; the locking mechanism is disposed in the housing or plug; when the connection terminal is inserted into the power supply socket, the locking mechanism applies a locking force to the plug or housing to limit the relative movement between the plug and the housing.

[0019] In practical applications, the locking mechanism is used to limit the position of the plug, thereby preventing the plug from becoming loose or falling off, thus achieving a stable electrical connection and ensuring the stable operation of the energy storage equipment.

[0020] In some technical solutions, the energy storage device may optionally include an operation button connected to a locking mechanism, which actuates the locking mechanism to release the plug from its limit. This design facilitates plug removal.

[0021] Secondly, this application also proposes a DC output module, including: a plug, a conversion unit, and an interface unit; the conversion unit is disposed inside the plug and is used for DC voltage conversion; the plug is provided with a connection terminal and a gripping part, the connection terminal is used to obtain electrical energy, and the connection terminal is connected to the conversion unit; the interface unit is disposed in the plug and is connected to the conversion unit.

[0022] In the above technical solution, the DC output module is independently configured, enabling plug-and-play operation. This means that if the DC output module fails during use, only the module needs to be replaced, eliminating the need to return the entire energy storage device to the factory for repair, thus reducing maintenance costs and complexity. Furthermore, the DC output module can also be used as a charging adapter and connected to an external power source for charging, achieving multiple uses with a single device and avoiding the waste of purchasing a separate charging adapter. Additionally, a grip is designed for easy handling by the user.

[0023] Additional aspects and advantages of the technical solutions of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of the energy storage device provided in the embodiments of this application;

[0025] Figure 2 This is a second schematic diagram of the energy storage device provided in the embodiments of this application;

[0026] Figure 3 This is the third structural schematic diagram of the energy storage device provided in the embodiments of this application;

[0027] Figure 4 This is one of the structural schematic diagrams of the DC output module provided in the embodiments of this application;

[0028] Figure 5This is a state diagram of the DC output module provided in the embodiments of this application being used as a charging head;

[0029] Figure 6 This is a schematic diagram of the power supply body of the energy storage device provided in the embodiments of this application;

[0030] Figure 7 This is a second schematic diagram of the structure of the DC output module provided in the embodiments of this application;

[0031] Figure 8 The fourth schematic diagram of the energy storage device provided in this application embodiment;

[0032] Figure 9 This is a schematic diagram of the structure of the locking assembly and the locking device of the energy storage device provided in the embodiments of this application;

[0033] Figure 10 One of the structural schematic diagrams of the protective cover of the energy storage device provided in the embodiments of this application is shown;

[0034] Figure 11 This is a second schematic diagram of the structure of the protective cover of the energy storage device provided in an embodiment of this application;

[0035] Figure 12 This application shows a schematic diagram of the structure of the receiving tank of the energy storage device provided in an embodiment;

[0036] Figure 13 A schematic diagram of the plug mechanism of the energy storage device provided in the embodiment of this application is shown.

[0037] in, Figures 1 to 13 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0038] 100 Power supply body; 110 Power supply socket; 120 Housing; 122 Receiving slot; 124 Notch slot; 130 Battery module; 140 Inverter; 200 DC output module; 210 Plug; 212 Connection terminal; 214 First side; 216 Second side; 218 Grip part; 220 Conversion unit; 230 Interface unit; 232 Interface; 300 Locking mechanism; 310 Locking part; 320 First elastic part; 330 Snap-fit ​​part; 400 Operation button;

[0039] 500 Socket; 600 Protective cover; 700 Locking mechanism; 710 Locking part; 720 Second elastic part. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0041] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] The DC (Direct Current) output module is a key component for portable energy storage devices to output power. It is responsible for converting the DC power stored inside the energy storage device into a voltage suitable for various electronic devices.

[0043] In related technologies, the DC output modules of energy storage devices are functionally limited, typically possessing only fixed output interfaces and specific output parameters, making them unable to flexibly adjust to the charging needs of different electronic devices. For example, some devices may only support the common 5V / 2A output, which is insufficient for devices requiring higher power charging, such as some fast-charging smartphones or tablets, resulting in slow charging speeds or even failure to charge properly, causing significant inconvenience to users. Furthermore, energy storage devices employ integrated designs, tightly integrating various functional components, but this design suffers from extremely poor scalability; and if any part of the module fails, the interconnectedness and difficulty in separating the components often necessitate the replacement of the entire module. This not only increases user maintenance costs but also wastes resources.

[0044] In view of this, this application provides an energy storage device, including a power supply unit and a DC output module. The power supply unit has a power supply socket. The DC output module includes a plug, a conversion unit, and an interface unit. The plug and the power supply socket are matched and connected to each other in a pluggable manner. In this way, the DC output module connects to the power supply unit in a plug-and-play manner. When the DC output module is damaged during use, it can be directly replaced without having to return the entire energy storage device to the factory for repair, thus reducing maintenance costs and difficulty. Simultaneously, the DC output module can be removed and used as a charging adapter, achieving multi-purpose functionality and avoiding the waste of purchasing additional charging adapters.

[0045] The energy storage devices disclosed in this application can be used as outdoor power sources, home energy storage systems, or various power supply systems that use energy storage devices as backup power sources.

[0046] The following is combined Figures 1 to 13 The DC output module and energy storage device provided in this application will be described in detail through specific embodiments and application scenarios.

[0047] Reference Figure 1 , Figure 2 , Figure 4 and Figure 7 In some embodiments, this application provides an energy storage device, including a power supply body 100 and a DC output module 200. The power supply body 100 is used to store electrical energy and is provided with a power supply socket 110. The DC output module 200 is connected to the power supply socket 110 and includes a plug 210, a conversion unit 220, and an interface unit 230; the conversion unit 220 is disposed inside the plug 210 and is used for DC voltage conversion; the plug 210 is provided with a connection terminal 212, which is connected to the conversion unit 220 and can be plugged into the power supply socket 110 in a pluggable manner to connect the DC output module 200 to the power supply body 100; the interface unit 230 is disposed in the plug 210 and connected to the conversion unit 220.

[0048] The power supply unit 100, as the core component of the energy storage device, primarily functions to store electrical energy and supply power to connected devices when needed. The power supply unit 100 is equipped with a power supply socket 110, serving as a power transmission channel. The power supply socket 110 has specific metal contacts or conductive structures inside, acting as the access point for the DC output module 200 to achieve electrical connection between the power supply unit 100 and the DC output module 200. Specifically, multiple power supply sockets 110 can be provided. For example, multiple power supply sockets 110 may include a positive socket and a negative socket (i.e., a 2-hole socket), and / or, multiple power supply sockets 110 may include a positive socket, a negative socket, and a grounding socket (i.e., a 3-hole socket), which can be configured according to actual usage requirements.

[0049] The DC output module 200 is a key functional component of the energy storage device, primarily responsible for converting the electrical energy stored in the power supply unit 100 into stable DC power for use by external devices. It converts the output voltage of the power supply unit 100 into DC voltages suitable for different devices (such as 5V, 9V, 12V, 20V, etc.). The DC output module 200 includes a plug 210, a conversion unit 220, and an interface unit 230. The conversion unit 220 is the core module of the DC output module 200, used to convert the DC voltage output by the power supply unit 100 into a DC voltage suitable for use by external devices. The plug 210 serves as a connection bridge between the DC output module 200 and the power supply unit 100. Its connection terminals 212 can be plugged into the power supply socket 110 of the power supply unit 100 in a pluggable manner, thereby achieving a physical and electrical connection between the DC output module 200 and the power supply unit 100, enabling the electrical energy stored in the power supply unit 100 to be transferred to the DC output module 200. Interface unit 230 serves as the output interface of DC output module 200, used to connect external devices and output DC power of appropriate voltage after conversion to these devices.

[0050] In the above embodiment, when it is necessary to connect the DC output module 200 to the power supply unit 100, simply insert the connection terminal 212 on the plug 210 into the power supply socket 110 of the power supply unit 100. At this time, the power supply unit 100 and the DC output module 200 are electrically connected, and the DC current stored in the power supply unit 100 flows into the DC output module 200. The conversion unit 220 converts the input DC voltage according to the preset voltage conversion parameters, adjusting the voltage to a value suitable for the operation of the external device. The converted DC current is then output through the interface unit 230 to power the external device connected to the interface unit 230. By setting the DC output module 200 independently and using the connection terminal 212 and the power supply socket 110, plug-and-play functionality is achieved. In this way, when the DC output module 200 is damaged during use, only the DC output module 200 needs to be replaced, without having to return the entire energy storage device to the factory for repair, thereby reducing maintenance costs and difficulty. In addition, the DC output module 200 can be used as a charging head after being removed. Figure 5 The diagram shows the DC output module 200 used in conjunction with the charging head and socket 500, enabling multiple uses with one device and avoiding the waste of purchasing additional charging heads.

[0051] In practical applications, the conversion unit 220 adopts a switching converter topology and supports multi-level voltage output, thereby meeting the power supply requirements of different devices and improving the versatility and compatibility of the DC output module 200.

[0052] A switching converter is a power electronic device that converts an input DC voltage into a desired output voltage by controlling the high-frequency switching of switching transistors (such as MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) and IGBTs (Insulated-Gate Bipolar Transistors)). Topology refers to the connection method of components such as inductors, capacitors, switching transistors, and transformers in a switching converter. Common topologies include boost, buck, buck-boost, flyback, and forward converters. These structures determine the voltage conversion method from input to output, and different topologies are suitable for different application scenarios.

[0053] In some embodiments, the power supply unit 100 includes a battery module 130 and an inverter 140, with the inverter 140 connected to the battery module 130 and the power supply socket 110.

[0054] Battery module 130, as the core energy storage and release unit of the entire energy storage device, includes battery cells, a battery management system (BMS), an energy management system (EMS), and a control system (MCU). The battery management system is crucial for ensuring the safe and reliable operation of the battery cells. It monitors key parameters such as voltage, current, and temperature of the battery cells in real time, and through analysis and processing of this data, it performs functions such as charge / discharge management, equalization control, fault diagnosis, and protection. The energy management system is the "brain" of the energy storage device, responsible for the energy scheduling and optimization management of the entire energy storage system. It communicates with the battery management system and external devices to obtain real-time information on energy generation, storage, and consumption. Based on this information, the energy management system formulates an optimal energy scheduling scheme according to preset strategies and algorithms. The control system is the core component for dynamic power adjustment. It controls the charging and discharging power of battery module 130 based on the energy scheduling scheme formulated by the energy management system and the real-time feedback information from the battery management system. This enables the energy storage device to operate efficiently and stably under different operating conditions, thus providing users with reliable energy security.

[0055] Inverter 140 is used for AC-DC conversion and connects battery module 130 and power supply socket 110. When electricity is needed, battery module 130 releases electrical energy and sends it to inverter 140, which is then output through power supply socket 110.

[0056] In some embodiments, the interface unit 230 includes multiple interfaces 232, which have different interface standards, i.e., different types. Specifically, different types of interfaces 232 differ in physical structure, electrical characteristics, and supported communication protocols. Therefore, by setting different types of interfaces 232, the interface unit 230 can adapt to the fast charging protocols supported by different devices, thereby expanding the compatibility of the interface unit 230 to meet the needs of more types of electronic devices.

[0057] In practical applications, at least one of the multiple interfaces 232 is a Type-C interface, and / or at least one of the multiple interfaces 232 is a Type-A interface.

[0058] Type-C and Type-A interfaces are the mainstream standards in the current electronic device field (such as mobile phones, tablets, laptops, and power banks). The interface unit 230 is equipped with at least one Type-C interface and one Type-A interface, which can seamlessly adapt to the connection needs of mainstream devices, avoid the trouble of conversion caused by interface incompatibility, and effectively improve the compatibility of the interface unit 230.

[0059] In some embodiments, the plug 210 includes a first side 214 and a second side 216. A connection terminal 212 is disposed on the first side 214, and an interface unit 230 is disposed on the second side 216.

[0060] In the above embodiment, the connection terminal 212 and the interface unit 230 are disposed on different sides of the plug 210, thereby avoiding the problem that the interface unit 230 is covered after the connection terminal 212 is inserted into the power supply socket 110, making it difficult for the user to perform the connection operation.

[0061] In practical applications, the first side 214 and the second side 216 are arranged opposite to each other. In this way, when the connection terminal 212 is inserted into the power supply socket 110, the interface unit 230 faces the user, thereby facilitating the user's connection operation.

[0062] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 In some embodiments, the power supply unit 100 includes a housing 120, a battery module 130, and an inverter 140 disposed within the housing 120. A receiving groove 122 is provided on one side of the housing 120, and a power supply socket 110 is disposed at the bottom of the receiving groove 122. A plug 210 can be inserted into the receiving groove 122.

[0063] The housing 120 serves as the external protective structure for the battery module 130, preventing damage from external physical factors such as impacts, pressure, and drops. It also prevents dust, moisture, and other impurities from entering the housing 120, thus avoiding short circuits and other malfunctions in the battery module 130. Specifically, the housing 120 is made of materials including, but not limited to, plastic, metal, and alloys.

[0064] In the above embodiment, the housing 120 is provided with a receiving groove 122 as a space for the power supply socket 110. In actual use, the plug 210 can be embedded in the receiving groove 122, so that the connecting terminal 212 and the power supply socket 110 are connected. On the one hand, the receiving groove 122 can protect the power supply socket 110, so that it is relatively isolated from the external environment and the risk of electric shock is reduced. On the other hand, the receiving groove 122 can also limit the plug 210 to a certain extent, so as to prevent it from loosening or falling off due to slight external force during use, thereby achieving a stable electrical connection.

[0065] In practical applications, when the connection terminal 212 is inserted into the power supply socket 110, that is, after the DC output module 200 is installed, the outer surfaces of the second side 216 and the housing 120 with the receiving groove 122 are coplanar. This design makes the appearance of the equipment more regular.

[0066] Reference Figure 12 In some embodiments, notches 124 are provided on both sides of the receiving groove 122. This makes it convenient for the user to remove the plug 210. Specifically, the notches 124 are semi-circular grooves.

[0067] Reference Figure 1 and Figure 8 In some embodiments, the energy storage device further includes a protective cover 600, which is disposed on the housing 120 and can either cover the receiving slot 122 or expose the receiving slot 122. When the DC output module 200 is removed, the receiving slot 122 is in an open state, at which time dust, moisture, and other foreign objects can easily enter, which will adversely affect the subsequent installation of the power supply socket 110 inside the receiving slot 122 and the DC output module 200. By designing the protective cover 600, the receiving slot 122 can be closed after the DC output module 200 is removed, effectively preventing dust, moisture, debris, etc. from entering the receiving slot 122, thereby protecting the internal power supply socket 110 and wiring from corrosion and damage, and reducing the failure rate.

[0068] It is understood that the protective cover 600 can be connected to the housing 120 using various connection methods such as snap-on, magnetic, sliding, and rotating connections. For example, as... Figure 10As shown, the protective cover 600 and the housing 120 are provided with rotating connection structures such as a pivot and a shaft hole at corresponding positions, so that the protective cover 600 can rotate around the pivot. The user only needs to flip the protective cover 600 to either close the receiving groove 122 or expose the receiving groove 122. Figure 11 As shown, the protective cover 600 and the housing 120 are slidably connected, so that the protective cover 600 can be closed to the receiving groove 122 or exposed by pushing the protective cover 600 in one direction.

[0069] In the above embodiment, the outer surfaces of the protective cover 600 and the housing 120 having a receiving groove 122 are coplanar.

[0070] Reference Figures 1 to 3 In some embodiments, the energy storage device further includes a locking mechanism 300. The locking mechanism 300 is disposed on the housing 120 or the plug 210. When the connection terminal 212 is inserted into the power supply socket 110, the locking mechanism 300 can apply a locking force to the plug 210 or the housing 120 to limit the relative movement between the plug 210 and the housing 120, thereby limiting the plug 210 and preventing it from loosening or falling off due to slight external pulling during use. This ensures a stable electrical connection and guarantees the stable operation of the energy storage device.

[0071] During use, energy storage devices may be affected by external forces such as vibration, which may cause the DC output module 200 to loosen or disconnect. By setting a locking mechanism 300, the connection between the plug 210 and the power supply socket 110 can be strengthened to ensure the stable operation of the energy storage device.

[0072] In practical applications, the locking mechanism 300 is disposed on the housing 120 and includes a locking part 310 and a first elastic part 320. The housing 120 has a mounting groove that communicates with a receiving groove 122. The locking part 310 is slidably disposed within the mounting groove. The first elastic part 320 is connected to the locking part 310 and can push the locking part 310 into the receiving groove 122 to contact the plug 210, thereby limiting the position of the plug 210. It is understood that the locking mechanism 300 can also employ other locking structures, such as snap-fit, magnetic, and threaded mechanisms.

[0073] In some embodiments, the energy storage device further includes an operation button 400, which is connected to a locking mechanism 300 via a transmission structure. By pressing the operation button 400, the locking mechanism 300 can be activated to release the restriction on the plug 210, thereby facilitating the removal of the plug 210.

[0074] In practical applications, the operation button 400 is located on the housing 120.

[0075] Reference Figure 2 and Figure 9 In some embodiments, the energy storage device further includes a locking mechanism 700; the locking mechanism is disposed on the housing 120 or the plug 210, and the locking mechanism 700 and the clamping mechanism 300 are coupled to lock the clamping state of the clamping mechanism 300. In this way, the clamping mechanism 300 is in a locked state and cannot move, thereby preventing it from automatically releasing the clamping force on the plug 210 or the housing 120.

[0076] In the above embodiment, the locking mechanism 700 and the tightening mechanism 300 are coupled to each other. When the locking mechanism 700 and the tightening mechanism 300 are in contact, the clamping state of the tightening mechanism 300 can be locked, which further improves the connection reliability between the plug 210 and the power supply socket 110 and ensures the stable operation of the energy storage device.

[0077] In practical applications, the locking mechanism 700 is disposed on the housing 120, including a locking part 710 and a second elastic part 720; the locking mechanism 300 is provided with a snap-fit ​​part 330 that cooperates with the locking part 710. The locking mechanism 300 is locked by the cooperation of the locking part 710 and the snap-fit ​​part 330.

[0078] Reference Figures 4 to 7 , Figure 13 This application also provides a DC output module 200, which can be connected to an external power source as a charging head to achieve charging, thereby realizing multiple uses of one device and avoiding the waste of purchasing a separate charging head.

[0079] Specifically, the DC output module 200 includes a plug 210, a conversion unit 220, and an interface unit 230. The conversion unit 220 is disposed inside the plug 210 and is used for DC voltage conversion. The plug 210 is provided with a connection terminal 212 and a gripping part 218. The connection terminal 212 is connected to the conversion unit 220 and can be connected to an external power source to obtain electrical energy. The interface unit 230 is disposed in the plug 210 and is connected to the conversion unit 220.

[0080] In the above embodiment, the DC output module 200 is independently configured. It can be connected to the power supply unit 100 via a plug-and-play connection, enabling plug-and-play functionality. This means that if the DC output module 200 fails during use, only the DC output module 200 needs to be replaced, eliminating the need to return the entire energy storage device to the factory for repair, thus reducing maintenance costs and complexity. It can also be used as a charging adapter to connect to an external power source for charging, achieving multiple uses and avoiding the waste of purchasing a separate charging adapter. The grip 218 is designed for easy handling by the user.

[0081] In practical applications, the grip portion 218 includes, but is not limited to, a handle, a pull cord, or a grip hole.

[0082] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0083] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An energy storage device, characterized in that, include: The power supply unit is used to store electrical energy; the power supply unit is equipped with a power supply socket. A DC output module is connected to the power supply socket. The DC output module includes a plug, a conversion unit, and an interface unit. The conversion unit is disposed inside the plug and is used for DC voltage conversion. The plug is provided with a connection terminal, which is connected to the conversion unit and can be plugged into the power supply socket in a pluggable manner so that the DC output module can be connected to the power supply body. The interface unit is disposed in the plug and is connected to the conversion unit.

2. The energy storage device according to claim 1, characterized in that, The power supply unit includes a battery module and an inverter; the inverter connects the battery module and the power supply port.

3. The energy storage device according to claim 2, characterized in that, The plug includes a first side and a second side; wherein the connection terminal is disposed on the first side and the interface unit is disposed on the second side; The first side and the second side are arranged opposite to each other.

4. The energy storage device according to claim 3, characterized in that, The power supply unit includes a housing; the battery module and the inverter are disposed inside the housing; a receiving groove is provided on one side of the housing, and the power supply socket is disposed at the bottom of the receiving groove; The plug can be inserted into the receiving groove.

5. The energy storage device according to claim 4, characterized in that, When the connection terminal is inserted into the power supply socket, the second side surface and the outer surface of the housing are coplanar, and the outer surface is provided with the receiving groove; or The energy storage device also includes a protective cover, which is disposed on the housing and can either cover the receiving groove or expose the receiving groove. The outer surfaces of the protective cover and the housing are coplanar, and the outer surface is provided with the receiving groove.

6. The energy storage device according to claim 5, characterized in that, The receiving groove has notches on both sides.

7. The energy storage device according to claim 1, characterized in that, The interface unit includes multiple interfaces; the interface standards of the multiple interfaces are different; At least one of the plurality of interfaces is a Type-C interface; and / or At least one of the multiple interfaces is a Type-A interface.

8. The energy storage device according to claim 4 or 5, characterized in that, The energy storage device further includes a locking mechanism; the locking mechanism is disposed on the housing or the plug; when the connection terminal is inserted into the power supply socket, the locking mechanism applies a locking force to the plug or the housing to limit the relative movement between the plug and the housing.

9. The energy storage device according to claim 8, characterized in that, The energy storage device also includes an operation button, which is connected to the locking mechanism and is used to drive the locking mechanism to release the limit on the plug.

10. A DC output module, characterized in that, include: A plug, a conversion unit, and an interface unit; the conversion unit is disposed inside the plug and is used for DC voltage conversion; The plug is provided with a connection terminal and a gripping part. The connection terminal is used to obtain electrical energy and is connected to the conversion unit. The interface unit is disposed on the plug and is connected to the conversion unit.

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