Battery device, energy storage device, energy storage system, power utilization device and charging network

Abstract

The invention belongs to the technical field of battery production, and provides a battery device, an energy storage device, an energy storage system, a power utilization device and a charging network, the battery device comprises a battery monomer assembly, a box body, a circuit structure and a fusing assembly, and the box body is provided with an accommodating space; the battery monomer assembly is accommodated in the accommodating space; the circuit structure comprises a wire harness, and the wire harness comprises a plurality of lead bodies electrically connected with the battery monomer assemblies; the fusing assembly comprises a mounting seat and a plurality of fusing parts, and the mounting seat is connected to the box body; any lead body is electrically connected with at least one fusing component. And each fusing component is limited on the mounting seat. The invention aims to reduce the maintenance cost when the fusing assembly is maintained.

Description

Technical Field

[0001] The present application relates to the field of battery production technology, and in particular to a battery device, an energy storage device, an energy storage system, an electrical device and a charging network. Background Art

[0002] The fuse component mainly plays the role of overload protection in the circuit. When the current abnormally rises to a certain height and temperature, the fuse component in the fuse component will melt itself and cut off the current, thereby ensuring the safe operation of the circuit. Fuse components are widely used in the production and manufacturing of battery devices, automobiles, electric vehicles, etc.

[0003] For example, in a battery device, the wiring harness in the circuit structure is usually gathered on a fuse component. When an overcurrent occurs in a certain wire in the wiring harness, the corresponding fuse component will melt. During maintenance, the fuse component needs to be replaced as a whole, which can easily lead to increased maintenance costs. Summary of the invention

[0004] The purpose of the present application is to provide a battery device, an energy storage device, an energy storage system, an electrical device and a charging network, aiming to solve the technical problem of increased maintenance costs caused by the need to replace the fuse component as a whole when the current in the battery device is overloaded.

[0005] In a first aspect, the present application provides a battery device, comprising: A box body having a containing space; A battery cell assembly is accommodated in the accommodation space; The circuit structure includes a plurality of conductors, one end of each conductor being electrically connected to the battery cell assembly; The fuse assembly comprises a mounting seat and a plurality of fuse components. The mounting seat is connected to a box body. At least one fuse component is electrically connected to any one of the conductor bodies. Each fuse component is limited to the mounting seat.

[0006] In the present embodiment, the mounting base plays a role in gathering and integrating the scattered multiple fuse components in the battery device, and forms a modular fuse assembly, which is conducive to the regularization of the internal structure of the battery device; in addition, each conductor in the circuit structure is electrically connected to the fuse component, so that when the battery device is overloaded and circuit-breakered, it is easy to find the cause of the fault, investigate and repair the cause of the fault; during maintenance, only the fused fuse component needs to be removed and replaced, and there is no need to remove the mounting base and other intact fuse components integrated on the mounting base, which is conducive to improving the cycle service life of the mounting base and the unfused fuse components, thereby reducing maintenance costs.

[0007] In one of the embodiments, the fuse component is detachably connected to the wire body.

[0008] In this embodiment, the fuse component is electrically connected to the conductor body and can be detached, so that the fuse component can be replaced more conveniently, which is conducive to improving maintenance efficiency.

[0009] In one embodiment, the fuse element is welded to the wire body.

[0010] In this embodiment, the method of welding the fuse component to the wire body can not only realize the electrical connection between the fuse component and the wire body, but also facilitate the removal of the fuse component from the wire body, which is conducive to improving the convenience of replacing the fuse component.

[0011] In one embodiment, the fuse component has a first connection portion and a second connection portion connected to the corresponding wire body; the fuse assembly also includes an insulating sleeve, which is sleeved on the outer periphery of the fuse component, the first connection portion and the second connection portion.

[0012] In this embodiment, an insulating sleeve is added to prevent short circuits between adjacent fuse components and adjacent wire bodies, and prevent short circuits between the fuse components and the wire bodies and the mounting base, etc., thereby improving the reliability of the fuse components during use.

[0013] In one of the embodiments, the insulating sleeve is shrinkable and deformable.

[0014] In this embodiment, the insulating sleeve that can shrink and deform facilitates the fitting and wrapping of the fuse component, the first connecting part and the second connecting part, and can simultaneously achieve welding and fixation between the wire body and the fuse component when heated and shrunk, which is conducive to saving process steps, making operation more convenient and improving work efficiency.

[0015] In one embodiment, the fuse component has a first end and a second end, and the first end and the second end are both connected to a supporting structure for accommodating flux, and each supporting structure is electrically connected to a corresponding wire body.

[0016] In this embodiment, a supporting structure is provided on the fuse component, and more flux is contained in the supporting structure, which is beneficial to improving the welding effect between the fuse component and the wire body.

[0017] In one embodiment, the supporting structure includes a plurality of supporting arms, which extend from the fuse component in different directions away from the fuse component in a gradually expanding shape, so that a clamping space is formed between the plurality of supporting arms, and the clamping space is used to accommodate flux.

[0018] In this embodiment, a plurality of supporting arms extend outward from the fuse component to form a diffuse shape, and the flux can be supported between two adjacent supporting arms, which has a simple structure and is easy to manufacture.

[0019] In one embodiment, the fuse assembly further includes a first limiting component, and the first limiting component is connected between the fuse component and the wire body.

[0020] In this embodiment, the first limiting component is used to limit the wire body on the fuse component. When the wire body is connected to the fuse component, it is beneficial to reduce the shaking of the wire body relative to the fuse component, which is beneficial to improve the connection firmness between the wire body and the fuse component, and improve the reliability of the connection between the wire body and the fuse component.

[0021] In one embodiment, the wire body includes a first wire segment and a second wire segment, and the fuse component is electrically connected between the first wire segment and the second wire segment; the first limiting component includes a first limiting structure and a second limiting structure, the first limiting structure is connected between the fuse component and the first wire segment, and the second limiting structure is connected between the fuse component and the second wire segment.

[0022] In this embodiment, by providing the first limiting structure and the second limiting structure, the two positions where the wire body is connected to the fuse component are both limited and fixed, which is beneficial to improving the reliability of the connection between the wire body and the fuse component.

[0023] In one embodiment, the battery device further includes a second limiting component connected to the mounting seat, and the second limiting component is connected to each wire body to limit each wire body on the mounting seat.

[0024] In this embodiment, the second limiting component is used to limit each wire body on the mounting seat, which is beneficial to reduce the shaking of each wire body relative to the mounting seat, reduce the risk of breakage at the connection position between each wire body and the fuse component, and improve the reliability of the connection between each wire body and the fuse component.

[0025] In one embodiment, the wire body includes a first wire segment and a second wire segment, and the fuse component is electrically connected between the first wire segment and the second wire segment; the second limiting component includes a third limiting structure and a fourth limiting structure both connected to the mounting seat, the third limiting structure is connected to each first wire segment, and the fourth limiting structure is connected to each second wire segment.

[0026] In this embodiment, by providing the third limiting structure and the fourth limiting structure, the two positions of each wire body connected to the fuse component are limited and fixed, which is beneficial to improving the reliability of the connection between the wire body and the fuse component.

[0027] In one embodiment, the fuse component is a fuse.

[0028] In this embodiment, the fuse is welded to the conductor body, which can not only realize the electrical connection between the fuse and the conductor body, but also facilitate the removal of the fuse from the conductor body, which is conducive to improving the convenience of replacing the fuse. In addition, the cost of the fuse is low, which is conducive to reducing maintenance costs.

[0029] In one embodiment, the fuse component is an etched fuse.

[0030] In this embodiment, the fuse component adopts an etched fuse, which can be recycled by repeated etching. There is no need to repeatedly replace the entire fuse component, which is more convenient to use and helps to reduce maintenance costs.

[0031] In one embodiment, the fuse assembly further includes a support base, and the etched fuse is connected to the support base.

[0032] In this embodiment, the support base is provided to achieve installation and support of the etching fuse, thereby improving the installation stability of the etching fuse and facilitating welding of the etching fuse and the wire body.

[0033] In one embodiment, the mounting base includes a first shell and a second shell connected to the first shell, the first shell and the second shell together form a receiving channel, each wire body is inserted into the receiving channel, and the fuse component is received in the receiving channel; the first shell and / or the second shell are connected to the box body.

[0034] In this embodiment, the mounting seat adopts a shell-like structure, and is connected to the second shell through the first shell, so as to form an accommodating channel, so that the fuse component is accommodated in the accommodating channel, and the mounting seat plays a protective role on the fuse component.

[0035] In a second aspect, the present application provides an energy storage device, comprising a plurality of battery devices as described above, the battery devices being used to store or provide electrical energy.

[0036] In a third aspect, the present application provides an energy storage system, including a power conversion device and the above-mentioned energy storage device, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0037] In a fourth aspect, the present application provides an electrical device, comprising any of the above-mentioned battery devices, the above-mentioned energy storage devices or the above-mentioned energy storage systems, wherein the battery device is used to store or provide electrical energy.

[0038] In a fifth aspect, the present application provides a charging network, including a charging pile and the above-mentioned energy storage device or the above-mentioned energy storage system, wherein the energy storage device is used to provide electrical energy for the charging pile.

[0039] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0041] Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application; Figure 2 A schematic diagram of the exploded structure of a battery device provided in some embodiments of the present application; Figure 3 A schematic diagram of a partial internal structure of a battery device provided in some embodiments of the present application; Figure 4 A schematic diagram of the structure of a fuse assembly in a battery device provided in some embodiments of the present application; Figure 5 for Figure 4 Schematic diagram of the decomposition structure; Figure 6 A schematic diagram of a structure in which a fuse component is connected to a wire body in a battery device provided in some embodiments of the present application; Figure 7 Schematic diagram of the structure of the connection between the fuse component, the wire body and the insulating sleeve in the battery device provided in some embodiments of the present application Figure 1 ; Figure 8 for Figure 7 Schematic diagram of the decomposition structure; Fig. 9 Schematic diagram of the structure of the connection between the fuse component, the wire body and the insulating sleeve in the battery device provided in some embodiments of the present application Figure 2 ; Fig.10 Schematic diagram of the structure of the connection between the fuse component, the wire body and the insulating sleeve in the battery device provided in some embodiments of the present application Figure 3 ; Fig.11 Schematic diagram of the structure of the connection between the fuse component, the wire body and the insulating sleeve in the battery device provided in some embodiments of the present application Figure 4 .

[0042] Description of reference numerals: 1000, vehicle; 1100, battery device; 1110, housing; 1111, first part; 1112, second part; 1113, accommodation space; 1120, battery cell assembly; 1130, wiring harness; 1131, wire body; 11311, first wire segment; 11312, second wire segment; 1140, fuse assembly; 1141, fuse component; 11411, metal wire; 11412, etching substrate; 11413, pad; 11414, insulating glue; 11415, first end; 11416, second end; 1142, mounting seat; 114 21. First shell; 11422. Second shell; 11423. Accommodating channel; 1143. Insulating sleeve; 1144. Supporting structure; 1145. Supporting arm; 1146. Clamping space; 1147. First limiting component; 11471. First limiting structure; 11472. Second limiting structure; 1148. Second limiting component; 11481. Third limiting structure; 11482. Fourth limiting structure; 1149. Support seat; 1150. First connecting part; 1160. Second connecting part; 1170. Flux; 1200. Controller; 1300. Motor. DETAILED DESCRIPTION

[0043] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only examples, and cannot be used to limit the scope of protection of the present application.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0045] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0046] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0047] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0049] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] A battery device may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells, which are connected in series, in parallel, or in mixed connection through a busbar.

[0052] The battery device may be a battery pack, which generally includes a box and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the box.

[0053] A circuit structure is provided in the battery device, through which current is transmitted. The circuit structure can be referred to as a circuit. The fuse component mainly plays the role of overload protection in the circuit structure. For example, when the current abnormally rises to a certain height and temperature, the fuse component in the fuse component will melt itself and cut off the current, thereby ensuring the safe operation of the circuit. Fuse components are widely used in the production and manufacturing of battery devices, automobiles, electric vehicles, etc.

[0054] For example, in a battery device, the circuit structure includes a large number of wires, which are gathered to form a wiring harness. The wiring harness in the circuit structure is usually gathered on a fuse component. When an overcurrent occurs in a wire in the wiring harness, the corresponding fuse component melts and the entire fuse component needs to be replaced, which can easily lead to increased maintenance costs.

[0055] Therefore, the present application provides a battery device, in which each conductor in the wiring harness of the battery device is electrically connected or connected in series with at least one fuse component, and each fuse component is limited on a mounting seat, so that the mounting seat and each fuse component form an integral fuse assembly. The fuse assembly can be understood as a fuse integrated module. When the current is overloaded on a certain circuit, the fuse component on the corresponding conductor body will fuse. During maintenance, only the corresponding fuse component that has blown needs to be replaced without affecting the use of the fuse components on other circuits, and there is no need to replace the mounting seat. Maintenance is convenient and helps to reduce maintenance costs.

[0056] Specifically, refer to Figure 2 As shown, an embodiment of the present application provides a battery device 1100, which includes one or more battery cell assemblies 1120. The battery device 1100 disclosed in the embodiment of the present application can be used in an electrical device that uses the battery device 1100 as a power source or various energy storage devices and energy storage systems that use the battery device 1100 as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a portable device, a laptop computer, an electric toy, an electric tool, a battery car, a vehicle, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, and the like.

[0057] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0058] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 1100 is provided inside the vehicle 1000, and the battery device 1100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 1100 may be used to power the vehicle 1000, for example, the battery device 1100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 1200 and a motor 1300, and the controller 1200 is used to control the battery device 1100 to power the motor 1300, for example, for the starting, navigation and working power requirements of the vehicle 1000 during driving.

[0059] In some embodiments of the present application, the battery device 1100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0060] Please refer to Figure 2 As shown, Figure 2 A schematic diagram of the exploded structure of a battery device 1100 provided for some embodiments of the present application. The battery device 1100 includes a housing 1110 and a battery cell assembly 1120. A housing space 1113 is formed in the housing 1110. The battery cell assembly 1120 is accommodated in the housing space 1113. The battery cell assembly 1120 is often formed by arranging a plurality of battery cells, or the battery cell assembly 1120 can also be a battery module (Battery Module), which is an independent module formed by arranging and fixing a plurality of battery cells. As an example, a battery module can be formed by bundling a plurality of battery cells by cable ties. Among them, the housing 1110 is used to provide an accommodating space 1113 for the battery cell assembly 1120, and the housing 1110 can adopt a variety of structures.

[0061] A battery cell refers to the smallest unit constituting the battery device 1100. Each battery cell may be a secondary battery cell or a primary battery cell; it may also be a lithium-sulfur battery cell, a sodium-ion battery cell or a magnesium-ion battery cell, but is not limited thereto. The battery cell may be cylindrical, flat, rectangular or in other shapes.

[0062] According to some embodiments of the present application, referring to Figure 3-6As shown, an embodiment of the present application provides a battery device 1100, which includes a battery cell assembly 1120, a box 1110, a circuit structure and a fuse assembly 1140, wherein the box 1110 has a accommodating space 1113; the battery cell assembly 1120 is accommodated in the accommodating space 1113; the circuit structure includes a wiring harness 1130, and the wiring harness 1130 includes a plurality of wire bodies 1131 electrically connected to the battery cell assembly 1120; the fuse assembly 1140 includes a mounting seat 1142 and a plurality of fuse components 1141, and the mounting seat 1142 is connected to the box 1110; at least one fuse component 1141 is electrically connected to any one of the wire bodies 1131; and each fuse component 1141 is limited to the mounting seat 1142.

[0063] Among them, for the box 1110, refer to Figure 2 As shown, the box 1110 is used to accommodate the battery cell assembly 1120, so the box 1110 may include a first part 1111 and a second part 1112, the first part 1111 and the second part 1112 cover each other, and the first part 1111 and the second part 1112 jointly define a storage space 1113 for accommodating the battery cell assembly 1120. The second part 1112 may be a hollow structure with one end open, and the first part 1111 may be a plate-like structure, and the first part 1111 covers the open side of the second part 1112, so that the first part 1111 and the second part 1112 jointly define the storage space 1113; the first part 1111 and the second part 1112 may also be hollow structures with one side open, and the open side of the first part 1111 covers the open side of the second part 1112. Of course, the box 1110 formed by the first part 1111 and the second part 1112 may be in various shapes, such as a cylinder, a cuboid, etc.

[0064] As for the circuit structure, the circuit structure can be understood as a line structure. The battery cell assembly 1120 transmits current through the circuit structure, thereby realizing the charging and discharging of the battery device 1100. The circuit structure can also be electrically connected to the control part inside the battery device 1100 to transmit electricity, so that the control part can work normally. Therefore, it can be known that the circuit structure includes a wiring harness 1130, and the wiring harness 1130 includes a plurality of wire bodies 1131. One end of the wire body 1131 is electrically connected to the battery cell assembly 1120, wherein the electrical connection includes direct electrical connection and indirect electrical connection. The other end of the wire body 1131 is connected to the output port of the battery device 1100, and the output port is used to be electrically connected to an external electrical component. The other end of the wire body 1131 can also be electrically connected to a control component or a detection component inside the battery device 1100. Multiple wire bodies 1131 can be gathered together to form a wiring harness 1130.

[0065] For the fuse assembly 1140, the fuse component 1141 is used to play a role of melting when the current on the wire body 1131 is overloaded, so the fuse component 1141 is electrically connected to each wire body 1131. The electrical connection here should be understood as a series connection. The fuse component 1141 needs to be connected in series with the wire body 1131 to play a role of overcurrent protection; the fuse component 1141 can be a simple wire-like, sheet-like or tubular structure. The fuse component 1141 can also adopt components such as fuses with complex structures. The fuse component 1141 has at least a metal part that can melt. Among them, the mounting seat 1142 is used to support the fuse component 1141 and limit the fuse component 1141 on the mounting seat 1142. It can be understood that since the fuse component 1141 is connected to the wire body 1131, the method of limiting the fuse component 1141 on the mounting seat 1142 may include limiting the wire body 1131 on the mounting seat 1142, thereby indirectly limiting the fuse component 1141 and the mounting seat 1142.

[0066] For the mounting seat 1142, the mounting seat 1142 can be a solid structure or a hollow structure. For example, if the mounting seat 1142 is a solid structure, the fuse component 1141 can be connected to the surface of the mounting seat 1142 or a groove opened on the surface. For another example, if the mounting seat 1142 is a hollow structure, the fuse component 1141 can be accommodated in the hollow cavity of the mounting seat 1142. It can be seen that the mounting seat 1142 plays a role in gathering and integrating multiple fuse components 1141, so that the scattered multiple fuse components 1141 are assembled with the mounting seat 1142 to form a fuse integrated module. The mounting seat 1142 is connected to the box body 1110, and the mounting seat 1142 and the box body 1110 can be connected in a detachable manner. For example, the mounting seat 1142 and the box body 1110 are connected by a fastening assembly to facilitate the installation and removal of the mounting seat 1142.

[0067] During the charging and discharging process of the battery device 1100, if an overload occurs, the circuit structure will be broken and the battery device 1100 will not work normally. At this time, it is necessary to check the fuse assembly 1140. If it is found that one or more fuse components 1141 in the fuse assembly 1140 are blown, the maintenance personnel can simply replace the blown fuse component 1141 without replacing other intact fuse components 1141 and mounting base 1142.

[0068] In the present embodiment, the mounting base 1142 gathers and integrates the scattered multiple fuse components 1141 in the battery device 1100, and forms a modular fuse assembly 1140, which is conducive to the regularization of the internal structure of the battery device 1100; in addition, each wire body 1131 in the circuit structure is electrically connected to the fuse component 1141, so that when the battery device 1100 is overloaded and circuit-breakered, it is easy to find the cause of the fault, and to investigate and repair the cause of the fault; during maintenance, only the fused fuse component 1141 needs to be removed and replaced, and there is no need to remove the mounting base 1142 and other intact fuse components 1141 integrated on the mounting base 1142, which is conducive to improving the cycle service life of the mounting base 1142 and the unfused fuse components 1141, thereby reducing the maintenance cost.

[0069] In some embodiments, the fuse component 1141 is detachably connected to the wire body 1131 .

[0070] The detachable connection between the fuse component 1141 and the wire body 1131 means that the fuse component 1141 can be easily separated from the wire body 1131 after the fuse component 1141 is fused, wherein the detachable connection between the fuse component 1141 and the wire body 1131 includes that the fuse component 1141 and the wire body 1131 are detachably connected by a combination of one or more limiting structures such as a buckle structure, a binding structure, and an elastic tightening rope, or the fuse component 1141 and the wire body 1131 are detachably connected. 1 can be additionally provided with a limiting structure on the outside, so that when the fuse component 1141 and the wire body 1131 are both assembled on the limiting structure, the fuse component 1141 and the wire body 1131 are in contact with each other and are limited on the limiting structure, thereby achieving contact and electrical conduction between the fuse component 1141 and the wire body 1131 and facilitating the disassembly of the fuse component 1141 and the wire body 1131. For example, the limiting structure limits the fuse component 1141 and the wire body 1131 through a groove structure or a hole structure.

[0071] In one possible embodiment, the fuse component 1141 and the wire body 1131 can also be electrically connected by plugging. For example, the fuse component 1141 has a first plug-in structure, and the wire body 1131 has a second plug-in structure. The first plug-in structure and the second plug-in structure are plugged in and electrically connected at the same time.

[0072] In this embodiment, the fuse component 1141 is electrically connected to the wire body 1131 and is also detachable, so that the fuse component 1141 is more convenient to replace, which is conducive to improving maintenance efficiency.

[0073] In some embodiments, reference Figure 5 , Figure 6 , Fig.10 as well as Fig.11As shown, the fuse component 1141 is welded to the wire body 1131 .

[0074] Specifically, the fuse component 1141 is a conductor made of a metal material, and the fuse component 1141 can be in a linear, sheet or other shape. For example, the fuse component 1141 can be a fuse wire, which is connected in series to the conductor body 1131. Both ends of the fuse wire are respectively welded to the conductor body 1131. The welding position has a welding pad 11413, and the outside of the welding position can be coated with an insulating glue 11414. The welding material can be selected from solder paste, etc.

[0075] When the fuse component 1141 blows and needs to be replaced, it is only necessary to heat the welding position between the fuse component 1141 and the wire body 1131 to melt the solder paste, and the fuse component 1141 can be separated from the wire body 1131. Therefore, this welding method can also be understood as a detachable connection; alternatively, the wire body 1131 can be directly cut off at a position close to the welding position, so that the fuse component 1141 is separated from the wire body 1131, and the new end of the wire body 1131 formed after cutting can be re-soldered with the replaced fuse component 1141.

[0076] In this embodiment, the method of welding the fuse component 1141 and the wire body 1131 can not only realize the electrical connection between the fuse component 1141 and the wire body 1131, but also facilitate the removal of the fuse component 1141 from the wire body 1131, which is conducive to improving the convenience of replacing the fuse component 1141.

[0077] In some embodiments, reference Figure 6-8 As shown, the fuse component 1141 has a first connection portion 1150 and a second connection portion 1160 formed by connecting with the corresponding wire body 1131; the fuse assembly 1140 also includes an insulating sleeve 1143, which is sleeved on the outer periphery of the fuse component 1141, the first connection portion 1150 and the second connection portion 1160.

[0078] Since the fuse component 1141 is connected in series to the wire body 1131, there are two connection positions between the fuse component 1141 and the wire body 1131, and the two connection positions can form a first connection part 1150 and a second connection part 1160. When the fuse component 1141 and the wire body 1131 are welded, the first connection part 1150 and the second connection part 1160 can also be welding parts.

[0079] The insulating sleeve 1143 may adopt a hollow thin-wall structure, and the insulating sleeve 1143 has insulating properties. The insulating sleeve 1143 may be made of plastic, rubber, silicone and other materials. The insulating sleeve 1143 may adopt a rigid sleeve or a flexible sleeve, or the insulating sleeve 1143 may also adopt a membrane structure.

[0080] The insulating sleeve 1143 is used to insulate the fuse component 1141 and the position where the fuse component 1141 is connected to the wire body 1131. Therefore, the insulating sleeve 1143 is sleeved on the outer periphery of the fuse component 1141, the first connecting part 1150 and the second connecting part 1160, so that the insulating sleeve 1143 insulates and protects the fuse component 1141 and the exposed position where the fuse component 1141 is connected to the wire body 1131, so that it is not easy for short circuit to occur between adjacent fuse components 1141 and adjacent wire bodies 1131, and it is not easy for short circuit to occur between the fuse component 1141 and the wire body 1131 and the mounting seat 1142 and external components.

[0081] In this embodiment, an insulating sleeve 1143 is added to prevent short circuits between adjacent fuse components 1141 and adjacent wire bodies 1131, and prevent short circuits between fuse components 1141 and wire bodies 1131 and mounting base 1142, etc., thereby improving the reliability of fuse components 1141 during use.

[0082] In some embodiments, the insulating sleeve 1143 is shrinkable and deformable.

[0083] Specifically, the shrinkage deformation of the insulating sleeve 1143 can be an active deformation. For example, the insulating sleeve 1143 is an elastic insulating pipe. After the insulating sleeve 1143 is elastically expanded and sleeved on the periphery of the fuse component 1141, the first connecting part 1150 and the second connecting part 1160, the insulating sleeve 1143 itself elastically shrinks and then wraps around the periphery of the fuse component 1141, the first connecting part 1150 and the second connecting part 1160.

[0084] The shrinkage deformation of the insulating sleeve 1143 can also be a passive deformation. For example, the insulating sleeve 1143 elastically shrinks when subjected to temperature changes. For example, when the insulating sleeve 1143 is heated, the insulating sleeve 1143 shrinks and then wraps around the outer periphery of the fuse component 1141, the first connection portion 1150 and the second connection portion 1160. In this case, a flux 1170 (for example, solder paste) is placed at the position where the wire body 1131 is connected to the fuse component 1141. When the insulating sleeve 1143 is heated, the insulating sleeve 1143 can not only wrap the fuse component 1141, the first connection portion 1150 and the second connection portion 1160, but also melt the flux 1170, so that the fuse component 1141 and the wire body 1131 can be welded at the same time, thereby realizing the electrical connection and fixation of the fuse component 1141 and the wire body 1131.

[0085] In the present embodiment, the insulating sleeve 1143 that can shrink and deform facilitates the fitting and wrapping of the fuse component 1141, the first connecting part 1150 and the second connecting part 1160, and can simultaneously achieve welding and fixation between the wire body 1131 and the fuse component 1141 when heated and shrunk, which is beneficial to saving process steps, making operation more convenient and improving work efficiency.

[0086] In some embodiments, reference Figure 6 and Figure 8 As shown, the fuse component 1141 has a first end 11415 and a second end 11416 , and the first end 11415 and the second end 11416 are both connected to a supporting structure 1144 for accommodating the flux 1170 , and each supporting structure 1144 is electrically connected to the corresponding wire body 1131 .

[0087] Since the fuse component 1141 is connected in series to the wire body 1131, it can be known that the wire body 1131 is divided into two sections, namely the first wire segment 11311 and the second wire segment 11312, and the fuse component 1141 is electrically connected to the first wire segment 11311 and the second wire segment 11312 respectively. Specifically, the fuse component 1141 has a first end 11415 and a second end 11416, and the first end 11415 and the second end 11416 are respectively connected to the supporting structure 1144, and the supporting structure 1144 can be assembled and connected with the first end 11415 and the second end 11416 respectively. The supporting structure 1144 can also be a part of the fuse component 1141, that is, the supporting structure 1144 can be an integrally formed structure with the fuse component 1141. The supporting structure 1144 is used to accommodate the flux 1170 and can increase the volume of the filled flux 1170, so as to ensure the welding amount when the fuse component 1141 is welded to the wire body 1131, and improve the welding effect between the fuse component 1141 and the wire body 1131. The supporting structure 1144 is a conductive metal structure, and the supporting structure 1144 can be made of the same material as the fuse component 1141.

[0088] Specifically, the first wire segment 11311 has a first conductive end, and the second wire segment 11312 has a second conductive end. The first conductive end is connected to the supporting structure 1144 of the first end 11415, and the second conductive end is connected to the supporting structure 1144 on the second end 11416. Heat is applied to melt the weld, thereby welding and fixing the first conductive end and the second conductive end to the supporting structure 1144 respectively.

[0089] In this embodiment, a supporting structure 1144 is provided on the fuse component 1141 , and more flux 1170 is contained in the supporting structure 1144 , thereby facilitating improving the welding effect between the fuse component 1141 and the wire body 1131 .

[0090] In some embodiments, reference Figure 6 and Figure 8 As shown, the supporting structure 1144 includes a plurality of supporting arms 1145 , which extend from the fuse component 1141 in different directions away from the fuse component 1141 in a gradually expanding shape, so that a clamping space 1146 is formed between the plurality of supporting arms 1145 , and the clamping space 1146 is used to accommodate the flux 1170 .

[0091] Specifically, the supporting arms 1145 may be in the shape of a sheet or a column, etc., and the surfaces of the multiple supporting arms 1145 with the fuse component 1141 extend in the direction away from the fuse component 1141, and the extension directions of the multiple supporting arms 1145 are different, so that the multiple supporting arms 1145 extend in a gradually expanding shape, and the gradually expanding shape can be understood as a divergent shape. The multiple supporting arms 1145 gradually expand and extend divergently due to the positions where the fuse component 1141 is connected, so that an angle is formed between adjacent supporting arms 1145, and a clamping space 1146 is formed between two adjacent supporting arms 1145. The clamping space 1146 is used to accommodate flux 1170, and the flux 1170 is heated to melt the flux 1170 and then weld the fuse component 1141 to the wire body 1131. A plurality of supporting arms 1145 may be provided, for example, two supporting arms 1145 are provided, the two supporting arms 1145 are arranged perpendicularly or cross at an acute angle, and a clamping space 1146 is formed between the two supporting arms 1145. For another example, four supporting arms 1145 are provided, the four supporting arms 1145 all cross at one point of the fuse component 1141, and two adjacent supporting arms 1145 are arranged perpendicularly, so that the outer part of the supporting structure 1144 is in a cross shape as a whole. When the fuse component 1141 is linear, the two supporting structures 1144 are respectively connected to the two ends of the fuse component 1141.

[0092] In this embodiment, a plurality of supporting arms 1145 extend outward from the fuse component 1141 to form a diffuse shape, and the flux 1170 can be supported between two adjacent supporting arms 1145 , which has a simple structure and is easy to manufacture.

[0093] In some embodiments, reference Figure 9-11 As shown, the fuse assembly 1140 further includes a first limiting component 1147 , and the first limiting component 1147 is connected between the fuse component 1141 and the wire body 1131 .

[0094] Specifically, the first limiting component 1147 is used to limit the position between the wire body 1131 and the fuse component 1141, so that the wire body 1131 can be fixed relative to the fuse component 1141, thereby reducing the relative movement of the wire body 1131 when connecting (or welding) with the fuse component 1141, and making it easier to connect (or weld) the wire body 1131 and the fuse component 1141.

[0095] The first limiting component 1147 may adopt a clamping structure, for example, the clamping structure can be tightened or expanded circumferentially, and the connection position between the wire body 1131 and the fuse component 1141 can be clamped in the clamping structure, so that the position of the fuse component 1141 relative to the wire body 1131 is fixed, and a soldering pad 11413 can be provided on the clamping structure, so that the wire body 1131 and the fuse component 1141 can be connected or welded at the position of the clamping structure. The clamping structure can adopt a metal conductive structure.

[0096] In the present embodiment, the first limiting component 1147 is used to limit the wire body 1131 on the fuse component 1141. When the wire body 1131 is connected to the fuse component 1141, it is beneficial to reduce the shaking of the wire body 1131 relative to the fuse component 1141, which is beneficial to improve the connection firmness between the wire body 1131 and the fuse component 1141, and improve the reliability of the connection between the wire body 1131 and the fuse component 1141.

[0097] In some embodiments, reference Figure 9-11 As shown, the wire body 1131 includes a first wire segment 11311 and a second wire segment 11312, and the fuse component 1141 is electrically connected between the first wire segment 11311 and the second wire segment 11312; the first limiting component 1147 includes a first limiting structure 11471 and a second limiting structure 11472, the first limiting structure 11471 is connected between the fuse component 1141 and the first wire segment 11311, and the second limiting structure 11472 is connected between the fuse component 1141 and the second wire segment 11312.

[0098] Specifically, since the fuse component 1141 is connected in series to the wire body 1131, it can be known that the wire body 1131 includes two parts, namely the first wire segment 11311 and the second wire segment 11312, and the fuse component 1141 is electrically connected to the first wire segment 11311 and the second wire segment 11312. Therefore, by providing the first limiting structure 11471 and the second limiting structure 11472, the first wire segment 11311 is limited on the fuse component 1141 through the first limiting structure 11471, and the second wire segment 11312 is also limited on the fuse component 1141 through the second limiting structure 11472.

[0099] Similarly, the first limiting structure 11471 and the second limiting structure 11472 can both adopt a clamping structure, for example, the clamping structure can be tightened or expanded circumferentially, and the connection position of the first wire segment 11311 and the fuse component 1141 as well as the connection position of the second wire segment 11312 and the fuse component 1141 can be clamped in the corresponding clamping structure, so that the position of the fuse component 1141 is fixed relative to the first wire segment 11311 and the second wire segment 11312, and then the first wire segment 11311 and the fuse component 1141 as well as the second wire segment 11312 and the fuse component 1141 are connected or welded at the position of the clamping structure, and the clamping structure can adopt a metal conductive structure.

[0100] In this embodiment, by providing a first limiting structure 11471 and a second limiting structure 11472 , the two positions of the wire body 1131 connected to the fuse component 1141 are limited and fixed, which is beneficial to improving the reliability of the connection between the wire body 1131 and the fuse component 1141 .

[0101] In some embodiments, reference Figure 4 and Figure 5 As shown, the battery device 1100 further includes a second limiting component 1148 connected to the mounting seat 1142 . The second limiting component 1148 is connected to each wire body 1131 to limit each wire body 1131 on the mounting seat 1142 .

[0102] The second limiting component 1148 is used to limit each wire body 1131 so that each wire body 1131 can be fixed relative to the mounting seat 1142, thereby reducing the impact of the movement of each wire body 1131 on the firmness of the connection position between the wire body 1131 and the fuse component 1141.

[0103] The second limiting component 1148 may include a buckle structure, a tie structure, an elastic rope structure, etc., so that each wire body 1131 and the mounting seat 1142 can be flexibly disassembled and used more conveniently.

[0104] In this embodiment, the second limiting component 1148 is used to limit each wire body 1131 on the mounting seat 1142, which helps to reduce the shaking of each wire body 1131 relative to the mounting seat 1142, reduce the risk of breakage at the connection position between each wire body 1131 and the fuse component 1141, and improve the reliability of the connection between each wire body 1131 and the fuse component 1141.

[0105] In some embodiments, reference Figure 4 and Figure 5As shown, each wire body 1131 includes a first wire segment 11311 and a second wire segment 11312, and the fuse component 1141 is electrically connected between the first wire segment 11311 and the second wire segment 11312; the second limiting component 1148 includes a third limiting structure 11481 and a fourth limiting structure 11482 both connected to the mounting seat 1142, the third limiting structure 11481 is connected to each first wire segment 11311, and the fourth limiting structure 11482 is connected to each second wire segment 11312.

[0106] Specifically, since the fuse component 1141 is connected in series to the wire body 1131, it can be known that each wire body 1131 includes two parts, namely the first wire segment 11311 and the second wire segment 11312, and the fuse component 1141 is electrically connected to the first wire segment 11311 and the second wire segment 11312. Since each first wire segment 11311 and each second wire segment 11312 are connected to the mounting seat 1142, by providing the third limiting structure 11481 and the fourth limiting structure 11482, each first wire segment 11311 is fixed to the mounting seat 1142 through the third limiting structure 11481, and each second wire segment 11312 is fixed to the mounting seat 1142 through the fourth limiting structure 11482.

[0107] Similarly, the third limiting structure 11481 and the fourth limiting structure 11482 can both adopt a snap structure, a tie structure, an elastic rope structure, etc., so that the wire body 1131 and the mounting seat 1142 can be flexibly disassembled and used more conveniently.

[0108] In this embodiment, by providing a third limiting structure 11481 and a fourth limiting structure 11482, the two positions of each wire body 1131 connected to the fuse component 1141 are limited and fixed, which is beneficial to improving the reliability of the connection between the wire body 1131 and the fuse component 1141.

[0109] In some embodiments, reference Figure 6 , Figure 8 and Fig. 9 As shown, the fuse component 1141 is a fuse.

[0110] Specifically, the fuse is a linear conductor (or fuse) made of a metal material, and the fuse can also be called a fuse. The fuse is connected in series to the conductor 1131, and both ends of the fuse are respectively welded to the conductor 1131. The welding material can be solder paste or the like.

[0111] When the fuse blows and needs to be replaced, it is only necessary to heat the welding position between the fuse and the wire body 1131 to melt the solder paste, and the fuse can be separated from the wire body 1131. Therefore, this welding method can also be understood as a detachable connection; alternatively, the wire body 1131 can be directly cut off at a position close to the welding position to separate the fuse from the wire body 1131, and the new end of the wire body 1131 formed after cutting can be re-soldered with the replaced fuse.

[0112] In this embodiment, the fuse is welded to the wire body 1131, which can not only realize the electrical connection between the fuse and the wire body 1131, but also facilitate the removal of the fuse from the wire body 1131, which is conducive to improving the convenience of replacing the fuse. In addition, the cost of the fuse is low, which is conducive to reducing maintenance costs.

[0113] In some embodiments, reference Fig.10 and Fig.11 As shown, fuse component 1141 is an etched fuse.

[0114] Specifically, the etching fuse is a fuse formed by etching. The etching fuse is formed by etching a metal wire 11411 on an etching substrate 11412. The surfaces of the metal wire 11411 and the etching substrate 11412 can be insulated. Pads 11413 can be respectively provided at both ends of the etching substrate 11412, so that both ends of the metal wire 11411 can be welded to the conductor body 1131. Insulating glue 11414 can be further applied at the welding position. Insulating glue 11414 can be UV glue, which is an ultraviolet curing glue. Ultraviolet curing glue is an adhesive material that is cured by ultraviolet (UV) irradiation. By providing insulating glue 11414, the welding position is insulated and protected.

[0115] When the current on the wire body 1131 is overloaded, the etching fuse connected to the wire body 1131 will melt, that is, the etched metal wire 11411 will melt. In this case, the position where the etching fuse is connected or welded to the wire body 1131 can be disconnected, and the intact etching fuse can be reconnected or welded; or, the metal wire 11411 on the etching substrate 11412 can be directly cleaned, and the metal wire 11411 can be re-etched on the etching substrate 11412, so there is no need to replace the etching substrate 11412, thereby improving the recyclability of the etching substrate 11412.

[0116] The outside of the etching fuse can also be covered with an insulating sleeve 1143 to insulate the outside of the etching fuse.

[0117] In this embodiment, the fuse component 1141 adopts an etched fuse, which can be recycled by repeated etching. There is no need to repeatedly replace the entire fuse component 1141, which is more convenient to use and helps to reduce maintenance costs.

[0118] In some embodiments, reference Fig.10 and Fig.11 As shown, the fuse assembly 1140 also includes a support base 1149, and the etched fuse is connected to the support base 1149.

[0119] Specifically, the support base 1149 is used to carry the etching fuse, and the support base 1149 can be made of non-conductive material, thereby improving the insulation performance of the outside of the etching fuse. The support base 1149 can be a plate-shaped structure, and the support base 1149 has a supporting surface. The pad 11413 can be directly connected to the supporting surface of the support base 1149, and the first limiting structure 11471 and the second limiting structure 11472 can also be connected to the support base 1149.

[0120] In this embodiment, the support base 1149 is provided to achieve installation and support of the etching fuse, thereby improving the installation stability of the etching fuse and facilitating welding of the etching fuse and the wire body 1131 .

[0121] In some embodiments, reference Figure 4 and Figure 5 As shown, the mounting base 1142 includes a first shell 11421 and a second shell 11422 connected to the first shell 11421. The first shell 11421 and the second shell 11422 are jointly arranged to form an accommodating channel 11423. Each wire body 1131 is inserted into the accommodating channel 11423, and the fuse component 1141 is accommodated in the accommodating channel 11423.

[0122] Specifically, for the mounting base 1142, the mounting base 1142 is used to accommodate the fuse component 1141, so the mounting base 1142 may include a first shell 11421 and a second shell 11422, the first shell 11421 and the second shell 11422 cover each other, the first shell 11421 and the second shell 11422 jointly define a accommodating cavity for accommodating the fuse component 1141, and two plug interfaces connected to the accommodating cavity are formed on the mounting base 1142, so that the first wire body 1131 and the second wire body 1131 are both plugged into the accommodating cavity through the plug interfaces, so the accommodating cavity with two plug interfaces forms an accommodating channel 11423, that is, each wire body 1131 is plugged into the accommodating channel 11423, and the fuse component 1141 is accommodated in the accommodating channel 11423. The second shell 11422 may be a hollow structure with one end open, and the first shell 11421 may be a plate-like structure, and the first shell 11421 covers the open side of the second shell 11422, so that the first shell 11421 and the second shell 11422 jointly define the accommodating channel 11423; the first shell 11421 and the second shell 11422 may also both be hollow structures with one end open, and the open side of the first shell 11421 covers the open side of the second shell 11422. Of course, the mounting seat 1142 formed by the first shell 11421 and the second shell 11422 may be in various shapes, such as a cylinder, a cuboid, etc.

[0123] At least any one of the first shell 11421 and the second shell 11422 can be connected to the box body 1110. An outwardly protruding leg structure can be formed on the first shell 11421 or the second shell 11422, and the leg structure can be detachably connected to the box body 1110 through a fastening assembly.

[0124] In this embodiment, the mounting seat 1142 adopts a shell-like structure, which is connected to the second shell 11422 through the first shell 11421 to form an accommodating channel 11423, so that the fuse component 1141 is accommodated in the accommodating channel 11423, so that the mounting seat 1142 plays a protective role for the fuse component 1141.

[0125] In a specific embodiment, referring to Figure 1-11As shown, the battery device 1100 includes a battery cell assembly 1120, a box 1110, a circuit structure and a fuse assembly 1140, wherein the box 1110 has a housing space 1113; the battery cell assembly 1120 is accommodated in the housing space 1113; the circuit structure includes a wiring harness 1130, the wiring harness 1130 includes a plurality of wire bodies 1131 electrically connected to the battery cell assembly 1120; the fuse assembly 1140 includes a mounting seat 1142 and a plurality of fuse components 1141, the mounting seat 1142 is connected to the box 1110; any one of the wire bodies 1131 is electrically connected to at least one fuse component 1141; each fuse component 1141 is electrically connected to the battery cell assembly 1120; and each fuse component 1141 is electrically connected to the battery cell assembly 1120. 141 are all limited on the mounting seat 1142; the fuse component 1141 is welded to the wire body 1131; the fuse component 1141 has a first connection portion 1150 and a second connection portion 1160 formed by connecting with the corresponding wire body 1131; the fuse assembly 1140 also includes an insulating sleeve 1143, which is sleeved on the outer periphery of the fuse component 1141, the first connection portion 1150 and the second connection portion 1160; the insulating sleeve 1143 is shrinkable and deformable; the fuse component 1141 has a first end 11415 and a second end 11416, and the first end 11415 and the second end 11416 are both connected with a The supporting structure 1144 for accommodating the flux 1170 is electrically connected to the corresponding wire body 1131. The supporting structure 1144 includes a plurality of supporting arms 1145, which are extended from the fuse component 1141 in different directions toward the direction away from the fuse component 1141 to form a gradually expanding shape, so that a clamping space 1146 is formed between the plurality of supporting arms 1145, and the clamping space 1146 is used to accommodate the flux 1170. The fuse assembly 1140 also includes a first limiting component 1147, which is connected between the fuse component 1141 and the wire body 1131. The battery device 1100 It also includes a second limiting component 1148 connected to the mounting base 1142, and the second limiting component 1148 is connected to each wire body 1131 to limit each wire body 1131 on the mounting base 1142; the fuse component 1141 is a fuse wire or an etched fuse; the mounting base 1142 includes a first shell 11421 and a second shell 11422 connected to the first shell 11421, the first shell 11421 and the second shell 11422 are jointly arranged to form an accommodating channel 11423, each wire body 1131 is inserted into the accommodating channel 11423, and the fuse component 1141 is accommodated in the accommodating channel 11423.

[0126] According to some embodiments of the present application, the present application further provides an energy storage device, which includes a power conversion device and the energy storage device in the above embodiments, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0127] Specifically, the energy storage device may include one or more battery clusters to increase the voltage and capacity of the energy storage device. The battery cluster may include multiple battery devices 1100, and the multiple battery devices 1100 are connected in series through a busbar to increase the voltage of the energy storage device. When the energy storage device includes multiple battery clusters, the multiple battery clusters are connected in parallel to increase the capacity of the energy storage device.

[0128] The energy storage device can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems or temporary power supply systems. The energy storage device can store electrical energy as needed and output electrical energy at an appropriate time. For example, the energy storage device can store electrical energy during low power consumption and provide electrical energy to relevant users or electrical equipment during peak power consumption. The energy storage system provided in the embodiment of the present application can be any power system that requires the use of an energy storage device.

[0129] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0130] In some embodiments, the energy storage device may include a cabinet and one or more battery clusters, wherein the battery clusters are housed in the cabinet.

[0131] In some embodiments, the energy storage device may include modules such as a thermal management module, a main control module, a master control module, a power distribution module, and a fire protection module.

[0132] As an example, the thermal management module may include a liquid cooling unit that provides cooling liquid for regulating the temperature of the battery cells to each battery device 1100 through a pipeline.

[0133] As an example, the main control module can be used as a battery management unit of a battery cluster to monitor and manage the battery cluster. The main control module can monitor information such as the current, voltage, power or temperature of the battery cluster. For example, the charging and discharging current and voltage of the battery cluster can be controlled. The main control module includes a slave battery management unit SBMU (SBMU), a fusion switch and other modules.

[0134] As an example, the master control module can be used as a battery management unit of an energy storage device to monitor and manage the energy storage device. The master control module can monitor information such as the current, voltage, power, state of charge or temperature of the energy storage device. For example, the charging and discharging current and voltage of the energy storage device can be controlled. As an example, the master control module includes an insulation monitoring module IMM (Insulation Monitoring Module, abbreviated as IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), Ethernet ETH (EtherNet, ETH) and a fiber optic conversion module.

[0135] As an example, the fire protection module includes a control panel, a detector, an alarm device, etc., which are used to detect, alarm or extinguish fire in the energy storage system. As an example, the power distribution module can be used to distribute power to modules in the energy storage device that require power.

[0136] According to some embodiments of the present application, the present application also provides an energy storage system, which includes a power conversion device and the energy storage device in the above embodiments, and the power conversion device is used to electrically connect the power generation device and the energy storage device.

[0137] In some embodiments, the energy storage system may include one or more energy storage devices and a power converter system (PCS), and the power converter is used to connect between the power generation equipment and the energy storage device. The power generation equipment is used to generate electrical energy, and the electrical energy generated by the power generation equipment can be stored in the energy storage device through the power conversion device. As an example, the power generation equipment may specifically be a solar panel, a hydropower generation equipment, a thermal power generation equipment, a wind power generation equipment, etc. Among them, the specific type of the power generation equipment is not limited in this application.

[0138] According to some embodiments of the present application, referring to Figure 1 As shown, the present application further provides an electrical device, which includes the battery device 1100 in the above embodiment, the energy storage device in the above embodiment, or the energy storage system in the above embodiment, and the battery device 1100 is used to store or provide electrical energy.

[0139] The technical solutions described in the embodiments of the present application are applicable to various electrical devices using battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles 1000, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0140] The example of the electrical device in the present application is based on the example of the battery device 1100 described above. The example of the electrical device includes all the technical effects of the example of the battery device 1100 described above, which will not be described in detail.

[0141] According to some embodiments of the present application, the present application further provides a charging network, which includes charging piles and the energy storage device in the above embodiment or the energy storage system in the above embodiment, and the energy storage device is used to provide electrical energy for the charging piles.

[0142] For example, the charging network includes a charging pile and an energy storage device, the charging pile is electrically connected to the energy storage device, and the energy storage device is used to provide electrical energy to the charging pile. The charging pile is electrically connected to the battery device 1100 in the energy storage device through a cable, and the battery device 1100 can provide its stored electrical energy to the charging pile. The charging pile has one or more connectors, which are used to connect to an electrical device (such as a vehicle 1000) so that energy can be replenished to the electrical device.

[0143] The energy storage device can be located inside the charging pile (such as an integrated storage and charging machine) or outside the charging pile.

[0144] The above are only preferred embodiments of the present application, and only specifically describe the technical principles of the present application. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanation here, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application, and other specific implementation methods of the present application that can be associated with the technicians in this field without creative work, should be included in the scope of protection of the present application.

Claims

1. A battery device, characterized in that: include: A box body having a containing space; A battery cell assembly is accommodated in the accommodation space; A circuit structure, comprising a plurality of conductors, one end of each of the conductors being electrically connected to the battery cell assembly; The fuse assembly comprises a mounting seat and a plurality of fuse components, wherein the mounting seat is connected to the box body; at least one fuse component is electrically connected to any one of the conductor bodies; and each of the fuse components is limited to be located on the mounting seat.

2. The battery device according to claim 1, characterized in that The fuse component is detachably connected to the wire body.

3. The battery device according to claim 1, characterized in that: The fuse component is welded to the wire body.

4. The battery device according to claim 3, characterized in that: The fuse component has a first connection portion and a second connection portion formed by connecting with the corresponding wire body; the fuse assembly also includes an insulating sleeve, which is sleeved on the outer periphery of the fuse component, the first connection portion and the second connection portion.

5. The battery device according to claim 4, characterized in that: The insulating sleeve has shrinkable and deformable properties.

6. The battery device according to claim 3, characterized in that: The fuse component has a first end and a second end, and the first end and the second end are both connected to a supporting structure for accommodating flux, and each of the supporting structures is electrically connected to the corresponding wire body.

7. The battery device according to claim 6, characterized in that: The supporting structure includes a plurality of supporting arms, which extend from the fuse component in different directions toward a direction away from the fuse component in a gradually expanding shape, so that a clamping space is formed between the plurality of supporting arms, and the clamping space is used to accommodate the flux.

8. The battery device according to claim 1, wherein: The fuse assembly further includes a first limiting component connected between the fuse component and the wire body.

9. The battery device according to claim 8, characterized in that: The wire bodies each include a first wire segment and a second wire segment, and the fuse component is electrically connected between the first wire segment and the second wire segment; the first limiting component includes a first limiting structure and a second limiting structure, the first limiting structure is connected between the fuse component and the first wire segment, and the second limiting structure is connected between the fuse component and the second wire segment.

10. The battery device according to claim 1, wherein: The battery device further comprises a second limiting component connected to the mounting seat, wherein the second limiting component is connected to each of the wire bodies to limit each of the wire bodies on the mounting seat.

11. The battery device according to claim 10, characterized in that: The wire body includes a first wire segment and a second wire segment, and the fuse component is electrically connected between the first wire segment and the second wire segment; the second limiting component includes a third limiting structure and a fourth limiting structure both connected to the mounting seat, the third limiting structure is connected to each of the first wire segments, and the fourth limiting structure is connected to each of the second wire segments.

12. The battery device according to any one of claims 1 to 11, characterized in that: The fuse component is a fuse.

13. The battery device according to any one of claims 1 to 11, characterized in that: The fuse component is an etching fuse.

14. The battery device according to claim 13, characterized in that: The fuse assembly also includes a support seat, and the etching fuse is connected to the support seat.

15. The battery device according to claim 1, wherein: The mounting base includes a first shell and a second shell connected to the first shell, the first shell and the second shell together enclose a receiving channel, each of the wire bodies is inserted into the receiving channel, and the fuse component is received in the receiving channel; the first shell and / or the second shell are connected to the box body.

16. An energy storage device, characterized in that: The invention comprises a plurality of battery devices according to any one of claims 1 to 15, wherein the battery devices are used to store or provide electrical energy.

17. An energy storage system, characterized in that: It comprises a power conversion device and the energy storage device as claimed in claim 16, wherein the power conversion device is used to electrically connect the power generation device and the energy storage device.

18. An electrical device, characterized in that: It comprises the battery device according to any one of claims 1 to 15, the energy storage device according to claim 16 or the energy storage system according to claim 17, wherein the battery device is used to store or provide electrical energy.

19. A charging network, characterized in that: It comprises a charging pile and the energy storage device according to claim 16 or the energy storage system according to claim 17, wherein the energy storage device is used to provide electrical energy for the charging pile.

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