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

Abstract

The utility model 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, and the battery device comprises a battery monomer assembly, a box body, a first guide connection piece, a power distribution assembly and a locking connection assembly; the box body is provided with an accommodating space and a mounting space, the battery monomer assembly is accommodated in the accommodating space, and the box body is provided with a plugging port; the first guide connecting piece is connected to the box body and is electrically connected with the battery monomer assembly; the power distribution assembly comprises a shell, an electronic system assembly and a second conductive connection piece, the shell is provided with a containing cavity, the electronic system assembly is arranged in the containing cavity, and the second conductive connection piece is electrically connected to the electronic system assembly; the shell is connected to the box body and inserted into the mounting space, and the second guide connecting piece is electrically connected with the first guide connecting piece; the shell is provided with an operation opening. The locking assembly is connected between the shell and the box body or between the first guide connecting piece and the second guide connecting piece; the operation opening is communicated to the locking assembly. The utility model aims to improve the disassembly convenience of the power distribution assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production, and in particular to a battery device, an energy storage device, an energy storage system, a power utilization device and a charging network. BACKGROUND

[0002] The distribution box is a key component in the power system, and in the battery device, the distribution box can distribute the electric energy in the battery monomer assembly to each high-voltage system of the external power utilization device.

[0003] During the operation of the battery device, the distribution box may fail, and therefore the distribution box needs to be repaired. In the related art, the distribution box is built in the inside of the battery device, and when the distribution box is repaired, the box body outside the battery device needs to be disassembled, and the distribution box needs to be removed from the box body through a complicated process, which results in a complicated disassembly process, poor disassembly convenience and an adverse effect on the repair efficiency. UTILITY MODEL CONTENT

[0004] The present application aims to provide a battery device, an energy storage device, an energy storage system, a power utilization device and a charging network, and aims to solve the technical problem of a complicated disassembly process, poor convenience and an adverse effect on the disassembly efficiency of the distribution assembly in the battery device.

[0005] In a first aspect, the present application provides a battery device, comprising:

[0006] a battery monomer assembly;

[0007] a box body having a containing space and a mounting space, the battery monomer assembly being contained in the containing space, and the box body being provided with a plug-in interface communicating with the mounting space;

[0008] a first lead-through connected to the box body and located in the mounting space, and the first lead-through being electrically connected to the battery monomer assembly;

[0009] a distribution assembly comprising a shell, an electronic system assembly and a second lead-through, the shell having a containing cavity, the electronic system assembly being connected to the shell and contained in the containing cavity, and the second lead-through being electrically connected to the electronic system assembly; the shell being connected to the box body and plugged into the mounting space through the plug-in interface, and the second lead-through being electrically connected to the first lead-through; the shell being provided with an operation port;

[0010] a locking assembly connected between the shell and the box body, or the locking assembly being connected between the first lead-through and the second lead-through; the operation port penetrating to the locking assembly.

[0011] In the embodiment, the locking assembly is connected between the shell and the box or between the first lead-through and the second lead-through, so that the first lead-through and the second lead-through are kept in a connected state; the operation port extends to the position of the locking assembly, and when maintenance, the hand of the operator or the tool held by the operator can directly contact the locking assembly through the operation port to realize dismounting and mounting of the locking assembly. After the locking assembly is unlocked, the power distribution assembly is relatively free with respect to the box, the first lead-through and the second lead-through are separated, and the power distribution assembly can be directly pulled out from the plug-in interface of the mounting space without dismounting the box. The dismounting and mounting of the power distribution assembly and the box are more convenient, which is beneficial to improving the efficiency of maintenance.

[0012] In one of the embodiments, the second lead-through is accommodated in the accommodation cavity, the locking assembly is arranged in the accommodation cavity, and the operation port penetrates into the accommodation cavity and is arranged opposite to the locking assembly.

[0013] In the embodiment, the locking assembly is arranged in the accommodation cavity, so that the operation port only needs to penetrate into the accommodation cavity and be arranged opposite to the locking assembly. Therefore, the hand of the operator or the tool can pass through the operation port to contact the locking assembly in the accommodation cavity, so that the mounting and dismounting of the locking assembly are realized. The overall structure design is simpler and more compact.

[0014] In one of the embodiments, the power distribution assembly further comprises a cover which is detachably connected to the shell and covers the operation port.

[0015] In the embodiment, the cover is arranged on the operation port, so that the accommodation cavity can be closed to protect the electronic system assembly, part of the first lead-through, the second lead-through and the locking assembly in the accommodation cavity, and reduce the probability of damage of water vapor, dust and foreign matters to the components in the accommodation cavity.

[0016] In one of the embodiments, the first lead-through comprises a second lead-through plate electrically connected to the battery monomer assembly, the second lead-through comprises a second lead-through plate electrically connected to the electronic system assembly, the first lead-through plate and the second lead-through plate are in contact connection, and the locking assembly is connected between the first lead-through plate and the second lead-through plate.

[0017] In the embodiment, the first lead-through adopts the structure of the first lead-through plate, so that the first lead-through plate can be inserted into the accommodation cavity. The second lead-through adopts the structure of the second lead-through plate, so that the second lead-through plate can be extended to the position connected with the first lead-through plate when the electronic system assembly is away from the second lead-through plate. The overall structure is more flexible and variable, which is convenient for manufacturing and assembling.

[0018] In one of the embodiments, the locking assembly comprises a first locking structure and a second locking structure, the first locking structure is connected to the first lead connector, the second locking structure is connected to the second lead connector, and the first locking structure is threadedly connected to the second locking structure to limit the first lead connector and the second lead connector between the first locking structure and the second locking structure.

[0019] In the embodiment, the locking assembly is connected in a threaded manner, which makes the installation and disassembly of the locking assembly more convenient, thereby facilitating the improvement of the installation and disassembly efficiency between the power distribution assembly and the box.

[0020] In one of the embodiments, any one of the first locking structure and the second locking structure is a threaded stud structure, and the other is a threaded nut structure, and the threaded stud structure is threadedly connected to the threaded nut structure.

[0021] In the embodiment, the locking assembly comprises the threaded stud structure and the threaded nut structure, and the threaded stud structure is threadedly connected to the threaded nut structure to limit and fix the first lead connector and the second lead connector, which is simple in structure, convenient to manufacture, and convenient to install and disassemble, thereby facilitating the improvement of the maintenance efficiency.

[0022] In one of the embodiments, the first locking structure is a threaded stud structure, the second locking structure is a threaded nut structure, the locking assembly further comprises an insulating seat connected to the box, and the threaded stud structure is connected to the insulating seat.

[0023] In the embodiment, the insulating seat can support the threaded stud structure and the first lead connector, and can insulate the threaded stud structure and the first lead connector from the box, thereby reducing the risk of short circuit between the threaded stud structure and the box.

[0024] In one of the embodiments, the battery device further comprises a guide assembly connected between the box and the shell.

[0025] In the embodiment, the guide structure is additionally arranged between the box and the shell, so that the shell can be more smoothly installed in and out of the installation space, the interference problem in the sliding process is reduced, and the assembly efficiency is improved.

[0026] In one of the embodiments, the guide assembly comprises a first guide structure connected to the shell and a second guide structure connected to the box, the first guide structure and the second guide structure are inserted and matched, the first guide structure can slide relative to the second guide structure along a first direction, and the first direction is parallel to the depth direction of the insertion port.

[0027] In the embodiment, the guide assembly adopts the combination of the inserted and sliding matching of the first guide structure and the second guide structure, which is simple in structure and convenient to manufacture, and the configuration positions of the first guide structure and the second guide structure are also more flexible.

[0028] In one of the embodiments, the battery device further comprises a limiting assembly connected between the shell and the box, the limiting assembly being configured to limit the movement of the shell relative to the box in the second direction, the second direction being perpendicular to the depth direction of the insertion port.

[0029] In the embodiment, the limiting assembly is arranged between the shell and the box, so as to limit the movement of the shell relative to the box in the second direction, thereby reducing the shaking of the shell relative to the box, protecting the shell and reducing the noise.

[0030] In one of the embodiments, the limiting assembly comprises a first limiting structure connected to the shell and a second limiting structure connected to the box, the first limiting structure being insertedly matched with the second limiting structure in the first direction.

[0031] In the embodiment, when the shell is inserted into the installation space, the first limiting structure and the second limiting structure limit the shell in the form of insertion, thereby reducing the shaking of the shell relative to the box, protecting the shell and reducing the noise.

[0032] In one of the embodiments, the shell comprises a shell body and a panel part, the shell body having a receiving space, the electronic system assembly being connected to the shell body, and the locking assembly being connected between the shell body and the box; the panel part being connected to the shell body, the shell body being inserted into the installation space, the panel part being exposed to the installation space, and the edge of the panel part extending to the outer periphery of the insertion port and being connected to the surface of the shell body.

[0033] In the embodiment, by additionally arranging the panel part, the gap space between the shell body and the installation space can be sealed by the panel part at the position of the insertion port of the installation space after the shell body of the shell is inserted into the installation space, thereby improving the sealing performance of the battery device.

[0034] In one of the embodiments, the box comprises a frame body and a cover body, the cover body being detachably connected to the frame body and being arranged together with the frame body to form the receiving space and the installation space; the insertion port being arranged on the frame body, and the shell being provided with an open port communicated with the receiving cavity, the open port being arranged opposite to the cover body.

[0035] In the embodiment, the box is combined by the cover body and the frame body, the cover body being opened to expose the installation space and expose the receiving cavity through the open port, so that the electronic system assembly, the second lead and the locking assembly are as exposed as possible to the position accessible to the operator, thereby facilitating the maintenance of the power distribution assembly when the cover body is opened.

[0036] In one of the embodiments, the cover includes a first cover sub-portion and a second cover sub-portion connected with the first cover sub-portion, the first cover sub-portion and the second cover sub-portion are detachably connected with the frame body, the first cover sub-portion is arranged opposite to the battery monomer assembly, and the second cover sub-portion is arranged opposite to the open mouth.

[0037] In the embodiment, when the power distribution assembly needs to be maintained, only the second cover sub-portion needs to be opened, so that the power distribution assembly, the internal electronic system assembly, the second lead-through member and the locking assembly can be in the exposed state, thereby the environment of the battery monomer assembly is not easily affected, and the battery monomer assembly is protected.

[0038] In one of the embodiments, the box includes a first box sub-portion and a second box sub-portion, the first box sub-portion has a containing space, the second box sub-portion has a mounting space, the shell and the first lead-through member are connected with the second box sub-portion, and the second box sub-portion is detachably connected with the first box sub-portion.

[0039] In the embodiment, the box is combined and connected by the first box sub-portion and the second box sub-portion, so that when the power distribution assembly is maintained, the second box sub-portion can be detached alone, and the maintenance is more convenient and labor-saving.

[0040] In a second aspect, the application provides an energy storage device, including a plurality of the battery device as any one of the above, the battery device is used for storing or providing electric energy.

[0041] In a third aspect, the application provides an energy storage system, including a power conversion device and the energy storage device as above, the power conversion device is used for electrically connecting a power generation device and the energy storage device.

[0042] In a fourth aspect, the application provides a power consumption device, including the battery device as any one of the above, the energy storage device as above or the energy storage system as above, the battery device is used for storing or providing electric energy.

[0043] In a fifth aspect, the application provides a charging network, including a charging pile and the energy storage device as above or the energy storage system as above, the energy storage device is used for providing electric energy for the charging pile.

[0044] The above description is only a summary of the technical solutions of the application, in order to more clearly understand the technical means of the application, the specific embodiments of the application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the application more obvious and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application or the prior art will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0046] Figure 1 The structural schematic diagram of the vehicle provided for some embodiments of the present application is shown in the figure.

[0047] Figure 2 The exploded structural schematic diagram of the battery device provided for some embodiments of the present application is shown in the figure. Figure 1 ;

[0048] Figure 3 The exploded structural schematic diagram of the battery device provided for some embodiments of the present application is shown in the figure. Figure 2 ;

[0049] Figure 4 The structural schematic diagram of the battery device provided for some embodiments of the present application after hiding the cover is shown in the figure.

[0050] Figure 5 The partial enlarged view of the A position in the figure Figure 4 .

[0051] Figure 6 The exploded structural schematic diagram of the battery device provided for some embodiments of the present application is shown in the figure. Figure 3 ;

[0052] Figure 7 The partial enlarged view of the B position in the figure Figure 6 .

[0053] Figure 8 The exploded structural schematic diagram of the battery device provided for some embodiments of the present application is shown in the figure. Figure 4 ;

[0054] Figure 9 The structural schematic diagram of the battery device provided for some embodiments of the present application after hiding the second sub-cover is shown in the figure.

[0055] Explanation of reference signs:

[0056] 1000, vehicle; 1100, battery device; 1110, box body; 1111, first part; 1112, second part; 1113, accommodating space; 1114, mounting space; 1115, plug interface; 1116, cover body; 11161, first sub-cover part; 11162, second sub-cover part; 1117, frame body; 1118, first sub-box part; 1119, second sub-box part; 1120, battery cell assembly; 1130, first lead; 1140, power distribution assembly; 1141, housing; 11411, accommodating cavity; 11412, panel part; 11413, housing body; 11414, opening; 11415, operation opening; 1142, cover; 1143, second lead; 1144, electronic system assembly; 1150, locking assembly; 1151, first locking structure; 1152, second locking structure; 1153, insulating seat; 1160, limiting assembly; 1161, first limiting structure; 1162, second limiting structure; 1170, guiding assembly; 1171, first guiding structure; 1172, second guiding structure; 1200, controller; 1300, motor; X, first direction; Y, second direction. DETAILED DESCRIPTION

[0057] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as embodiments, and cannot limit the protection scope of the present application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0059] 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 "a plurality of" is two or more, unless otherwise explicitly specified.

[0060] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0061] In the description of the embodiments of the present application, the term“and / or” is merely used to describe associated objects, and can represent the three conditions of three objects, for example, A and / or B can represent the three conditions of A alone, A and B together, and B alone. In addition, the character“ / ” in the present application generally represents that the associated objects before and after the character“ / ” are in an“or” relationship.

[0062] In the description of the embodiments of the present application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces).

[0063] In the description of the embodiments of the present application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship shown in the drawings, and 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0064] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0065] A battery apparatus can include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly can include a plurality of battery cells connected in series, in parallel, or in a hybrid connection through a busbar component.

[0066] The battery device can be a battery pack, which generally includes a box body and one or more battery cell assemblies accommodated in the box body.

[0067] The distribution box is a key component in a power system, which can also be referred to as a high-voltage box. In the battery device, the distribution box can distribute the electrical energy in the battery cell assembly to each high-voltage system of an external power utilization device.

[0068] The distribution box generally includes a plurality of circuit protection devices, such as relays, fuses, etc. During the operation of the battery device, the fuses and relays often fail when some dangerous conditions threatening the normal operation of the battery device occur, which causes the distribution box to fail. Therefore, the distribution box often needs to be repaired.

[0069] In the related art, the distribution box is built in the inside of the battery device. For example, the battery device includes a box body having an accommodation space, and the distribution box is accommodated in the box body. When repairing the distribution box, the box body outside the battery device needs to be disassembled to expose the distribution box. The distribution box is often fixed to the box body by a fastening assembly. Therefore, the repair personnel need to use tools and go through a complicated process to disassemble the distribution box from the box body for repair, which leads to a complicated repair process, poor repair convenience, and adversely affects the repair efficiency.

[0070] Therefore, the battery device provided in the present application is provided with a distribution assembly (i.e., a distribution box), which is inserted into the mounting space formed in the box body in a plug-in manner. The distribution assembly is electrically connected to the first and second lead-through members in the mounting space, so that the distribution assembly can be electrically connected and conducted with the battery cell assembly. The first and second lead-through members can be locked and fixed by a locking assembly. When repairing the distribution assembly, the locking assembly only needs to be opened, and the distribution assembly can be pulled out of the mounting space by external force, without the need to disassemble the box body to take out the distribution assembly, thereby improving the convenience of installing and disassembling the distribution assembly and being beneficial to improving the repair efficiency.

[0071] Specifically, referring to Figure 2As shown, the battery device 1100 provided by the embodiments of the present application includes one or more battery cell assemblies 1120. The battery device 1100 disclosed by the embodiments of the present application can be used in various energy storage devices and energy storage systems using the battery device 1100 as a power source or an energy storage element. The power consumption device can be, but is not limited to, a mobile phone, a portable device, a notebook computer, an electric toy, an electric tool, an electric vehicle, a vehicle, a ship, a spacecraft, etc. The electric toy can include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric plane toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0072] The following embodiments are described by taking a vehicle 1000 as an example for convenience of description.

[0073] Please refer to Figure 1 , Figure 1 The vehicle 1000 provided by some embodiments of the present application is shown in the structural schematic diagram. The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid electric automobile, or a range extended automobile, etc. The vehicle 1000 is internally provided with a battery device 1100. The battery device 1100 can be arranged at the bottom, the head, or the tail of the vehicle 1000. The battery device 1100 can be used for power supply of the vehicle 1000, for example, the battery device 1100 can be used as an operating power source of the vehicle 1000. The vehicle 1000 can further include a controller 1200 and a motor 1300. The controller 1200 is used to control the battery device 1100 to supply power to the motor 1300, for example, to meet the power demand of the vehicle 1000 during starting, navigation, and driving.

[0074] In some embodiments of the present application, the battery device 1100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 1000.

[0075] Please refer to Figure 2 as shown, Figure 2This is an exploded structural diagram of a battery device 1100 provided in some embodiments of this application. The battery device 1100 includes a housing 1110 and a battery cell assembly 1120. A receiving space 1113 is formed within the housing 1110, and the battery cell assembly 1120 is housed within the receiving space 1113. The battery cell assembly 1120 is typically formed by arranging multiple battery cells. Alternatively, the battery cell assembly 1120 can also be a battery module, which is formed by arranging and fixing multiple battery cells to form an independent module. As an example, a battery module can be formed by bundling multiple battery cells together with cable ties. The housing 1110 provides the receiving space 1113 for the battery cell assembly 1120, and the housing 1110 can adopt various structures.

[0076] A battery cell refers to the smallest unit that makes up the battery device 1100. Each battery cell can be a secondary battery cell or a primary battery cell; it can also be a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited to these. Battery cells can be cylindrical, flat, cuboid, or other shapes.

[0077] According to some embodiments of this application, refer to Figures 2-6 As shown in the figure, this application provides a battery device 1100, which includes a battery cell assembly 1120, a housing 1110, a first conductive member 1130, a power distribution assembly 1140, and a locking assembly 1150. The housing 1110 has a receiving space 1113 and an installation space 1114. The battery cell assembly 1120 is housed within the receiving space 1113, and the housing 1110 has a plug-in interface 1115 communicating with the installation space 1114. The first conductive member 1130 is connected to the housing 1110 and located within the installation space 1114, and is electrically connected to the battery cell assembly 1120. The power distribution assembly 1140 includes a housing 1141 and an electronic system assembly 114. 4. The second guide member 1143, the housing 1141 has a receiving cavity 11411, the electronic system component 1144 is connected to the housing 1141 and received in the receiving cavity 11411, the second guide member 1143 is electrically connected to the electronic system component 1144; the housing 1141 is connected to the enclosure 1110 and is inserted into the installation space 1114 by the plug-in interface 1115, the second guide member 1143 is electrically connected to the first guide member 1130; the housing 1141 has an operation port 11415; the locking assembly 1150 is connected between the housing 1141 and the enclosure 1110, or the locking assembly 1150 is connected between the first guide member 1130 and the second guide member 1143; the operation port 11415 extends to the locking assembly 1150.

[0078] For the box 1110, the box 1110 is used to accommodate the battery monomer assembly 1120, therefore, the box 1110 can include a first part 1111 and a second part 1112, the first part 1111 and the second part 1112 are mutually covered, and the first part 1111 and the second part 1112 jointly define an accommodation space 1113 for accommodating the battery monomer assembly 1120. The second part 1112 can be a hollow structure with one end open, and the first part 1111 can be a plate-shaped structure, 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 accommodation space 1113; the first part 1111 and the second part 1112 can 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 can be of various shapes, such as a cylinder, a cuboid, etc.

[0079] The box 1110 has an accommodation space 1113 for accommodating the battery monomer assembly 1120, and also has a mounting space 1114 for accommodating the power distribution assembly 1140, the mounting space 1114 can be in the form of a cavity or a groove, and the plug-in port 1115 is opened on the box wall of the box 1110, so that the plug-in port 1115 communicates with the mounting space 1114. It can be understood that the mounting space 1114 forms a groove-shaped space structure. The mounting space 1114 and the accommodation space 1113 can be mutually through or non-through, for example, when the plug-in port 1115 of the mounting space 1114 can be sealed, such as when the plug-in port 1115 of the mounting space 1114 can be sealed by the panel part 11412 described below, then the mounting space 1114 can be throughly arranged with the accommodation space 1113; when the plug-in port 1115 of the mounting space 1114 communicates with the external space without sealing, then the mounting space 1114 and the accommodation space 1113 can be non-throughly isolated.

[0080] The battery cell assembly 1120 is accommodated in the accommodation space 1113 of the box body 1110. When the battery cell assembly 1120 supplies power to the external power consumption assembly, the battery cell assembly 1120 first needs to be electrically connected with the power distribution assembly 1140. Therefore, the first lead-through member 1130 needs to be arranged in the battery device 1100 to be electrically connected with the battery cell assembly 1120, so that the power distribution assembly 1140 can be electrically connected and conducted between the first lead-through member 1130 and the battery cell assembly 1120. For the first lead-through member 1130, the first lead-through member 1130 can be understood as a plug-in terminal or a pin structure or a socket for electrical connection, and the first lead-through member 1130 can also adopt a metal structural member with simple structure and electrical conductivity. The first lead-through member 1130 is connected to the box body 1110. Specifically, the box body 1110 can be provided with a beam structure or a rib structure, and the first lead-through member 1130 can be fixedly or detachably connected to the beam structure or the rib structure.

[0081] In the power distribution assembly 1140, the electronic system assembly 1144 is a basic part of the electronic system of the power distribution assembly 1140, for example, the electronic system assembly 1144 includes voltage stabilizers, sensors, amplifiers, signal processors, relays, fuses, circuit breakers, memories, resistors, capacitors, and wireless modules.

[0082] In the power distribution assembly 1140, the housing 1141 is used to accommodate the above-mentioned electronic system assembly 1144. The housing 1141 is internally provided with an accommodation cavity 11411, and the electronic system assembly 1144 is accommodated in the accommodation cavity 11411. The electronic system assembly 1144 can be fixedly or detachably connected with the housing 1141, so that the position of the electronic system assembly 1144 in the accommodation cavity 11411 is fixed relative to the housing 1141. The housing 1141 can be made of a plate-shaped structure, and can be made of metal or non-metal materials, for example, the accommodation part can be made of iron, aluminum, alloy, plastic, etc. Since the power distribution assembly 1140 is plugged into the mounting space 1114 of the box body 1110, the size of the housing 1141 needs to match the size of the mounting space 1114, so that the housing 1141 can be plugged into the mounting space 1114 along the depth direction of the plug-in port 1115. The depth direction is the plug-in direction.

[0083] In the power distribution assembly 1140, the second lead-through 1143 is used to electrically connect with the first lead-through 1130, and the second lead-through 1143 is electrically connected with the electronic system assembly 1144. After the power distribution assembly 1140 is plugged into the mounting space 1114, the electronic system assembly 1144 can be electrically connected with the battery monomer assembly 1120 through the electrical connection between the first lead-through 1130 and the second lead-through 1143. The second lead-through 1143 can also adopt a plug-in terminal or a pin structure or a socket for electrical connection, and the second lead-through 1143 can also adopt a metal structure with simple structure and electrical conductivity. In the first lead-through 1130 and the second lead-through 1143, one can be a male connector, and the other can be a female connector, so that the first lead-through 1130 and the second lead-through 1143 are connected in a plug-in manner. Alternatively, the first lead-through 1130 and the second lead-through 1143 can also be connected in a contact or abutting manner. The second lead-through 1143 is fixedly or detachably connected to the shell 1141.

[0084] The locking assembly 1150 is used to limit the connection of the power distribution assembly 1140 on the box body 1110, so the locking assembly 1150 can be connected between the shell 1141 and the box body 1110. Since the first lead-through 1130 is connected with the second lead-through 1143 when the power distribution assembly 1140 is connected with the box body 1110, the first lead-through 1130 is connected to the box body 1110, and the second lead-through 1143 is indirectly connected to the shell 1141 through the electronic system assembly 1144, the locking assembly 1150 can also be connected between the first lead-through 1130 and the second lead-through 1143. The locking assembly 1150 limits the first lead-through 1130 relative to the second lead-through 1143, which is equivalent to limiting the connection between the box body 1110 and the shell 1141. The locking assembly 1150 can be understood as a fastener, for example, the locking assembly 1150 can adopt a threaded fastener, a buckle structure, a bolt limiting structure, etc.

[0085] In combination with FIGS. 11 and 12, Figure 6 and Figure 7 As shown in FIGS. 11 and 12, the shell 1141 of the power distribution assembly 1140 further has an operation opening 11415. The operation opening 11415 can be a hole structure formed in the shell wall of the shell 1141. The operation opening 11415 is used to observe the locking assembly 1150 and can be used to install and dismount the locking assembly 1150 through an operating tool. The operation opening 11415 can be understood as an operation channel, so the operation opening 11415 needs to extend to the position of the locking assembly 1150 or the locking assembly 1150, so that the hands of the operator or the tool held by the operator can contact the locking assembly 1150, thereby installing and dismounting the locking assembly 1150.

[0086] In the embodiment, the power distribution assembly 1140 is plugged into the mounting space 1114 of the box 1110, the first lead-through 1130 is electrically connected with the second lead-through 1143 to realize electrical connection and conduction between the battery monomer assembly 1120 and the power distribution assembly 1140, the locking assembly 1150 is connected between the shell 1141 and the box 1110 or between the first lead-through 1130 and the second lead-through 1143, so that the first lead-through 1130 and the second lead-through 1143 are kept in a connected state; the shell 1141 of the power distribution assembly 1140 is provided with an operation opening 11415 extending to the position of the locking assembly 1150, when maintenance, the hand of the operator or the tool held by the operator can directly contact the locking assembly 1150 through the operation opening 11415 to realize dismounting and mounting of the locking assembly 1150, after the locking assembly 1150 is unlocked, the power distribution assembly 1140 is relatively free relative to the box 1110, the first lead-through 1130 and the second lead-through 1143 are separated, then the power distribution assembly 1140 can be directly pulled out from the plug-in port 1115 of the mounting space 1114, without the need of dismounting the box 1110, the dismounting and mounting of the power distribution assembly 1140 and the box 1110 are more convenient, which is conducive to improving the efficiency of maintenance.

[0087] In some embodiments, referring to Figures 3-5 As shown, the second lead-through 1143 is accommodated in the accommodation cavity 11411, the locking assembly 1150 is arranged in the accommodation cavity 11411, and the operation opening 11415 penetrates into the accommodation cavity 11411 and is arranged opposite to the locking assembly 1150.

[0088] Specifically, the electronic system assembly 1144 is located in the accommodation cavity 11411, and the second lead-through 1143 is connected to the electronic system assembly 1144, so that the second lead-through 1143 is also located in the accommodation cavity 11411. It can be known that the first lead-through 1130 needs to extend to the accommodation cavity 11411 through the shell wall of the shell 1141 and be connected with the second lead-through 1143. The first lead-through 1130 can be columnar, rod-shaped or sheet-shaped, etc. The shell wall of the shell 1141 is provided with a plug-in hole, and the first lead-through 1130 is plugged into the plug-in hole and connected with the second lead-through 1143 in a contact manner, which can include abutting contact, plug-in, etc.

[0089] For the locking assembly 1150, when the locking assembly 1150 is connected between the first guide member 1130 and the second guide member 1143, the second guide member 1143 is located in the accommodating cavity 11411, and thus the locking assembly 1150 is also located in the accommodating cavity 11411. Therefore, the operation opening 11415 needs to be able to pass through to the accommodating cavity 11411, so that the operation opening 11415 is opposite to the locking assembly 1150, and the hands of the operator or the tool held by the operator can directly extend to the position of the locking assembly 1150 through the operation opening 11415, so as to install and dismount the locking assembly 1150. When the locking assembly 1150 is connected between the shell 1141 and the box body 1110, the locking assembly 1150 can also be located in the accommodating cavity 11411. For example, the locking assembly 1150 includes a stud and a nut, the nut is fixed on the box body 1110, a through hole or a threaded hole is formed on the shell 1141, the stud enters the accommodating cavity 11411 through the operation opening 11415 and is connected in the through hole or the threaded hole, so that the stud is threadedly connected with the nut, and thus the wall of the box body 1110 and the wall of the shell 1141 are limited between the stud and the nut.

[0090] In the embodiment, the locking assembly 1150 is arranged in the accommodating cavity 11411, and thus the operation opening 11415 only needs to pass through to the accommodating cavity 11411 and be arranged opposite to the locking assembly 1150, and the hands of the operator or the tool can enter the accommodating cavity 11411 through the operation opening 11415 to contact the locking assembly 1150, so as to install and dismount the locking assembly 1150, and the overall structure design is simpler and more compact.

[0091] In some embodiments, as shown in Figs. Figure 3 , Figure 5 , Figure 6 and Figure 7 , the power distribution assembly 1140 further includes a cover 1142, which is detachably connected to the shell 1141 and covers the operation opening 11415.

[0092] Since the operating port 11415 is an exposed opening structure, when there are many impurities in the external environment of the battery device 1100, such as dust and moisture, they can easily enter the receiving cavity 11411 through the operating port 11415. If the receiving cavity 11411 is connected to the receiving space 1113, they may even enter the receiving space 1113. Therefore, in this example, a cover 1142 is added to the power distribution assembly 1140. The cover 1142 is used to cover the operating port 11415 to seal it. The cover 1142 is detachably connected to the housing 1141. When maintenance is not required, the cover 1142 is placed on the operating port 11415. When maintenance or disassembly of the locking assembly 1150 is required, the cover 1142 is removed from the housing 1141, and the operating port 11415 is exposed.

[0093] The cover 1142 may be a plate-like structure, and a handle or other structure may be connected to the outer surface of the cover 1142 to facilitate the operator to grip and apply force when installing and removing the cover 1142.

[0094] The cover 1142 can be made of transparent or opaque material. When the cover 1142 is made of transparent material, the operator can observe the situation inside the accommodating cavity 11411 through the cover 1142. Since the electronic system component 1144, the second guide 1143 and the first guide 1130 all have at least a portion located inside the accommodating cavity 11411, the operation of the electronic system component 1144 and the connection between the first guide 1130 and the second guide 1143 can be observed through the cover 1142 without opening the cover 1142.

[0095] In this embodiment, the cover 1142 is opened on the operating port 11415, thereby sealing the accommodating cavity 11411 and protecting the electronic system components 1144, part of the first guide 1130, the second guide 1143, and the locking assembly 1150 located in the accommodating cavity 11411, reducing the probability of damage to the various components in the accommodating cavity 11411 by moisture, dust, foreign objects, etc.

[0096] In some embodiments, refer to Figure 5 and Figure 7 As shown, the first conductive member 1130 includes a second conductive piece electrically connected to the battery cell assembly 1120, and the second conductive member 1143 includes a second conductive piece electrically connected to the electronic system assembly 1144. The first conductive piece and the second conductive piece are in contact and connected. The locking assembly 1150 is connected between the first conductive piece and the second conductive piece.

[0097] Specifically, the first conducting member 1130 adopts a first conducting sheet extending in a sheet shape, the first conducting sheet can be made of a metal material, thereby having electrical conductivity, one end of the first conducting sheet is electrically connected with the battery monomer assembly 1120, the other end of the first conducting sheet abuts against the second conducting sheet, the first conducting sheet can be fixedly connected on the box body 1110, and the one end of the first conducting sheet can extend into the accommodating cavity 11411. The second conducting sheet is located in the accommodating cavity 11411, the second conducting sheet is in a sheet shape, and the second conducting sheet also needs to be made of a metal material, for example, the second conducting sheet can be made of a copper sheet, an aluminum sheet or the like, and the copper sheet can also be referred to as a copper bar.

[0098] The contact mode of the first conducting sheet and the second conducting sheet includes abutment, insertion and the like, for example, the first conducting sheet and the second conducting sheet are arranged oppositely and abut against each other, so that a larger contact area is formed between the first conducting sheet and the second conducting sheet.

[0099] The locking assembly 1150 is connected between the first conducting sheet and the second conducting sheet, thereby being capable of connecting and fixing the first conducting sheet and the second conducting sheet. The locking assembly 1150 can adopt a fastening structure independent of the first conducting sheet and the second conducting sheet, and the locking assembly 1150 is connected between the first conducting sheet and the second conducting sheet through assembly.

[0100] In the embodiment, the first conducting member 1130 adopts the structure of the first conducting sheet, thereby facilitating the insertion of the first conducting sheet into the accommodating cavity 11411, and the second conducting member 1143 adopts the structure of the second conducting sheet, thereby facilitating the extension of the second conducting sheet to the position connected with the first conducting sheet in the case that the electronic system assembly 1144 is away from the second conducting sheet, so that the overall structure is more flexible and variable, and is convenient for manufacturing and assembly.

[0101] In some embodiments, referring to FIGS. 1, 2 and 3, Figure 6 and Figure 7 As shown, the locking assembly 1150 includes a first locking structure 1151 and a second locking structure 1152, the first locking structure 1151 is connected on the box body 1110, the first locking structure 1151 is threadedly connected with the second locking structure 1152, so as to limit the first conducting sheet and the second conducting sheet between the first locking structure 1151 and the second locking structure 1152.

[0102] In the example, the locking assembly 1150 is connected between the first and second conductive tabs. Specifically, the first locking structure 1151 in the locking assembly 1150 is connected to the cabinet 1110, and specifically, can be connected to a rib plate or a beam body in the cabinet 1110. The second locking structure 1152 can be connected to the second conductive tab. The connection can include fixed connection and movable connection. For example, the fixed connection can include welding, bonding or one-piece forming, etc. In the movable connection, the second locking structure 1152 can abut the second conductive tab after being connected to the first locking structure 1151, so that the first conductive tab (i.e., the first conductive piece 1130) and the second conductive tab (i.e., the second conductive piece 1143) are limited between the first and second locking structures 1151 and 1152 after being in contact.

[0103] The first and second locking structures 1151 and 1152 are connected in a threaded connection manner. For example, one of the first and second locking structures 1151 and 1152 is provided with an external thread, and the other is provided with an internal thread. The internal thread is matched and connected with the external thread, so as to limit the first and second conductive tabs. When disassembling, the first locking structure 1151 is rotated relative to the second locking structure 1152 and separated.

[0104] The first and second locking structures 1151 and 1152 can be conductive structures or non-conductive structures. For example, the conductive structure can be made of a metal material, and the non-conductive structure can be made of a plastic material, etc.

[0105] In the embodiment, the locking assembly 1150 is connected in a threaded connection manner, so that the installation and disassembly of the locking assembly 1150 are more convenient, thereby facilitating the improvement of the installation and disassembly efficiency between the power distribution assembly 1140 and the cabinet 1110.

[0106] In some embodiments, as shown in Figure 6 and Figure 7 , any one of the first and second locking structures 1151 and 1152 is a threaded stud structure, and the other is a threaded nut structure. The threaded stud structure is threadedly connected with the threaded nut structure.

[0107] In a possible embodiment, as shown in Figure 7 , the first locking structure 1151 is a threaded stud structure, which is connected to the cabinet 1110, and specifically, can be connected to a rib plate or a beam body inside the cabinet 1110. The second locking structure 1152 is a threaded nut structure. The first and second conductive tabs are each provided with a connecting hole. The threaded stud structure is inserted into the connecting hole. The threaded nut structure abuts the second conductive tab. The threaded stud structure is threadedly connected with the threaded nut structure, so as to limit the first and second conductive tabs between the threaded stud structure and the threaded nut structure.

[0108] In another possible implementation, the first locking structure 1151 is a nut structure, which is connected to the housing 1110. The nut structure and the housing 1110 can be fixedly connected. The second locking structure 1152 is a stud structure, which is connected to the second guide piece. The stud structure can be movably connected to the second guide piece 1143. Both the first guide piece and the second guide piece can have connecting holes. The stud structure passes through the connecting hole and is threadedly connected to the nut structure, thereby limiting the first guide piece and the second guide piece between the stud structure and the nut structure.

[0109] In this embodiment, the locking assembly 1150 includes a stud structure and a nut structure. The threaded connection between the stud structure and the nut structure enables the limiting and fixing of the first guide piece and the second guide piece. The structure is simple, easy to manufacture, and convenient to install and disassemble, which helps to improve maintenance efficiency.

[0110] In some embodiments, refer to Figures 5-7 As shown, the first locking structure 1151 is a stud structure, the second locking structure 1152 is a nut structure, and the locking assembly 1150 also includes an insulating seat 1153 connected to the housing 1110, with the stud structure connected to the insulating seat 1153.

[0111] The insulating base 1153 is connected to the housing 1110. Specifically, the insulating base 1153 can be connected to the stiffening plate or beam inside the housing 1110. The insulating base 1153 is made of non-conductive material, which insulates the insulating base 1153 from the housing 1110. The stud structure is connected to the insulating base 1153, thus making the stud structure insulated and non-conductive from the housing 1110. The insulating base 1153 can be fixedly or detachably connected to the housing 1110. The insulating base 1153 supports the stud structure. In addition, since the stud structure passes through the first guide plate, the insulating base 1153 can also provide some support for the first guide plate. The stud structure and the insulating base 1153 can be fixedly or detachably connected.

[0112] Both the first and second guide plates have connecting holes, which can be through holes or threaded holes. The stud structure is inserted into the connecting holes on the first and second guide plates, and the nut structure is threadedly connected to the protruding end of the stud structure. This forms a limiting and fixing effect between the first and second guide plates, allowing the first guide plate to contact the second guide plate and thus achieve electrical connection.

[0113] In this embodiment, the insulating seat 1153 can support the stud structure and the first conductive tab, and can insulate the stud structure and the first conductive tab from the box, thereby reducing the risk of short circuit between the stud structure and the box.

[0114] In some embodiments, referring to Figure 3 As shown in the figure, the battery device 1100 further comprises a guide assembly 1170 connected between the box 1110 and the shell 1141.

[0115] The guide assembly 1170 is used for guiding and positioning when the power distribution assembly 1140 is plugged into the installation space 1114. The guide assembly 1170 can be arranged between the box 1110 and the shell 1141. Specifically, the guide assembly 1170 can be arranged between the outer surface of the shell 1141 and the space wall (or cavity wall) of the installation space 1114. The guide direction of the guide assembly 1170 is along the depth direction of the plugging port 1115, so that when the shell 1141 enters or exits the installation space 1114, the guide structure can accurately guide the movement direction of the shell 1141 relative to the installation space 1114, thereby reducing the interference problem between the shell 1141 and the installation space 1114.

[0116] In this embodiment, the guide structure is additionally arranged between the box 1110 and the shell 1141, so that the shell 1141 can enter or exit the installation space 1114 more smoothly, the interference problem in the sliding process is reduced, and the assembly efficiency is improved.

[0117] In some embodiments, referring to Figure 3 As shown in the figure, the guide assembly 1170 comprises a first guide structure 1171 connected to the shell 1141 and a second guide structure 1172 connected to the box 1110. The first guide structure 1171 and the second guide structure 1172 are plugged together. The first guide structure 1171 can slide relative to the second guide structure 1172 along the first direction X, and the first direction X is parallel to the depth direction of the plugging port 1115.

[0118] Specifically, the first guide structure 1171 and the second guide structure 1172 are plugged together and can slide relative to each other along the first direction X. It can be seen that either the first guide structure 1171 or the second guide structure 1172 is a protruding structure, and the other is a sliding groove structure. The extension direction of the sliding groove structure is along the first direction X, and the first direction X is the depth direction of the plugging port 1115, that is, the plugging direction of the shell 1141 relative to the installation space 1114.

[0119] The first guide structure 1171 can be connected to the outer surface of the shell 1141, and the second guide structure 1172 can be connected to the space wall (or cavity wall) of the mounting space 1114, for example, the outer shape of the shell 1141 is a cube, the cube has four side surfaces arranged in parallel to the first direction X, and also has two end surfaces, and then the first guide structure 1171 can be arranged on any one side surface of the cube; correspondingly, the shape of the mounting space 1114 is also a cube, so that the mounting space 1114 is matched and plugged with the shell 1141, and the second guide structure 1172 can be matched and arranged on the wall surface of the mounting space 1114 opposite to the first guide structure 1171.

[0120] In the embodiment, the guide assembly 1170 adopts a combined form of the first guide structure 1171 and the second guide structure 1172 which are matched and slidably connected, and has simple structure and is convenient to manufacture, and the configuration positions of the first guide structure 1171 and the second guide structure 1172 are also more flexible.

[0121] In some embodiments, referring to FIG. 11, Figure 7 As shown in the figure, the battery device 1100 further includes a limiting assembly 1160 connected between the shell 1141 and the box body 1110, and the limiting assembly 1160 is used to limit the movement of the shell 1141 relative to the box body 1110 along the second direction Y, and the second direction Y is perpendicular to the depth direction of the plug-in interface 1115.

[0122] Specifically, the limiting assembly 1160 is used to limit the movement of the shell 1141 relative to the box body 1110 along the second direction Y, and the second direction Y is perpendicular to the depth direction of the plug-in interface 1115, and for the convenience of description, the depth direction of the plug-in interface 1115 is defined as the first direction X. Since the shell 1141 needs to be smoothly plugged into the mounting space 1114, it can be understood that the outer diameter size of the plug-in interface 1115 should be greater than the outer diameter size of the shell 1141, and it can be understood that a gap space is formed between the space wall of the mounting space 1114 or the mouth wall of the plug-in interface 1115 and the outer surface of the shell 1141. Without the limiting assembly 1160, the shell 1141 will at least shake along the second direction Y at the position of the plug-in interface 1115.

[0123] Therefore, in the example, by arranging the second limiting assembly 1160 between the shell 1141 and the box body 1110, the second limiting assembly 1160 can limit the movement of the shell 1141 relative to the box body 1110 along the second direction Y, so that the shell 1141 can not be easily moved relative to the box body 1110 along the second direction Y, and the shell 1141 is limited.

[0124] In this embodiment, the limiting assembly 1160 is arranged between the shell 1141 and the box body 1110, so that the movement of the shell 1141 relative to the box body 1110 in the second direction Y is limited, thereby reducing the shaking of the shell 1141 relative to the box body 1110, protecting the shell 1141 and reducing the noise.

[0125] In some embodiments, referring to Figure 7 As shown in the figure, the limiting assembly 1160 includes a first limiting structure 1161 connected to the shell 1141 and a second limiting structure 1162 connected to the box body 1110, and the first limiting structure 1161 and the second limiting structure 1162 are inserted and matched in the first direction X.

[0126] Specifically, either of the first limiting structure 1161 and the second limiting structure 1162 is a protruding structure, and the outer protruding extension direction of the protruding structure is along the first direction X, and the other is a groove structure, and the groove depth direction of the groove structure is also along the first direction X, so that when the shell 1141 is inserted into the mounting space 1114 of the box body 1110, the protruding structure is inserted into the groove structure, thereby limiting the movement of the shell 1141 in the direction perpendicular to the first direction X.

[0127] In this embodiment, when the shell 1141 is inserted into the mounting space 1114, the first limiting structure 1161 and the second limiting structure 1162 limit the shell 1141 in the form of insertion, thereby reducing the shaking of the shell 1141 relative to the box body 1110, protecting the shell 1141 and reducing the noise.

[0128] In some embodiments, referring to Figures 5-7 As shown in the figure, the shell 1141 includes a shell body 11413 and a panel portion 11412, the shell body 11413 has a containing space 1113, the electronic system assembly 1144 is connected to the shell body 11413, and the locking assembly 1150 is connected between the shell body 11413 and the box body 1110; the panel portion 11412 is connected to the shell body 11413, the shell body 11413 is inserted into the mounting space 1114, the panel portion 11412 is exposed to the mounting space 1114, and the edge of the panel portion 11412 extends to the outer periphery of the insertion port 1115 and is connected to the surface of the shell body 11413.

[0129] Specifically, the shell body 11413 is a main body part of the shell 1141, which can be made of a plate structure, and is inserted into the installation space 1114 when the power distribution assembly 1140 is connected to the box body 1110. The shell body 11413 and the space wall of the installation space 1114 or the mouth wall (or the mouth wall surface) of the insertion port 1115 have a gap space therebetween, which allows the shell body 11413 to enter the installation space 1114 more smoothly, so as to reduce the interference between the side wall of the shell body 11413 and the space wall of the installation space 1114 or the mouth wall of the insertion port 1115.

[0130] In the case where the installation space 1114 is in communication with the accommodation space 1113, the presence of the gap space affects the sealing of the battery device 1100. Therefore, the panel part 11412 is added, which is a plate structure exposed outside the shell body 11413 and the box body 1110. The panel part 11412 is connected to the shell body 11413, and forms the exposed surface of the shell 1141 after the shell body 11413 is inserted into the installation space 1114. The edge of the panel part 11412 can extend to the outer periphery of the insertion port 1115, so that the edge of the panel part 11412 can cover the opening position of the gap space, thereby shielding and sealing the gap space outside the box body 1110, and improving the sealing of the battery device 1100.

[0131] The panel part 11412 is connected to the box wall around the insertion port 1115 of the installation space 1114, and can be connected to the box wall by a fastening assembly to achieve detachable connection between the panel part 11412 and the shell 1141 and the box wall.

[0132] In addition, the limiting assembly 1160 can be connected between the panel part 11412 and the box wall. Specifically, the first limiting structure 1161 is connected to the side of the panel part 11412 facing the box wall, which can be a protruding structure extending outward from the surface of the panel part 11412 in the depth direction (i.e., the first direction X) of the insertion port 1115. The second limiting structure 1162 is connected to the box wall around the insertion port 1115 of the installation space 1114, which can be a groove structure. The protruding structure and the groove structure are inserted and matched.

[0133] Further, the operation opening 11415 is formed on the panel portion 11412, and the operation opening 11415 is a through hole formed on the panel portion 11412. When the panel portion 11412 is attached to or opposite to the shell wall of the shell body 11413, the operation opening 11415 also needs to be formed on the shell wall opposite or attached to the panel portion 11412, that is, the operation opening 11415 penetrates the panel portion 11412 and the shell wall to extend into the accommodation space 1113.

[0134] In this embodiment, by additionally providing the panel portion 11412, after the shell body 11413 of the shell 1141 is inserted into the mounting space 1114, the panel portion 11412 can seal the gap between the shell body 11413 and the mounting space 1114 at the position of the insertion port 1115 of the mounting space 1114, thereby facilitating improvement of the sealing performance of the battery device 1100.

[0135] In some embodiments, referring to Figures 7-9 As shown in the figure, the box body 1110 includes a frame body 1117 and a cover body 1116, the cover body 1116 is detachably connected to the frame body 1117 and cooperates with the frame body 1117 to form the accommodation space 1113; the cover body 1116 is detachably connected to the frame body 1117 and cooperates with the frame body 1117 to form the accommodation space 1113 and the mounting space 1114; the insertion port 1115 is formed on the frame body 1117, and the shell 1141 is provided with an open port 11414 which is in communication with the accommodation cavity 11411 and is opposite to the cover body 1116.

[0136] Specifically, the frame body 1117 and the cover body 1116 are connected to cooperatively form the accommodation space 1113 and the mounting space 1114, so it can be understood that the frame body 1117 can include a bottom plate portion and a circumferential frame portion which is annularly arranged around the center of the box body 1110 and connected to the bottom plate portion, and the cover body 1116 is located opposite to the bottom plate portion. When the accommodation space 1113 and the mounting space 1114 are two independent spaces, the frame body 1117 also needs to be connected with a beam structure or a partition structure, so that the beam structure or the partition structure isolates the accommodation space 1113 and the mounting space 1114.

[0137] The insertion port 1115 is formed on the frame body 1117, and the frame body 1117 can be made of a plate structure. When the outer portion of the frame body 1117 forms a cubic shape, the insertion port 1115 can be formed on any circumferential side plate (or circumferential side wall) of the frame body 1117.

[0138] For the power distribution assembly 1140, an opening 11414 is provided on the housing 1141. The opening 11414 is connected to or penetrates the receiving cavity 11411. The opening 11414 is used to allow the operator's hand or handheld tool to enter. When maintenance is required, the operator removes the cover 1116 from the frame 1117, thus exposing the installation space 1114. Since the housing 1141 is located within the installation space 1114, it is known that the housing 1141 is exposed. Furthermore, since the position of the housing 1141 relative to the cover 1116 forms an opening 11414, it is known that the opening 11414 is exposed. Since the electronic system component 1144 is installed within the accommodating cavity 11411, and the second guide 1143, locking assembly 1150, etc. are all located within the installation space 1114, the second guide 1143 and locking assembly 1150 can also be located within the accommodating cavity 11411. Thus, the electronic system component 1144, the second guide 1143, and the locking assembly 1150 are all in an exposed state, which facilitates the operator's installation and removal of the above components.

[0139] In this embodiment, the housing 1110 adopts a combination of a cover 1116 and a frame 1117. Opening the cover 1116 exposes the installation space 1114 and the accommodating cavity 11411 through the opening 11414. This allows the electronic system components 1144, the second conductor 1143, and the locking assembly 1150 to be exposed as much as possible in a position accessible to the operator. Thus, when the cover 1116 is opened, the power distribution component 1140 can be repaired, making maintenance more convenient.

[0140] In some embodiments, refer to Figure 8 and Figure 9 As shown, the cover 1116 includes a first sub-cover 11161 and a second sub-cover 11162 connected to the first sub-cover 11161. Both the first sub-cover 11161 and the second sub-cover 11162 are detachably connected to the frame 1117. The first sub-cover 1116 is disposed opposite to the battery cell assembly 1120, and the second sub-cover 1116 is disposed opposite to the opening 11414.

[0141] Specifically, the cover 1116 may include at least two parts, namely a first sub-cover 11161 and a second sub-cover 11162. The first sub-cover 11161 is connected to the frame 1117 to jointly enclose the accommodating space 1113, and the second sub-cover 11162 is connected to the frame 1117 to jointly enclose the installation space 1114. Therefore, it can be seen that the first sub-cover 1116 and the second sub-cover 1116 can be opened separately. Opening the first sub-cover 11161 exposes the accommodating space 1113 and the battery cell assembly 1120 located therein, allowing for the installation and removal of the battery cell assembly 1120. Opening the second sub-cover 11162 exposes the installation space 1114 and the power distribution assembly 1140, allowing for the installation, removal, or maintenance of the power distribution assembly 1140.

[0142] In this embodiment, the cover 1116 is designed such that the first sub-cover 11161 and the second sub-cover 11162 are independently detachably connected to the frame 1117. This allows the second sub-cover 1116 to be opened separately when the power distribution component 1140 needs to be repaired. This exposes the power distribution component 1140 and its internal electronic system components 1144, the second conductor 1143, and the locking component 1150, thus minimizing the impact on the environment of the battery cell assembly 1120 and protecting the battery cell assembly 1120.

[0143] In some embodiments, refer to Figure 8 and Figure 9 As shown, the housing 1110 includes a first sub-housing section 1118 and a second sub-housing section 1119. The first sub-housing section 1118 has an accommodating space 1113, and the second sub-housing section 1110 has an installation space 1114. The housing 1141 and the first guide member 1130 are both connected to the second sub-housing section 1110, and the second sub-housing section 1119 is detachably connected to the first sub-housing section 1118.

[0144] Specifically, for the box 1110, the box 1110 can be used to accommodate the battery monomer assembly 1120, and the box 1110 can also be used to accommodate the power distribution assembly 1140, and the battery monomer assembly 1120 and the power distribution assembly 1140 are respectively accommodated in different spaces of the box 1110, so that the box 1110 can be designed as two detachably connected parts, i.e., a first sub-box part 1118 and a second sub-box part 1119, the accommodating space 1113 is opened in the first sub-box part 1118, so that the first sub-box part 1118 is used to accommodate the battery monomer assembly 1120; the mounting space 1114 is opened on the second sub-box part 1110, so that the second sub-box part 1119 is used to accommodate the power distribution assembly 1140. When the power distribution assembly 1140 is maintained, the second sub-box part 1110 can be separately detached from the first sub-box part 1110, so that the entire box 1110 with a large volume does not need to be opened, etc., so that the maintenance is more convenient.

[0145] In the embodiment, the box 1110 is combined and connected by the first sub-box part 1118 and the second sub-box part 1119, so that when the power distribution assembly 1140 is maintained, the second sub-box part 1119 can be separately detached, so that the maintenance is more convenient and labor-saving.

[0146] In one specific embodiment, referring to Figures 2-9As shown, the battery device 1100 comprises a battery cell assembly 1120, a box 1110, a first lead connector 1130, a power distribution assembly 1140 and a locking assembly 1150; wherein the box 1110 has a containing space 1113 and a mounting space 1114, the battery cell assembly 1120 is contained in the containing space 1113, and the box 1110 is provided with a plug interface 1115 which is in communication with the mounting space 1114; the first lead connector 1130 is connected to the box 1110 and located in the mounting space 1114, and the first lead connector 1130 is electrically connected with the battery cell assembly 1120; the power distribution assembly 1140 comprises a shell 1141, an electronic system assembly 1144 and a second lead connector 1143, the shell 1141 has a containing cavity 11411, the electronic system assembly 1144 is connected to the shell 1141 and contained in the containing cavity 11411, and the second lead connector 1143 is electrically connected to the electronic system assembly 1144; the shell 1141 is connected to the box 1110 and plugged into the mounting space 1114 through the plug interface 1115, and the second lead connector 1143 is electrically connected with the first lead connector 1130; the shell 1141 has an operation port 11415; the locking assembly 1150 is connected between the shell 1141 and the box 1110, or the locking assembly 1150 is connected between the first lead connector 1130 and the second lead connector 1143; the operation port 11415 penetrates to the locking assembly 1150; the second lead connector 1143 is contained in the containing cavity 11411, the locking assembly 1150 is arranged in the containing cavity 11411, the operation port 11415 penetrates into the containing cavity 11411 and is oppositely arranged with the locking assembly 1150; the power distribution assembly 1140 further comprises a cover 1142 which is detachably connected to the shell 1141, and the cover 1142 covers the operation port 11415; the first lead connector 1130 comprises a first lead tab which is electrically connected with the battery cell assembly 1120, the second lead connector 1143 comprises a second lead tab which is connected with the electronic system assembly 1144, and the first lead tab contacts with the second lead tab; the locking assembly 1150 is connected between the first lead tab and the second lead tab; the first locking structure 1151 is a stud structure, the second locking structure 1152 is a nut structure, and the locking assembly 1150 further comprises an insulating seat 1153 which is connected to the box 1110, and the stud structure is connected to the insulating seat 1153; the battery device 1100 further comprises a guide assembly 1170 which is connected between the box 1110 and the shell 1141; the battery device 1100 further comprises a limiting assembly 1160 which is connected between the shell 1141 and the box 1110, and the limiting assembly 1160 is used for limiting the shell 1141 to move along a second direction Y relative to the box 1110, and the second direction Y is perpendicular to the port depth direction of the plug interface 1115.The shell 1141 includes a shell body 11413 having the accommodation space 1113, and an electronic system assembly 1144 connected to the shell body 11413, and a locking assembly 1150 connected between the shell body 11413 and the box 1110; and a panel portion 11412 connected to the shell body 11413, the shell body 11413 being inserted into the mounting space 1114, the panel portion 11412 being exposed to the mounting space 1114, and the edge of the panel portion 11412 extending to the outer periphery of the insertion port 1115 and being connected to the surface of the shell body 11413; the box 1110 includes a frame body 1117 and a cover body 1116, the cover body 1116 being detachably connected to the frame body 1117 and jointly surrounding the accommodation space 1113 and the mounting space 1114; the insertion port 1115 is formed in the frame body 1117, and the shell 1141 is provided with an open port 11414 in communication with the accommodation cavity 11411, the open port 11414 being opposite to the cover body 1116; the cover body 1116 includes a first sub-cover portion 11161 and a second sub-cover portion 11162 connected to the first sub-cover portion 11161, and the first sub-cover portion 11161 and the second sub-cover portion 11162 are both detachably connected to the frame body 1117, the first sub-cover portion 11161 being opposite to the battery monomer assembly 1120, and the second sub-cover portion 11162 being opposite to the open port 11414.

[0147] According to some embodiments of the present application, the present application further provides an energy storage device, which comprises 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.

[0148] Specifically, the energy storage device can include one or more battery clusters to improve the voltage and capacity of the energy storage device. The battery cluster can include a plurality of battery devices 1100, and the plurality of battery devices 1100 are connected in series through the busbar component to improve the voltage of the energy storage device. When the energy storage device includes a plurality of battery clusters, the plurality of battery clusters are connected in parallel to improve the capacity of the energy storage device.

[0149] The energy storage device can be used in energy storage power stations, wind power systems, solar power systems, mobile power systems, or temporary power supply systems, etc. The energy storage device can store electrical energy as needed and output electrical energy at appropriate times. For example, the energy storage device can store electrical energy during the low electricity consumption period, and provide electrical energy for related users or electrical equipment during the peak electricity consumption period. The energy storage system provided by the embodiments of the present application can be any power system that needs to use the energy storage device.

[0150] In some embodiments, the energy storage device is an energy storage container or an energy storage cabinet.

[0151] In some embodiments, the energy storage device can include a cabinet and one or more battery clusters, the battery clusters being housed in the cabinet.

[0152] In some embodiments, the energy storage device can include a thermal management module, a master control module, a general control module, a power distribution module, a fire control module, and the like.

[0153] As an example, the thermal management module can include a liquid cooling unit that provides cooling liquid to each battery device 1100 through a pipeline for adjusting the temperature of the battery monomer.

[0154] As an example, the master control module can serve as a battery management unit of the battery cluster for monitoring and managing the battery cluster. The master control module can monitor information such as current, voltage, power, or temperature of the battery cluster. For example, the charging and discharging current, voltage, and the like of the battery cluster can be controlled. The master control module includes a slave battery management unit SBMU (Slave Battery Management Unit, SBMU), a fusion switch, and the like.

[0155] As an example, the general control module can serve as a battery management unit of the energy storage device for monitoring and managing the energy storage device. The general control module can monitor information such as current, voltage, power, state of charge, or temperature of the energy storage device. For example, the charging and discharging current, voltage, and the like of the energy storage device can be controlled. As an example, the general control module includes an insulation monitoring module IMM (Insulation Monitoring Module, IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU), an Ethernet ETH (EtherNet, ETH), and an optical fiber conversion module, and the like.

[0156] As an example, the fire control module includes a control panel, a detector, an alarm device, and the like, for detecting, alarming, or extinguishing the energy storage system.

[0157] As an example, the power distribution module can be used to distribute power to the modules that need power in the energy storage device.

[0158] According to some embodiments of the present application, the present application also provides an energy storage system, which includes a power conversion device and an energy storage device in the above embodiments, the power conversion device being used to electrically connect a power generation device and the energy storage device.

[0159] In some embodiments, the energy storage system can include one or more energy storage devices and a power converter system (PCS) connected between the power generation device and the energy storage devices. The power generation device is configured to generate electric energy, and the electric energy generated by the power generation device can be stored in the energy storage devices through the power converter system. As an example, the power generation device can be a solar panel, a hydroelectric power generation device, a fire power generation device, a wind power generation device, etc. The specific type of the power generation device is not limited in the present application.

[0160] According to some embodiments of the present application, referring to Figure 1 The present application also provides a power consumption device including the battery device 1100 in the above embodiments, the energy storage device in the above embodiments, or the energy storage system in the above embodiments, and the battery device 1100 is configured to store or provide electric energy.

[0161] The technical solutions described in the embodiments of the present application are applicable to various power consumption devices using battery cells, such as mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles 1000, ships, and spacecraft, such as aircraft, rockets, space shuttles, and spacecraft.

[0162] The examples of the power consumption device in the present application are based on the examples of the battery device 1100 described above, and the examples of the power consumption device contain all the technical effects of the examples of the battery device 1100 described above, which will not be repeated here.

[0163] According to some embodiments of the present application, the present application also provides a charging network including a charging pile and the energy storage device in the above embodiments or the energy storage system in the above embodiments, and the energy storage device is configured to provide electric energy for the charging pile.

[0164] For example, the charging network includes a charging pile and an energy storage device, and the charging pile is electrically connected to the energy storage device, and the energy storage device is configured to provide electric energy for the charging pile. The charging pile and the battery device 1100 in the energy storage device are electrically connected through a cable, and the battery device 1100 can provide the electric energy stored therein to the charging pile. The charging pile has one or more connectors for connecting to a power consumption device (such as a vehicle 1000), so as to charge the power consumption device.

[0165] The energy storage device can be located inside the charging pile (such as a charging and storage integrated machine) or outside the charging pile.

[0166] The above merely describes preferred embodiments of the present application, and only specifically describes the technical principles of the present application, and these descriptions are only for explaining the principles of the present application, and cannot be explained as limitations on the protection scope of the present application in any way. Based on the explanations here, any modifications, equivalent replacements and improvements made within the spirit and principles of the present application, and other specific embodiments of the present application that can be thought of by those skilled in the art without creative labor, should be included in the protection scope of the present application.

Claims

1. A battery device (1100) characterized by, The application relates to a battery module assembly and a power distribution assembly. The battery module assembly (1120) is accommodated in the accommodating space (1113) of the box body (1110), and the box body (1110) is provided with a plug interface (1115) which is in communication with the mounting space (1114). The first lead connector (1130) is connected to the box body (1110) and located in the mounting space (1114), and the first lead connector (1130) is electrically connected to the battery module assembly (1120). The power distribution assembly (1140) comprises a shell (1141), an electronic system assembly (1144) and a second lead connector (1143), the shell (1141) has an accommodating cavity (11411), the electronic system assembly (1144) is connected to the shell (1141) and accommodated in the accommodating cavity (11411), and the second lead connector (1143) is electrically connected to the electronic system assembly (1144); the shell (1141) is connected to the box body (1110) and plugged into the mounting space (1114) through the plug interface (1115), the second lead connector (1143) is electrically connected to the first lead connector (1130), and the shell (1141) is provided with an operation port (11415). The lock assembly (1150) is connected between the shell (1141) and the box body (1110), or the lock assembly (1150) is connected between the first lead connector (1130) and the second lead connector (1143); and the operation port (11415) penetrates the lock assembly (1150). The second lead connector (1143) is accommodated in the accommodating cavity (11411), the lock assembly (1150) is arranged in the accommodating cavity (11411), and the operation port (11415) penetrates the accommodating cavity (11411) and is arranged opposite to the lock assembly (1150).

2. The battery device (1100) of claim 1, wherein, The power distribution assembly (1140) further comprises a cover (1142) which is detachably connected to the shell (1141) and covers the operation port (11415).

3. The battery apparatus (1100) of claim 1, wherein, The first lead connector (1130) comprises a second lead connector which is electrically connected to the battery module assembly (1120), the second lead connector (1143) comprises a second lead connector which is electrically connected to the electronic system assembly (1144), the first lead connector and the second lead connector are in contact connection, and the lock assembly (1150) is connected between the first lead connector and the second lead connector.

4. The battery arrangement (1100) according to any one of claims 1-3, characterized by ​ 5. The battery device (1100) of claim 4, wherein, The locking assembly (1150) comprises a first locking structure (1151) connected to the box body (1110) and a second locking structure (1152) threadedly connected with the first locking structure (1151) to limit the first and second lead-through pieces between the first and second locking structures (1151, 1152).

6. The battery device (1100) of claim 5, wherein, Either of the first and second locking structures (1151, 1152) is a stud structure and the other is a nut structure, and the stud structure is threadedly connected with the nut structure.

7. The battery device (1100) of claim 5, wherein, The first locking structure (1151) is a stud structure, the second locking structure (1152) is a nut structure, and the locking assembly (1150) further comprises an insulating seat (1153) connected to the box body (1110), and the stud structure is connected to the insulating seat (1153).

8. The battery device (1100) according to any one of claims 1-3, characterized by The battery device (1100) further comprises a guide assembly (1170) connected between the box body (1110) and the shell (1141).

9. The battery device (1100) of claim 8, wherein, The guide assembly (1170) comprises a first guide structure (1171) connected to the shell (1141) and a second guide structure (1172) connected to the box body (1110), the first and second guide structures (1171, 1172) are insertedly fitted, the first guide structure (1171) can slide relative to the second guide structure (1172) along a first direction (X), and the first direction (X) is parallel to the depth direction of the insertion port (1115).

10. The battery device (1100) according to any one of claims 1-3, characterized in that, The battery device (1100) further comprises a limiting assembly (1160) connected between the shell (1141) and the box body (1110), and the limiting assembly (1160) is used for limiting the shell (1141) from moving relative to the box body (1110) along a second direction (Y), and the second direction (Y) is perpendicular to the depth direction of the insertion port (1115).

11. The battery device (1100) of claim 10, wherein, The limiting assembly (1160) comprises a first limiting structure (1161) connected to the shell (1141) and a second limiting structure (1162) connected to the box body (1110), and the first and second limiting structures (1161, 1162) are insertedly fitted along the second direction (Y).

12. The battery device (1100) according to any one of claims 1-3, characterized by The shell (1141) comprises a shell body (11413) and a panel portion (11412), the shell body (11413) has the accommodating space (1113), the electronic system component (1144) is connected to the shell body (11413), and the locking assembly (1150) is connected between the shell body (11413) and the box body (1110); the panel portion (11412) is connected to the shell body (11413), the shell body (11413) is inserted into the mounting space (1114), the panel portion (11412) is exposed to the mounting space (1114), and the edge of the panel portion (11412) extends to the periphery of the insertion opening (1115) and is connected to the surface of the shell body (11413).

13. The battery device (1100) according to any one of claims 1-3, characterized by The box body (1110) comprises a frame body (1117) and a cover body (1116), the cover body (1116) is detachably connected to the frame body (1117) and cooperates with the frame body (1117) to form the accommodating space (1113) and the mounting space (1114); the insertion opening (1115) is formed in the frame body (1117), and the shell (1141) is provided with an open opening (11414) which is in communication with the accommodating cavity (11411) and is arranged opposite to the cover body (1116).

14. The battery device (1100) of claim 13, wherein, The cover body (1116) comprises a first sub-cover portion (11161) and a second sub-cover portion (11162) connected to the first sub-cover portion (11161), the first sub-cover portion (11161) and the second sub-cover portion (11162) are both detachably connected to the frame body (1117), the first sub-cover portion (11161) is arranged opposite to the battery monomer assembly (1120), and the second sub-cover portion (11162) is arranged opposite to the open opening (11414).

15. The battery device (1100) according to any one of claims 1-3, characterized by The box body (1110) comprises a first sub-box portion (1118) and a second sub-box portion (1119), the first sub-box portion (1118) has the accommodating space (1113), the second sub-box portion (1119) has the mounting space (1114), the shell (1141) and the first lead connector (1130) are both connected to the second sub-box portion (1119), and the second sub-box portion (1119) is detachably connected to the first sub-box portion (1118).

16. An energy storage device, characterized by A plurality of battery devices (1100) as claimed in any one of claims 1-15 are included for storing or providing electric energy.

17. An energy storage system comprising a power conversion device and an energy storage device as claimed in claim 16, the power conversion device being configured to electrically connect a power generation device to the energy storage device.

18. An electric device comprising the battery device (1100) of any one of claims 1-15, the energy storage device of claim 16, or the energy storage system of claim 17, the battery device (1100) being used to store or provide electric energy.

19. A charging network comprising a charging post and the energy storage device of claim 16 or the energy storage system of claim 17, the energy storage device being used to provide electric energy for the charging post.

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