Battery device and electric equipment

Abstract

The utility model relates to the related technical field of batteries, and discloses a battery device and electric equipment, the battery device comprises a box body, a battery management assembly, a data transmitter and at least one battery monomer, and the battery monomer is arranged in the box body; the battery management assembly is arranged in the box body and connected with the battery monomers, and the battery management assembly is used for collecting battery data of at least one battery monomer and managing the battery monomers based on the battery data; and the data transmitter is mounted on the outer wall surface of the box body, is in communication connection with the battery management assembly, and is used for receiving the battery data and sending the battery data to the server. By installing the data transmitter on the outer side of the box body, in the process of overhauling or maintaining the data transmitter, detection and replacement of corresponding components can be directly carried out outside the box body, the box opening time and the repairing and maintaining cost are saved, the influence of box opening on the performance of the battery device can be reduced, and the convenience of overhauling or maintaining of the battery device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery, and particularly relates to a battery device and an electric equipment. BACKGROUND

[0002] The part provided in this section is merely background information of the present application and it does not necessarily relate to the prior art.

[0003] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy saving and environmental protection advantages. For electric vehicles, battery device technology is an important factor for its development.

[0004] During the use of the battery device, regular maintenance and repair are required. How to improve the convenience of maintenance and repair of the battery device has been a continuous concern in the development process of the battery device. Practical new type content

[0005] In view of the above problems, the present application provides a battery device and an electric equipment to improve the convenience of maintenance and repair of the battery device.

[0006] The first aspect of the present application provides a battery device comprising a box body, a battery management assembly, a data transmitter and at least one battery monomer, the at least one battery monomer is arranged in the box body; the battery management assembly is arranged in the box body and connected with the at least one battery monomer, the battery management assembly is used for collecting battery data of the at least one battery monomer and managing the battery monomer based on the battery data; the data transmitter is installed on the outer wall surface of the box body and is in communication connection with the battery management assembly, the data transmitter is used for receiving the battery data and sending the battery data to a server.

[0007] In the technical scheme of the embodiment of the present application, the data transmitter can realize the data transmission of the battery management assembly. By installing the data transmitter on the outside of the box body, during the repair or maintenance of the data transmitter, the detection and replacement of the corresponding components can be directly performed outside the box body, which saves the opening time, repair and maintenance cost, and can reduce the influence of opening the box on the performance of the battery device, and improves the convenience of repair or maintenance of the battery device.

[0008] In addition, the battery device according to the present application can also have the following additional technical features:

[0009] In some embodiments of the present application, the box is provided with an energy storage compartment and a functional compartment, the at least one battery cell is arranged in the energy storage compartment, and the battery management assembly is arranged in the functional compartment. The box has a first wall surrounding the functional compartment, and the data transmitter is mounted on the outer wall surface of the first wall. The data transmitter is mounted on the first wall surrounding the functional compartment of the box, facilitating the connection between the data transmitter and the battery management assembly.

[0010] In some embodiments of the present application, at least part of the circumferential side wall of the box is arranged as the first wall. In some embodiments of the present application, the data transmitter comprises a box body and a data transmission assembly, the data transmission assembly is arranged in the box body, and the box body is connected with the box. The box body can provide better waterproof, dustproof, and anti-misoperation protection for the data transmission assembly. The data transmission assembly is connected with the box through the box body, which is convenient to operate and reduces the possibility of damage to the data transmission assembly due to installation and disassembly.

[0011] In some embodiments of the present application, the box body has a first side surface facing the outer wall surface of the box. A sealing member is arranged between the first side surface and the outer wall surface, and the sealing member is used to seal the gap between the first side surface and the outer wall surface. By arranging the sealing member between the first side surface and the corresponding outer wall surface of the box, the gap between the outer wall surface of the box and the data transmitter can be reduced, and the protection performance of the battery device is improved.

[0012] In some embodiments of the present application, the sealing member comprises a sealing gasket, which is arranged around the edge region of the first side surface along the circumference of the first side surface. By arranging the sealing gasket, the gap between the outer wall surface of the box and the data transmitter can be reduced, and the protection performance of the battery device is improved.

[0013] In some embodiments of the present application, the sealing member comprises a sealing glue. By arranging the sealing glue, the gap between the outer wall surface of the box and the data transmitter can be reduced, and the protection performance of the battery device is improved. In addition, the sealing glue also has certain bonding and fixing properties, which improves the fastening effect of the data transmitter and the box.

[0014] In some embodiments of the present application, the first side surface is provided with a glue filling groove around the circumference of the first side surface, and the glue filling groove is filled with the sealing glue. By arranging the glue filling groove, the temporary arrangement of the sealing glue is facilitated during the assembly of the data transmitter to the box, and the possibility of overflow of the sealing glue polluting the battery device is reduced. Furthermore, the glue layer of the sealing glue is thick by filling the glue filling groove, which can improve the sealing effect.

[0015] In some embodiments of the present application, the data transmitter is detachably mounted on the outer wall of the box. By detachably connecting the data transmitter with the outer wall of the box, the convenience of dismounting and mounting the data transmitter is improved.

[0016] In some embodiments of the present application, the data transmitter is connected with the box through a fastener. The data transmitter is connected with the box through the fastener, which is convenient to dismount and mount, and has good connection stability.

[0017] In some embodiments of the present application, the data transmission assembly includes a data transmission component and a data processing component, the data transmission component is connected with the battery management assembly through the data processing component, the data processing component is used for receiving the battery data and filtering the battery data, and the data transmission component is used for sending the filtered battery data to a server. The external data transmitter integrates the data transmission component and the data processing component, so that the components related to the data transmission of the battery device are all external to the box, which facilitates the maintenance, repair and dismounting of the data transmission component and the data processing component, and saves the space in the box of the battery device.

[0018] In some embodiments of the present application, the data transmission assembly further includes a positioning component connected with the data transmission component, the positioning component is configured to obtain the position information of the battery device and send the position information to the data transmission component. The positioning information of the positioning component can be sent to the server through the data transmission component. By setting the positioning component, the position of the battery device can be obtained, the battery device can be positioned, the battery device can be easily found, and the possibility of losing the battery device is reduced.

[0019] In some embodiments of the present application, the data transmitter further includes an antenna electrically connected with the data transmission assembly, the antenna is used to enhance the signal strength of the data transmission assembly, the antenna is arranged in the box body, or part of the box body is arranged as the antenna. The external data transmitter integrates the data transmission component, the data processing component and the antenna, which has simple structure, convenient assembly, and makes the components related to the data transmission of the battery device all external to the box, which facilitates the maintenance, repair and dismounting of the data transmission component and the data processing component, and saves the space in the box of the battery device.

[0020] In some embodiments of the present application, the antenna is mounted in the box body, and the part of the box body in the signal transmission path of the antenna is arranged as a non-signal shielding part. The signal transmission stability of the antenna is improved.

[0021] In some embodiments of the present application, the box is divided into a first compartment and a second compartment, the data transmission component is arranged in the second compartment, the antenna is arranged in the first compartment, and the part of the box surrounding the first compartment is arranged as a non-signal shielding part. By arranging the data transmission component and the antenna in separate compartments, the components can be arranged reasonably, and the mutual interference between the components is reduced. In addition, the arrangement direction of the first compartment and the second compartment can be perpendicular to the arrangement direction of the data transmission device and the outer wall surface where the data transmission device is arranged, so that the data transmission device occupies the width and length directions of the corresponding wall of the box as much as possible, thereby reducing the problem of large overall space occupation of the battery device caused by the external data transmission device.

[0022] In some embodiments of the present application, a wire hole is arranged on the box, the data transmission device and the battery management component are connected in communication through a wire harness, and the wire harness is arranged through the wire hole. The data transmission device and the battery management component are connected in wired connection through the wire harness (second wire harness), which not only improves the data transmission stability between the data transmission device and the battery management component, but also provides power for the data transmission device through the wire harness (second wire harness).

[0023] In some embodiments of the present application, the data transmission device is mounted on the wall of the box where the wire hole is arranged, which can simplify the wiring path of the wire harness (second wire harness) and the connection between the wire harness and the data transmission device, reduce the possibility of exposure of the wire harness, and improve the connection reliability of the wire harness and the data transmission device.

[0024] In some embodiments of the present application, the battery device further comprises a sealing member for sealing the gap between the wire harness and the hole wall of the wire hole. By arranging the sealing member, the sealing performance of the box can be improved.

[0025] In some embodiments of the present application, the data transmission device comprises a box body and a data transmission component arranged in the box body, the wire harness is connected in communication with the data transmission component, the box body is provided with a mounting hole, the box body covers the wire hole, and the mounting hole is in position correspondence with and communication with the wire hole, and the wire harness is arranged through the mounting hole and the wire hole. By arranging the mounting hole in position correspondence with the wire hole, the wire harness (second wire harness) can enter the box body from the mounting hole after being arranged out of the wire hole, and the wire harness (second wire harness) can not be exposed, which is aesthetically pleasing and structurally simple, and reduces the possibility of damage caused by exposure of the wire harness (second wire harness).

[0026] In some embodiments of the present application, the wire harness is detachably connected with the data transmission device. By arranging the wire harness (second wire harness) and the data transmission device in detachable connection, the replacement or maintenance of the data transmission device is facilitated.

[0027] In some embodiments of the present application, the data transmission device is provided with a first connector, the wiring harness is provided with a second connector, and the first connector is inserted into the second connector. The wiring harness (referring to the second wiring harness) is inserted into the data transmission device through the first connector and the second connector to achieve connection, facilitating replacement or maintenance of the data transmission device.

[0028] In some embodiments of the present application, the data transmission device includes a box body and a data transmission assembly arranged in the box body, the data transmission assembly is connected with a first connector, the box body is divided into a second compartment and a third compartment, the data transmission assembly is arranged in the second compartment, the first connector is arranged on one side of the second compartment adjacent to the third compartment, and the second connector is arranged in the third compartment. By arranging the data transmission assembly and the second connector in separate compartments, the components can be arranged reasonably, and the mutual interference between the components can be reduced. The arrangement direction of the second compartment and the third compartment can be perpendicular to the arrangement direction of the outer wall surface of the data transmission device, so that the data transmission device occupies the width and length directions of the corresponding wall of the box body as much as possible, and the problem of large overall space occupation of the battery device due to the external data transmission device can be reduced.

[0029] In some embodiments of the present application, the data transmission device includes a wireless communication component.

[0030] The second aspect of the present application provides a power-using device including the battery device of the present application or any embodiment of the present application.

[0031] The power-using device of the present application has the same beneficial effects as the battery device of the present application or any embodiment of the present application.

[0032] The above description is only a summary of the technical solutions of the present application. In order to more clearly understand the technical means of the present application, the specific embodiments of the present 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 present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0033] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become apparent to those of ordinary skill in the art. The drawings are only for the purpose of illustrating the preferred embodiments and are not considered to be limiting on the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0034] Figure 1 The structural schematic diagram of a vehicle is provided for some embodiments of the present application;

[0035] Figure 2 The exploded view of the battery device is provided for some embodiments of the present application;

[0036] Figure 3A schematic diagram of a battery cell according to some embodiments of the present application;

[0037] Figure 4 A schematic diagram of an electrical connection of a battery device and a power consuming device according to some embodiments of the present application;

[0038] Figure 5 A schematic diagram of an assembly of a part of a battery device and a data transmitter according to some embodiments of the present application from one perspective;

[0039] Figure 6 A schematic diagram of an assembly of a part of a battery device and a data transmitter according to some embodiments of the present application from another perspective;

[0040] Figure 7 A schematic diagram of an assembly of a part of a battery device and a data transmitter according to some embodiments of the present application from another perspective;

[0041] Figure 8 A schematic diagram of a data transmitter according to some embodiments of the present application;

[0042] Figure 9 A schematic diagram of a data transmitter according to some embodiments of the present application from one perspective;

[0043] Figure 10 A schematic diagram of a data transmitter according to some embodiments of the present application from another perspective;

[0044] Figure 11 A schematic diagram of a data transmitter according to some embodiments of the present application from one direction;

[0045] Figure 12 A schematic diagram of a data transmitter according to some embodiments of the present application from another direction;

[0046] Figure 13 A schematic diagram of a connection of a battery management assembly, a data transmitter and a cloud server according to some embodiments of the present application;

[0047] Figure 14 A schematic diagram of an assembly of a first wall and a second wire harness according to some embodiments of the present application. The following reference signs are used in the detailed description of the drawings:

[0048] 1. a cloud server;

[0049] 1000. a vehicle; 10. a battery device; 11. a first box; 12. a second box; 13. a box; 131. an energy storage compartment; 132. a functional compartment; 133. a first wall; 134. a wire passing hole; 135. a reinforcing cylinder; 20. a controller; 30. a motor; 40. a vehicle end high voltage box; 41. a master control module; 50. a first wire harness;

[0050] 100, battery cell assembly; 101, battery cell; 110, housing; 111, casing; 112, end cap; 113, electrode terminal; 120, electrode assembly; 121, tab;

[0051] 200, battery management assembly;

[0052] 300, data transmission device; 310, box body; 311, first side; 3111, recess; 312, second side; 313, first compartment; 314, second compartment; 315, third compartment; 316, base; 317, cover body; 318, partition; 319, mounting hole; 320, data transmission assembly; 321, data transmission component; 322, data processing component; 323, positioning component; 330, antenna; 340, sealing component; 341, sealing gasket; 342, sealing glue; 343, glue filling groove; 344, sealing gasket; 350, fastener; 351, bolt assembly; 352, first assembly hole; 353, second assembly hole; 360, sealing member; 361, flexible pad; 3611, flexible sleeve; 362, pressing plate; 370, first joint;

[0053] 400, second wire harness; 410, second joint; 420, electric wire; 430, communication line; 440, third joint. DETAILED DESCRIPTION

[0054] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0055] 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.

[0056] 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.

[0057] 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 all referring to a common embodiment, or an embodiment that is independent of other embodiments. One of ordinary skill in the art will recognize that an implementation including“an embodiment” described herein can include one or more elements, and combinations of elements, from the various embodiments described herein.

[0058] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which can represent three relationships, for example, A and / or B, which can represent three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character“ / ” herein generally represents that the front and rear associated objects have an“or” relationship.

[0059] In the description of the embodiments of the 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).

[0060] In the description of the embodiments of the 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 based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the 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 application.

[0061] In the description of the embodiments of the 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 application can be understood according to the specific circumstances.

[0062] With the vigorous development of new energy industry, the capacity of battery device is getting larger and larger, and the performance requirement of battery device is getting higher and higher. The battery device usually includes one or more battery monomers. The battery management assembly can be arranged in the battery device. The battery management assembly can monitor the state of the battery monomer during use of the battery device, and adaptively manage the battery monomer.

[0063] The battery device can also be provided with a data transmitter. The data transmitter can transmit the working condition data of the battery device collected by the battery management component to a cloud server, and can also transmit the instructions issued by the cloud server to the battery management component.

[0064] During use of the battery device, regular maintenance or repair is usually required. When designing the battery device, it is generally considered that the data transmitter and other components of the battery device can have the same maintenance or repair period. However, based on research findings, as the overall life of the battery device improves, the possibility of damage to the data transmitter will increase in the later stage of use of the battery device. Thus, the data transmitter needs to be frequently repaired or even replaced in the later stage of use of the battery device. Moreover, research has also found that as technology advances, the communication technology of the data transmitter is updated and iterated faster. Before the service life of the battery device is reached, the battery device can need to replace a new generation of data transmitter. Thus, the data transmitter can need to be regularly repaired or replaced individually. However, when the data transmitter of the battery device is repaired or replaced individually, the convenience is poor, resulting in an increase in the repair and maintenance cost of the battery device.

[0065] Based on the above research, the application provides a battery device. The data transmitter of the battery device is arranged on the outer wall surface of the box body of the battery device, so that the data transmitter is externally arranged. The data transmitter can be independently repaired or replaced without affecting the various components inside the box body. When the data transmitter needs to be repaired or replaced, the detection and replacement of the corresponding components can be directly performed outside the box body, thereby saving the opening time of the box and the maintenance and repair cost, reducing the influence of opening of the box on the performance of the battery device, and improving the convenience of repair or maintenance of the battery device.

[0066] The battery device disclosed in the embodiments of the application can be used in an electrical equipment. The electrical equipment can use the battery device disclosed in the application to form a power supply system.

[0067] The embodiments of the application provide an electrical equipment using the battery device as a power supply. The electrical equipment can be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an electric toy, an electric tool, an electric vehicle, an electric car, a ship, a spacecraft, and the like. 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 airplane toy. The spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft.

[0068] It should be understood that the battery device described in the embodiments of the application is not only limited to the above-described electrical equipment, but can also be applied to all equipment using the battery device. However, for the sake of brevity of description, the following embodiments are described by taking an electric vehicle as an example.

[0069] Please refer toFigure 1 , Figure 1 A structural diagram of a vehicle is provided for some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle, which can be a pure electric vehicle, a hybrid vehicle, or a range extended vehicle, etc. The vehicle 1000 is internally provided with a battery apparatus 10, which can be arranged at the bottom, head or tail of the vehicle 1000. The battery apparatus 10 can be used for power supply of the vehicle 1000, for example, the battery apparatus 10 can be used as an operating power source of the vehicle 1000. The vehicle 1000 can further include a controller 20 and a motor 30, the controller 20 being used to control the battery apparatus 10 to supply power to the motor 30, for example, for the working power demand of the vehicle 1000 during starting, navigation and driving.

[0070] In some embodiments of the present application, the battery apparatus 10 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.

[0071] The battery apparatus 10 mentioned in the embodiments of the present application can include one or more battery cell assemblies 100 for providing voltage and capacity. The battery cell assembly 100 can include a plurality of battery cells 101 connected in series, parallel or mixed connection through bus components.

[0072] In some embodiments, the battery cell assembly 100 is usually formed by arranging a plurality of battery cells 101.

[0073] As an example, the battery cell assembly 100 can be a battery module formed by arranging and fixing a plurality of battery cells 101 into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells 101 with a cable tie.

[0074] In some embodiments, as shown in Figure 2 , Figure 2 A split diagram of the battery apparatus of some embodiments of the present application is provided, the battery apparatus 10 can be a battery pack, which includes a box 13 and one or more battery cell assemblies 100, the battery cell assemblies 100 being accommodated in the box 13.

[0075] As an example, the battery cell assembly 100 can be a battery module, and the battery cell assembly 100 can be accommodated in the box 13 by fixing the battery module in the box 13.

[0076] As an example, the battery cell assembly 100 can also be housed in the housing 13 by directly fixing multiple battery cells 101 to the housing 13.

[0077] As an example, such as Figure 2 As shown, the housing 13 may include a first housing 11 and a second housing 12. The first housing 11 and the second housing 12 are fastened together to form a closed space inside the housing 13 to house the battery cell assembly 100. Here, "closed" refers to covering or closing, which can be sealed or unsealed. The first housing 11 may be a top cover or a bottom plate.

[0078] As an example, the housing 13 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 13 forms an enclosed space to house the battery cell assembly 100.

[0079] In some embodiments, the housing 13 may be part of the chassis structure of the vehicle 1000. For example, a portion of the housing 13 may be at least a portion of the floor of the vehicle 1000, or a portion of the housing 13 may be at least a portion of the crossbeams and longitudinal beams of the vehicle 1000.

[0080] In some embodiments, battery device 10 refers to an energy storage device, which includes a cabinet with a door on at least one side. The energy storage device includes energy storage containers, energy storage cabinets, etc.

[0081] In this embodiment of the application, the battery cell 101 can be a secondary battery. A secondary battery refers to a battery cell 101 that can be used again after being discharged by recharging to activate the active materials.

[0082] The battery cell 101 can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments of this application are not limited to this.

[0083] As an example, the battery cell 101 can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or a battery cell of other shapes. Prismatic battery cells include prismatic battery cells, blade-shaped battery cells, and multi-prismatic batteries, such as hexagonal prismatic batteries. This application does not have any particular limitations.

[0084] like Figure 3 As shown, Figure 3A schematic diagram of a battery cell is shown in FIG. 1. The battery cell 101 generally includes a housing 110, an electrode assembly 120, and an electrode terminal 113. The electrode terminal 113 is disposed on the housing 110, and the electrode assembly 120 is disposed in the housing 110. The electrode assembly 120 includes a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode. During charging and discharging of the battery cell 101, active ions (e.g., lithium ions) are intercalated and deintercalated between the positive electrode and the negative electrode. The separator disposed between the positive electrode and the negative electrode prevents the positive electrode and the negative electrode from shorting while allowing the active ions to pass through.

[0085] The electrode assembly 120 includes a tab 121 that can conduct current from the electrode assembly 120. The tab 121 includes a positive tab and a negative tab.

[0086] The electrode terminal 113 is electrically connected to the tab 121. The electrode terminal 113 can be directly connected to the tab 121 or indirectly connected to the tab 121 through a current collector. The electrode terminal 113 can be disposed on the end cap 112 or on the housing 111.

[0087] In some embodiments, the positive electrode can be a positive electrode sheet that includes a positive current collector and a positive active material disposed on at least one surface of the positive current collector.

[0088] The positive current collector can be a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as a metal foil, a pure metal, an alloy, a surface-treated metal, including but not limited to stainless steel, copper, aluminum, nickel, titanium, or silver, etc. can be used. The composite current collector can include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (aluminum, aluminum alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material base material (e.g., a base material of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0089] As an example, the positive active material can include at least one of a lithium-containing phosphate, a lithium transition metal oxide, and a modified compound of each thereof.

[0090] In some embodiments, the negative electrode can be a negative electrode sheet that includes a negative current collector.

[0091] As an example, the negative current collector can employ a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as a metal foil, a pure metal, an alloy, a surface-treated metal, including but not limited to stainless steel, copper, aluminum, nickel, titanium, or silver, etc. can be employed. The composite current collector can include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (copper, copper alloy, nickel, nickel alloy, titanium, titanium alloy, silver, and silver alloy, etc.) on a polymer material base material (such as a base material of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0092] As an example, the negative electrode sheet can include a negative current collector and a negative active material disposed on at least one surface of the negative current collector.

[0093] As an example, the negative current collector has two surfaces opposite in the thickness direction thereof, and the negative active material is disposed on either one or both of the two opposite surfaces of the negative current collector.

[0094] As an example, the negative active material can employ a negative active material for a battery cell known in the art.

[0095] The separator is a separator film. The kind of the separator film is not particularly limited in the present application, and any known porous structure separator film having good chemical stability and mechanical stability can be selected.

[0096] As shown in Figure 4 As shown in Figure 4 is a schematic diagram of the electrical control connection of the power consuming device and the battery device according to some embodiments of the present application. The battery device 10 can further include a battery management component 200, i.e. a battery management unit, for monitoring and managing the battery cells 101. The battery management component 200 can monitor the battery data of the battery cells 101, such as the current, voltage, power, or temperature, etc. For example, the charging and discharging current, voltage, etc. of the battery cells 101 can be controlled. The battery management component 200 includes a slave battery management unit SBMU (Slave Battery Management Unit, SBMU), a fusion switch, and other modules.

[0097] Optionally, the battery device 10 further comprises a master control module 41, which can be used for monitoring and managing the battery device 10 of the electrical equipment. The master control module 41 can monitor information such as current, voltage, power, state of charge or temperature of the battery device 10. For example, the charging and discharging current, voltage, etc. of the battery device 10 can be controlled. As an example, the master control module 41 comprises an insulation monitoring module IMM (Insulation Monitoring Module, IMM), a master battery management unit MBMU (Master Battery Management Unit, MBMU) and the like.

[0098] As shown in Figure 4 The battery management assembly 200 of the battery device 10 can be electrically connected with the control unit (for example, the controller 20 of the vehicle 1000) of the electrical equipment through the master control module 41. Optionally, the control unit (for example, the controller 20 of the vehicle 1000) of the electrical equipment can be electrically connected with the master control module 41 through a wire harness (refer to the first wire harness 50), and the master control module 41 can be connected with the battery management assembly 200 of the battery device 10 through the wire harness (refer to the first wire harness 50). The wire harness (refer to the first wire harness 50) can be a CAN line, i.e. a Controller Area Network (CAN) bus, which is a multi-master serial communication network mainly used for distributed control and real-time control. It uses communication data blocks for coding, instead of traditional station address coding, so that the number of nodes in the network is not limited in theory. In the vehicle 1000, the master control module 41 can be arranged in the vehicle-end high-voltage box 40.

[0099] The battery device 10 can further comprise a data transmitter 300, which is a data communication bridge between the battery device 10 and the server, and is used for realizing communication between the battery management assembly 200 and the server. The server can be a cloud server 1, or a server of the electrical equipment, for example, the controller 20 at the vehicle end, etc. The server can also be a server of a service station or a host computer of the battery device 10, etc.

[0100] For example, the server can be a cloud server 1, which can be but is not limited to a remote control center of the battery device 10, and can remotely monitor and manage the state of the battery device 10. The data transmitter 300 can be a component for realizing remote data transmission, for example, the data transmitter 300 can be an RDB (RDB is a remote data transmission component, where R represents remote, D represents database, and B represents bridge or Box) transmitter, and the functions of the data transmitter 300 include: transmitting data of the battery device 10 to the cloud server 1, transmitting data of the vehicle 1000 to the cloud server 1 at a timing of powering off the vehicle 1000 (powering off refers to starting the power system of the vehicle 1000, including power supply of the low-voltage and high-voltage systems); controlling the instructions issued by the cloud server 1, including controlling the functions of the battery device 10, adjusting the data transmission period of the battery device 10 (transmission refers to the process of transmitting data to the cloud server 1); remotely upgrading the related software of the battery device 10, for example, the software of the battery management component 200 can be upgraded through OTA (Over-The-Air, which is a method of remotely updating device firmware or software through wireless communication technology). In some implementations, the data transmitter 300 can also have the function of positioning the location information of the battery device 10.

[0101] As Figures 2 to 4 and in combination with Figures 5 to 7 shown, Figure 5 a perspective view of the assembly of part of the box of the battery device and the data transmitter according to some embodiments of the present application, Figure 6 a perspective view of the assembly of part of the box of the battery device and the data transmitter according to some embodiments of the present application, Figure 7 a perspective view of the assembly of part of the box of the battery device and the data transmitter according to some embodiments of the present application, the battery device 10 provided by the embodiments of the present application includes a box 13, a battery management component 200, a data transmitter 300, and at least one battery cell 101, the at least one battery cell 101 is arranged in the box 13, the battery management component 200 is arranged in the box 13 and connected with the at least one battery cell 101, the battery management component 200 is used for collecting battery data of the at least one battery cell 101 and managing the battery cell 101 based on the battery data; the data transmitter 300 is installed on the outer wall surface of the box 13 and is in communication connection with the battery management component 200, and the data transmitter 300 is used for receiving the battery data and sending the battery data to a server.

[0102] The communication connection or electrical connection involved in the embodiments refers to the transmission and interaction of signals to constitute communication between connected devices, which can be wired communication connection or wireless communication connection. For example,Figure 5 and Figure 6 As shown in FIG. 1, the box 13 can be divided into an energy storage compartment 131 and a functional compartment 132. The energy storage compartment 131 is used to accommodate the battery monomer 101, and the functional compartment 132 is used to accommodate the battery management assembly 200 and other components.

[0103] The battery monomer 101 can be one or more, and all the battery monomers 101 can be arranged in the box 13.

[0104] The data transmitter 300 is arranged on the outer wall surface of the box 13, that is, the data transmitter 300 is arranged on the outside of the box 13, and the outer wall surface of the box 13 refers to the exposed wall of the box 13, that is, the side of the wall of the box 13 away from the battery monomer 101.

[0105] The data transmitter 300 can be arranged on any one of the outer wall surfaces of the box 13. For example, the data transmitter 300 can be arranged on the top wall of the box 13, or on the bottom wall or any one of the side walls of the box 13.

[0106] The data transmitter 300 and the corresponding outer wall surface can be detachably connected or non-detachably connected. The detachable connection refers to that the two connected parts (in this embodiment, the data transmitter 300 and the corresponding outer wall surface) can be disassembled and reassembled without the aid of destructive means. The detachable connection can be achieved by screwing, clamping, or other means. Optionally, the detachable connection can be achieved by bolts, screws, pins, buckles, etc. The non-detachable connection refers to that once connected, it is difficult or impossible to disassemble without damaging the components. The non-detachable connection can include welding, riveting, and bonding. It should be noted that when the data transmitter 300 and the outer wall surface of the box 13 are connected in a non-detachable manner, the data transmitter 300 can be damaged or the connecting part between the data transmitter 300 and the box 13 can be damaged when the data transmitter 300 is disassembled, so as to reduce the damage to the box 13.

[0107] For example, the data transmitter 300 can be arranged on the surface of the outer wall surface of the box 13 and protrude from the outer wall surface of the box 13.

[0108] For example, the data transmitter 300 can be embedded in the outer wall surface of the box 13. Specifically, the outer wall surface of the box 13 can be provided with a groove, and the data transmitter 300 can be arranged in the groove and located entirely in the groove, or the data transmitter 300 can be arranged in the groove and partially protrude from the groove.

[0109] The data transmitter 300 can realize data transmission of the battery management assembly 200, that is, can receive and send relevant data of the battery management assembly 200 to the cloud server 1, and can also receive and send instructions and the like sent by the cloud server 1 to the battery management assembly 200. By installing the data transmitter 300 on the outside of the box 13, during the maintenance and repair of the data transmitter 300, the detection and replacement of the corresponding components can be directly performed outside the box 13, compared with the mode in which the data transmitter 300 is arranged in the box 13 (in this mode, the top cover of the box 13 needs to be disassembled, and the opening cost is even higher than the body cost of the data transmitter 300), the opening time and the repair and maintenance cost are saved, the influence of opening on the performance of the battery device 10 is reduced, and the convenience of maintenance and repair of the battery device 10 is improved. Among them, opening refers to the process of opening the box 13 of the battery device 10 and resealing the box 13 from the open state. In addition, by installing the data transmitter 300 on the outside of the box 13, the replaceability of the data transmitter 300 is also improved. When the product of the battery device 10 is not suitable for the current network environment, for example, when the network is generally upgraded from 4G (fourth generation mobile communication technology) to 5G (fifth generation mobile communication technology), the data transmitter 300 can be directly replaced without opening the box; moreover, the data transmitter 300 is external, which can reduce the electrical components in the box 13 and improve the available space in the box 13 of the battery device 10.

[0110] According to some embodiments of the present application, optionally, as shown in Figure 5 and Figure 6 , the box 13 is provided with an energy storage compartment 131 and a functional compartment 132. At least one battery monomer 101 is arranged in the energy storage compartment 131, the battery management assembly 200 is arranged in the functional compartment 132, the box 13 has a first wall 133 surrounding the functional compartment 132, and the data transmitter 300 is installed on the outer wall surface of the first wall 133.

[0111] As shown in Figure 5 and Figure 6 , part of the top wall, part of the bottom wall and part of the circumferential side wall of the box 13 can jointly surround the functional compartment 132, and the first wall 133 can be the part of the circumferential side wall surrounding the functional compartment 132. Optionally, in some other embodiments, the first wall 133 can also be the part of the bottom wall surrounding the functional compartment 132, and can also be the part of the bottom wall surrounding the functional compartment 132.

[0112] The data transmitter 300 is installed on the first wall 133 of the box 13 surrounding the functional compartment 132, which facilitates the connection between the data transmitter 300 and the battery management assembly 200, can reduce the complexity of wiring, and the structure arrangement is more compact.

[0113] According to some embodiments of the present application, optionally, as shown in Figure 5 and Figure 6 At least part of the circumferential side wall of the box 13 is provided as the first wall 133.

[0114] That is, the side wall of the box 13 surrounding the functional compartment 132 can be provided as the first wall 133.

[0115] For example, the first wall 133 can be the rear side wall of the box 13, so that the data transmitter 300 can be shielded by the battery device 10 when the battery device 10 is assembled to the electrical equipment, improving the arrangement aesthetics of the battery device 10 and reducing the possibility of damage to the data transmitter 300 by external components.

[0116] According to some embodiments of the present application, as shown in Figures 5 to 7 and in combination with Figures 8 to 12 , Figure 8 a structural schematic diagram of the data transmitter according to some embodiments of the present application, Figure 9 a schematic diagram of the data transmitter from one perspective according to some embodiments of the present application, Figure 10 a schematic diagram of the data transmitter from another perspective according to some embodiments of the present application, Figure 11 a sectional view schematic diagram of the data transmitter from one direction according to some embodiments of the present application, Figure 12 a sectional view schematic diagram of the data transmitter from another direction according to some embodiments of the present application, optionally, the data transmitter 300 includes a box body 310 and a data transmission assembly 320, the data transmission assembly 320 is arranged in the box body 310, and the box body 310 is connected with the box 13.

[0117] The box body 310 is a supporting and accommodating component of the data transmitter 300. The box body 310 is provided with an accommodating cavity, the data transmission assembly 320 is arranged in the accommodating cavity, and the box body 310 can be assembled by two parts, which can be detachably connected, or non-detachably connected by bonding, welding, etc.

[0118] For example, the box body 310 can include a box body and a box cover, the box body is provided with an opening, and the box cover is arranged on the box body to form the accommodating cavity, wherein the box body is connected with the box 13, and the opening of the box body faces away from the box 13. The box body and the box cover can be sealed by glue and fixed by screws and the like.

[0119] For example, the box body 310 may also include a base 316 and a cover 317, with the cover 317 covering the base 316 to form a receiving cavity. The base 316 can be connected to the box body 13, and the cover 317 is located on the side of the base 316 opposite to the box body 13. The base 316 and the cover 317 can be sealed with glue and fixed with screws or other fasteners.

[0120] The data transmission component 320 is a core component for realizing data transmission, and it may include a circuit board and circuits and chips mounted on the circuit board.

[0121] In this embodiment, the data transmission component 320 is disposed inside the housing 310. The housing 310 can provide good protection against water, dust, and accidental contact for the data transmission component 320. The data transmission component 320 is connected to the enclosure 13 through the housing 310, which is convenient to operate and reduces the possibility of damage to the data transmission component 320 due to installation and disassembly.

[0122] It should be noted that in some other embodiments, the data transmitter may not have a housing. For example, a groove is provided on the outer wall of the housing, and the data transmission component of the data transmitter is directly installed in the groove. A protective cover can be provided at the opening of the groove to seal the groove.

[0123] According to some embodiments of this application, optionally, such as Figures 8 to 12 As shown, the box body 310 has a first side surface 311 facing the outer wall surface of the box body 13. A sealing member 340 is provided between the first side surface 311 and the outer wall surface (the outer wall surface of the box body 13, understood with reference to the first wall 133). The sealing member 340 is used to seal the gap between the first side surface 311 and the outer wall surface.

[0124] The first side 311 is the side on which the data transmitter 300 contacts and connects with the outer wall of the housing 13. The sealing component 340 can be a sealant 342, a gasket, a sealing washer 341, etc. The sealing component 340 can cover the entire surface of the first side 311, or it can be provided only around the circumferential edge of the first side 311.

[0125] By providing a sealing component 340 between the first side 311 and the corresponding outer wall of the housing 13, the gap between the outer wall of the housing 13 and the data transmitter 300 can be reduced by reducing the amount of dust and moisture entering, thereby improving the protection performance of the battery device 10.

[0126] According to some embodiments of this application, optionally, such as Figure 9 As shown, the sealing component 340 includes a sealing gasket 341, which is disposed around the edge region of the first side surface 311 along the circumference of the first side surface 311.

[0127] The edge region of the first side surface 311 refers to an end surface of a circumferential edge of the first side surface 311 and / or a partial region of the first side surface 311 extending inward from the end surface of the circumferential edge.

[0128] The sealing gasket 341 can have a certain elasticity, which can be made of rubber, and can play a sealing role through extrusion fitting.

[0129] For example, the sealing gasket 341 is located in the first side surface 311 and is arranged in a circle along the circumference of the first side surface 311, and the sealing gasket 341 is fixed by being pressed against the box body 13 by the data transmitter 300.

[0130] By arranging the sealing gasket 341, the gap between the outer wall surface of the box body 13 and the data transmitter 300 can be reduced, and the protection performance of the battery device 10 can be improved.

[0131] According to some embodiments of the present application, optionally, as shown in Figure 9 The sealing member 340 includes a sealing glue 342.

[0132] The sealing glue 342 can be coated on the outer wall surface of the box body 13 and / or the first outer surface of the data transmitter 300 during the assembly of the data transmitter 300 to the box body 13, and after the sealing glue 342 is air-dried, a sealing effect can be achieved.

[0133] By arranging the sealing glue 342, the gap between the outer wall surface of the box body 13 and the data transmitter 300 can be reduced, and the protection performance of the battery device 10 can be improved. In addition, the sealing glue 342 also has a certain bonding and fixing property, which improves the fastening effect of the data transmitter 300 and the box body 13.

[0134] According to some embodiments of the present application, optionally, as shown in Figure 9 The first side surface 311 is provided with a glue filling groove 343 along the circumference thereof, and the glue filling groove 343 is filled with the sealing glue 342.

[0135] By arranging the glue filling groove 343, the temporary arrangement of the sealing glue 342 is facilitated during the assembly of the data transmitter 300 to the box body 13, and the possibility of overflow of the sealing glue 342 polluting the battery device 10 is reduced. In addition, by filling the glue filling groove 343 with the sealing glue 342, the thickness of the glue layer of the sealing glue 342 is large, and the sealing effect can be improved.

[0136] According to some embodiments of the present application, optionally, the data transmitter 300 is arranged to be detachably mounted on the outer wall surface of the box body 13.

[0137] For example, the data transmitter 300 can be detachably connected to the box body 13 through the box body 310.

[0138] By detachably connecting the data transmitter 300 with the outer wall surface of the box body 13, the convenience of dismounting and mounting the data transmitter 300 can be improved.

[0139] According to some embodiments of the present application, optionally, as shown in Figure 9 and Figure 10 , the data transmitter 300 is connected with the box body 13 through the fastener 350.

[0140] The fastener 350 can be a cylindrical member such as a bolt assembly 351, a pin, or other components such as a clasp type pressing member, etc.

[0141] The fastener 350 can be provided in plurality, and the plurality of fasteners 350 are dispersedly arranged along the circumference of the box body 310. Exemplarily, the box body 310 is substantially square, and the fastener 350 is arranged at each of the four corners of the box body 310.

[0142] Exemplarily, as shown in Figure 9 and Figure 10 , the fastener 350 includes the bolt assembly 351, the box body 310 is provided with a first assembly hole 352, the box body 13 is provided with a second assembly hole 353, and the bolt assembly 351 is inserted into the first assembly hole 352 and the second assembly hole 353 to fixedly connect the box body 310 with the box body 13. The first assembly hole 352 can be a through hole, and the bolt assembly 351 can be assembled to the second assembly hole 353 after passing through the first assembly hole 352, so that the bolt assembly 351 can be inserted from the outside of the box body 13, and the operation is more convenient. The second assembly hole 353 can be a through hole or a blind hole. The first assembly hole 352 and the second assembly hole 353 can be provided as threaded holes or smooth holes.

[0143] Optionally, a sealing gasket 344 can be arranged between the first assembly hole 352 and the second assembly hole 353, which can seal the first assembly hole 352 and the second assembly hole 353, and reduce the possibility of dust, water vapor, etc. entering the box body 13 from the second assembly hole 353 and the second assembly hole 353. It should be noted that the sealing gasket 344 between the first assembly hole 352 and the second assembly hole 353 can be the sealing gasket 341 between the first side surface 311 and the box body 13, and the sealing gasket 344 and the sealing gasket 341 can also be independently arranged.

[0144] Exemplarily, as shown in Figures 5 to 10As shown, the box body 310 has a first side 311 and a second side 312 arranged oppositely, the first side 311 abuts against the outer wall surface of the box body 13, and the second side 312 is the side of the box body 310 away from the box body 13. The second side 312 is provided with a recessed portion 3111 avoiding the accommodating cavity, and the fastener 350 is connected to the recessed portion 3111. By arranging the fastener 350 in the recessed portion 3111, the possibility of the fastener 350 protruding relative to the box body 310 is reduced.

[0145] The data transmitter 300 is connected to the box body 13 through the fastener 350, which is convenient to disassemble and assemble, and has good connection stability.

[0146] According to some embodiments of the present application, optionally, as Figure 13 As shown, Figure 13 A schematic diagram of the connection of the battery management assembly, the data transmitter and the cloud server according to some embodiments of the present application is shown. The data transmission assembly 320 includes a data transmission component 321 and a data processing component 322. The data transmission component 321 is connected to the battery management assembly 200 through the data processing component 322. The data processing component 322 is used to receive the battery data and filter the battery data. The data transmission component 321 is used to send the filtered battery data to the server.

[0147] The data processing component 322 can perform wired communication with the battery device 10 (the battery management assembly 200) and the vehicle-side high-voltage box 40 through a wire harness (refer to the second wire harness 400). The data processing component 322 collects and filters the data of the battery device 10 (the battery management assembly 200), and sends the filtered data to the data transmission component 321.

[0148] The data transmission component 321 can be a wireless communication component, which can perform wireless communication with the server, and is used to send the data of the battery management assembly 200 to the server, or send the instructions of the cloud server 1 to the battery management assembly 200.

[0149] Optionally, the data transmission component 321 can include a 4G communication component, a 3G (third generation mobile communication technology) communication component and / or a 5G communication component, etc. The data transmission component 321 can perform data transmission with the cloud server 1.

[0150] The circuit, chip and other electrical devices of the data processing component 322 and the data transmission component 321 can be integrated on one circuit board, or can be respectively arranged on two circuit boards. The data processing component 322 and the data transmission component 321 can be connected through a circuit. The data processing component 322 and the data transmission component 321 can be arranged in the box body 310.

[0151] The battery device 10 of the embodiment has the data transmission component 321 and the data processing component 322 integrated in the external data transmitter 300, so that the components of the battery device 10 for transmitting data to the server are all external to the box 13, facilitating the maintenance, repair and disassembly of the data transmission component 321 and the data processing component 322, and saving the space in the box 13 of the battery device 10.

[0152] According to some embodiments of the present application, as shown in Figure 13 The data transmission component 321 is in communication connection with the data processing component 322, and the data processing component 322 is configured to receive the data transmitted by the data transmission component 321 and process the data.

[0153] The data transmission component 321 can be integrated in the circuit board or circuit of the data transmission component 321, and can be a GNSS positioning module, which is an electronic device integrating a Global Navigation Satellite System (GNSS) receiver and related circuits.

[0154] The positioning information of the positioning component 323 can be transmitted to the cloud server 1 through the data transmission component 321. By setting the positioning component 323, the position of the battery device 10 can be obtained, and the battery device 10 can be positioned, which facilitates the search for the battery device 10 and reduces the possibility of losing the battery device 10. In addition, the battery device 10 of the embodiment has the data transmission component 321, the data processing component 322 and the positioning component 323 integrated in the external data transmitter 300, which has a simple structure and is convenient to arrange, and makes the components of the battery device 10 for transmitting data to the server all external to the box 13, facilitating the maintenance, repair and disassembly of the data transmission component 321 and the data processing component 322, and saving the space in the box 13 of the battery device 10.

[0155] According to some embodiments of the present application, as shown in Figure 12 and Figure 13 The data transmitter 300 further comprises an antenna 330, which is in electrical connection with the data transmission assembly 320, and the antenna 330 is used to enhance the signal strength of the data transmission assembly 320. The antenna 330 is arranged in the box body 310, or part of the box body 310 is arranged as the antenna 330.

[0156] The antenna 330 can be used to enhance the signal and improve the stability and data transmission range of data transmission. The antenna 330 can be made of metal. When the antenna 330 is arranged in the box body 310, at least the position corresponding to the antenna 330 of the box body 310 can be arranged as non-metal to reduce the shielding effect on the signal.

[0157] Exemplarily, the antenna 330 is arranged in the box body 310, and the main body of the box body 310 is entirely made of plastic.

[0158] Exemplarily, the box body 310 is partially made of metal, and the metal part constitutes the antenna 330.

[0159] The antenna 330 can include an antenna for enhancing the signal of the data transmission component 321, for example, a 4G antenna corresponding to the 4G communication component, a 3G antenna corresponding to the 3G communication component, and / or a 5G antenna corresponding to the 5G communication component, and the like, which can enhance the signal strength of the cellular network.

[0160] When the data transmission component 320 is provided with a positioning component 323, the antenna 330 can further include a component for enhancing the positioning signal, for example, a GNSS antenna corresponding to the GNSS positioning module, which enhances the signal strength of the GNSS satellite search.

[0161] The battery device 10 of the embodiment integrates the data transmission component 321, the data processing component 322 and the antenna 330 into one, has a simple structure, is convenient to assemble, and makes the related components of the battery device 10 for transmitting data to the server all externally arranged outside the box body 13, which facilitates the maintenance, repair and disassembly of the data transmission component 321 and the data processing component 322, and saves the space in the box body 13 of the battery device 10.

[0162] According to some embodiments of the present application, optionally, the antenna 330 is arranged in the box body 310, and the part of the box body 310 in the signal transmission path of the antenna 330 is made of non-signal shielding material.

[0163] The non-signal shielding part refers to a part made of non-signal shielding material, which basically does not affect the signal transmission, and specifically can be a plastic part made of plastic.

[0164] The part of the antenna 330 in the signal transmission path is made of non-signal shielding material, which can reduce the signal shielding effect of the box body 310 on the antenna 330, and improve the stability and reliability of the signal transmission.

[0165] According to some embodiments of the present application, optionally, as shown in Figure 12 The box body 310 is divided into a first compartment 313 and a second compartment 314, the data transmission component 320 is arranged in the second compartment 314, the antenna 330 is arranged in the first compartment 313, and the part of the box body 310 surrounding the first compartment 313 is made of non-signal shielding material.

[0166] The box body 310 can be provided with a partition plate 318, the partition plate 318 divides the box body 310 into a first compartment 313 and a second compartment 314, the partition plate 318 can be provided with a through hole, the through hole communicates the first compartment 313 and the second compartment 314, and a connection position between the data transmission assembly 320 and the antenna 330 can be arranged in the through hole.

[0167] The part of the box body 310 surrounding the first compartment 313 is made of a non-conductive material, which can reduce the shielding effect on the signal.

[0168] Exemplarily, the box body 310 can be made of plastic material as a whole.

[0169] By arranging the data transmission assembly 320 and the antenna 330 in different compartments, the components can be arranged reasonably, and the mutual interference between the components can be reduced. The arrangement direction (reference direction X) of the first compartment 313 and the second compartment 314 can be perpendicular to the arrangement direction Y of the data transmission device 300 and the outer wall surface thereof, so that the data transmission device 300 can occupy the width and length directions of the corresponding wall of the box body 13 as much as possible, and the problem that the overall space occupied by the battery device 10 is large due to the external data transmission device 300 can be reduced.

[0170] According to some embodiments of the present application, optionally, Figures 5 to 7 and as shown in Figure 14 , Figure 14 the first wall and the second wire harness assembly diagram for some embodiments of the present application, the box body 13 is provided with a wire passing hole 134, the data transmission device 300 and the battery management assembly 200 are connected in communication through the wire harness (reference second wire harness 400), and the wire harness is arranged in the wire passing hole 134.

[0171] The wire passing hole 134 can be arranged on the wall of the box body 13 where the data transmission device 300 is arranged, and the wire passing hole 134 penetrates the wall of the box body 13 to communicate the inside and the outside of the box body 13.

[0172] The wire harness (reference second wire harness 400) can be a data line having both power supply function and data transmission function, of course, the wire harness (reference second wire harness 400) can also include a power line 420 having power supply function and a communication line 430 (for example, CAN line) for data transmission arranged separately.

[0173] The data transmission device 300 and the battery management assembly 200 are connected in wired connection through the wire harness (reference second wire harness 400), which not only improves the data transmission stability between the data transmission device 300 and the battery management assembly 200, but also provides power for the data transmission device 300. The wire passing hole 134 is arranged on the box body 13, which facilitates the arrangement of the wire harness (reference second wire harness 400).

[0174] According to some embodiments of the present application, optionally, as shown in Figures 5 to 7 , the data transmission device 300 is mounted on the wall of the box 13 provided with the wire hole 134. Figure 14

[0175] The box 13 can be provided with the wire hole 134 on the first wall 133, and the data transmission device 300 can be mounted on the outer wall surface of the first wall 133.

[0176] The wire hole 134 is used for the second wire harness 400 to pass through, and the data transmission device 300 is arranged on the first wall 133 provided with the wire hole 134, so that the wiring path of the second wire harness 400 and the connection between the second wire harness 400 and the data transmission device 300 can be simplified, and the possibility of exposure of the second wire harness 400 can be reduced, and the connection reliability between the second wire harness 400 and the data transmission device 300 is improved.

[0177] According to some embodiments of the present application, optionally, as shown in Figures 7 to 8 , Figure 11 The battery device 10 further comprises a sealing member 360, which seals the gap between the wire harness (referring to the second wire harness 400) and the hole wall of the wire hole 134.

[0178] As shown in Figures 7 to 9 , Figure 11 For example, the sealing member 360 can include a flexible pad 361 attached to the base 316 of the box 310, which seals the gap between the wire harness (referring to the second wire harness 400) and the hole wall of the wire hole 134 by sealing the outer edge of the mounting hole 319. The flexible pad 361 is further connected with a flexible sleeve 3611, which can be an integral structure with the flexible pad 361, and the flexible sleeve 3611 is arranged in the wire hole 134 and is sealingly arranged with the hole wall of the wire hole 134, and the wire harness is arranged in the flexible sleeve 3611. The flexible pad 361 can be arranged between the box 310 and the outer wall surface of the box 13, and at this time, the flexible pad 361 can be fixed on the box 13 by the box 310 pressing, so as to compress the flexible pad 361. As shown in Figure 7 and Figure 11 The flexible pad 361 can also be arranged in the box 310, and the box 310 is provided with a pressing plate 362, which is fixedly connected with the base 316 of the box 310 (or the box 13) by screws or other fixing members, so as to press and fix the flexible pad 361 on the outer wall surface of the box 13. The flexible pad 361 can be a rubber pad or the like.

[0179] ​Exemplarily, the reinforcing cylinder 135 is arranged in the wire passing hole 134, the wire harness (referring to the second wire harness 400) is arranged in the reinforcing cylinder 135, and the wire harness (referring to the second wire harness 400) passes through the reinforcing cylinder 135 and enters the box body 310. Optionally, the flexible sleeve 3611 can be sleeved in the reinforcing cylinder 135, and the flexible pad 361 can cover the gap between the reinforcing cylinder 135 and the wire passing hole 134.

[0180] Exemplarily, in some other embodiments, the sealing member 360 can also be arranged in the wire passing hole 134 and sleeved outside the wire harness (referring to the second wire harness 400). Optionally, the sealing member 360 can be a sealing ring arranged between the outer circumferential wall of the wire harness (referring to the second wire harness 400) or the reinforcing cylinder 135 and the hole wall of the wire passing hole 134.

[0181] By arranging the sealing member 360, the sealing performance of the box body 13 can be improved.

[0182] According to some embodiments of the present application, optionally, the data transmitter 300 comprises a box body 310 and a data transmission assembly 320 arranged in the box body 310, the wire harness (referring to the second wire harness 400) is in communication connection with the data transmission assembly 320, the box body 310 is provided with a mounting hole 319, the box body 310 covers the wire passing hole 134, and the mounting hole 319 corresponds to and communicates with the position of the wire passing hole 134, and the wire harness (referring to the second wire harness 400) passes through the mounting hole 319 and the wire passing hole 134.

[0183] The mounting hole 319 can communicate the inside and outside of the box body 310, and the mounting hole 319 can be arranged on the first face of the box body 310. The mounting hole 319 and the wire passing hole 134 can be arranged in alignment. When the sealing member 360 is arranged as the flexible pad 361, the flexible pad 361 can be arranged in the mounting hole 319.

[0184] By corresponding the positions of the mounting hole 319 and the wire passing hole 134, the wire harness (referring to the second wire harness 400) can enter the box body 310 from the mounting hole 319 after passing out of the wire passing hole 134, and the wire harness (referring to the second wire harness 400) can not be exposed, the wiring is beautiful, the structure is simple, and the possibility of damage of the wire harness (referring to the second wire harness 400) due to exposure is reduced.

[0185] According to some embodiments of the present application, optionally, the wire harness (referring to the second wire harness 400) is in detachable connection with the data transmitter 300.

[0186] Among them, the communication connection and the mechanical connection between the wire harness (referring to the second wire harness 400) and the data transmitter 300 are all detachable.

[0187] Exemplarily, the wire harness (referring to the second wire harness 400) and the data transmitter 300 can be connected through interference plug-in or snap connection to realize fixation and communication connection.

[0188] For example, the wire harness (see the second wire harness 400) and the data transmitter 300 can be connected through the joint and fixed by screwing the joint of the two.

[0189] By setting the wire harness (see the second wire harness 400) and the data transmitter 300 as detachable connection, the replacement or maintenance of the data transmitter 300 is facilitated.

[0190] According to some embodiments of the present application, as shown in Figure 12 The data transmitter 300 is provided with a first joint 370, and the wire harness (see the second wire harness 400) is provided with a second joint 410, and the first joint 370 and the second joint 410 are inserted.

[0191] One of the first joint 370 and the second joint 410 is a male joint, and the other is a female joint, and the male joint and the female joint are inserted into each other to realize the fixation and electrical (communication) connection of the first joint 370 and the second joint 410.

[0192] For example, the first joint 370 is a female joint with a notch, and the second joint 410 is a male joint, which is inserted into the notch of the female joint and fixed by interference fit with the female joint.

[0193] The wire harness (see the second wire harness 400) and the data transmitter 300 are connected through the first joint 370 and the second joint 410, which facilitates the replacement or maintenance of the data transmitter 300.

[0194] According to some embodiments of the present application, as shown in Figures 5 to 12 The data transmitter 300 includes a box body 310 and a data transmission assembly 320 arranged in the box body 310, the data transmission assembly 320 is connected with the first joint 370, the box body 310 is divided into a second compartment 314 and a third compartment 315, the data transmission assembly 320 is arranged in the second compartment 314, the first joint 370 is arranged on the side adjacent to the second compartment 314 and the third compartment 315, and the second joint 410 is arranged in the third compartment 315.

[0195] A partition plate 318 can be arranged in the box body 310, which divides the box body 310 into the second compartment 314 and the third compartment 315, and the partition plate 318 can be provided with a through hole, which communicates the second compartment 314 and the third compartment 315, and the first joint 370 is arranged corresponding to the through hole, and optionally, the first joint 370 can be partially arranged in the through hole, and the second joint 410 is connected corresponding to the first joint 370.

[0196] The third compartment 315 is equivalent to a wire connection compartment for wire connection.

[0197] For example, the third compartment 315 can be hollowed out towards one side of the outer wall surface of the box 13 to form a mounting hole 319, and the third compartment 315 covers the wire passing hole 134 of the box 13.

[0198] By arranging the data transmission assembly 320 and the second joint 410 in different compartments, the components can be arranged reasonably, and the mutual interference between the components can be reduced. The arrangement direction (reference direction X) of the second compartment 314 and the third compartment 315 can be perpendicular to the arrangement direction Y of the data transmission device 300 and the outer wall surface on which the data transmission device 300 is arranged, so that the data transmission device 300 can occupy the width and length directions of the corresponding wall of the box 13 as much as possible, and the problem of large overall space occupied by the battery device 10 due to the external data transmission device 300 can be reduced.

[0199] According to some embodiments of the present application, the data transmission device 300 can optionally include a wireless communication component.

[0200] The wireless communication component can include a 3G communication component, a 4G communication component, and / or a 5G communication component.

[0201] As shown in the drawings, Figures 2 to 14 The present embodiment provides a battery device 10, which includes a box 13, a plurality of battery cells 101, a battery management assembly 200, and a data transmission device 300. The box 13 is divided into an energy storage compartment 131 and a functional compartment 132 by an expansion beam. The battery cells 101 are arranged in the energy storage compartment 131. The battery management assembly 200 is arranged in the functional compartment 132, and is used to monitor and manage the battery cells 101. The data transmission device 300 is mounted on the outer wall surface of one side wall (i.e., the first wall 133) of the box 13, and the first wall 133 is a side wall of the functional compartment 132.

[0202] The data transmitter 300 comprises a box body 310, a data transmission assembly 320 and an antenna 330. The box body 310 is internally provided with a containing cavity, and the containing cavity is formed with a first compartment 313, a second compartment 314 and a third compartment 315 by a partition plate 318. The first compartment 313, the second compartment 314 and the third compartment 315 are arranged along the length direction of the first wall 133 (the length direction can refer to direction X). The data transmission assembly 320 comprises a data transmission component 321, a data processing component 322 and a positioning component 323. The data transmission component 321 is communicatively connected with the battery management assembly 200 through the data processing component 322. The data processing component 322 is used for receiving and filtering battery data. The data transmission component 321 is used for realizing data interaction between the data processing component 322 and the cloud server 1. The positioning component 323 is communicatively connected with the data transmission component 321. The antenna 330 is electrically connected with the data transmission component 321. The antenna 330 is arranged in the first compartment 313. The box body 310 is integrally arranged as a plastic piece. The data transmission component 321, the data processing component 322 and the positioning component 323 are arranged in the second compartment 314. The data processing component 322 is located on the side of the second compartment 314 facing the third compartment 315. The data processing component 322 is connected with a first connector 370. The battery management assembly 200 is connected with a wire harness (referring to a second wire harness 400). The wire harness (referring to the second wire harness 400) can be connected with the battery management assembly 200 through a third connector 440. The wire harness (referring to the second wire harness 400) is further provided with a second connector 410. The first wall 133 is provided with a wire passing hole 134. The third compartment 315 is arranged corresponding to the wire passing hole 134. The side of the third compartment 315 facing the first wall 133 is provided with a mounting hole 319. The wire passing hole 134 corresponds to the mounting hole 319, and the third compartment 315 covers the wire passing hole 134. One end of the wire harness (referring to the second wire harness 400) with the second connector 410 passes through the wire passing hole 134 and the mounting hole 319 into the third compartment 315, and is inserted and fixed with the first connector 370 in the third compartment 315, so that the data processing component 322 is communicatively and power supply connected with the battery management assembly 200 through the wire harness (referring to the second wire harness 400). The side of the third compartment 315 facing the first wall 133 is provided with a flexible pad 361. The flexible pad 361 is fixed on the first wall 133 by being pressed by the box body 310. The box body 310 and the first wall 133 form a surface seal at the circumference of the wire passing hole 134 through the flexible pad 361, so that the inside of the box body 13 is isolated from the outside, that is, the box body 13 is sealingly arranged at the wire passing hole 134.The box body 310 has a first side surface 311 facing the first wall 133, and a sealing component 340 is arranged between the first side surface 311 and the outer wall surface, the sealing component 340 includes a sealing gasket 341 and a sealing glue 342, the sealing gasket 341 is arranged in a circumferential direction of the first side surface 311 and is arranged in an edge region of the first side surface 311, the first side surface 311 is arranged in a circumferential direction of the first side surface 311 and is provided with a glue groove 343, the glue groove 343 is located at a position close to an inner side of the first side surface 311, and the glue groove 343 is filled with the sealing glue 342. The box body 310 is provided with a first assembly hole 352, and the first wall 133 is provided with a second assembly hole 353, the first assembly hole 352 and the second assembly hole 353 are arranged in one-to-one correspondence and alignment, and a bolt assembly 351 is arranged in the corresponding first assembly hole 352 and the second assembly hole 353, and the bolt assembly 351 locks and fixes the box body 310 on the first wall 133 through the first assembly hole 352 and the second assembly hole 353. Wherein, the box body 310 can be substantially square, and the four corners of the box body 310 are respectively provided with the first assembly hole 352 and the bolt assembly 351 (wherein, in order to display the first assembly hole 352, the bolt assembly 351 connected to part of the first assembly hole 352 is not shown in the drawing), in addition, in order to improve the sealing performance at the wire passing hole 134, two symmetrical first assembly holes 352 and bolt assemblies 351 can also be added at the connection between the second compartment 314 and the third compartment 315. The data transmission component 321 includes a wireless communication component, and the wireless communication component includes a 3G communication component, a 4G communication component and / or a 5G communication component.

[0203] The embodiment also provides a power-using device including the battery device 10 provided by the application or any of the embodiments of the application, and the battery device 10 is used for storing or providing electric energy.

[0204] The power-using device in the embodiment can be any of the power-using devices or systems described above.

[0205] The power-using device in the embodiment has the same beneficial effects as the battery device 10 provided by the application or any of the embodiments of the application.

[0206] If not particularly stated, all the embodiments and optional embodiments of the application can be combined to form new technical solutions.

[0207] The above description of the various embodiments tends to emphasize the differences between the various embodiments, and the same or similar parts can be referred to each other, and for the sake of brevity, the description is not repeated here.

[0208] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some or all of the technical features can be replaced equivalently. Such modifications or replacements do not change the essence of the corresponding technical solutions, which should be covered in the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery device, characterized by, The application relates to a battery management device, comprising: a box body; at least one battery monomer arranged in the box body; a battery management assembly arranged in the box body and connected with the at least one battery monomer, the battery management assembly being used for collecting battery data of the at least one battery monomer and managing the battery monomer based on the battery data; a data transmitter mounted on an outer wall surface of the box body and in communication connection with the battery management assembly, the data transmitter being used for receiving the battery data and sending the battery data to a server.

2. The battery device according to claim 1, characterized by The box body is provided with an energy storage compartment and a functional compartment, the at least one battery monomer is arranged in the energy storage compartment, the battery management assembly is arranged in the functional compartment, and the box body has a first wall surrounding the functional compartment, and the data transmitter is mounted on an outer wall surface of the first wall.

3. The battery device of claim 2, wherein, At least part of the circumferential side wall of the box body is arranged as the first wall.

4. The battery device according to any one of claims 1 to 3, characterized by, The data transmitter comprises a box body and a data transmission assembly, the data transmission assembly is arranged in the box body, and the box body is connected with the box body.

5. The battery device of claim 4, wherein, The box body has a first side surface facing the outer wall surface of the box body, a sealing member is arranged between the first side surface and the outer wall surface, and the sealing member is used for sealing a gap between the first side surface and the outer wall surface.

6. The battery device of claim 5, wherein, The sealing member comprises a sealing gasket, and the sealing gasket is arranged around an edge region of the first side surface in the circumferential direction.

7. The battery device according to claim 5 or 6, characterized by The sealing member comprises sealing glue.

8. The battery device of claim 7, wherein, The first side surface is provided with a glue filling groove in the circumferential direction of the first side surface, and the glue filling groove is filled with the sealing glue.

9. The battery device according to any one of claims 1 to 8, characterized by, The data transmitter is arranged to be detachably mounted on the outer wall surface of the box body.

10. The battery device of claim 9, wherein, The data transmitter is connected with the box body through a fastener.

11. The battery device according to any one of claims 4 to 8, wherein The data transmission assembly comprises a data transmission component and a data processing component, the data transmission component is in communication connection with the battery management assembly through the data processing component, the data processing component is used for receiving the battery data and filtering the battery data, and the data transmission component is used for sending the filtered battery data to a server.

12. The battery device of claim 11, wherein, The data transmission assembly further comprises a positioning component, the positioning component is in communication connection with the data transmission component, the positioning component is configured to acquire position information of the battery device and send the position information to the data transmission component.

13. The battery device according to any one of claims 4 to 8, 11 and 12, characterized by, The data transmitter further comprises an antenna, the antenna is electrically connected with the data transmission assembly, the antenna is used for enhancing the signal strength of the data transmission assembly, the antenna is arranged in the box body, or part of the box body is arranged as the antenna.

14. The battery device of claim 13, wherein, The box body is arranged at a position of a signal emission path of the antenna and is arranged as a non-signal shielding part.

15. The battery device of claim 14, wherein, The box body is divided into a first compartment and a second compartment, the data transmission assembly is arranged in the second compartment, the antenna is arranged in the first compartment, and part of the box body surrounding the first compartment is arranged as a non-signal shielding part.

16. The battery device according to any one of claims 1 to 15, wherein The box body is provided with a wire hole, the data transmitter is in communication connection with the battery management assembly through a wire harness, and the wire harness is arranged through the wire hole.

17. The battery device of claim 16, wherein, The data transmitter is mounted on a wall of the box where the wire hole is provided.

18. The battery device according to claim 16 or 17, characterized by The battery device further comprises a seal member sealing a gap between the wire harness and a hole wall of the wire hole.

19. The battery device of claim 18, wherein, The data transmitter comprises a box body and a data transmission assembly arranged in the box body, the wire harness is in communication connection with the data transmission assembly, the box body is provided with a mounting hole, the box body covers the wire hole, and the mounting hole is in position correspondence and communication with the wire hole, and the wire harness is arranged in the mounting hole and the wire hole.

20. The battery device of claim 19, wherein, The wire harness is detachably connected with the data transmitter.

21. The battery device of claim 20, wherein, The data transmitter is provided with a first connector, the wire harness is provided with a second connector, and the first connector is inserted with the second connector.

22. The battery device of claim 21, wherein, The data transmitter comprises a box body and a data transmission assembly arranged in the box body, the data transmission assembly is connected with the first connector, the box body is divided into a second compartment and a third compartment, the data transmission assembly is arranged in the second compartment, the first connector is arranged on a side adjacent to the second compartment and the third compartment, and the second connector is arranged in the third compartment.

23. The battery device of any one of claims 1-22, wherein, The data transmitter comprises a wireless communication component.

24. An electrical device, comprising: The battery device of any one of claims 1-23.

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