Battery, energy storage system and electric equipment

Abstract

The utility model is applicable to the field of electrical technology, and provides a battery, an energy storage system and electric equipment, the energy storage system and the electric equipment respectively comprise a battery, the battery comprises a connector, the connector comprises a shell and a plurality of terminals, and the plurality of terminals are arranged in the shell in parallel. The plurality of terminals which are connected in parallel are arranged on the shell of the connector, so that when the connector is used, current can pass through the plurality of terminals in parallel to supply power to electric equipment, namely, the connector can be electrified through the plurality of branches. Thus, the connector can pass through a large current, and the effect of large-current power-on can be achieved.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, and more specifically, relates to a battery, an energy storage system, and an electrical device. Background Art

[0002] In related technologies, a battery is usually provided with a connector so that the electrical energy of the battery can be transmitted through the connector to supply power to an electrical device.

[0003] In some cases, the overcurrent capacity of the connector is poor and it is impossible to achieve large-current power-on. Summary of the Utility Model

[0004] In view of the above problems, the embodiments of this application provide a battery, an energy storage system, and an electrical device, which can improve the problem of poor overcurrent capacity of the connector.

[0005] In a first aspect, the embodiments of this application provide a battery, including battery cells and a connector for transmitting the electrical energy of the battery. The connector includes:

[0006] A housing;

[0007] A plurality of terminals, arranged in parallel in the housing;

[0008] Wherein, the terminals are electrically connected to the battery cells.

[0009] For the battery provided by the embodiments of this application, by arranging a plurality of parallel terminals in the housing of the connector, when the connector is in use, the current can pass through the plurality of terminals in parallel to supply power to the electrical device, that is, the connector can be powered on through multiple branches. In this way, the connector can pass a larger current and can achieve the effect of large-current power-on.

[0010] In some embodiments, the connector further includes a conductive connecting member connecting the plurality of terminals to parallelize the plurality of terminals.

[0011] By providing the conductive connecting member, the plurality of terminals are arranged in parallel, so that the connector can be powered on through multiple branches to achieve the effect of large-current power-on.

[0012] In some embodiments, the cross-sectional area of the conductive connecting member is greater than or equal to the sum of the cross-sectional areas of the plurality of terminals.

[0013] By setting the cross-sectional area of the conductive connecting member to be greater than or equal to the sum of the cross-sectional areas of the plurality of terminals, the conductive connecting member has a larger overcurrent capacity, and the overcurrent capacity of the conductive connecting member is greater than or equal to the overcurrent capacity of the plurality of terminals. Therefore, the connector can be powered on through multiple branches, so that the connector can pass a larger current and can achieve the effect of large-current power-on.

[0014] In some embodiments, the conductive connector is in surface contact with and connected to the terminal.

[0015] By the surface contact between the conductive connector and the terminal, the connection between the conductive connector and the terminal has a large current-carrying capacity.

[0016] In some embodiments, both the conductive connector and the terminal are in sheet form, and a part of the terminal and a part of the conductive connector are sequentially distributed and connected along the thickness direction of the terminal.

[0017] In this way, surface contact can be achieved between the terminal and the conductive connector, and there is a large contact area between the conductive connector and the terminal. Thus, the connection between the conductive connector and the terminal has a large current-carrying capacity, which is convenient for improving the current-carrying capacity of the connector.

[0018] In some embodiments, the conductive connector and the terminal are separately provided or integrally provided.

[0019] With such a setting, the conductive connector and the terminal can be separately formed, that is, the conductive connector and the terminal can be designed according to their respective requirements, which is convenient for improving the current-carrying capacity of the connector.

[0020] Or, it is convenient for the forming of the connector.

[0021] In some embodiments, the conductive connector and the terminal are separately provided, and the conductive connector and the terminal are welded and / or riveted and / or bolt-connected.

[0022] By adopting the above technical solution, the separate connection between the conductive connector and the terminal is very simple, easy to implement, and very reliable.

[0023] In some embodiments, the conductive connector and / or the terminal is a copper bar.

[0024] Through the design of the conductive connector as a copper bar, the conductive connector has a large current-carrying capacity, which is convenient for multiple terminals to form a parallel connection and is convenient for improving the current-carrying capacity of the connector.

[0025] Through the design of the terminal as a copper bar, the terminal has a large current-carrying capacity, and thus the current-carrying capacity of the connector can be improved.

[0026] In some embodiments, the terminal includes:

[0027] A main body portion, which is arranged in the housing;

[0028] A plurality of elastic portions, which are arranged on the main body portion at intervals and can elastically deform.

[0029] A plurality of elastic parts are arranged through terminals, so that the connector can elastically abut against the conductive parts of the second connector through the elastic parts, which can improve the conduction reliability and stability between the terminals and the conductive parts of the second connector, that is, the docking conduction reliability and stability between the connector and the second connector can be improved.

[0030] In a second aspect, an embodiment of the present application provides an energy storage system, including a control device and a battery, and the control device is electrically connected to the connector of the battery.

[0031] For the energy storage system provided by the embodiment of the present application, by adopting the battery involved above, the connector can achieve the effect of passing a large current, which is convenient for the energy storage system to provide a large current power supply to the electrical equipment. Moreover, the control device can control the battery to supply power to the electrical equipment.

[0032] In some embodiments, the number of batteries is plural, and the plural batteries are electrically connected through the connector to form a battery assembly; the battery assembly has a total positive electrode and a total negative electrode, the control device is electrically connected to the total positive electrode and the total negative electrode, and the total positive electrode and / or the total negative electrode is the connector.

[0033] With such a setting, the control device can control the plural batteries to supply power to the electrical equipment.

[0034] In a third aspect, an embodiment of the present application provides an electrical equipment, including a battery.

[0035] For the electrical equipment provided by the embodiment of the present application, by adopting the battery involved above, the battery of the electrical equipment can achieve the effect of providing a large current to the electrical equipment.

[0036] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically given below. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0038] Figure 1 Schematic diagram of a vehicle provided by some embodiments of the present application;

[0039] Figure 2 Exploded view of a battery provided by some embodiments of the present application;

[0040] Figure 3 Schematic diagram of an energy storage system provided for some embodiments of the present application;

[0041] Figure 4 Schematic diagram of a connector provided for some embodiments of the present application;

[0042] Figure 5 For Figure 4 Top view of the provided connector;

[0043] Figure 6 Partial schematic diagram of a connector provided for some embodiments of the present application.

[0044] Among them, each reference numeral in the figure:

[0045] 1000 - Energy storage system; 2000 - Vehicle; 100 - Battery; 200 - Controller; 300 - Motor; 400 - Second connector; 500 - Control device; 10 - Connector; 101 - First mounting hole; 102 - Second mounting hole; 103 - Slot; 11 - Housing; 12 - Terminal; 121 - Main body part; 122 - Elastic part; 123 - Barb; 13 - Conductive connecting piece; 131 - First conductive part; 132 - Second conductive part; 14 - Fastener; 20 - Battery cell; 30 - Box body; 301 - Accommodating space; 31 - First part; 32 - Second part; 40 - Positive electrode transmission end; 40a - Total positive electrode; 50 - Negative electrode transmission end; 50a - Total negative electrode; Z - First direction; Y - Second direction; X - Third direction. Detailed description of specific embodiments

[0046] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation of the present application.

[0047] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0049] In the description of this application, "a plurality of" means more than two. Unless otherwise specifically defined, "more than two" includes two. Correspondingly, "multiple groups" means more than two groups, including two groups.

[0050] In the description of this application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0051] In the description of this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: the existence of A, the simultaneous existence of A and B, and the existence of B. In addition, in this application, the character " / " generally represents an "or" relationship between the front and back associated objects.

[0052] Although this application has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. This application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

[0053] In the related art, an energy storage system refers to a system used for energy storage and capable of supplying power to electrical equipment. The energy storage system usually can include a battery, and the battery is provided with a connector for transmitting the electrical energy of the battery. In this way, the electrical energy of the battery can be transmitted through the connector to supply power to the electrical equipment.

[0054] In some cases, the connector can be connected to control devices such as a high-voltage box, a main control box, and a control cabinet outside the battery. In this way, by connecting the electrical equipment to the control device, the control device can control the battery to supply power to the electrical equipment. Or, in some other cases, the connector can be connected to the electrical equipment to enable the battery to supply power to the electrical equipment.

[0055] However, the current-carrying capacity of the connector is poor and it cannot achieve energization with a large current. Specifically, the connector usually has only one branch, that is, the connector is energized only through a single branch, and its current-carrying capacity is poor and it cannot pass a large current.

[0056] Based on the above considerations, the embodiments of the present application provide a connector, a battery, an energy storage system and an electrical device. By providing a plurality of parallel terminals on the housing of the connector, when the connector is in use, the current can pass through the plurality of terminals in parallel to supply power to the electrical device, that is, the connector can be energized through a plurality of branches. In this way, the connector can pass a relatively large current and can achieve the effect of energization with a large current.

[0057] In some embodiments, the connector and the battery involved in the embodiments of the present application can be used in an energy storage system that uses a battery for energy storage to enable the battery to supply power to an electrical device. Among them, the energy storage system can be, but is not limited to, an energy storage container, an energy storage cabinet, etc.

[0058] In some other embodiments, the connector and the battery involved in the embodiments of the present application can be used in an electrical device that uses a battery as a power source to enable the battery to supply power to the electrical device.

[0059] The electrical device involved in the embodiments of the present application can be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, an electric toy, an electric tool, a battery car, a vehicle, a ship, a spacecraft, etc. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy, an electric aircraft toy, etc. The spacecraft can include an airplane, a rocket, a space shuttle, a spaceship, etc. Divided by power source, the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. Divided by driving mode, the vehicle can be a front-wheel drive vehicle, a rear-wheel drive vehicle or a four-wheel drive vehicle.

[0060] The battery involved in the embodiments of the present application can be a single physical module including one or more battery cells to provide a higher voltage and capacity. When there are multiple battery cells, the multiple battery cells are connected in series, parallel or in a hybrid connection through a busbar component, where the hybrid connection means that there are both series and parallel connections among the multiple battery cells.

[0061] In some embodiments, the battery can be a battery module. A plurality of battery cells are arranged and fixed to form a battery module. As an example, a plurality of battery cells can be fixed to form a battery module by means of cable ties or the like. As an example, a plurality of battery cells can also be fixed to form a battery module by means of end plates, side plates, etc.

[0062] In some other embodiments, the battery may be a battery pack, and the battery pack may include a box body and battery cells. As an example, the battery cells may be directly accommodated in the box body. As an example, the battery cells may also first form a battery module and then be accommodated in the box body.

[0063] The battery cell involved in the embodiments of the present application refers to the smallest unit for storing and outputting electric energy. Among them, the battery cell may be a secondary battery or a primary battery. The battery cell may be, but is not limited to, a metal battery, a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery. The battery cell may be in a cylindrical shape, a flat shape, a cuboid shape or other shapes, etc.

[0064] For ease of description, the embodiments of the present application will be described by taking the electrical device as a vehicle as an example.

[0065] In some embodiments, please refer to Figure 1 , Figure 1 which is a schematic diagram of the vehicle 2000 provided by some embodiments of the present application. The above-mentioned battery 100 is arranged inside the vehicle 2000, and the battery 100 may be arranged at the bottom, head or tail of the vehicle 2000. The battery 100 can be used for power supply of the vehicle 2000. For example, the battery 100 can be used as the operating power source of the vehicle 2000. The vehicle 2000 may further include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, such as for the working power requirements during the start, navigation and driving of the vehicle 2000.

[0066] In some embodiments, the battery 100 can not only be used as the operating power source of the vehicle 2000, but also be used as the driving power source of the vehicle 2000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 2000.

[0067] In some embodiments, please refer to Figure 2 , Figure 2 which is an exploded view of the battery 100 provided by some embodiments of the present application. The battery 100 includes a box body 30 and a plurality of battery cells 20. The box body 30 is a structure with an accommodation space 301 inside, and the box body 30 can adopt various structures. In some embodiments, the box body 30 may include a first part 31 and a second part 32. The first part 31 and the second part 32 are covered with each other and jointly define the above-mentioned accommodation space 301.

[0068] Among them, the first part 31 may be a hollow structure with an opening at one end, and the second part 32 is a plate-like structure. The second part 32 is covered on the opening side of the first part 31 so that the first part 31 and the second part 32 jointly define the above-mentioned accommodation space 301. Or, please refer to Figure 2, both the first part 31 and the second part 32 can be hollow structures with an opening at one end. The opening side of the first part 31 covers the opening side of the second part 32, so that the first part 31 and the second part 32 jointly define the accommodation space 301 mentioned above.

[0069] Among them, the box body 30 composed of the first part 31 and the second part 32 can be in various shapes, such as a cylinder, a cuboid, etc.

[0070] In some embodiments, please refer to Figure 2 , multiple battery cells 20 can be formed into a whole by series connection, parallel connection or hybrid connection, and then the whole formed by the multiple battery cells 20 is directly accommodated in the accommodation space 301 of the box body 30. In other embodiments, multiple battery cells 20 can also be first connected in series, parallel or in a hybrid way, arranged and fixed to form a battery module, and the battery module is accommodated in the accommodation space 301 of the box body 30. In still other embodiments, multiple battery cells 20 can also be first connected in series, parallel or in a hybrid way, arranged and fixed to form multiple battery modules, and the multiple battery modules are then connected in series, parallel or in a hybrid way to form a whole and are accommodated in the accommodation space 301 of the box body 30.

[0071] In some embodiments, please refer to Figures 1 to 3 , Figure 3 is a schematic diagram of the energy storage system 1000 provided by some embodiments of the present application. The battery 100 includes a connector 10, and the connector 10 is used to transmit the electric energy of the battery 100, so that the electric energy of the battery 100 can be transmitted through the connector 10 to supply power to the electrical equipment.

[0072] Specifically, please continue to refer to Figures 1 to 3 , the battery 100 has a positive electrode transmission end 40 and a negative electrode transmission end 50. The positive electrode transmission end 40 and the negative electrode transmission end 50 are respectively the current transmission ends of the battery 100, and both the positive electrode transmission end 40 and the negative electrode transmission end 50 are used to transmit the electric energy of the battery 100, specifically for outputting or inputting current. Among them, only the positive electrode transmission end 40 is the above-mentioned connector 10; or, only the negative electrode transmission end 50 is the above-mentioned connector 10; or, the positive electrode transmission end 40 and the negative electrode transmission end 50 are respectively the above-mentioned connector 10.

[0073] Specifically, the battery 100 further includes battery cells 20. The positive electrode transmission end 40 can be connected to the battery cells 20 through copper bars, copper buses, etc., and the negative electrode transmission end 50 can be connected to the battery cells 20 through copper bars, copper buses, etc.

[0074] In some embodiments, please continue to refer to Figure 3, the connector 10 provided by the embodiments of the present application is used to cooperate with the second connector 400. Specifically, the connector 10 is used to dock and conduct electricity with the second connector 400. Among them, the connector 10 can be a female connector, and the second connector 400 is a male connector; the connector 10 can also be a male connector, and the second connector 400 is a female connector. In this way, the connector 10 and the second connector 400 can be docked and conduct electricity. Among them, the connector 10 and the second connector 400 can form a connector assembly.

[0075] When the battery 100 is applied to the vehicle 2000, the connector 10 of the battery 100 can be connected to the controller 200 of the vehicle 2000, so that the controller 200 can control the battery 100 to supply power to the motor 300 and the like.

[0076] As an example, the positive transmission terminal 40 of the battery 100 is the connector 10. The positive transmission terminal 40 is connected to the corresponding second connector 400, and the second connector 400 is connected to the controller 200. The negative transmission terminal 50 of the battery 100 is the connector 10. The negative transmission terminal 50 is connected to the corresponding second connector 400, and the second connector 400 is connected to the controller 200. Based on this, the controller 200 and the battery 100 form a circuit, so that the controller 200 can control the battery 100 to supply power to the motor 300 to realize the operation of the vehicle 2000 and the like.

[0077] When the battery 100 is applied to the energy storage system 1000, the connector 10 of the battery 100 can be connected to the electrical equipment, so that the battery 100 supplies power to the electrical equipment; the connector 10 of the battery 100 can also be connected to the control device 500, so that the control device 500 controls the battery 100 to supply power to the electrical equipment. Among them, specific examples of the battery 100 applied to the energy storage system 1000 can be described in the corresponding part below and will not be elaborated here.

[0078] Please refer to Figures 4 to 6 , and in combination with other drawings. Among them, Figure 4 is a schematic diagram of the connector 10 provided by some embodiments of the present application, Figure 5 is Figure 4 a top view of the connector 10 provided. Figure 6 is a partial schematic diagram of the connector 10 provided by some embodiments of the present application, specifically Figure 4 a schematic diagram of the structure of the connector 10 provided except for the housing 11. The connector 10 provided by the embodiments of the present application includes a housing 11 and a plurality of terminals 12. The plurality of terminals 12 are arranged in the housing 11 and are arranged in parallel.

[0079] The housing 11 is the outer shell structure of the connector 10 and is used to install the terminals 12.

[0080] As an example, the housing 11 of the connector 10 can be mounted on the box body 30 of the battery 100. Specifically, as Figure 5 shown, the housing 11 is provided with a first mounting hole 101, and the housing 11 is mounted on the box body 30 through the first mounting hole 101. The first mounting holes 101 are spaced apart from the terminals 12.

[0081] The terminal 12 is a component of the connector 10 for conducting electricity. Among them, the material of the terminal 12 can be metal materials such as silver-plated copper, zinc-plated copper, copper, aluminum, iron, etc. When the connector 10 is docked and conducted with the second connector 400, the terminal 12 is docked and conducted with the conductive component of the second connector 400 to achieve the docking and conduction of the connector 10 and the second connector 400.

[0082] As an example, the terminal 12 of the connector 10 can also be electrically connected to the battery cell 20 of the battery 100 through a copper bar, a copper row, etc., so that the connector 10 becomes the positive transmission end 40 or the negative transmission end 50 of the battery 100. Among them, when the positive transmission end 40 and the negative transmission end 50 of the battery 100 are respectively the connector 10, the terminal 12 of the positive transmission end 40 is connected to the battery cell 20, and the terminal 12 of the negative transmission end 50 is also connected to the battery cell 20.

[0083] It should be noted here that when the connector 10 is in use, current passes through the terminal 12 of the connector 10. Among them, each terminal 12 forms each branch, and the branch is used to pass current. The arrangement of multiple terminals 12 enables the connector 10 to have multiple branches arranged in parallel, so that current can pass through multiple branches.

[0084] In some possible designs, as Figure 6 shown, the multiple terminals 12 are arranged at intervals. In some other possible designs, the multiple terminals 12 are connected in sequence.

[0085] The connector 10 provided by the embodiment of the present application enables current to pass through the multiple terminals 12 in parallel to supply power to the electrical equipment when the connector 10 is in use, that is, the connector 10 can be energized through multiple branches. In this way, the connector 10 can pass a relatively large current, and the effect of large-current power-on can be achieved, so that it can be applied to application scenarios with high voltage and large current.

[0086] In addition, by arranging multiple terminals 12 in parallel, the connector 10 can be applied to application scenarios with high-voltage current, with simple process, low cost and easy implementation.

[0087] In some examples, as Figures 4 to 6As shown, the number of terminals 12 is two, and the two terminals 12 are arranged in parallel on the housing 11. Based on this, the connector 10 has two branches that can be used to conduct current, so that the connector 10 has an overcurrent capacity of more than 1000A for extremely large current.

[0088] In some embodiments, as Figures 4 to 6 shown, the material of the housing 11 can be, but is not limited to, plastic, so that the housing 11 is an insulating structure. At least part of the terminal 12 is arranged inside the housing 11 to enable the housing 11 to achieve insulation protection for the terminal 12.

[0089] In some embodiments, please refer to Figures 4 to 6 together and in combination with other drawings. The connector 10 further includes a conductive connecting member 13, and the conductive connecting member 13 connects a plurality of terminals 12 to connect the plurality of terminals 12 in parallel.

[0090] The conductive connecting member 13 refers to a member with conductive ability. Among them, the material of the conductive connecting member 13 can be metal materials such as silver-plated copper, zinc-plated copper, copper, aluminum, and iron.

[0091] The conductive connecting member 13 is connected to the terminal 12, so that the conductive connecting member 13 and the terminal 12 are electrically connected. The conductive connecting member 13 is connected to a plurality of terminals 12 to arrange the plurality of terminals 12 in parallel.

[0092] By providing the conductive connecting member 13, the plurality of terminals 12 are arranged in parallel, so that the connector 10 can be energized through a plurality of branches to achieve the effect of energizing a large current. Moreover, by providing the conductive connecting member 13 to connect the plurality of terminals 12 in parallel, the structure of the connector 10 can be very simple, with low cost and easy to implement.

[0093] Here, it needs to be supplemented that the conductive connecting member 13 can be electrically connected to the battery cell 20 of the battery 100 through a copper bar, a copper row, etc., so that the connector 10 becomes the positive transmission end 40 or the negative transmission end 50 of the battery 100 to achieve an indirect connection between the terminal 12 and the battery cell 20. Among them, when the positive transmission end 40 and the negative transmission end 50 of the battery 100 are respectively the connector 10, the conductive connecting member 13 of the positive transmission end 40 is electrically connected to the battery cell 20, and the conductive connecting member 13 of the negative transmission end 50 is also electrically connected to the battery cell 20.

[0094] Among them, the current can flow from the battery cell 20 to the conductive connecting member 13 of the positive transmission end 40 of the connector 10, and then flow to the plurality of terminals 12 respectively, that is, the terminals 12 receive the current of the conductive connecting member 13. The current can also first flow to the plurality of terminals 12 and then merge and flow to the conductive connecting member 13 of the negative transmission end 50 of the connector 10, that is, the conductive connecting member 13 receives the current of the terminals 12.

[0095] As an example, as Figure 4 and Figure 6 shown, the conductive connection member 13 is provided with a second mounting hole 102, and the conductive connection member 13 can be connected to a copper bar, a copper row, etc. of the battery 100 through the second mounting hole 102. Among them, the second mounting hole 102 and the terminal 12 are spaced apart, and the second mounting hole 102 and the first mounting hole 101 are spaced apart, and the first mounting hole 101 and the conductive connection member 13 are spaced apart.

[0096] In some embodiments, please refer to Figure 4 , at least a part of the conductive connection member 13 is exposed outside the housing 11, so that the conductive connection member 13 can be connected to a copper bar, a copper row, etc. of the battery 100. Specifically, the part of the conductive connection member 13 having the second mounting hole 102 is exposed outside the housing 11.

[0097] In some embodiments, as Figures 4 to 5 shown, among the terminal 12 and the conductive connection member 13, only the terminal 12 is fixed to the housing 11, and the conductive connection member 13 is fixed along with the terminal 12. Or, in some other embodiments, among the terminal 12 and the conductive connection member 13, only the conductive connection member 13 is fixed to the housing 11, and the terminal 12 is fixed along with the conductive connection member 13. Or, in still some other embodiments, both the terminal 12 and the conductive connection member 13 are fixed to the housing 11.

[0098] Specifically, as Figures 4 to 6 shown, the terminal 12 is provided with barbs 123, and a card slot is provided in the housing 11. When at least a part of the terminal 12 is installed in the housing 11, the barbs 123 of the terminal 12 are snapped into the card slot of the housing 11 to realize the fixation of the terminal 12 on the housing 11.

[0099] In some embodiments, the housing 11 is provided with a slot 103, at least a part of the terminal 12 is disposed in the slot 103, and the card slot is disposed on the inner wall of the slot 103. Based on this, when the connector 10 and the second connector 400 are docked and conducted, at least a part of the second connector 400 can be inserted into the slot 103 to be docked and conducted with the terminal 12.

[0100] In some embodiments, please refer to together Figures 4 to 6 , and in combination with other drawings. The cross-sectional area of the conductive connection member 13 is greater than or equal to the sum of the cross-sectional areas of the plurality of terminals 12.

[0101] It should be noted here first that the connector 10 is used to be inserted into the second connector 400 along the first direction Z to achieve docking and conduction. Among them, the first direction Z is parallel to Figure 4 and Figure 6The Z-axis shown in the figure. The cross-sectional area of the conductive connecting member 13 refers to the area of the cross-section of the conductive connecting member 13 perpendicular to the first direction Z. The cross-sectional area of the terminal 12 refers to the area of the cross-section of the terminal 12 perpendicular to the first direction Z.

[0102] Among them, the current in the connector 10 generally flows along the first direction Z. As an example, as Figure 6 shown, the conductive connecting member 13 has the above-mentioned second mounting hole 102, and the terminal 12 has an elastic portion 122 for docking and conducting with the second connector 400. The second mounting hole 102 and the elastic portion 122 are generally distributed along the above-mentioned first direction Z, so that the current of the connector 10 generally flows along the first direction Z.

[0103] By setting the cross-sectional area of the conductive connecting member 13 to be greater than or equal to the sum of the cross-sectional areas of the plurality of terminals 12, the conductive connecting member 13 has a larger current-carrying capacity, and the current-carrying capacity of the conductive connecting member 13 is greater than or equal to the current-carrying capacity of the plurality of terminals 12. In this way, the current can flow from the battery cell 20 to the conductive connecting member 13 of the positive electrode transmission end 40 of the connector 10, and then flow to the plurality of terminals 12 respectively, and a larger current flows through each terminal 12. The current can also flow from the plurality of terminals 12 and merge to the conductive connecting member 13 of the negative electrode transmission end 50 of the connector 10, that is, the conductive connecting member 13 can be used to conduct the combined current of the plurality of terminals 12. Therefore, the connector 10 can be energized through multiple branches, so that the connector 10 can pass a larger current, and the effect of large-current energization can be achieved, so it can be applied to high-voltage and large-current application scenarios.

[0104] In some embodiments, please refer to Figure 6 and in combination with other drawings. The conductive connecting member 13 may include a first conductive portion 131 and a plurality of second conductive portions 132, and the plurality of second conductive portions 132 are arranged at intervals on the first conductive portion 131. Each second conductive portion 132 is correspondingly connected to each terminal 12 to achieve conduction.

[0105] The cross-sectional area of the conductive connecting member 13 may include the cross-sectional area of the conductive connecting member 13 at the first conductive portion 131, or may include the cross-sectional area of the conductive connecting member 13 at the second conductive portion 132. The cross-sectional area of the conductive connecting member 13 at the first conductive portion 131 refers to the area of the cross-section of the first conductive portion 131 perpendicular to the first direction Z. The cross-sectional area of the conductive connecting member 13 at the second conductive portion 132 refers to the sum of the areas of the cross-sections of the plurality of second conductive portions 132 perpendicular to the first direction Z.

[0106] As Figure 6 shown, the plurality of terminals 12 are distributed at intervals along the second direction Y, and the plurality of second conductive portions 132 are distributed at intervals along the second direction Y. The second direction Y is parallel toFigure 6 the X-axis. Among them, the first direction Z and the second direction Y are perpendicular.

[0107] In some embodiments, please refer to Figure 6 , and in combination with other drawings. The conductive connector 13 and the terminal 12 are in surface contact and connected to achieve conduction between the conductive connector 13 and the terminal 12.

[0108] The surface contact between the conductive connector 13 and the terminal 12 enables the connection between the conductive connector 13 and the terminal 12 to have a large current-carrying capacity. In this way, the terminal 12 can smoothly receive the large current of the conductive connector 13, and the conductive connector 13 can also smoothly receive the large current of the terminal 12, so that the current can flow smoothly between the terminal 12 and the conductive connector 13, thereby facilitating the connector 10 to be energized through multiple branches to improve the current-carrying capacity of the connector 10.

[0109] In some embodiments, please refer to Figure 6 , and in combination with other drawings. Both the conductive connector 13 and the terminal 12 are sheet-shaped. A part of the terminal 12 and a part of the conductive connector 13 are distributed in sequence along the thickness direction of the terminal 12 and are connected to achieve conduction between the terminal 12 and the conductive connector 13.

[0110] The conductive connector 13 being sheet-shaped means that the conductive connector 13 is generally in a sheet-like structure. The terminal 12 being sheet-shaped means that the terminal 12 is generally in a sheet-like structure.

[0111] The conductive connector 13 and the terminal 12 being substantially parallel means that the thickness direction of the conductive connector 13 and the thickness direction of the terminal 12 are substantially parallel. Among them, the thickness direction mentioned below, if not specifically defined, can be considered as the thickness direction of the terminal 12 or the thickness direction of the conductive connector 13.

[0112] A part of the terminal 12 and a part of the conductive connector 13 are distributed in sequence along the thickness direction of the terminal 12 and are connected, which means that a part of one surface of the terminal 12 along the thickness direction and a part of one surface of the conductive connector 13 along the thickness direction are sequentially stacked. Among them, one surface of the terminal 12 along the thickness direction is the largest surface of the terminal 12; one surface of the conductive connector 13 along the thickness direction is the largest surface of the conductive connector 13. In this way, surface contact can be achieved between the terminal 12 and the conductive connector 13, and there is a large contact area between the conductive connector 13 and the terminal 12. Thus, the connection between the conductive connector 13 and the terminal 12 has a large current-carrying capacity, which is convenient for improving the current-carrying capacity of the connector 10.

[0113] It should be supplemented and explained here that the thickness direction of the terminal 12 and the thickness direction of the conductive connector 13 are the third direction X, and the third direction X is parallel toFigure 5 the Y-axis therein. Among them, the first direction Z and the third direction X are perpendicular, and the second direction Y and the third direction X are perpendicular.

[0114] In some embodiments, the conductive connector 13 and the terminal 12 are separately provided.

[0115] With such a setting, the conductive connector 13 and the terminal 12 can be separately formed, that is, the conductive connector 13 and the terminal 12 can be designed according to their respective requirements, which is convenient for improving the current-carrying capacity of the connector 10.

[0116] Alternatively, in some other embodiments, the conductive connector 13 and the terminal 12 are integrally provided.

[0117] With such a setting, it is convenient for the molding of the connector 10.

[0118] In some embodiments, please refer to Figure 6 , and in combination with other drawings. The conductive connector 13 and the terminal 12 are separately provided. The conductive connector 13 and the terminal 12 adopt at least one of welding, riveting, and bolt connection to achieve connection.

[0119] As an example, as Figure 6 shown, the connector 10 further includes a fastener 14. The fastener 14 can be but is not limited to bolts and rivets. The fastener 14 sequentially passes through the conductive connector 13 and the terminal 12 to achieve the connection between the conductive connector 13 and the terminal 12, and further achieve the conduction between the conductive connector 13 and the terminal 12. Among them, when the fastener 14 is a bolt, the fastener 14 is used to achieve the bolt connection between the conductive connector 13 and the terminal 12. When the fastener 14 is a rivet, the fastener 14 is used to achieve the riveting between the conductive connector 13 and the terminal 12.

[0120] By adopting the above technical solution, the split connection between the conductive connector 13 and the terminal 12 is very simple, easy to implement, and very reliable.

[0121] In some embodiments, please refer to Figures 4 to 6 , and in combination with other drawings. The conductive connector 13 is a copper bar; or, the terminal 12 is a copper bar; or, the conductive connector 13 and the terminal 12 are respectively copper bars.

[0122] Among them, the copper bar can be a bar made of pure copper material or a bar made of copper alloy.

[0123] Through the design that the conductive connector 13 is a copper bar, the conductive connector 13 has a large current-carrying capacity, which is convenient for multiple terminals 12 to form a parallel connection, and is convenient for improving the current-carrying capacity of the connector 10.

[0124] By designing the terminal 12 as a copper bar, the terminal 12 has a large current-carrying capacity, thereby improving the current-carrying capacity of the connector 10.

[0125] In some embodiments, please refer to Figures 4 to 6 and other attached drawings in combination. The terminal 12 includes a main body portion 121 and a plurality of elastic portions 122. The main body portion 121 is disposed on the housing 11, and the plurality of elastic portions 122 are spaced apart on the main body portion 121, and the elastic portions 122 can elastically deform.

[0126] The main body portion 121 is the main part of the terminal 12. The elastic portion 122 is a component of the terminal 12 for elastically abutting against the conductive component of the second connector 400 to achieve conduction. The elastic portion 122 has elastic properties. Among them, both the main body portion 121 and the elastic portion 122 are metal components and have electrical conductivity.

[0127] By providing a plurality of elastic portions 122 on the terminal 12, the connector 10 can elastically abut against the conductive components of the second connector 400 through the plurality of elastic portions 122 to achieve a reliable conduction relationship between the terminal 12 and the second connector 400. In this way, the conduction reliability and stability between the terminal 12 and the conductive components of the second connector 400 can be improved, that is, the docking conduction reliability and stability between the connector 10 and the second connector 400 can be improved.

[0128] It should be supplemented here that the conductive connection member 13 is connected to the main body portion 121 to achieve conduction.

[0129] It should also be supplemented here that the cross-sectional area of the terminal 12 generally refers to the area of the cross-section of the main body portion 121 of the terminal 12 perpendicular to the first direction Z.

[0130] In some embodiments, please refer to Figures 4 to 6 and other attached drawings in combination. The elastic portion 122 is exposed at one end of the housing 11 along the first direction Z, so that the connector 10 and the second connector 400 can be docked and conducted. At least a part of the conductive connection member 13 is exposed at one end of the housing 11 along the first direction Z away from the elastic portion 122, so as to facilitate the connection of the conductive connection member 13 to the positive transmission end 40 or the negative transmission end 50 of the battery 100.

[0131] Please refer to Figure 2 and Figure 3 and other attached drawings in combination. The battery 100 provided in the embodiment of the present application includes a connector 10, and the connector 10 is used to transmit the electric energy of the battery 100. Among them, the connector 10 in this embodiment is the same as the connector 10 in the previous embodiment. For specific details, please refer to the relevant description of the connector 10 in the previous embodiment, which will not be elaborated here.

[0132] The second connector 400 is used to connect to the terminal 12 of the connector 10, so that the connector 10 and the second connector 400 are docked and conduct electricity.

[0133] Specifically, the battery 100 has a positive electrode transmission end 40 and a negative electrode transmission end 50, and at least one of the positive electrode transmission end 40 and the negative electrode transmission end 50 is the above-mentioned connector 10.

[0134] For the battery 100 provided in the embodiment of the present application, by adopting the connector 10 involved above, the battery 100 can achieve the effect of supplying power with a large current.

[0135] As an example, the positive electrode transmission end 40 of the battery 100 is the connector 10, the positive electrode transmission end 40 is connected to the corresponding second connector 400, and the second connector 400 is connected to the electrical device. The negative electrode transmission end 50 of the battery 100 is the connector 10, the negative electrode transmission end 50 is connected to the corresponding second connector 400, and the second connector 400 is connected to the electrical device. Based on this, the battery 100 is connected to the electrical device through the connector 10 and the second connector 400, so that the electrical device and the battery 100 form a loop, and the battery 100 can supply power to the electrical device through the connector 10.

[0136] Please refer to Figure 3 , the energy storage system 1000 provided in the embodiment of the present application includes a battery 100 and a control device 500. Among them, the battery 100 in this embodiment is the same as the battery 100 in the previous embodiment. For specific details, please refer to the relevant description of the battery 100 in the previous embodiment, which will not be elaborated here.

[0137] The control device 500 is connected to the connector 10 of the battery 100.

[0138] The control device 500 can be, but is not limited to, a main control box, a high-voltage box, a control cabinet, etc. with power control functions.

[0139] Specifically, the battery 100 has a positive electrode transmission end 40 and a negative electrode transmission end 50, and the control device 500 is electrically connected to the positive electrode transmission end 40 and the negative electrode transmission end 50 respectively. Among them, at least one of the positive electrode transmission end 40 and the negative electrode transmission end 50 is the connector 10, so that the control device 500 is connected to the connector 10 of the battery 100.

[0140] As an example, please refer to Figure 3 , the positive electrode transmission end 40 and the negative electrode transmission end 50 of the battery 100 are respectively the connector 10. The positive electrode transmission end 40 of the battery 100 is in butt conduction with the corresponding second connector 400, forming a set of connector components and connecting to the positive electrode of the control device 500. The negative electrode transmission end 50 of the battery 100 is also in butt conduction with the corresponding second connector 400, forming a set of connector components and connecting to the negative electrode of the control device 500.

[0141] Among them, the connection between the second connector 400 connected to the positive electrode transmission end 40 and the positive electrode of the control device 500 can also be achieved through another connector assembly, and the connection between the second connector 400 connected to the negative electrode transmission end 50 and the negative electrode of the control device 500 can also be achieved through another connector assembly.

[0142] Among them, in the energy storage system 1000, the number of batteries 100 can be one or more.

[0143] The energy storage system 1000 provided by the embodiments of the present application, by adopting the battery 100 involved above, enables the connector 10 to achieve the effect of large current conduction, facilitating the energy storage system 1000 to provide a large current power supply to the electrical equipment. And, the electrical equipment can be connected to the control device 500, so that the control device 500 can control the battery 100 to supply power to the electrical equipment.

[0144] In some embodiments, please continue to refer to Figure 3 , and in combination with other drawings. The number of batteries 100 is multiple, and the multiple batteries 100 are electrically connected through the connector 10 to form a battery assembly. The battery assembly has a total positive electrode 40a and a total negative electrode 50a, and the control device 500 is electrically connected to the total positive electrode 40a and the total negative electrode 50a. Only the total positive electrode 40a is the connector 10; or, only the total negative electrode 50a is the connector 10; or, the total positive electrode 40a and the total negative electrode 50a are respectively the connector 10.

[0145] The multiple batteries 100 are electrically connected through the connector 10, which can be that the multiple batteries 100 are connected in series, or the multiple batteries 100 are connected in parallel, or the multiple batteries 100 form a series-parallel hybrid connection relationship with both series and parallel connections, so that the multiple batteries 100 form a battery assembly.

[0146] The multiple batteries 100 are electrically connected through the connector 10 means that at least two adjacent batteries 100 are connected through the connector 10. As an example, among two adjacent batteries 100, the positive electrode transmission end 40 of one battery 100 is connected to the negative electrode transmission end 50 of the other battery 100 to achieve the series connection of the two batteries 100, and at least one of the positive electrode transmission end 40 and the negative electrode transmission end 50 is the connector 10. As another example, as Figure 3 shown, among two adjacent batteries 100, the positive electrode transmission end 40 of one battery 100 is connected to the corresponding second connector 400, the negative electrode transmission end 50 of the other battery 100 is connected to the corresponding second connector 400, and the second connectors 400 of the two batteries 100 are connected to achieve the series connection of the two batteries 100.

[0147] In a battery assembly, when multiple batteries 100 are electrically connected, there is a case where the positive transmission terminal 40 of one battery 100 is not electrically connected to other batteries 100, and the positive transmission terminal 40 of this battery 100 constitutes the total positive electrode 40a of the battery assembly; there is also a case where the negative transmission terminal 50 of one battery 100 is not electrically connected to other batteries 100, and the negative transmission terminal 50 of this battery 100 constitutes the total negative electrode 50a of the battery assembly.

[0148] The total positive electrode 40a is connected to the positive electrode of the control device 500, and the total negative electrode 50a is connected to the negative electrode of the control device 500.

[0149] As an example, as Figure 3 shown, the total positive electrode 40a and the total negative electrode 50a are respectively connectors 10. The total positive electrode 40a is connected to the corresponding second connector 200, and the connection between the second connector 400 and the positive electrode of the control device 500 is achieved through another connector assembly. The total negative electrode 50a is connected to the corresponding second connector 200, and the connection between this second connector 400 and the negative electrode of the control device 500 is achieved through another connector assembly.

[0150] With such a setting, an electrical device can be connected to the control device 500, so that the control device 500 can control multiple batteries 100 to supply power to the electrical device. Through the setting of the connector 10, the control device 500 can control the battery 100 to provide a relatively large current power supply to the electrical device.

[0151] Please refer to Figure 1 , the electrical device provided by the embodiment of the present application includes a battery 100, and the battery 100 is used to supply power to the electrical device.

[0152] For the electrical device provided by the embodiment of the present application, by adopting the battery 100 involved above, the battery 100 of the electrical device can achieve the effect of providing a large current to the electrical device.

[0153] As one of the embodiments of the present application, as Figures 4 to 6 shown, the connector 10 includes a housing 11, a conductive connection member 13, and a plurality of terminals 12. The plurality of terminals 12 are spaced apart and distributed in the housing 11, and each terminal 12 is exposed outside the housing 11. The conductive connection member 13 is connected to the plurality of terminals 12 to make the plurality of terminals 12 connected in parallel.

[0154] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A battery, characterized in that: It includes a battery cell and a connector, wherein the connector is used to transmit the electric energy of the battery, and the connector includes: case; A plurality of terminals are arranged in parallel in the housing; Wherein, the terminal is electrically connected to the battery cell.

2. The battery according to claim 1, characterized in that The connector further includes a conductive connection member, wherein the conductive connection member connects the plurality of terminals to connect the plurality of terminals in parallel.

3. The battery according to claim 2, characterized in that The cross-sectional area of ​​the conductive connection member is greater than or equal to the sum of the cross-sectional areas of the plurality of terminals.

4. The battery according to claim 2, characterized in that The conductive connecting member is in contact with and connected to the terminal surface.

5. The battery according to any one of claims 2 to 4, characterized in that: The conductive connecting member and the terminal are both in sheet shape, and a portion of the terminal and a portion of the conductive connecting member are sequentially distributed and connected along a thickness direction of the terminal.

6. The battery according to any one of claims 2 to 4, characterized in that: The conductive connector and the terminal are arranged separately or integrally.

7. The battery according to claim 6, characterized in that The conductive connector and the terminal are separately provided, and the conductive connector and the terminal are welded and / or riveted and / or bolted.

8. The battery according to any one of claims 2 to 4, characterized in that: The conductive connecting member and / or the terminal is a copper bar.

9. The battery according to any one of claims 1 to 4, characterized in that: The terminal comprises: A main body, arranged on the shell; A plurality of elastic parts are arranged at intervals on the main body and can be elastically deformed.

10. An energy storage system, characterized in that: The invention comprises a control device and a battery according to any one of claims 1 to 9, wherein the control device is electrically connected to the connector of the battery.

11. The energy storage system according to claim 10, characterized in that: The number of the batteries is multiple, and the multiple batteries are electrically connected through the connector to form a battery assembly; the battery assembly has a total positive electrode and a total negative electrode, the control device is electrically connected to the total positive electrode and the total negative electrode, and the total positive electrode and / or the total negative electrode is the connector.

12. An electrical equipment, characterized in that: Comprising a battery according to any one of claims 1-9.

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