Battery device and electric equipment

Abstract

The invention relates to the technical field of batteries, and provides a battery device and electric equipment. The battery device comprises a battery box, and a containing space is defined in the battery box; the battery monomer assembly is accommodated in the accommodating space, the battery monomer assembly comprises a plurality of columns of battery monomers, the plurality of columns of battery monomers are arranged along a first direction, each column of battery monomers comprises a plurality of rows of battery monomers arranged along a second direction, and the second direction is intersected with the first direction; the plurality of battery monomers of the battery monomer assembly are connected in series through the plurality of electric connecting pieces, the total positive output pole and the total negative output pole of the plurality of battery monomers are positioned on the same side of the battery device along the second direction, the column number of the battery monomers is m, m is an odd number and is greater than 1, and the row number of the battery monomers is n, and n is greater than 1. Through the technical scheme of the invention, the connection with the electric equipment can be realized only through the space on one side of the battery device, and the connection efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery device and electrical equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] At present, with the rapid development of new energy vehicles, battery devices are increasingly entering the public's field of vision. Among them, the battery device usually includes a battery box and a battery cell assembly arranged in the battery box. In the related art, when multiple battery cells of the battery cell assembly are arranged in groups in odd columns, the battery device has the problem of increased connection space required for the electrical equipment and inconvenient connection. Summary of the invention

[0004] The purpose of the present application is to provide a battery device and an electrical device, which are used to at least solve the problem that the connection space required for the battery device and the electrical device is increased and the connection is inconvenient when multiple battery cells are arranged in an odd number of rows. This purpose is achieved through the following technical solutions: In a first aspect, the present application provides a battery device, comprising: a battery box, the battery box defining a storage space; a battery cell assembly, accommodated in the storage space, the battery cell assembly comprising a plurality of columns of battery cells, the plurality of columns of battery cells being arranged along a first direction, each column of battery cells comprising a plurality of rows of battery cells arranged along a second direction, the second direction being arranged to intersect with the first direction, each of the battery cells being provided with a positive output electrode and a negative output electrode of opposite polarities, and along the first direction, the positive output electrodes and the negative output electrodes of two adjacent battery cells in each row of battery cells are alternately arranged in sequence, and along the second direction, the two adjacent battery cells in each column of battery cells are arranged alternately in sequence. The positive output pole and the negative output pole are staggered in sequence, the total positive output pole of the plurality of battery cells is located at a battery cell in the last column of the first row of the battery cell assembly, and the total negative output pole of the battery cells is located at a battery cell in the first row and the first column of the battery cell assembly; a plurality of electrical connectors, the plurality of battery cells of the battery cell assembly are connected in series through the plurality of electrical connectors, and the total positive output pole and the total negative output pole of the plurality of battery cells are respectively located on the same side of the battery device along the second direction, wherein the number of columns of the battery cells is m, m is an odd number and m is greater than 1, and the number of rows of the battery cells in each column is n, and n is greater than 1.

[0005] According to the battery device provided in the present application, a plurality of battery cells of a battery cell assembly are arranged in an odd number of columns greater than 1 along a first direction, and a plurality of battery cells of each column of battery cells are arranged in a second direction intersecting the first direction, wherein the plurality of battery cell assemblies are connected in series via a plurality of electrical connectors. Furthermore, after the plurality of battery cells are connected in series, a total positive output pole and a total negative output pole are reserved, and the total positive output pole and the total negative output pole of the plurality of battery cells are located on the same side of the battery device along the first direction. When an electrical connection is made between an electrical equipment (such as a vehicle) and the total positive output pole and the total negative output pole of the battery device, only the space on the same side of the battery device is utilized, without occupying the space on both sides of the battery device along the first direction. This reduces the connection space required for the electrical connection between the battery device and the electrical equipment, helps to simplify the arrangement of connectors such as lines between the battery device and the electrical equipment, and facilitates the electrical connection between the battery device and the electrical equipment.

[0006] Specifically, since the positive output poles and negative output poles of two adjacent battery cells in each row of battery cells are alternately arranged in sequence, it is convenient for two adjacent battery cells in each row of battery cells to be connected in series. In addition, by staggering the positive output poles and negative output poles of two adjacent battery cells in each column of battery cells in sequence, it is convenient for two adjacent battery cells in each column of battery cells to be connected in series, which helps to simplify the structural form of the electrical connector and improve the connection efficiency. By reserving a total positive output pole for a battery cell located in the last column of the first row of the battery cell assembly, and the negative output pole of the battery cell is connected in series with the positive output pole of an adjacent battery cell. A battery cell located in the first column of the first row of the battery cell assembly is reserved with a total negative output pole, and the positive output pole of the battery cell is connected in series with the negative output pole of an adjacent battery cell, and a battery cell located in the last column of the first row and multiple battery cells located between the first battery cell in the first row are connected in series through multiple electrical connectors, so that electric energy can be output when the battery device is electrically connected to the electrical equipment.

[0007] In addition, the battery device provided in this application may also have the following additional technical features: In some embodiments of the present application, the multiple electrical connectors include multiple first electrical connectors and multiple second electrical connectors, the first electrical connectors are used to connect in series two of the battery cells arranged along the first direction, and the second electrical connectors are used to connect in series two of the battery cells arranged along the second direction, wherein the number of the first electrical connectors is not less than m+n-2.

[0008] In the above technical solution, the battery cells arranged along the first direction among the multiple battery cells are electrically connected through the first electrical connector, and the battery cells arranged along the second direction among the multiple battery cells are electrically connected through the second electrical connector. It can be understood that when the total number of battery cells is t, the total number of first electrical connectors and second electrical connectors is t-1. If the total positive output pole and the total negative output pole of the multiple battery cells are to be located on the same side of the battery device along the first direction, the number of first electrical connectors required is not less than m+n-2, that is, when the multiple battery cells arranged along the first direction are electrically connected, the number of first electrical connectors required is not less than the sum of the number of columns m and the number of rows n minus 2 for electrical connection.

[0009] In some embodiments of the present application, when m is greater than 3 and n is an odd number, a plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row through the first electrical connectors and the second electrical connectors that are alternately arranged; a battery cell located in the last row of the second column is connected in series with a battery cell located in the last row of the third column through a first electrical connector, and along the first direction, for the plurality of battery cells located in the last row, one first electrical connector is provided for every two columns of battery cells from a battery cell located in the last row of the third column; along the first direction, for the plurality of battery cells located in the first row, one first electrical connector is provided for every two columns of battery cells from a battery cell in the first row of the first column; along the second direction, the plurality of battery cells from the third column to the last column are electrically connected through a plurality of second electrical connectors.

[0010] In the above technical solution, when the number of columns of multiple battery cells is greater than 3 and the number of rows is an odd number greater than 1, the battery cell located in the first column and the first row has a total negative output electrode, and the total negative output electrode is located at the end of the battery cell along the first direction. A plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row in sequence through the first electrical connectors and the second electrical connectors that are alternately arranged, that is, the positive output electrode of the battery cell with a total negative output electrode is electrically connected to the negative output electrode of the battery cell in the first row of the second column through a first electrical connector, the positive output electrode of the battery cell in the first row of the second column is electrically connected to the negative output electrode of the battery cell in the second row of the second column through a second electrical connector, the positive output electrode of the battery cell in the second row of the second column is electrically connected to the negative output electrode of the battery cell in the second row of the first column through a first electrical connector, the positive output electrode of the battery cell in the second row of the first column is electrically connected to the negative output electrode of the battery cell in the third row of the first column through a second electrical connector, and then the plurality of battery cells in the first column and the second column are connected in a cycle until they are connected to a battery cell in the last row of the second column. A battery cell located in the last row of the second column is connected in series with a battery cell located in the last row of the third column through a first electrical connector, and along the first direction, the multiple battery cells located in the last row are electrically connected by a first electrical connector every two columns of battery cells starting from the battery cells located in the last row of the third column; along the first direction, the multiple battery cells located in the first row are electrically connected by a first electrical connector every two columns of battery cells starting from the battery cells in the first row of the first column; along the second direction, the multiple battery cells from the third column to the last column are electrically connected by a plurality of second electrical connectors until the positive output poles of the battery cells in the first row of the last column are electrically connected by the second electrical connector, and the total negative output pole is reserved.

[0011] In some embodiments of the present application, when m is equal to 3 and n is an odd number, the plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row through the alternating first electrical connectors and the second electrical connectors; a battery cell located in the last row of the second column is connected in series with a battery cell located in the last row of the third column through a first electrical connector; and the plurality of battery cells located in the third column are connected in series from the last row to the first row through a plurality of the second electrical connectors.

[0012] In the above technical solution, when the number of columns m of the plurality of battery cells is 3, and the number of rows n is an odd number greater than 1, the battery cells located in the first row of the first column have a total negative output electrode, and the total negative output electrode is located at the end of the battery cell along the first direction, and the positive output electrode of the battery cell is electrically connected to the negative output electrode of the battery cell in the first row of the second column through a first electrical connector, and the positive output electrode of the battery cell in the first row of the second column is electrically connected to the negative output electrode of the battery cell in the second row of the second column through a second electrical connector, and the battery cell in the second column The positive output pole of the battery cell in the second row is electrically connected to the negative output pole of the battery cell in the second row of the first column through a first electrical connector, the positive output pole of the battery cell in the second row of the first column is electrically connected to the negative output pole of the battery cell in the third row of the first column through a second electrical connector, the positive output pole of the battery cell in the third row of the first column is electrically connected to the negative output pole of the battery cell in the third row of the second column through a first electrical connector, and the cycle continues until it is connected to a battery cell in the last row of the second column. The battery cell in the last row of the second column is then connected in series with a battery cell in the last row of the third column through a first electrical connector; multiple battery cells in the third column are connected in series from the last row to the first row through multiple second electrical connectors in sequence until the negative output pole of the battery cell in the first row of the third column is electrically connected to reserve the total positive output pole.

[0013] In some embodiments of the present application, when m is greater than 3 and n is an even number, a plurality of battery cells in the first column are connected in series through a plurality of the second electrical connectors, and a battery cell in the last row of the first column and a battery cell in the last row of the last column are connected in series through a first electrical connector; along the first direction, a plurality of battery cells in the last row and between the last column and the second column are connected in series through a plurality of the first electrical connectors; along the second direction, a plurality of battery cells in the second column are connected in series through a second electrical connector every two rows from the last row to the first row, and a plurality of battery cells in the last column are connected in series through a second electrical connector every other row of battery cells.

[0014] In the above technical solution, when multiple battery cells are arranged in an odd number of columns greater than 3, and the number of rows of multiple battery cells is an even number, in order to realize that the total positive output electrode and the total negative output electrode of multiple battery cells are located on the same side of the battery device along the second direction, when multiple battery cells are connected in series, the end of the battery cell located in the first row of the first column reserves a total negative output electrode, and the positive output electrode of the battery cell is electrically connected to the negative output electrode of the battery cell in the second row of the first column through a second electrical connector, and the positive output electrode of the battery cell located in the second row of the first column is further electrically connected to the negative output electrode of the battery cell located in the third row of the first column through a second electrical connector, and this connection method is adopted until it is connected to the battery cell in the last row of the first column, and the positive output electrode of the battery cell in the last row of the first column needs to be electrically connected to the negative output electrode of the battery cell in the last row of the last column through a first electrical connector. Further, along the first direction, multiple battery cells located in the last row and between the last column and the second column are connected in series through multiple first electrical connectors. Along the second direction, the multiple battery cells located in the second column are electrically connected by a second electrical connector every two rows of battery cells from the last row to the first row, and the multiple battery cells located in the last column are electrically connected by a second electrical connector every other row of battery cells until the total positive output pole is reserved for the battery cells located in the first row of the last column.

[0015] In some embodiments of the present application, when m is equal to 3 and n is an even number, a plurality of the battery cells located in the first column are connected in series through a plurality of the second electrical connectors, and a battery cell located in the last row of the first column is connected in series with a battery cell located in the last row of the third column; a plurality of the battery cells located between the third column and the second column are sequentially connected in series through the alternating first electrical connectors and the second electrical connectors.

[0016] In the above technical solution, when multiple battery cells are arranged in an odd number of columns equal to 3, and the number of rows of the multiple battery cells is an even number, in order to realize that the total positive output electrode and the total negative output electrode of the multiple battery cells are located on the same side of the battery device along the second direction, when the multiple battery cells are connected in series, the end of the battery cell located in the first row of the first column reserves a total negative output electrode, and the positive output electrode of the battery cell is electrically connected to the negative output electrode of the battery cell in the second row of the first column through a second electrical connector, and the positive output electrode of the battery cell located in the second row of the first column is further connected to the negative output electrode of the battery cell in the second row of the first column through a The second electrical connector is electrically connected to the negative output pole of the battery cell located in the third row of the first column, and this connection method is used until it is connected to the battery cell in the last row of the first column. The positive output pole of the battery cell in the last row of the first column needs to be electrically connected to the negative output pole of the battery cell located in the last row of the third column through a first electrical connector, and then the multiple battery cells located between the third column and the second column are connected in series in turn through the alternating first electrical connectors and the second electrical connectors until the total positive output pole is reserved for the battery cells in the first row of the third column.

[0017] In some embodiments of the present application, a positive output pole base and a negative output pole base are spaced apart on one side of the battery box along the second direction, the positive output pole base is electrically connected to the total positive output pole of the battery cell assembly, and the negative output pole base is electrically connected to the total negative output pole of the battery cell assembly.

[0018] In the above technical solution, a positive output pole base and a negative output pole base are arranged on one side of the battery box along the second direction, and the positive output pole base and the negative output pole base are arranged at intervals along the first direction, and are respectively electrically connected to the total positive output pole and the total negative output pole of multiple battery cells, thereby facilitating electrical connection between the battery device and the electrical equipment to supply power to the electrical equipment.

[0019] In some embodiments of the present application, the battery box includes a first box body and a second box body, the first box body covers the second box body and defines the accommodating space between the first box body and the second box body, the second box body includes an end plate arranged along the second direction, and the positive output pole base and the negative output pole base are arranged at intervals on the end plate along the first direction.

[0020] In the above technical solution, the battery cell assembly is accommodated in the accommodating space defined by the first box body and the second box body, wherein an end plate is provided on one side of the second box body along the second direction, and the positive output pole base and the negative output pole base are spaced apart from the end plate along the first direction, and are respectively used to electrically connect to the total positive output pole and the total negative output pole of multiple battery cells in the battery box through electrical connectors, thereby facilitating electrical connection with electrical equipment.

[0021] In a second aspect, the present application provides an electrical device, comprising a battery device as described in any one of the embodiments of the first aspect, wherein the battery device is used to supply power to the electrical device.

[0022] The electrical equipment provided in the present application includes the battery device described in any one of the embodiments of the first aspect, and thus also has the technical effects of any of the above embodiments, which will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those skilled in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. In addition, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of the structure of a vehicle provided in some embodiments of the present application; Figure 2 A schematic diagram of the exploded structure of a battery device provided in some embodiments of the present application; Figure 3 A schematic diagram of the structure of a battery cell provided in some embodiments of the present application; Figure 4 A schematic diagram of the structure of a battery cell assembly provided in some embodiments of the present application; Figure 5 A schematic structural diagram of another battery cell assembly provided in some embodiments of the present application; Figure 6 A schematic structural diagram of another battery cell assembly provided in some embodiments of the present application; in, Figures 4 to 6 The direction of the X-axis of the mid-coordinate system represents the first direction, and the direction of the Y-axis represents the second direction.

[0024] The reference numerals are as follows: 1000. Vehicles; 100, battery device; 200, controller; 300, motor; 10. Battery box; 11. First box body; 12. Second box body; 20. Battery cell assembly; 21. Battery cell; 211. Outer shell; 212. End cover; 2121. Positive output pole; 2122. Negative output pole; 213. Electrode assembly; 22. First electrical connector; 23. Second electrical connector; 24. Total positive output pole; 25. Total negative output pole. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0027] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0030] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0031] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0032] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. According to ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0033] At present, from the perspective of market development, the application of battery devices is becoming more and more extensive. Battery devices are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as aerospace and other fields. With the continuous expansion of the application field of battery devices, the market demand is also constantly expanding.

[0034] The battery device generally includes a battery box and a battery cell assembly disposed in the battery box. In the related art, the battery cell assembly is generally arranged in an even number of columns. When the battery cells of the battery cell assembly are arranged in groups in an odd number of columns, the total positive output pole and the total negative output pole of the battery cells are generally located on different sides of the battery device, resulting in an increase in the connection space required for the battery device to connect to the electrical equipment and inconvenience in connection.

[0035] In order to solve the problem that when multiple battery cells of a battery cell assembly are arranged in an odd-numbered column, the total positive output pole and the total negative output pole of the multiple battery cells are usually located on different sides of the battery device, resulting in an increase in the connection space required for the battery device to connect with the electrical equipment and inconvenience in connection, the present application designs a battery device, including a battery box and a battery cell assembly accommodated in the battery box, wherein the battery cell assembly includes battery cells arranged in an odd-numbered column greater than 1 along a first direction, each column of battery cells includes a plurality of rows of battery cells arranged along a second direction, and the multiple battery cells of the battery cell assembly are connected by a plurality of electrical connections. The connectors are connected in series, and after the plurality of battery cells are connected in series, they have a total positive output pole and a total negative output pole, and the total positive output pole and the total negative output pole are located on the same side of the battery device along the second direction, so that when the electrical equipment (such as a vehicle) is electrically connected to the total positive output pole and the total negative output pole of the battery device, it is only necessary to use the space on the same side of the battery device, without occupying the space on both sides of the battery device along the first direction, thereby reducing the connection space required for the electrical connection between the battery device and the electrical equipment, helping to simplify the arrangement of connectors such as lines between the battery device and the electrical equipment, and improving the connection efficiency between the battery device and the electrical equipment.

[0036] The battery device 100 disclosed in the embodiment of the present application can be used in, but not limited to, electric devices such as vehicles, ships or aircraft. The power supply system of the electric device can be composed of the battery device disclosed in the present application, which helps to save the connection space between the battery device and the electric device and improve the connection efficiency between the battery device and the electric device.

[0037] The embodiment of the present application provides an electric device using a battery device as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0038] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device in an embodiment of the present application.

[0039] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is provided inside the vehicle 1000, and the battery device 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery device 100 may be used to power the vehicle 1000, for example, the battery device 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0040] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0041] See also Figure 2 , Figure 2 Schematic diagram of the exploded structure of a battery device provided in some embodiments of the present application. In some embodiments, the battery device 100 may be a battery pack, which includes a battery box 10 and one or more battery cell assemblies 20, and the battery cell assemblies 20 are accommodated in the battery box.

[0042] As an example, the battery cell assembly 20 may be accommodated in the battery box 10 by fixing the battery module in the battery box.

[0043] As an example, the battery cell assembly 20 may also be accommodated in the battery box 10 by directly fixing a plurality of battery cells to the battery box 10 .

[0044] The battery cell assembly 20 may include a plurality of battery cells 21 , and the plurality of battery cells 21 are connected in series through a plurality of electrical connectors.

[0045] See also Figure 3 , Figure 3 Schematic diagram of the exploded structure of a battery cell provided for some embodiments of the present application. In some embodiments, the battery cell 21 includes a housing 211, an electrode assembly 213 and an end cap 212, the housing 211 defines an installation space, the installation space has an opening, the electrode assembly 213 is accommodated in the installation space, the end cap 212 is sealed at the opening, and is provided with a positive output pole 2121 and a negative output pole 2122.

[0046] The technical solutions described in the embodiments of the present application are applicable to various electrical devices that use battery cells, such as mobile phones, portable devices, laptops, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0047] See also Figures 4 to 6 , Figure 4 A schematic diagram of the structure of a battery cell assembly provided in some embodiments of the present application; Figure 5 A schematic structural diagram of another battery cell assembly provided in some embodiments of the present application; Figure 6 A schematic diagram of the structure of another battery cell assembly provided for some embodiments of the present application. The embodiment of the present application provides a battery device 100, including: a battery box 10, a battery cell assembly 20 and a plurality of electrical connectors. Among them, the battery box 10 defines a accommodating space; the battery cell assembly 20 is accommodated in the accommodating space, the battery cell assembly 20 includes a plurality of columns of battery cells 21, the plurality of columns of battery cells are arranged along a first direction, each column of battery cells includes a plurality of rows of battery cells arranged along a second direction, the second direction is arranged to intersect with the first direction, each battery cell 21 is provided with a positive output pole 2121 and a negative output pole 2122 with opposite polarities, along the first direction, the positive output pole 2121 and the negative output pole 2122 of two adjacent battery cells in each row of battery cells are arranged alternately in sequence; along the second direction, The positive output poles 2121 and negative output poles 2122 of two adjacent battery cells in each column of battery cells are staggered in sequence, the total positive output pole 24 of multiple battery cells is located at a battery cell in the last column of the first row of the battery cell assembly 20, and the total negative output pole 25 of the battery cells is located at a battery cell in the first column of the first row of the battery cell assembly 20; the multiple battery cells of the battery cell assembly 20 are connected in series through multiple electrical connectors, and the total positive output poles 24 and total negative output poles 25 of the multiple battery cells are respectively located on the same side of the battery device 100 along the second direction. The number of columns of battery cells is m, m is an odd number and m is greater than 1, and the number of rows of battery cells in each column is n, n is greater than 1.

[0048] In some embodiments, the battery box 10 can be used as part of the chassis structure of the vehicle 1000. For example, part of the battery box 10 can become at least a part of the floor of the vehicle 1000, or part of the battery box 10 can become at least a part of the cross beam and longitudinal beam of the vehicle 1000.

[0049] As an example, the battery cell assembly 20 may be a battery module (Battery Module), and the battery module may be formed by bundling a plurality of battery cells 21 by a cable tie.

[0050] As an example, the electrical connector may be a tab.

[0051] According to the battery device 100 provided by the present application, a plurality of battery cells 21 of a battery cell assembly 20 are arranged in an odd number of columns greater than 1 along a first direction, and a plurality of battery cells in each column of battery cells are arranged in a second direction intersecting the first direction, wherein the plurality of battery cell assemblies 20 are connected in series through a plurality of electrical connectors, and furthermore, after the plurality of battery cells are connected in series, a total positive output electrode 24 and a total negative output electrode 25 are reserved, and the total positive output electrode 24 and the total negative output electrode 25 of the plurality of battery cells are located in the battery device 100 along the same side of the first direction, when the electrical equipment (such as vehicle 1000) and the total positive output pole 24 and the total negative output pole 25 of the battery device 100 are electrically connected, only the space on the same side of the battery device 100 is needed, and there is no need to occupy the space on both sides of the battery device 100 along the first direction, which reduces the connection space required for the electrical connection between the battery device 100 and the electrical equipment, helps to simplify the layout of the connecting parts such as the lines between the battery device 100 and the electrical equipment, and can facilitate the electrical connection between the battery device 100 and the electrical equipment.

[0052] Specifically, since the positive output poles 2121 and negative output poles 2122 of two adjacent battery cells in each row of battery cells are alternately arranged in sequence, it is convenient for two adjacent battery cells in each row of battery cells to be connected in series. In addition, by staggering the positive output poles 2121 and negative output poles 2122 of two adjacent battery cells in each column of battery cells in sequence, it is convenient for two adjacent battery cells in each column of battery cells to be connected in series, which helps to simplify the structural form of the electrical connector and improve the connection efficiency. By reserving the total positive output pole 24 of a battery cell located in the last column of the first row of the battery cell assembly 20, the negative output pole 2122 of the battery cell is connected in series with the positive output pole 2121 of an adjacent battery cell. A battery cell located in the first row and the first column of the battery cell assembly 20 has a total negative output pole 25 reserved, the positive output pole 2121 of the battery cell is connected in series with a negative output pole 2122 of an adjacent battery cell, and a battery cell located in the last column of the first row and multiple battery cells located between the first battery cell in the first row are connected in series through multiple electrical connectors, so that electrical energy can be output when the battery device 100 is electrically connected to an electrical device.

[0053] According to some embodiments of the present application, the multiple electrical connectors include multiple first electrical connectors 22 and multiple second electrical connectors 23, the first electrical connectors 22 are used to connect in series two battery cells arranged along a first direction, and the second electrical connectors 23 are used to connect in series two battery cells arranged along a second direction, wherein the number of the first electrical connectors 22 is not less than m+n-2.

[0054] The battery cells arranged along the first direction among the multiple battery cells are electrically connected through the first electrical connector 22, and the battery cells arranged along the second direction among the multiple battery cells are electrically connected through the second electrical connector 23. It can be understood that when the total number of battery cells is t, the total number of the first electrical connector 22 and the second electrical connector 23 is t-1, and if the total positive output pole 24 and the total negative output pole 25 of the multiple battery cells are to be located on the same side of the battery device 100 along the first direction, the number of the first electrical connectors 22 is required to be not less than m+n-2, that is, when the multiple battery cells arranged along the first direction are electrically connected, not less than the sum of the number of columns m and the number of rows n minus 2 first electrical connectors 22 are required for electrical connection.

[0055] See also Figure 5 According to some embodiments of the present application, according to the case where m is greater than 3 and n is an odd number, a plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row in sequence through alternately arranged first electrical connectors 22 and second electrical connectors 23; a battery cell located in the last row of the second column is connected in series with a battery cell located in the last row of the third column through a first electrical connector 22, and along the first direction, for the plurality of battery cells located in the last row, a first electrical connector 22 is provided for every two columns of battery cells from a battery cell located in the last row of the third column; along the first direction, for the plurality of battery cells located in the first row, a first electrical connector 22 is provided for every two columns of battery cells from a battery cell in the first row of the first column of battery cells; along the second direction, the plurality of battery cells from the third column to the last column are electrically connected through a plurality of second electrical connectors 23.

[0056] When the number of columns of the plurality of battery cells is greater than 3, and the number of rows is an odd number greater than 1, the battery cells located in the first row of the first column have a total negative output electrode 25, and the total negative output electrode 25 is located at the end of the battery cell along the first direction. The plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row through the first electrical connectors 22 and the second electrical connectors 23 that are alternately arranged, that is, the positive output electrode 2121 of the battery cell having the total negative output electrode 25 is electrically connected to the negative output electrode 2122 of the battery cell in the first row of the second column through a first electrical connector 22, and the positive output electrode 2121 of the battery cell in the first row of the second column is further electrically connected to the negative output electrode 2122 of the battery cell in the second row of the second column through a second electrical connector 23. Electrical connection, the positive output pole 2121 of the battery cell located in the second row of the second column is electrically connected to the negative output pole 2122 of the battery cell located in the second row of the first column through a first electrical connector 22, the positive output pole 2121 of the battery cell located in the second row of the first column is electrically connected to the negative output pole 2122 of the battery cell located in the third row of the first column through a second electrical connector 23, and then multiple battery cells in the first and second columns are connected in a cycle until they are connected to a battery cell located in the last row of the second column. A battery cell located in the last row of the second column is connected in series with a battery cell located in the last row of the third column through a first electrical connector 22, and along the first direction, the multiple battery cells located in the last row are electrically connected through a first electrical connector 22 every two columns of battery cells starting from the battery cells located in the last row of the third column; along the first direction, the multiple battery cells located in the first row are electrically connected through a first electrical connector 22 every two columns of battery cells starting from the battery cells in the first row of the first column; along the second direction, the multiple battery cells from the third column to the last column are electrically connected through multiple second electrical connectors 23 until the positive output pole 2121 of the battery cells in the first row of the last column is electrically connected by the second electrical connection, and the total negative output pole 25 is reserved.

[0057] See also Figure 4 In some embodiments of the present application, when m is equal to 3 and n is an odd number, a plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row through alternating first electrical connectors 22 and second electrical connectors 23; a battery cell located in the last row of the second column is connected in series with a battery cell located in the last row of the third column through a first electrical connector 22; and a plurality of battery cells located in the third column are connected in series from the last row to the first row through a plurality of second electrical connectors 23.

[0058] When the number of columns m of the plurality of battery cells is 3, and the number of rows n is an odd number greater than 1, the battery cell located in the first row of the first column has a total negative output electrode 25, and the total negative output electrode 25 is located at the end of the battery cell along the first direction, and the positive output electrode 2121 of the battery cell is electrically connected to the negative output electrode 2122 of the battery cell in the first row of the second column through a first electrical connector 22, and the positive output electrode 2121 of the battery cell in the first row of the second column is further electrically connected to the negative output electrode 2122 of the battery cell in the second row of the second column through a second electrical connector 23, and the battery cell in the second row of the second column The positive output pole 2121 is then electrically connected to the negative output pole 2122 of the battery cell in the second row of the first column through a first electrical connector 22, and the positive output pole 2121 of the battery cell in the second row of the first column is then electrically connected to the negative output pole 2122 of the battery cell in the third row of the first column through a second electrical connector 23, and the positive output pole 2121 of the battery cell in the third row of the first column is then electrically connected to the negative output pole 2122 of the battery cell in the third row of the second column through a first electrical connector 22, and the cycle continues until it is connected to a battery cell in the last row of the second column. The battery cell in the last row of the second column is then connected in series with a battery cell in the last row of the third column through a first electrical connector 22; multiple battery cells in the third column are connected in series from the last row to the first row through multiple second electrical connectors 23 in sequence, until the negative output pole 2122 of the battery cell in the first row of the third column is electrically connected, so as to reserve the total positive output pole 24.

[0059] According to some embodiments of the present application, when m is greater than 3 and n is an even number, a plurality of battery cells located in the first column are connected in series via a plurality of second electrical connectors 23, and a battery cell located in the last row of the first column and a battery cell located in the last row of the last column are connected in series via a first electrical connector 22; along a first direction, a plurality of battery cells located in the last row and between the last column and the second column are connected in series via a plurality of first electrical connectors 22; along a second direction, a plurality of battery cells located in the second column are connected in series via a second electrical connector 23 every two rows of battery cells from the last row to the first row, and a plurality of battery cells located in the last column are connected in series via a second electrical connector 23 every other row of battery cells.

[0060] When multiple battery cells are arranged in an odd number of columns greater than 3, and the number of rows of the multiple battery cells is an even number, in order to achieve that the total positive output electrode 24 and the total negative output electrode 25 of the multiple battery cells are located on the same side of the battery device 100 along the second direction, when the multiple battery cells are connected in series, a total negative output electrode 25 is reserved at the end of the battery cell located in the first row of the first column, and the positive output electrode 2121 of the battery cell is electrically connected to the negative output electrode 2122 of the battery cell in the second row of the first column through a second electrical connector 23, and the positive output electrode 2121 of the battery cell located in the second row of the first column is further electrically connected to the negative output electrode 2122 of the battery cell located in the third row of the first column through a second electrical connector 23, and this connection method is used until it is connected to the battery cell in the last row of the first column, and the positive output electrode 2121 of the battery cell in the last row of the first column needs to be electrically connected to the negative output electrode 2122 of the battery cell in the last row of the last column through a first electrical connector 22. Furthermore, along the first direction, the multiple battery cells located in the last row and between the last column and the second column are connected in series through multiple first electrical connectors 22. Along the second direction, the multiple battery cells located in the second column are electrically connected through a second electrical connector 23 every two rows of battery cells from the last row to the first row, and the multiple battery cells located in the last column are electrically connected through a second electrical connector 23 every other row of battery cells until the total positive output pole 24 is reserved for the battery cells located in the first row of the last column.

[0061] See also Figure 6 According to some embodiments of the present application, when m is equal to 3 and n is an even number, a plurality of battery cells located in the first column are connected in series through a plurality of second electrical connectors 23, and a battery cell located in the last row of the first column is connected in series with a battery cell located in the last row of the third column; a plurality of battery cells located between the third column and the second column are connected in series in sequence through alternately arranged first electrical connectors 22 and second electrical connectors 23.

[0062] When the plurality of battery cells are arranged in an odd number of columns equal to 3, and the number of rows of the plurality of battery cells is an even number, in order to realize that the total positive output electrode 24 and the total negative output electrode 25 of the plurality of battery cells are located on the same side of the battery device 100 along the second direction, when the plurality of battery cells are connected in series, the end of the battery cell located in the first row of the first column reserves the total negative output electrode 25, and the positive output electrode 2121 of the battery cell is electrically connected to the negative output electrode 2122 of the battery cell in the second row of the first column through a second electrical connector 23, and the positive output electrode 2121 of the battery cell in the second row of the first column is further electrically connected to the negative output electrode 2122 of the battery cell in the second row of the first column through a second electrical connector 23. The electrical connector 23 is electrically connected to the negative output pole 2122 of the battery cell located in the third row of the first column, and this connection method is used until it is connected to the battery cell in the last row of the first column. The positive output pole 2121 of the battery cell in the last row of the first column needs to be electrically connected to the negative output pole 2122 of the battery cell located in the last row of the third column through a first electrical connector 22, and then the multiple battery cells located between the third column and the second column are connected in series in turn through the alternating first electrical connectors 22 and second electrical connectors 23 until the total positive output pole 24 is reserved for the battery cells in the first row of the third column.

[0063] According to some embodiments of the present application, a positive output pole 2121 base and a negative output pole 2122 base are spaced apart on one side of the battery box 10 along the second direction. The positive output pole 2121 base is electrically connected to the total positive output pole 24 of the battery cell assembly 20, and the negative output pole 2122 base is electrically connected to the total negative output pole 25 of the battery cell assembly 20.

[0064] By arranging a positive output pole 2121 base and a negative output pole 2122 base on one side of the battery box 10 along the second direction, the positive output pole 2121 base and the negative output pole 2122 base are arranged at intervals along the first direction, and are respectively electrically connected to the total positive output pole 24 and the total negative output pole 25 of multiple battery cells, thereby facilitating electrical connection between the battery device 100 and the electrical equipment to supply power to the electrical equipment.

[0065] According to some embodiments of the present application, the battery box 10 includes a first box body 11 and a second box body 12, the first box body 11 covers the second box body 12 and defines a accommodating space between the first box body 11 and the second box body 12, the second box body 12 includes an end plate arranged along the second direction, and the base of the positive output pole 2121 and the base of the negative output pole 2122 are arranged on the end plate at intervals along the first direction.

[0066] As an example, the first box body 11 and the second box body 12 are buckled together, so that a closed accommodation space is formed inside the battery box 10 to accommodate the battery monomer assembly 20. The closed here means covered or closed, which can be sealed or unsealed.

[0067] As an example, the second box body 12 is a bottom plate, including two end plates arranged along its second direction and two side plates arranged along its first direction. The two side plates are fixedly connected to the two end plates respectively and are surrounded by a receiving groove. The first box body 11 is covered on the second box body 12 to define a receiving space for receiving the battery cell assembly 20 between the first box body 11 and the second box body 12.

[0068] The battery cell assembly 20 is accommodated in the accommodating space defined by the first box body 11 and the second box body 12, wherein an end plate is provided on one side of the second box body 12 along the second direction, and the base of the positive output pole 2121 and the base of the negative output pole 2122 are spaced apart from the end plate along the first direction, and are respectively used to electrically connect to the total positive output pole 24 and the total negative output pole 25 of multiple battery cells in the battery box 10 through electrical connectors, thereby facilitating electrical connection with electrical equipment.

[0069] According to some embodiments of the present application, see Figures 2 to 6 The present application provides a battery device 100, comprising: a battery box 10, a battery cell assembly 20 and a plurality of electrical connectors. The battery box 10 defines a storage space; the battery cell assembly 20 is accommodated in the storage space, the battery cell assembly 20 comprises a plurality of columns of battery cells 21, the plurality of columns of battery cells are arranged along a first direction, each column of battery cells comprises a plurality of rows of battery cells arranged along a second direction, the second direction intersects with the first direction; each battery cell is provided with a positive output pole 2121 and a negative output pole 2122 of opposite polarities, along the first direction, the positive output pole 2121 and the negative output pole 2122 of two adjacent battery cells in each row of battery cells are alternately arranged in sequence; along the second direction, the positive output pole 2121 and the negative output pole 2122 of two adjacent battery cells in each column of battery cells are staggered in sequence. The plurality of battery cells are connected in series through a plurality of electrical connectors, and the total positive output pole 24 and the total negative output pole 25 of the plurality of battery cells are located on the same side of the battery device 100 along the second direction. The number of columns of battery cells is m, which is an odd number and greater than 1, and the number of rows of battery cells is n, which is greater than 1. By adopting the above technical solution, it is possible to save the connection space required between the battery device 100 and the electrical equipment, and improve the connection efficiency of the battery device 100.

[0070] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A battery device, characterized in that: include: A battery box, wherein the battery box defines a receiving space; A battery cell assembly is accommodated in the accommodating space, the battery cell assembly includes a plurality of columns of battery cells, the plurality of columns of battery cells are arranged along a first direction, each column of battery cells includes a plurality of rows of battery cells arranged along a second direction, the second direction is arranged to intersect with the first direction, each of the battery cells is provided with a positive output electrode and a negative output electrode with opposite polarities, along the first direction, the positive output electrode and the negative output electrode of two adjacent battery cells in each row of battery cells are alternately arranged in sequence, along the second direction, the positive output electrode and the negative output electrode of two adjacent battery cells in each column of battery cells are staggered in sequence, the total positive output electrode of the plurality of battery cells is located at a battery cell in the last column of the first row of the battery cell assembly, and the total negative output electrode of the battery cells is located at a battery cell in the first column of the first row of the battery cell assembly; A plurality of electrical connectors, wherein the plurality of battery cells of the battery cell assembly are connected in series through the plurality of electrical connectors, and the total positive output pole and the total negative output pole of the plurality of battery cells are located on the same side of the battery device along the second direction, The number of columns of the battery cells is m, which is an odd number and greater than 1; the number of rows of the battery cells in each column is n, which is greater than 1.

2. The battery device according to claim 1, characterized in that: The plurality of electrical connectors include a plurality of first electrical connectors and a plurality of second electrical connectors, wherein the first electrical connectors are used to connect two battery cells arranged along the first direction in series, and the second electrical connectors are used to connect two battery cells arranged along the second direction in series, Wherein, the number of the first electrical connectors is not less than m+n-2.

3. The battery device according to claim 2, characterized in that: When m is greater than 3 and n is an odd number, A plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row through the first electrical connectors and the second electrical connectors which are alternately arranged; A battery cell in the last row of the second column is connected in series with a battery cell in the last row of the third column through a first electrical connector, and along the first direction, a plurality of battery cells in the last row are provided with a first electrical connector every two columns of battery cells starting from a battery cell in the last row of the third column; Along the first direction, a plurality of the battery cells located in the first row are provided with a first electrical connector every two columns of battery cells starting from a battery cell in the first row in the first column of battery cells; Along the second direction, the battery cells from the third column to the last column are electrically connected through the second electrical connectors.

4. The battery device according to claim 2, characterized in that: When m is equal to 3 and n is an odd number, The plurality of battery cells located in the first column and the second column are connected in series from the first row to the last row through the first electrical connectors and the second electrical connectors which are alternately arranged; One of the battery cells in the last row of the second column is connected in series with one of the battery cells in the last row of the third column through one of the first electrical connectors; The plurality of battery cells located in the third column are connected in series from the last row to the first row through a plurality of the second electrical connectors.

5. The battery device according to claim 2, characterized in that: When m is greater than 3 and n is an even number, A plurality of battery cells in a first column are connected in series through a plurality of the second electrical connectors, and a battery cell in the last row of the first column and a battery cell in the last row of the last column are connected in series through a first electrical connector; Along the first direction, a plurality of the battery cells located in the last row and between the last column and the second column are connected in series through a plurality of the first electrical connectors; Along the second direction, the battery cells in the second column are connected in series through a second electrical connector every two rows from the last row to the first row, and the battery cells in the last column are connected in series through a second electrical connector every other row.

6. The battery device according to claim 2, characterized in that: When m is equal to 3 and n is an even number, A plurality of battery cells in the first column are connected in series through a plurality of the second electrical connectors, and a battery cell in the last row of the first column is connected in series with a battery cell in the last row of the third column; The plurality of battery cells located between the third column and the second column are sequentially connected in series through the first electrical connectors and the second electrical connectors which are alternately arranged.

7. The battery device according to any one of claims 1 to 6, characterized in that: A positive output pole base and a negative output pole base are arranged at intervals on one side of the battery box along the second direction. The positive output pole base is electrically connected to the total positive output pole of the battery cell assembly, and the negative output pole base is electrically connected to the total negative output pole of the battery cell assembly.

8. The battery device according to claim 7, characterized in that: The battery box includes a first box body and a second box body, the first box body covers the second box body and defines the accommodating space between the first box body and the second box body, the second box body includes an end plate arranged along the second direction, and the positive output pole base and the negative output pole base are arranged at intervals on the end plate.

9. An electrical device, characterized in that: It comprises a battery device as described in any one of claims 1 to 8, wherein the battery device is used to supply power to the electrical device.

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