Battery and electric device

Abstract

A battery (1000) and an electric device. The battery (1000) comprises: at least one battery row (10), which comprises a plurality of battery cells (11) arranged in a first direction (F1); and a signal collection assembly (20), which comprises a collector (21) and a plurality of connectors (22), wherein the collector (21) comprises a plurality of signal lines (211) and a plurality of collection terminals (212), the collection terminals (212) are connected to the battery cells (11) and are used for collecting signals of the battery cells (11), the signal lines (211) are connected to the collection terminals (212) and the connectors (22), and each connector (22) is connected to at least one signal line (211) and is used for receiving the signals collected by the collection terminals (212).

Description

Batteries and electrical devices

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202420842272.5, filed on April 22, 2024, by Contemporary Amperex Technology Co., Ltd., the entire contents of which are incorporated herein by reference. Technical Field

[0003] This application relates to the field of battery technology, and more specifically, to a battery and an electrical device. Background Technology

[0004] In related technologies, the signal acquisition module of the battery uses a connector as the signal output port. The signal acquisition module has dense signal lines and many lines, which can easily lead to problems such as short circuits in the signal lines or large space occupation.

[0005] Summary of the Invention

[0006] This application provides a battery and a power-consuming device that can reduce the density of signal lines on the battery's signal acquisition components, thereby meeting the signal acquisition needs of batteries with a larger number of individual cells.

[0007] In a first aspect, embodiments of this application provide a battery, comprising: at least one battery pack, the battery pack including a plurality of battery cells arranged along a first direction; a signal acquisition component, the signal acquisition component including a collector and a plurality of connectors, the collector including a plurality of signal lines and a plurality of acquisition terminals, the acquisition terminals being connected to the battery cells and used to acquire signals from the battery cells, the signal lines connecting the acquisition terminals and the connectors, and each connector being connected to at least one signal line and used to receive signals acquired by the acquisition terminals.

[0008] In the above technical solution, by setting multiple connectors, each connector is connected to at least one signal line of the data collector and is used to receive the signal collected by the data collection terminal, the number of signal lines connected to each connector can be reduced, thereby reducing the density of signal lines on the data collector. This is beneficial for meeting the signal collection needs of batteries with a larger number of individual battery cells and also helps to reduce the space occupied by the data collector.

[0009] In some embodiments, at least two connectors are arranged spaced apart along a first direction.

[0010] In the above technical solution, the signal lines connected to the spaced-apart connectors can extend from the corresponding acquisition terminals to both ends in the first direction to the corresponding connectors. The signal lines connected to the spaced-apart connectors can be staggered in the first direction, so as not to interfere with each other and reduce the number of parallel signal lines, which is beneficial to make the signal lines connected by multiple connectors more dispersed.

[0011] In some embodiments, the connectors are located on both sides of the battery pack in the first direction.

[0012] In the above technical solution, the connector does not occupy the space on the side where the collector is located in the second direction of the battery pack, and the output line of the connector can be routed from both sides of the battery pack in the first direction. The routing of the line does not occupy the space on the side where the collector is located in the second direction of the battery pack, which helps to reduce the overall size of the battery in the second direction and reduce the overall space occupied.

[0013] In some embodiments, the collector is located on one side of the battery pack along a second direction, which is perpendicular to the first direction, and at least one connector is located on one side of the battery cell at the end of the battery pack along the second direction.

[0014] In the above technical solution, the connector is located near the end of the battery pack in the first direction. The connector does not occupy the space in the middle of the battery pack, reducing interference with other components in the middle. It also facilitates the output line of the connector to run along both sides of the battery pack in the first direction, reducing the space occupied by the line on the side of the battery pack where the collector is located in the second direction. This helps to reduce the overall size of the battery in the second direction and reduce the overall space occupied.

[0015] In some embodiments, among the plurality of acquisition terminals connected to the same connector, at least two acquisition terminals are located on opposite sides of the connector along a first direction.

[0016] In the above technical solution, the signal lines corresponding to the acquisition terminals on different sides of the connector can extend from the acquisition terminals in roughly opposite directions along the first direction to the same connector. The signal lines on both sides of the connector do not interfere with each other and are easy to be staggered in the first direction, thereby further reducing the number of parallel signal lines in the third direction and improving the dispersion of signal lines connected to the same connector.

[0017] In some embodiments, the acquisition terminal is located on one side of the battery pack along the second direction, and at least one acquisition terminal is opposite to the connected connector along the third direction and is located on both sides of the signal line along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other.

[0018] In the above technical solution, the signal line of the acquisition terminal opposite to the connector along the third direction can be extended to the connector in a general way along the third direction. It is not easy to interfere with the signal lines on both sides of the connector in the first direction, and further reduces the number of parallel signal lines on both sides of the connector in the third direction, thereby further improving the dispersion of signal lines.

[0019] In some embodiments, the acquisition terminal is located on one side of the battery pack along the second direction, and multiple connectors are located at the same end of the acquisition device along the first direction and arranged along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other.

[0020] In the above technical solution, multiple connectors are provided on the same end of the data acquisition unit, allowing multiple signal lines extending to the same end of the data acquisition unit to be connected to multiple connectors respectively, reducing the number of signal lines connected to each connector and lowering the density of signal lines. Furthermore, the multiple connectors located on the same end are arranged along a third direction, making it less likely for the signal lines between the multiple connectors to interfere with each other, and also less likely for the output lines of the multiple connectors to interfere with each other.

[0021] In some embodiments, the battery cell has an electrical connection portion on one side along the second direction and the electrical connection portion is connected in series or in parallel through electrical connectors. Multiple electrical connectors located on the same side of the signal line along the third direction are arranged at intervals along the first direction. At least one connector is disposed between two adjacent electrical connectors. The first direction, the second direction and the third direction are perpendicular to each other.

[0022] In the above technical solution, the data collector is less likely to cause positional interference with the electrical connection part and the electrical connector; and by placing the connector between two adjacent electrical connectors, the electrical connectors and the connector are staggered in the first direction, which makes it less likely to cause positional interference.

[0023] In some embodiments, the data acquisition unit includes a circuit board, on which multiple signal lines are integrated.

[0024] In the above technical solution, multiple signal lines are integrated on the circuit board, the positions of the multiple signal lines are fixed, and the size of the signal lines perpendicular to the extension direction is small, which helps to reduce the space occupied by the data collector. The small size, high wiring density and light weight help to meet the space arrangement requirements of the battery.

[0025] In some embodiments, the collector includes multiple wires, each wire forming a signal line.

[0026] In the above technical solution, the wire structure is simple and easy to connect and wire.

[0027] In some embodiments, the battery includes multiple battery packs, and each battery pack is provided with a corresponding signal acquisition component.

[0028] In the above technical solution, multiple signal acquisition components can acquire signals from individual battery cells in the corresponding battery pack without interfering with each other, which helps to reduce the number of signal lines in each signal acquisition component and reduce signal line density.

[0029] In some embodiments, the battery includes a plurality of battery bars arranged along a third direction perpendicular to the first direction, at least two battery bars being connected to the same signal acquisition component, and the number of connectors being greater than the number of connected battery bars.

[0030] In the above technical solution, the number of signal lines connected to each connector can also be reduced for batteries that include multiple battery packs, thus reducing the signal line density.

[0031] Secondly, embodiments of this application also provide an electrical device, including the battery described above, which is used to provide electrical energy to the electrical device. Attached Figure Description

[0032] Figure 1 is a schematic diagram of the vehicle provided in an embodiment of this application;

[0033] Figure 2 is a schematic diagram of the battery provided in an embodiment of this application;

[0034] Figure 3 is a schematic diagram of a single battery cell provided in an embodiment of this application;

[0035] Figures 4 and 5 are schematic diagrams of the battery pack provided in the first embodiment of this application;

[0036] Figure 6 is an enlarged structural diagram of point A circled in Figure 5;

[0037] Figures 7 and 8 are schematic diagrams of the battery pack provided in the second embodiment of this application;

[0038] Figures 9 and 10 are schematic diagrams of the battery pack provided in the third embodiment of this application;

[0039] Figures 11 and 12 are schematic diagrams of the battery pack provided in the fourth embodiment of this application.

[0040] Reference numerals: Vehicle 1; Battery 1000; Controller 2000; Motor 3000; Battery pack 100; Housing assembly 200; First part 210; Second part 220; Battery row 10; Battery cell 11; Housing 111; Electrical connection 112; Signal acquisition assembly 20; Acquisition device 21; Signal line 211; Acquisition terminal 212; Circuit board 213; Connector 22; Isolation plate 23; Electrical connector 30; First direction F1; Second direction F2; Third direction F3. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0043] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0046] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0047] In this application, "multiple" means two or more (including two).

[0048] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0049] The individual cells within a battery need to operate within specific temperature, current, and voltage ranges. Exceeding these ranges significantly impacts the stability and performance of the individual cells. Therefore, monitoring the temperature, current, and voltage of individual cells is crucial for battery monitoring.

[0050] In related technologies, the battery signal acquisition module includes a circuit board and signal acquisition terminals. The signal acquisition terminals are connected to the busbar. One end of the circuit board is designed with a connector. The signal acquisition terminals can acquire signals such as temperature, current and voltage. The signals are transmitted through the circuit board to the connector, and then output by the connector to the BMS battery management system to complete the sampling.

[0051] However, the signal lines between the acquisition terminals and the connectors are densely packed, especially near the connectors, resulting in a large number of lines. In embodiments including circuit boards, this makes it easy for the signal lines to short-circuit. In embodiments where wires connect the acquisition terminals and connectors, the large number of wires results in a large overall outer diameter, occupying a lot of space and hindering spatial arrangement. This makes it difficult to meet the signal acquisition requirements of batteries with a large number of individual cells.

[0052] In some related technologies, it is necessary to increase the width of the circuit board to accommodate the arrangement of more signal lines. This results in a large circuit board size, which can easily cause positional interference with the electrical connection parts of battery cells and other structures, making it unfavorable for the spatial arrangement of batteries.

[0053] Based on this, this application proposes a battery including at least one battery pack and a signal acquisition component. The battery pack includes a plurality of battery cells arranged along a first direction. The signal acquisition component includes a collector and a plurality of connectors. The collector includes a plurality of signal lines and a plurality of acquisition terminals. The acquisition terminals are connected to the battery cells and are used to acquire signals from the battery cells. The signal lines connect the acquisition terminals and the connectors. Each connector is connected to at least one signal line and is used to receive signals acquired by the acquisition terminals.

[0054] In the battery with the above-described structure, multiple connectors can be arranged at different locations on the collector and connected to different signal lines, so that the signal lines on the collector can be distributed in a dispersed manner, and the number of signal lines required for each connector can be reduced, making the signal line arrangement near the connector more sparse.

[0055] The battery disclosed in this application can be used in electrical devices that use batteries as a power source or in various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0056] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0057] Referring to Figure 1, which is a schematic diagram of a vehicle 1 provided in some embodiments of this application, vehicle 1 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery 1000 is installed inside vehicle 1, and the battery 1000 can be located at the bottom, front, or rear of vehicle 1. The battery 1000 can be used to power vehicle 1; for example, the battery 1000 can serve as the operating power source for vehicle 1. Vehicle 1 may also include a controller 2000 and a motor 3000. The controller 2000 is used to control the battery 1000 to supply power to the motor 3000, for example, to meet the power needs of vehicle 1 during starting, navigation, and driving.

[0058] In some embodiments of this application, the battery 1000 can not only serve as the operating power source for the vehicle 1, but also as the driving power source for the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0059] Referring to FIG2, which is an exploded view of a battery 1000 according to some embodiments of the present application, the battery 1000 includes a housing assembly 200 and a battery pack 100. The housing assembly 200 has a receiving cavity, and the battery pack 100 is received in the receiving cavity of the housing assembly 200.

[0060] The housing assembly 200 provides a receiving cavity for the individual battery cells 11, and the housing assembly 200 can adopt various structures. In some embodiments, the housing assembly 200 may include a first portion 210 and a second portion 220, which overlap each other, and together define a receiving cavity for accommodating the battery pack 100. The second portion 220 may be a hollow structure with one open end, and the first portion 210 may be a plate-like structure, with the first portion 210 covering the open side of the second portion 220 so that the first portion 210 and the second portion 220 together define the receiving cavity; the first portion 210 and the second portion 220 may also both be hollow structures with one open side, with the open side of the first portion 210 covering the open side of the second portion 220. Of course, the housing assembly 200 formed by the first portion 210 and the second portion 220 can be of various shapes, such as a cylinder, a cuboid, etc.

[0061] The battery cell 11 may include a housing 111, an electrode assembly, and an electrolyte. The housing 111 is used to house the electrode assembly and the electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell 11 mainly operates by the movement of metal ions between the positive and negative electrode. A terminal post or similar device may be provided on the housing 111 of the battery cell 11 to connect with a tab, serving as an electrical connection portion 112 of the battery cell 11.

[0062] In battery 1000, the battery pack 100 may include multiple battery cells 11, which can be connected in series, parallel, or in a mixed manner. A mixed connection means that multiple battery cells 11 are connected in both series and parallel configurations. Multiple battery cells 11 of battery 1000 can be directly connected in series, parallel, or in a mixed manner to form a battery pack 100, which is then housed within the housing assembly 200. Alternatively, battery 1000 can also consist of multiple battery cells 11 first connected in series, parallel, or in a mixed manner to form multiple battery packs 100, which are then connected in series, parallel, or in a mixed manner to form a whole and housed within the housing assembly 200. Battery 1000 may also include other structures; for example, it may include electrical connectors for electrical connection between multiple battery cells 11.

[0063] Each battery cell 11 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 11 can be cylindrical, flat, cuboid, or other shapes.

[0064] Hereinafter, with reference to the accompanying drawings, a battery 1000 according to an embodiment of the present application will be described.

[0065] Please refer to Figures 4-6. Figures 4 and 5 are schematic diagrams of the battery pack 100 provided in the first embodiment of this application; Figure 6 is an enlarged structural schematic diagram of the area circled at A in Figure 5. The battery 1000 includes: at least one battery pack 10 and a signal acquisition component 20.

[0066] The battery pack 10 includes a plurality of battery cells 11 arranged along a first direction F1. The signal acquisition assembly 20 includes a collector 21 and a plurality of connectors 22. The collector 21 includes a plurality of signal lines 211 and a plurality of acquisition terminals 212. The acquisition terminals 212 are connected to the battery cells 11 and are used to acquire signals from the battery cells 11. The signal lines 211 connect the acquisition terminals 212 and the connectors 22, and each connector 22 is connected to at least one signal line 211 and is used to receive signals acquired by the acquisition terminals 212.

[0067] The signal acquisition component 20 is used to acquire one or more signals such as temperature, current, and voltage of the battery cell 11.

[0068] The acquisition terminal 212 is used to connect to the battery cell 11 for signal acquisition, and the signal line 211 transmits the signal acquired by the acquisition terminal 212 to the connector 22. Depending on the signal being acquired, the acquisition device 21 can employ various signal acquisition structures. For example, the acquisition terminal 212 may include a metal plate, a temperature sensor, etc. The acquisition terminal 212 can be connected to the electrical connection part 112 of the battery cell 11 or to electrical connectors 30 such as a circuit breaker or busbar. Furthermore, the acquisition device 21 can employ various signal transmission structures, such as wire harnesses, PCBs (Printed Circuit Boards), FPCs (Flexible Printed Circuits), FFCs (Flexible Flat Cables), and FDCs (Flexible Die-cutting Circuits).

[0069] Connector 22 is used to receive signals collected by the data acquisition unit 21 and to connect the signal acquisition component 20 to external devices and transmit signals. For example, connector 22 can be connected to a battery management system (BMS) to output signals collected by the data acquisition unit 21 to the BMS, facilitating the management of the battery 1000 based on the signal acquisition results and improving the monitoring of the battery 1000's operating status. Alternatively, connector 22 can be connected to a power supply, BMS, or other power supply structures to transmit power to the data acquisition unit 21, enabling it to operate normally, such as providing power to a temperature sensor.

[0070] Signal lines 211 connect acquisition terminals 212 and connectors 22. Each connector 22 is connected to at least one signal line 211, allowing multiple connectors 22 to receive different types of signals acquired by acquisition terminals 212, or signals from different battery cells 11 acquired by acquisition terminals 212, etc. Multiple connectors 22 can be connected to the acquisition unit 21 via soldering or other methods to achieve electrical connection with the signal lines 211 of the acquisition unit 21, thereby enabling signal transmission between the corresponding signal lines 211.

[0071] The data acquisition unit 21 can be a single unit or comprise multiple separate parts. For example, the data acquisition unit 21 can be a single unit, with multiple connectors 22 connected to signal lines 211 at different locations within the unit; or, for another example, the data acquisition unit 21 can comprise multiple parts, each with signal lines 211 and acquisition terminals 212, and multiple connectors 22 can be connected to signal lines 211 on different parts respectively, and each part can be a wire harness or circuit board 213, etc.

[0072] In related technologies, the acquisition signals of all individual battery cells in a battery pack are output through the same connector. This requires all signal lines on the acquisition device to be electrically connected to a single connector, resulting in a dense arrangement of multiple signal lines, especially near the connector area. For example, in embodiments of wire harness-type acquisition devices, the diameter of the wire harness connected to the connector is relatively large, occupying a significant amount of space. Similarly, in embodiments of PCB-type acquisition devices, the signal lines are densely arranged on the circuit board, making manufacturing difficult and increasing the risk of short circuits. Alternatively, a wider circuit board may be required, affecting the space arrangement of the circuit board within the battery. This risk is significantly increased, especially for batteries containing a large number of individual cells, where the number of signal lines is even greater.

[0073] In the embodiments of this application, the signal acquisition component 20 is provided with multiple connectors 22, which are respectively connected to the acquisition unit 21, so that all the signal lines 211 of the acquisition unit 21 can be electrically connected to the multiple connectors 22 respectively. For example, in an embodiment including two connectors 22, half of all the signal lines 211 of the acquisition unit 21 can be connected to the first connector 22 and the other half can be connected to the second connector 22.

[0074] Since multiple connectors 22 are connected to the collector 21 respectively, the multiple connectors 22 can be set at different positions of the collector 21. The signal line 211 of the collector 21 can be extended from the battery cell 11 in different directions and along different paths to the corresponding connector 22 for connection. For example, the signal line 211 can be connected to the connector 22 that is closest to the connected battery cell 11.

[0075] Therefore, with a fixed number of signal lines 211, it is beneficial to reduce the extension path of the signal lines 211, reduce the parallel paths between multiple signal lines 211, reduce the number of parallel signal lines 211, and reduce the number of signal lines 211 required to connect each connector 22, thereby increasing the spacing between adjacent signal lines 211 and increasing the spacing of signal lines 211 near the connector 22, which is beneficial to reduce the space occupied by the collector 21. With a fixed installation space, the maximum number of signal lines 211 that can be arranged can be greatly increased, which is beneficial to meeting the signal acquisition needs of batteries 1000 with a large number of battery cells 11.

[0076] According to the battery 1000 of the present application embodiment, by setting multiple connectors 22, each connector 22 is connected to at least one signal line 211 of the collector 21 and is used to receive the signal collected by the collection terminal 212, the number of signal lines 211 connected to each connector 22 can be reduced, thereby reducing the density of signal lines 211 on the collector 21, which is beneficial to meeting the signal collection needs of batteries 1000 with a larger number of battery cells 11, and also beneficial to reducing the space occupied by the collector 21.

[0077] According to some embodiments of this application, as shown in Figures 4-6, at least two connectors 22 are arranged spaced apart along a first direction F1.

[0078] In some embodiments of the signal acquisition component 20 including two connectors 22, the two connectors 22 may be arranged spaced apart along the first direction F1; in some embodiments of the signal acquisition component 20 including three or more connectors 22, all connectors 22 may be arranged spaced apart along the first direction F1, or some connectors 22 may be arranged spaced apart along the first direction F1, and some connectors 22 may be located at the same position on the first direction F1 and arranged along a third direction F3, which is perpendicular to the first direction F1.

[0079] Multiple battery cells 11 of the battery pack 10 are arranged along the first direction F1. A data acquisition terminal 212 is connected to each battery cell 11, so that the multiple data acquisition terminals 212 are generally spaced apart along the first direction F1. At least two connectors 22 are spaced apart along the first direction F1, so that signal lines 211 connected to the spaced-apart connectors 22 can extend from the corresponding data acquisition terminal 212 to both ends in the first direction F1 to the corresponding connector 22. The signal lines 211 connected to the spaced-apart connectors 22 can be staggered in the first direction F1 to avoid mutual interference and reduce the number of parallel signal lines 211 in the third direction F3, which helps to make the signal lines 211 connected to the multiple connectors 22 more dispersed.

[0080] For example, in some specific embodiments, as shown in Figures 4-6, the signal acquisition component 20 includes two connectors 22, which are respectively located at both ends of the collector 21 along the first direction F1. The battery pack 10 includes four battery cells 11, which are connected in series through five electrical connectors 30. The signal acquisition component 20 includes five acquisition terminals 212, which are spaced apart along the first direction F1 between the two connectors 22 and respectively connected to the five electrical connectors 30. Taking the first direction F1 as the left-right direction and the third direction F3 as the front-back direction as an example, the three acquisition terminals 212 on the left are all connected to the connector 22 on the left via signal lines 211. These three signal lines 211 generally extend from the corresponding acquisition terminal 212 to the left connector 22 along the first direction F1, with a maximum of three signal lines 211 running parallel in the front-back direction. Similarly, the two acquisition terminals 212 on the right are all connected to the connector 22 on the right via signal lines 211. These two signal lines 211 generally extend from the corresponding acquisition terminal 212 to the right connector 22 along the first direction F1, with a maximum of two signal lines 211 running parallel in the front-back direction. The three signal lines 211 on the left and the two signal lines 211 on the right are completely staggered in the first direction F1, and will not intersect or run parallel in the third direction F3. Furthermore, the number of parallel signal lines 211 is significantly reduced compared to the total of five signal lines 211, allowing for a greater spacing between the parallel signal lines 211.

[0081] In some embodiments, connectors 22 are disposed on both sides of the battery pack 10 in the first direction F1. For example, two connectors 22 may be disposed on the left and right sides of the battery pack 10, respectively.

[0082] Therefore, connector 22 does not occupy the space on the side where collector 21 is located on the second direction F2 of battery pack 10, and the output line of connector 22 connecting to BMS can be routed from both sides of battery pack 10 on the first direction F1. The routed line does not occupy the space on the side where collector 21 is located on the second direction F2 of battery pack 10, which helps to reduce the overall size of battery 1000 in the second direction F2 and reduce the overall space occupied.

[0083] In some embodiments, as shown in Figures 4 and 5, the collector 21 is disposed on one side of the battery pack 10 along the second direction F2, the second direction F2 being perpendicular to the first direction F1, and at least one connector 22 is disposed on one side of the battery cell 11 at the end of the battery pack 10 along the second direction F2.

[0084] The battery cell 11 at the end of the battery pack 10 refers to the two battery cells 11 at both ends of the battery pack 10 along the first direction F1. At least one connector 22 is provided on one side of the battery cell 11 along the second direction F2, which means that the projection of the connector 22 along the second direction F2 at least partially coincides with the projection of the battery cell 11 along the second direction F2, that is, the connector 22 occupies the space on one side of the battery cell 11 along the second direction F2.

[0085] Therefore, the connector 22 is positioned near the end of the battery pack 10 in the first direction F1. The connector 22 does not occupy the space in the middle of the battery pack 10, reducing interference with other components in the middle. Furthermore, it facilitates the output line of the connector 22 to run from both sides of the battery pack 10 along the first direction F1, reducing the space occupied by the line on the side of the battery pack 10 along the second direction F2 where the collector 21 is located. This helps to reduce the overall size of the battery 1000 in the second direction F2 and reduce the overall space occupied.

[0086] In some embodiments, as shown in Figures 7 and 8, which are schematic diagrams of a battery pack 100 provided in the second embodiment of this application, at least two of the plurality of acquisition terminals 212 connected to the same connector 22 are located on opposite sides of the connector 22 along the first direction F1.

[0087] For example, in an embodiment where the connector 22 is connected to two acquisition terminals 212, the two acquisition terminals 212 are located on both sides of the connector 22 along the first direction F1; in an embodiment where the connector 22 is connected to three acquisition terminals 212, one acquisition terminal 212 can be provided on one side of the connector 22 along the first direction F1, and two acquisition terminals 212 can be provided on the other side. The acquisition terminals 212 on the same side can be arranged at intervals along the first direction F1.

[0088] Therefore, the connector 22 and the two ends of the collector 21 in the first direction F1 are spaced apart by a certain distance. The signal lines 211 corresponding to the acquisition terminals 212 on different sides of the connector 22 can be extended from the acquisition terminals 212 in the opposite direction in the first direction F1 to the same connector 22. The signal lines 211 on both sides of the connector 22 do not interfere with each other and are easy to be staggered in the first direction F1, thereby further reducing the number of parallel signal lines 211 in the third direction F3 and improving the dispersion of the signal lines 211 connected to the same connector 22.

[0089] In some embodiments, continuing to refer to Figures 7 and 8, the acquisition terminal 212 is disposed on one side of the battery pack 10 along the second direction F2, and at least one acquisition terminal 212 is opposite to the connected connector 22 along the third direction F3 and is respectively located on both sides of the signal line 211 along the third direction F3, with the first direction F1, the second direction F2 and the third direction F3 being perpendicular to each other.

[0090] The acquisition terminal 212, which is opposite to the connector 22 along the third direction F3, has a corresponding signal line 211 that can extend roughly along the third direction F3 to the connector 22. It is less likely to interfere with the signal lines 211 on both sides of the connector 22 in the first direction F1, and further reduces the number of signal lines 211 parallel to each other in the third direction F3, thereby further improving the dispersion of the signal lines 211.

[0091] Taking Figures 7 and 8 as examples, the three acquisition terminals 212 on the left are all connected to the connector 22 on the left via signal lines 211, and the two acquisition terminals 212 on the right are all connected to the connector 22 on the right via signal lines 211. The three acquisition terminals 212 on the left are referred to as the first acquisition terminal 212, the second acquisition terminal 212, and the third acquisition terminal 212 from left to right. The first acquisition terminal 212 is located to the left of the left connector 22, the second acquisition terminal 212 is opposite to the left connector 22 in the front-back direction, and the third acquisition terminal 212 is located to the right of the left connector 22. The signal line 211 corresponding to the first acquisition terminal 212 extends roughly to the right to the left connector 22; the signal line 211 corresponding to the second acquisition terminal 212 extends roughly along the front-back direction to the left connector 22; the signal line 211 corresponding to the third acquisition terminal 212 extends roughly to the left to the left connector 22. The three signal lines 211 are completely staggered in the left-right direction, and only one signal line 211 is set in the front-back direction at any position. There is no need for the signal lines 211 to be parallel in the front-back direction, and the distribution dispersion of the signal lines 211 is greatly improved.

[0092] Of course, in some embodiments where there are multiple connectors 22, some connectors 22 may be located at the end of the collector 21 along the first direction F1, some connectors 22 may be located between connected acquisition terminals 212, or some connectors 22 may be opposite to the connected acquisition terminals 212 along a third direction F3. By combining the above-mentioned various arrangement methods, the signal lines 211 are arranged more dispersedly.

[0093] For example, as shown in Figures 9 and 10, which are schematic diagrams of the battery pack 100 provided in the third embodiment of this application. The signal acquisition component 20 includes three connectors 22 and five signal acquisition terminals 212, which are, from left to right, the first connector 22, the second connector 22 and the third connector 22, and from left to right, the first acquisition terminal 212, the second acquisition terminal 212, the third acquisition terminal 212, the fourth acquisition terminal 212 and the fifth acquisition terminal 212. The first connector 22 is located to the right of the first acquisition terminal 212 and is opposite to the second acquisition terminal 212 in the front-back direction. The signal line 211 corresponding to the first acquisition terminal 212 extends to the right of the first connector 22, and the signal line 211 corresponding to the second acquisition terminal 212 extends to the first connector 22 in the front-back direction. The second connector 22 is located to the right of the third acquisition terminal 212 and is opposite to the fourth acquisition terminal 212 in the front-back direction. The signal line 211 corresponding to the third acquisition terminal 212 extends to the right of the second connector 22, and the signal line 211 corresponding to the fourth acquisition terminal 212 extends to the second connector 22 in the front-back direction. The third connector 22 is located to the right of the fifth acquisition terminal 212 and at the right end of the collector 21. The signal line 211 corresponding to the fifth acquisition terminal 212 extends to the right of the third connector 22. In the above embodiment, the five signal lines 211 are staggered in the left-right direction, reducing the number of parallel signal lines 211 in the front-back direction and making the signal lines 211 more dispersed.

[0094] In some embodiments of this application, as shown in Figures 11 and 12, which are schematic diagrams of the battery pack 100 provided in the fourth embodiment of this application, the acquisition terminal 212 is located on one side of the battery pack 10 along the second direction F2, and there are multiple connectors 22 located at the same end of the acquisition device 21 along the first direction F1 and arranged along the third direction F3. The first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

[0095] Multiple connectors 22 are provided on the same end of the data acquisition unit 21, so that multiple signal lines 211 extending to the same end of the data acquisition unit 21 can be connected to multiple connectors 22 respectively, reducing the number of signal lines 211 connected to each connector 22 and reducing the density of signal lines 211. In addition, the multiple connectors 22 located on the same end are arranged along the third direction F3, so that the signal lines 211 between the multiple connectors 22 are less likely to interfere with each other, and the output lines of the multiple connectors 22 are less likely to interfere with each other.

[0096] In some embodiments of this application, as shown in Figures 7 and 8, the battery cell 11 has an electrical connection portion 112 on one side along the second direction F2, and the electrical connection portion 112 is connected in series or in parallel through electrical connectors 30. Multiple electrical connectors 30 located on the same side of the signal line 211 along the third direction F3 are arranged at intervals along the first direction F1, and at least one connector 22 is disposed between two adjacent electrical connectors 30. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other.

[0097] Multiple electrical connectors 30 can be located on the same side of the data collector 21 along the third direction F3, or they can be located on opposite sides of the data collector 21 along the third direction F3, making the spatial arrangement more reasonable and reducing the likelihood of positional interference between the data collector 21 and the electrical connection part 112 and the electrical connectors 30. Furthermore, by placing the connector 22 between two adjacent electrical connectors 30, the electrical connectors 30 and the connector 22 are staggered in the first direction F1, further reducing the likelihood of positional interference.

[0098] Of course, as shown in Figures 9-12, for the connector 22 located at the end of the collector 21 along the first direction F1, the connector 22 can be arranged with the collector 21 along the first direction F1, or the connector 22 can be located on one side of the collector 21 along the third direction F3 and on the side of all electrical connectors 30 along the first direction F1. For example, as shown in Figures 11 and 12, two connectors 22 are provided at the same end of the collector 21 along the first direction F1, and the two connectors 22 are arranged along the third direction F3, with one connector 22 opposite to the collector 21 along the first direction F1, and the other connector 22 located on one side of the collector 21 along the third direction F3.

[0099] According to some embodiments of this application, as shown in Figures 4-6, the collector 21 includes a circuit board 213, and multiple signal lines 211 are integrated on the circuit board 213.

[0100] The circuit board 213 can be a PCB, FPC, FFC, or FDC, etc. The circuit board 213 can be a single-sided board (signal lines 211 are located on one side of the circuit board 213), a double-sided board (signal lines 211 are located on both sides of the circuit board 213), or a multilayer board (including multiple layers of stacked boards, each layer of which can be a single-sided or double-sided board). The signal lines 211 can be made of conductive materials such as copper.

[0101] Multiple signal lines 211 are integrated on the circuit board 213. The positions of the multiple signal lines 211 are fixed, and the size of the signal lines 211 perpendicular to the extension direction is small, which helps to reduce the space occupied by the collector 21. The small size, high wiring density and light weight help to meet the space arrangement requirements of the battery 1000.

[0102] According to some embodiments of this application, the collector 21 includes multiple wires, each wire forming a signal line 211.

[0103] The wire includes a conductor and an insulating portion that surrounds the conductor. The conductor, acting as a signal line 211, connects to the acquisition terminal 212 and the connector 22, simplifying the connection process. Multiple wires are insulated from each other by the insulating portion, allowing them to form a bundle and reducing space requirements.

[0104] According to some embodiments of this application, the battery 1000 includes a plurality of battery rows 10, and each battery row 10 is provided with a corresponding signal acquisition component 20. The plurality of signal acquisition components 20 can respectively acquire the signals of the battery cells 11 of the corresponding battery row 10, without interfering with each other, and it is beneficial to reduce the number of signal lines 211 of each signal acquisition component 20 and reduce the signal line density.

[0105] According to some embodiments of this application, the battery 1000 includes a plurality of battery rows 10 arranged along a third direction F3, the third direction F3 being perpendicular to the first direction F1, at least two battery rows 10 being connected to the same signal acquisition component 20, and the number of connectors 22 being greater than the number of connected battery rows 10.

[0106] For example, in an embodiment where the battery 1000 includes two battery packs 10, the signal acquisition component 20 may include three or more connectors 22, thereby reducing the number of signal lines 211 connected to each connector 22 and reducing the signal line density 211.

[0107] The electrical device according to the second aspect embodiment of this application includes the battery 1000 according to the first aspect embodiment of this application described above. The battery 1000 is used to provide electrical energy to the electrical device. Therefore, by using the battery 1000, the number of signal lines 211 connected to each connector 22 can be reduced, thereby reducing the density of signal lines 211 on the collector 21. This is beneficial for meeting the signal acquisition needs of batteries 1000 with a larger number of individual battery cells 11, and also helps to reduce the space occupied by the collector 21.

[0108] The following describes a battery 1000 according to some specific embodiments of the present application with reference to the accompanying drawings.

[0109] As shown in Figures 4-6, the battery 1000 according to the first embodiment of this application includes a battery pack 10, which includes four battery cells 11 stacked in a left-right direction. Each battery cell 11 has an electrical connection portion 112 at its upper end, and the electrical connection portions 112 are connected in series via electrical connectors 30. A signal acquisition assembly 20 is located on the upper side of the battery pack 10 and includes an isolation plate 23, a data acquisition unit 21, and two connectors 22. The isolation plate 23 is located between the data acquisition unit 21 and the battery pack 10. The data acquisition unit 21 includes a circuit board 213 and five acquisition terminals 212. The circuit board 213 has signal lines 211. The two connectors 22 are located at the left and right ends of the data acquisition unit 21, respectively. The three acquisition terminals 212 on the left side are connected to the left connector 22 via signal lines 211, and the two acquisition terminals 212 on the right side are connected to the right connector 22 via signal lines 211. The two connectors 22 are connected to the BMS via output lines to output the acquired signals.

[0110] In the above embodiment, the signal acquisition component 20 has two connectors 22, forming two signal output ports. The signal lines 211 converge to the two connectors 22. The number of signal lines 211 connected to each connector 22 is greatly reduced compared to the total number of signal lines 211. Furthermore, the number of parallel signal lines 211 in the front-back direction is at most three. Under the premise that the width of the circuit board 213 in the front-back direction meets the installation space requirements, the spacing between the parallel signal lines 211 is large enough to avoid the signal lines 211 being distributed too densely.

[0111] As shown in Figures 7 and 8, the battery 1000 according to the second embodiment of this application differs from the first embodiment in that two connectors 22 are located in the middle of the collector 21 along the left-right direction, the left connector 22 is opposite to the second collection terminal 212, and the right connector 22 is opposite to the fourth collection terminal 212.

[0112] In the above embodiment, the five signal lines 211 on the circuit board 213 can be staggered left and right, that is, the signal lines 211 do not need to be parallel front and back, which further improves the dispersion of the signal lines 211.

[0113] As shown in Figures 9 and 10, the battery 1000 according to the third embodiment of this application differs from the second embodiment in that it has three connectors 22. The left connector 22 is connected to the first acquisition terminal 212 and the second acquisition terminal 212 on the left side through a signal line 211. The middle connector 22 is connected to the third acquisition terminal 212 and the fourth acquisition terminal 212 through a signal line 211. The right connector 22 is connected to the fifth acquisition terminal 212 through a signal line 211.

[0114] In the above embodiment, the five signal lines 211 on the circuit board 213 can also be staggered left and right to make the signal lines 211 more dispersed.

[0115] As shown in Figures 11 and 12, the battery 1000 according to the fourth embodiment of this application differs from the first embodiment in that the left end of the collector 21 is provided with two connectors 22 arranged in a front-to-back pattern. One connector 22 is connected to the first and second collection terminals 212 via a signal line 211, and the other connector 22 is connected to the third collection terminal 212 via a signal line 211. The right end of the collector 21 is provided with two connectors 22 arranged in a front-to-back pattern. The two connectors 22 are respectively connected to the fourth and fifth collection terminals 212 via signal lines 211.

[0116] In the above embodiments, the number of signal lines 211 connected to each connector 22 is further reduced, and the dispersion of signal lines 211 near the connector 22 is further improved.

[0117] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0118] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery, wherein, include: At least one battery pack, the battery pack comprising a plurality of battery cells arranged along a first direction; A signal acquisition component includes a collector and multiple connectors. The collector includes multiple signal lines and multiple acquisition terminals. The acquisition terminals are connected to the battery cells and are used to acquire signals from the battery cells. The signal lines connect the acquisition terminals and the connectors. Each connector is connected to at least one of the signal lines and is used to receive signals acquired by the acquisition terminals.

2. The battery as claimed in claim 1, wherein, At least two of the connectors are arranged spaced apart along the first direction.

3. The battery as claimed in claim 2, wherein, The connectors are located on both sides of the battery pack in the first direction.

4. The battery as described in any one of claims 1-3, wherein, The collector is located on one side of the battery pack along a second direction, which is perpendicular to the first direction, and at least one connector is located on one side of the battery cell at the end of the battery pack along the second direction.

5. The battery as claimed in any one of claims 1-4, wherein, Of the plurality of acquisition terminals connected to the same connector, at least two acquisition terminals are located on opposite sides of the connector along the first direction.

6. The battery as claimed in any one of claims 1-5, wherein, The acquisition terminal is located on one side of the battery pack along the second direction. At least one acquisition terminal and the connected connector are opposite each other along the third direction and are respectively located on both sides of the signal line along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

7. The battery as claimed in any one of claims 1-6, wherein, The acquisition terminal is located on one side of the battery pack along the second direction. The connectors located at the same end of the acquisition device along the first direction are multiple and arranged along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

8. The battery as claimed in any one of claims 1-7, wherein, The battery cell has an electrical connection portion on one side along the second direction, and the electrical connection portion is connected in series or in parallel through electrical connectors. Multiple electrical connectors located on the same side of the signal line along the third direction are arranged at intervals along the first direction. At least one connector is disposed between two adjacent electrical connectors. The first direction, the second direction, and the third direction are perpendicular to each other.

9. The battery as claimed in any one of claims 1-8, wherein, The data acquisition device includes a circuit board, and multiple signal lines are integrated on the circuit board.

10. The battery as claimed in any one of claims 1-8, wherein, The data acquisition device includes multiple wires, each of which forms a signal line.

11. The battery as claimed in any one of claims 1-10, wherein, The battery includes multiple battery packs, and each battery pack is provided with a corresponding signal acquisition component.

12. The battery as claimed in any one of claims 1-10, wherein, The battery includes a plurality of battery rows arranged along a third direction perpendicular to the first direction, and at least two battery rows are connected to the same signal acquisition component. The number of connectors is greater than the number of connected battery rows.

13. An electrical appliance, wherein, Includes the battery as described in any one of claims 1-12, the battery being used to provide electrical energy to the electrical device.

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