Battery and electric device

Abstract

The utility model discloses a battery and an electric device. The battery comprises: at least one battery row, wherein the battery row comprises a plurality of battery cells arranged along a first direction; the signal collection assembly comprises a collector and a plurality of connectors, the collector comprises a plurality of signal lines and a plurality of collection terminals, the collection terminals are connected with the single batteries and used for collecting signals of the single batteries, and the signal lines are connected with the collection terminals and the connectors; and each connector is connected with at least one signal line and is used for receiving signals acquired by the acquisition terminals. According to the technical scheme, the connectors are arranged, each connector is connected with at least one signal line of the collector and used for receiving the signals collected by the collection terminals, the number of the signal lines connected with each connector can be reduced, and therefore the density degree of the signal lines on the collector is reduced, and the collection efficiency of the collector is improved. The signal acquisition requirement of a battery with a larger number of single batteries can be met, and the occupied space of the acquisition device can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery and an electrical device. Background Art

[0002] In the related art, the signal acquisition module of the battery uses a connector as a signal output port. The signal acquisition module has dense signal lines and many lines, which may easily cause problems such as signal line short circuit or occupy a large space. Utility Model Content

[0003] The embodiments of the utility model provide a battery and an electric device, which can reduce the density of signal lines on a signal acquisition component of the battery and meet the signal acquisition requirements of a battery with a larger number of battery cells.

[0004] In a first aspect, an embodiment of the utility model provides a battery, comprising: at least one battery row, the battery row comprising a plurality of battery cells arranged along a first direction; a signal acquisition component, the signal acquisition component comprising a collector and a plurality of connectors, the collector comprising a plurality of signal lines and a plurality of acquisition terminals, the acquisition terminals being connected to the battery cells and used to collect signals of the battery cells, the signal lines connecting the acquisition terminals and the connectors, each connector being connected to at least one signal line and used to receive signals collected by the acquisition terminals.

[0005] In the above technical solution, by setting up multiple connectors, each connector is connected to at least one signal line of the collector and is used to receive the signal collected by the collection terminal, the number of signal lines connected to each connector can be reduced, thereby reducing the density of signal lines on the collector, which is conducive to meeting the signal collection requirements of batteries with a larger number of battery cells and is conducive to reducing the occupied space of the collector.

[0006] In some embodiments, at least two connectors are arranged spaced apart along the first direction.

[0007] In the above technical solution, the signal lines respectively connected to the spaced-apart connectors can extend from the corresponding acquisition terminals to the two ends in the first direction to the corresponding connectors. The signal lines respectively connected to the spaced-apart connectors can be staggered in the first direction without interfering with each other, and the number of parallel signal lines is reduced, which is conducive to making the signal lines connected to multiple connectors more dispersed.

[0008] In some embodiments, the connectors are disposed on both sides of the battery row in the first direction.

[0009] 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 row, and the output lines of the connector can be routed from both sides of the battery row in the first direction, and the routing does not occupy the space on the side where the collector is located in the second direction of the battery row, which is beneficial to reducing the overall size of the battery in the second direction and reducing the overall occupied space.

[0010] In some embodiments, the collector is disposed on one side of the battery row along a second direction, the second direction is perpendicular to the first direction, and at least one connector is disposed on one side of a battery cell at an end of the battery row along the second direction.

[0011] In the above technical solution, the connector is arranged near the end of the battery row in the first direction, and the connector does not occupy the space in the middle of the battery row, reducing interference with other components in the middle; and it is convenient for the output wires of the connector to be routed from both sides of the battery row along the first direction, reducing the space occupied by the wiring on the side of the collector where the battery row is located along the second direction, which is beneficial to reducing the overall size of the battery in the second direction and reducing the overall occupied space.

[0012] In some embodiments, among the multiple collection terminals connected to the same connector, at least two collection terminals are respectively located on two sides of the connector along the first direction.

[0013] In the above technical solution, the signal lines corresponding to the acquisition terminals located on different sides of the connector can extend from the acquisition terminals generally in the opposite direction of 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 the signal lines connected to the same connector.

[0014] In some embodiments, the collection terminal is arranged on one side of the battery row along the second direction, at least one collection terminal is opposite to the connected connector along the third direction and is respectively located on both sides of the signal line along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0015] In the above technical solution, the corresponding signal line of the collection terminal opposite to the connector along the third direction can be roughly extended to the connector along the third direction, and is not easy to interfere with the signal lines on both sides of the connector in the first direction, and the number of signal lines parallel to the third direction of the signal lines on both sides of the connector in the first direction is further reduced, thereby further improving the dispersion of the signal lines.

[0016] In some embodiments, the collection terminal is disposed on one side of the battery row along the second direction, and there are multiple connectors at the same end of the collector along the first direction and arranged along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0017] In the above technical solution, multiple connectors are arranged at the same end of the collector, so that multiple signal lines extending to the same end of the collector can be connected to multiple connectors respectively, reducing the number of signal lines connected to each connector and reducing the density of signal lines. In addition, multiple connectors at the same end are arranged along the third direction, so that the signal lines between the multiple connectors are not easy to interfere with each other, and the output lines of the multiple connectors are not easy to interfere with each other.

[0018] In some embodiments, an electrical connection portion is provided on one side of the battery cell along the second direction and the electrical connection portion is connected in series or in parallel through an electrical connector, a plurality of electrical connectors located on the same side of the signal line along the third direction are arranged spaced apart along the first direction, at least one connector is provided between two adjacent electrical connectors, and the first direction, the second direction and the third direction are perpendicular to each other.

[0019] In the above technical solution, the collector is not likely to cause positional interference with the electrical connection part and the electrical connector; and by arranging the connector between two adjacent electrical connectors, the electrical connector and the connector are staggered in the first direction, which is not likely to cause positional interference.

[0020] In some embodiments, the collector includes a circuit board, and a plurality of signal lines are integrated on the circuit board.

[0021] In the above technical solution, multiple signal lines are integrated into 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 is conducive to reducing the space occupied by the collector. It has a small size, high wiring density and light weight, which is conducive to meeting the spatial layout requirements of the battery.

[0022] In some embodiments, the collector includes a plurality of wires, each wire forming a signal line.

[0023] In the above technical solution, the wire structure is simple and easy to connect and wire.

[0024] In some embodiments, the battery includes a plurality of battery rows, and a signal acquisition component is correspondingly provided for each battery row.

[0025] In the above technical solution, multiple signal acquisition components can respectively collect signals of battery cells of corresponding battery rows without interfering with each other, and are conducive to reducing the number of signal lines of each signal acquisition component and reducing the signal line density.

[0026] In some embodiments, the battery includes multiple battery rows arranged along a third direction, the third direction is perpendicular to the first direction, at least two battery rows are connected to the same signal acquisition component, and the number of connectors is greater than the number of connected battery rows.

[0027] In the above technical solution, for a battery including multiple battery rows, the number of signal lines connected to each connector can also be reduced, thereby reducing the signal line density.

[0028] In a second aspect, an embodiment of the utility model further provides an electrical device, comprising the above-mentioned battery, and the battery is used to provide electrical energy to the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a vehicle provided by an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of a battery provided in an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of a battery cell provided by an embodiment of the utility model;

[0032] Figure 4 and Figure 5 A schematic diagram of a battery pack provided in accordance with a first embodiment of the present invention;

[0033] Figure 6 for Figure 5 The middle circle shows the enlarged structural schematic diagram of A;

[0034] Figure 7 and Figure 8 A schematic diagram of a battery pack provided in accordance with a second embodiment of the present invention;

[0035] Fig. 9 and Fig.10 A schematic diagram of a battery pack provided in a third embodiment of the present utility model;

[0036] Fig.11 and Fig.12 A schematic diagram of a battery pack provided in accordance with a fourth embodiment of the present invention.

[0037] Reference numerals:

[0038] Vehicle 1; battery 1000; controller 2000; motor 3000;

[0039] Battery pack 100; box assembly 200; first part 210; second part 220;

[0040] Battery row 10; battery cell 11; housing 111; electrical connection portion 112;

[0041] Signal acquisition component 20; collector 21; signal line 211; acquisition terminal 212; circuit board 213; connector 22; isolation board 23;

[0042] Electrical connector 30;

[0043] The first direction F1; the second direction F2; the third direction F3. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] Unless otherwise defined, all technical and scientific terms used in the present invention have the same meanings as those generally understood by technicians in the technical field of the present invention; the terms used in the present invention and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0046] The reference to "embodiment" in the present invention means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places 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.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "attachment" 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The term "and / or" in the present invention is only a description of the association relationship of the associated objects, indicating that there can 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 the present invention generally indicates that the associated objects before and after are in an "or" relationship.

[0049] In the embodiments of the present invention, the same reference numerals represent 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 the present invention shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary and should not constitute any limitation on the present invention.

[0050] The term "plurality" used in the present invention refers to more than two (including two).

[0051] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries 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 military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0052] The battery cells in the battery need to be in a certain temperature range, current, and voltage during operation. If they are outside the required range, the stability and performance of the battery cells will be greatly affected. Therefore, detecting the temperature, current, and voltage of the battery cells is of great significance for battery monitoring.

[0053] In the related technology, the signal acquisition module of the battery includes a circuit board and a signal acquisition terminal. The signal acquisition terminal is connected to the bus. A connector is designed at one end of the circuit board. The signal acquisition terminal can collect signals such as temperature, current and voltage. The signal is transmitted to the connector through the circuit board, and then output by the connector to the BMS battery management system to complete the sampling.

[0054] However, the signal lines between the acquisition terminal and the connector are densely arranged, especially the signal lines near the connector are densely arranged, and there are many lines. In the embodiment including the circuit board, it is easy to short-circuit between the signal lines; in the embodiment where the acquisition terminal and the connector are connected by wires, there are many wires, the overall outer diameter is large, and the space occupied is large, which is not conducive to spatial arrangement. It is difficult to meet the signal acquisition requirements of batteries with a large number of battery cells.

[0055] In some related technologies, the width of the circuit board needs to be increased to accommodate the arrangement of more signal lines, which results in a large volume of the circuit board, which is prone to positional interference with structures such as the electrical connection parts of the battery cells, and is not conducive to the spatial arrangement of the battery.

[0056] Based on this, the present application proposes a battery, including at least one battery row and a signal acquisition component. The battery row 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 used to collect signals of the battery cells, the signal lines connect the acquisition terminals and the connectors, and each connector is connected to at least one signal line and used to receive the signal collected by the acquisition terminal.

[0057] In the battery of the above structure, by setting up multiple connectors, the multiple connectors can be arranged at different positions of the collector and connected to different signal lines, so that the signal lines on the collector can be dispersedly arranged, and the number of signal lines required to be connected to each connector can be reduced, so that the signal lines near the connector can be arranged more sparsely.

[0058] The battery disclosed in the embodiments of the present application can be used in an electrical device that uses the battery as a power source or in various energy storage systems that use the battery as an energy storage element. The electrical device can be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0059] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0060] Reference Figure 1 , Figure 1 A schematic diagram of a vehicle 1 provided for some embodiments of the present application. Vehicle 1 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 1000 is provided inside the vehicle 1, and the battery 1000 may be provided at the bottom, head or tail of the vehicle 1. The battery 1000 may be used to power the vehicle 1, for example, the battery 1000 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 2000 and a motor 3000, and the controller 2000 is used to control the battery 1000 to power the motor 3000, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0061] In some embodiments of the present application, the battery 1000 can not only serve as an operating power source for the vehicle 1 , but also serve as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0062] Reference Figure 2 , Figure 2This is an exploded view of a battery 1000 according to some embodiments of the present application. The battery 1000 includes a case assembly 200 and a battery pack 100 . The case assembly 200 has a receiving cavity, and the battery pack 100 is received in the receiving cavity of the case assembly 200 .

[0063] The box assembly 200 is used to provide a housing cavity for the battery cell 11, and the box assembly 200 can adopt a variety of structures. In some embodiments, the box assembly 200 may include a first part 210 and a second part 220, the first part 210 and the second part 220 cover each other, and the first part 210 and the second part 220 jointly define a housing cavity for accommodating the battery pack 100. The second part 220 may be a hollow structure with one end open, the first part 210 may be a plate-like structure, the first part 210 covers the open side of the second part 220, so that the first part 210 and the second part 220 jointly define a housing cavity; the first part 210 and the second part 220 may also be hollow structures with one side open, and the open side of the first part 210 covers the open side of the second part 220. Of course, the box assembly 200 formed by the first part 210 and the second part 220 may be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0064] The battery cell 11 may include a housing 111, an electrode assembly and an electrolyte, and the housing 111 is used to accommodate the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell 11 mainly works by the movement of metal ions between the positive electrode sheet and the negative electrode sheet. The housing 111 of the battery cell 11 may be provided with a pole or the like connected to the pole ear, as the electrical connection part 112 of the battery cell 11.

[0065] In the battery 1000, the battery pack 100 may include multiple battery cells 11, and the multiple battery cells 11 may be connected in series, in parallel, or in a mixed connection. The mixed connection means that the multiple battery cells 11 are both connected in series and in parallel. The multiple battery cells 11 of the battery 1000 can be directly connected in series, in parallel, or in a mixed connection to form a battery pack 100, and then the battery pack 100 is accommodated in the box assembly 200; of course, the battery 1000 can also be a multiple battery pack 100 in the form of multiple battery cells 11 connected in series, in parallel, or in a mixed connection, and the multiple battery packs 100 are then connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box assembly 200. The battery 1000 may also include other structures, for example, the battery 1000 may also include an electrical connector for realizing electrical connection between the multiple battery cells 11.

[0066] Each battery cell 11 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 11 may be cylindrical, flat, rectangular or in other shapes.

[0067] Hereinafter, a battery 1000 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0068] Please refer to Figure 4-Figure 6 As shown, Figure 4 and Figure 5 A schematic diagram of a battery pack 100 provided in a first embodiment of the utility model; Figure 6 for Figure 5 The enlarged structural diagram of A is circled in the middle. The battery 1000 includes: at least one battery row 10 and a signal acquisition component 20 .

[0069] The battery row 10 includes a plurality of battery cells 11 arranged along a first direction F1. The signal acquisition component 20 includes a collector 21 and a plurality of connectors 22, and 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 of 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.

[0070] The signal acquisition component 20 is used to acquire one or more signals of the temperature, current, voltage, etc. of the battery cell 11 .

[0071] The acquisition terminal 212 is used to connect with the battery cell 11 to collect signals, and the signal line 211 transmits the signal collected by the acquisition terminal 212 to the connector 22. According to the different signals collected, the collector 21 can adopt a variety of signal acquisition structures, for example, the acquisition terminal 212 can include a metal sheet, a temperature sensor, etc.; the acquisition terminal 212 can be connected to the electrical connection part 112 of the battery cell 11 or to the electrical connector 30 such as a bar sheet and a bus bar. In addition, the collector 21 can adopt a variety of signal transmission structures, such as wiring harness, PCB (Printed Circuit Board), FPC (Flexible Printed Circuit), FFC (Flexible Flat Cable), FDC (Flexible Die-cutting Circuit), etc.

[0072] The connector 22 is used to receive the signal collected by the collector 21, and realize the connection between the signal collection component 20 and the outside and the signal transmission. For example, the connector 22 can be connected to the BMS battery management system, so as to output the signal collected by the collector 21 to the BMS battery management system, so as to manage the battery 1000 according to the signal collection results and improve the monitoring of the working state of the battery 1000. For another example, the connector 22 can be connected to a power supply structure such as a power supply, a BMS, and transmit electric energy to the collector 21 so that the collector 21 can work normally, such as providing electric energy for a temperature sensor.

[0073] The signal line 211 connects the collection terminal 212 and the connector 22, and each connector 22 is connected to at least one signal line 211, so that the multiple connectors 22 can respectively receive different types of signals collected by the collection terminal 212, or respectively receive signals of different battery cells 11 collected by the collection terminal 212, etc. The multiple connectors 22 can be respectively connected to the collector 21 by welding or other means to achieve electrical connection with the signal line 211 of the collector 21, so as to achieve signal transmission between the corresponding signal lines 211.

[0074] The collector 21 may be a whole or include multiple separate parts. For example, the collector 21 is a whole, and multiple connectors 22 are connected to signal lines 211 at different positions of the whole; for another example, the collector 21 may include multiple parts, each of which is provided with a signal line 211 and a collection terminal 212, and multiple connectors 22 may be connected to signal lines 211 on different parts respectively, and each part may be a wiring harness or a circuit board 213, etc.

[0075] In the related art, the collected signals of all battery cells in the battery row are output through the same connector, and all signal lines on the collector need to be electrically connected to one connector, resulting in a close arrangement of multiple signal lines, especially the signal lines near the connector area are very densely arranged. For example, in the embodiment of the harness-type collector, the diameter of the harness connected to the connector is large and occupies a large space; for example, in the embodiment of the PCB-type collector, the signal lines are densely arranged on the circuit board, which is difficult to process and prone to the risk of short-circuiting the signal lines, or the circuit board needs to be wider, affecting the spatial arrangement of the circuit board in the battery. Especially for batteries with a large number of battery cells, the number of signal lines is greater, and the risk of the above problems is greatly increased.

[0076] In an embodiment of the present application, the signal acquisition component 20 is provided with a plurality of connectors 22, and the plurality of connectors 22 are respectively connected to the collector 21, so that all signal lines 211 of the collector 21 can be respectively electrically connected to the plurality of connectors 22. For example, in an embodiment including two connectors 22, half of all signal lines 211 of the collector 21 can be connected to the first connector 22, and the other half can be connected to the second connector 22.

[0077] Since multiple connectors 22 are respectively connected to the collector 21, multiple connectors 22 can be set at different positions of the collector 21. The signal line 211 of the collector 21 can extend 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.

[0078] Therefore, when the number of signal lines 211 is constant, 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 be connected to each connector 22, thereby increasing the spacing between adjacent signal lines 211 and increasing the spacing between signal lines 211 near the connector 22, which is beneficial to reducing the space occupied by the collector 21; when the installation space is constant, the maximum number of signal lines 211 that can be arranged can be greatly increased, which is beneficial to meeting the signal collection requirements of the battery 1000 with a large number of battery cells 11.

[0079] According to the battery 1000 of the embodiment of the utility model, by providing a plurality of 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, so that the number of signal lines 211 connected to each connector 22 can be reduced, thereby reducing the density of the signal lines 211 on the collector 21, which is conducive to meeting the signal collection requirements of the battery 1000 with a larger number of battery cells 11, and is conducive to reducing the occupied space of the collector 21.

[0080] According to some embodiments of the present invention, Figure 4-Figure 6 As shown, at least two connectors 22 are arranged at intervals along the first direction F1.

[0081] In some embodiments where the signal acquisition component 20 includes two connectors 22, the two connectors 22 may be spaced apart along the first direction F1; in some embodiments where the signal acquisition component 20 includes three or more connectors 22, all the connectors 22 may be spaced apart along the first direction F1, or some of the connectors 22 may be spaced apart along the first direction F1, and some of the connectors 22 may be located at the same position in the first direction F1 and arranged along a third direction F3, wherein the third direction F3 is perpendicular to the first direction F1.

[0082] The multiple battery cells 11 of the battery row 10 are arranged along the first direction F1, and the collection terminals 212 are connected to the battery cells 11, so that the multiple collection terminals 212 are arranged spaced apart substantially along the first direction F1. At least two connectors 22 are arranged spaced apart along the first direction F1, so that the signal lines 211 respectively connected to the spaced apart connectors 22 can extend from the corresponding collection terminals 212 to the corresponding connectors 22 at both ends in the first direction F1, and the signal lines 211 respectively connected to the spaced apart connectors 22 can be staggered in the first direction F1 without interfering with each other, and the number of parallel signal lines 211 in the third direction F3 is reduced, which is conducive to making the signal lines 211 connected to the multiple connectors 22 more dispersed.

[0083] For example, in some specific embodiments, Figure 4-Figure 6 As shown, the signal acquisition component 20 includes two connectors 22, and the two connectors 22 are respectively arranged at both ends of the collector 21 along the first direction F1. The battery row 10 includes four battery cells 11, and the four battery cells 11 are connected in series through five electrical connectors 30. The signal acquisition component 20 includes five acquisition terminals 212, and the five acquisition terminals 212 are arranged between the two connectors 22 at intervals along the first direction F1 and are 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 through the signal line 211, and the three signal lines 211 extend substantially along the first direction F1 from the corresponding acquisition terminals 212 to the left to the left connector 22, and there are at most three signal lines 211 in parallel in the front-back direction; the two acquisition terminals 212 on the right are all connected to the connector 22 on the right through the signal line 211, and the two signal lines 211 extend substantially along the first direction F1 from the corresponding acquisition terminals 212 to the right to the right connector 22, and there are at most two signal lines 211 in 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 there is no crossing or parallelism in the third direction F3, and the number of parallel signal lines 211 is greatly reduced compared with the total five signal lines 211, and the spacing between the parallel signal lines 211 is increased.

[0084] In some embodiments, the connectors 22 are disposed on both sides of the battery row 10 in the first direction F1. For example, two connectors 22 may be disposed on the left and right sides of the battery row 10, respectively.

[0085] Therefore, the connector 22 does not occupy the space on the side of the collector 21 in the second direction F2 of the battery row 10, and the output line connecting the connector 22 and the BMS can be routed on both sides of the battery row 10 in the first direction F1, and the routing does not occupy the space on the side of the collector 21 in the second direction F2 of the battery row 10, which is beneficial to reducing the overall size of the battery 1000 in the second direction F2 and reducing the overall occupied space.

[0086] In some embodiments, Figure 4 and Figure 5 As shown, the collector 21 is disposed on one side of the battery row 10 along the second direction F2 , which is 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 row 10 along the second direction F2 .

[0087] The battery cells 11 at the ends of the battery row 10 refer to the two battery cells 11 at both ends of the battery row 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 overlaps 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.

[0088] Therefore, the connector 22 is arranged near the end of the battery row 10 in the first direction F1, and the connector 22 does not occupy the space in the middle of the battery row 10, reducing interference with other components in the middle; and it is convenient for the output line of the connector 22 to be routed from both sides of the battery row 10 along the first direction F1, reducing the space occupied by the routing on the side of the collector 21 of the battery row 10 along the second direction F2, which is beneficial to reducing the overall size of the battery 1000 in the second direction F2 and reducing the overall occupied space.

[0089] In some embodiments, Figure 7 and Figure 8 As shown, Figure 7 and Figure 8 This is a schematic diagram of a battery pack 100 provided in the second embodiment of the present invention. Among the multiple collection terminals 212 connected to the same connector 22, at least two collection terminals 212 are respectively located on two sides of the connector 22 along the first direction F1.

[0090] For example, in an embodiment where the connector 22 is connected to two collection terminals 212, the two collection terminals 212 are respectively located on both sides of the connector 22 along the first direction F1; for example, in an embodiment where the connector 22 is connected to three collection terminals 212, one collection terminal 212 can be provided on one side of the connector 22 along the first direction F1, and two collection terminals 212 can be provided on the other side, and the collection terminals 212 provided on the same side can be spaced apart along the first direction F1.

[0091] Therefore, the connector 22 is arranged at a certain distance from both ends of the collector 21 in the first direction F1, and the signal lines 211 corresponding to the collection terminals 212 located on different sides of the connector 22 can extend from the collection terminals 212 to the same connector 22 roughly in the opposite directions in the first direction F1. 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.

[0092] In some embodiments, continue to refer to Figure 7 and Figure 8 As shown, the collection terminal 212 is arranged on one side of the battery row 10 along the second direction F2, at least one collection 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, and the first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

[0093] The signal lines 211 corresponding to the collection terminals 212 opposite to the connector 22 along the third direction F3 can generally extend along the third direction F3 to the connector 22, and are less likely to interfere with the signal lines 211 on both sides of the connector 22 in the first direction F1. The number of signal lines 211 parallel to the signal lines 211 on both sides of the connector 22 in the first direction F1 is further reduced, thereby further improving the dispersion of the signal lines 211.

[0094] by Figure 7 and Figure 8For example, the three acquisition terminals 212 on the left are all connected to the left connector 22 through the signal line 211, and the two acquisition terminals 212 on the right are all connected to the right connector 22 through the signal line 211. The three acquisition terminals 212 on the left are sequentially recorded as the first acquisition terminal 212, the second acquisition terminal 212 and the third acquisition terminal 212 from left to right, wherein the first acquisition terminal 212 is located on the left side of the left connector 22, the second acquisition terminal 212 is opposite to the left connector 22 along the front-to-back direction, and the third acquisition terminal 212 is located on the right side of the left connector 22. The signal line 211 corresponding to the first collection terminal 212 generally extends to the right to the left connector 22; the signal line 211 corresponding to the second collection terminal 212 generally extends to the left connector 22 along the front-to-back direction; the signal line 211 corresponding to the third collection terminal 212 generally extends to the left to the left connector 22. The three signal lines 211 are completely staggered in the left-to-right direction, and only one signal line 211 is set at any position in the front-to-back direction. The signal lines 211 do not need to be parallel in the front-to-back direction, and the distribution dispersion of the signal lines 211 is greatly improved.

[0095] Of course, in some embodiments where there are more connectors 22, some connectors 22 may be provided at the end of the collector 21 along the first direction F1, some connectors 22 may be located between connected collection terminals 212, or some connectors 22 may be opposite to the connected collection terminals 212 along the third direction F3. By combining the above-mentioned multiple arrangement modes, the signal lines 211 are arranged more dispersedly.

[0096] For example Fig. 9 and Fig.10 As shown, Fig. 9 and Fig.10Schematic diagram of a battery pack 100 provided in the third embodiment of the utility model. The signal acquisition component 20 includes three connectors 22 and five signal acquisition terminals 212, which are the first connector 22, the second connector 22 and the third connector 22 from left to right, and 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 from left to right. The first connector 22 is located on the right side of the first acquisition terminal 212 and is opposite to the second acquisition terminal 212 in the front-to-back direction. The signal line 211 corresponding to the first acquisition terminal 212 extends rightward to 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-to-back direction. The second connector 22 is located on the right side of the third acquisition terminal 212 and is opposite to the fourth acquisition terminal 212 in the front-to-back direction. The signal line 211 corresponding to the third acquisition terminal 212 extends rightward to 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-to-back direction. The third connector 22 is located on the right side of the fifth acquisition terminal 212 and is located at the right end of the collector 21. The signal line 211 corresponding to the fifth acquisition terminal 212 extends rightward to 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-to-back direction, so that the signal lines 211 are more dispersed.

[0097] In some embodiments of the present invention, Fig.11 and Fig.12 As shown, Fig.11 and Fig.12 This is a schematic diagram of a battery pack 100 provided in a fourth embodiment of the present invention. The collection terminal 212 is provided on one side of the battery row 10 along the second direction F2. There are multiple connectors 22 located at the same end of the collector 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.

[0098] A plurality of connectors 22 are arranged at the same end of the collector 21, so that a plurality of signal lines 211 extending to the same end of the collector 21 can be connected to the plurality of connectors 22 respectively, thereby reducing the number of signal lines 211 connected to each connector 22 and reducing the density of the signal lines 211. In addition, the plurality of connectors 22 at the same end are arranged along the third direction F3, so that the signal lines 211 between the plurality of connectors 22 are not likely to interfere with each other, and the output lines of the plurality of connectors 22 are not likely to interfere with each other.

[0099] In some embodiments of the present invention, Figure 7 and Figure 8As shown, the battery cell 11 is provided with 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 the electrical connection member 30. A plurality of electrical connections 30 located on the same side of the signal line 211 along the third direction F3 are arranged spaced apart along the first direction F1, and at least one connector 22 is provided between two adjacent electrical connections 30, and the first direction F1, the second direction F2 and the third direction F3 are perpendicular to each other.

[0100] The plurality of electrical connectors 30 may be located on the same side of the collector 21 along the third direction F3, or may be located on both sides of the collector 21 along the third direction F3, so that the spatial arrangement is more reasonable and the collector 21 is not likely to cause position interference with the electrical connection portion 112 and the electrical connector 30. In addition, by arranging the connector 22 between two adjacent electrical connectors 30, the electrical connector 30 and the connector 22 are staggered in the first direction F1, so that position interference is not likely to occur.

[0101] Of course, if Figure 9-12 As shown, for the connector 22 disposed 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 one side of all the electrical connectors 30 on that side along the first direction F1. Fig.11 and Fig.12 As shown, two connectors 22 are provided at the same end of the collector 21 along the first direction F1. The two connectors 22 are arranged along the third direction F3. One connector 22 is opposite to the collector 21 along the first direction F1, and the other connector 22 is located on one side of the collector 21 along the third direction F3.

[0102] According to some embodiments of the present invention, Figure 4-Figure 6 As shown, the collector 21 includes a circuit board 213 , and a plurality of signal lines 211 are integrated in the circuit board 213 .

[0103] The circuit board 213 may be a PCB, FPC, FFC or FDC, etc. The circuit board 213 may be a single-sided board (the signal line 211 is arranged on one side of the circuit board 213), a double-sided board (the signal line 211 is arranged on both sides of the circuit board 213) or a multi-layer board (including a multi-layer stacked board, each layer of which may be a single-sided board or a double-sided board). The signal line 211 may be made of a conductive material such as copper.

[0104] Multiple signal lines 211 are integrated into 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 is beneficial to reducing the space occupied by the collector 21. It has a small size, high wiring density and light weight, which is beneficial to meeting the space layout requirements of the battery 1000.

[0105] According to some embodiments of the present invention, the collector 21 includes a plurality of wires, each of which forms a signal line 211 .

[0106] The wire includes a conductor part and an insulating part wrapped outside the conductor part. The conductor part as a signal line 211 can connect the acquisition terminal 212 and the connector 22, and the connection is simple. Multiple wires are insulated by the insulating part, so that multiple wires can form a wire harness to reduce the occupied space.

[0107] According to some embodiments of the present invention, 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 collect signals of the battery cells 11 of the corresponding battery rows 10 without interfering with each other, and are conducive to reducing the number of signal lines 211 of each signal acquisition component 20 and reducing the density of the signal lines 211.

[0108] According to some embodiments of the present invention, the battery 1000 includes a plurality of battery rows 10 arranged along a third direction F3, the third direction F3 is perpendicular to the first direction F1, at least two battery rows 10 are connected to the same signal acquisition component 20, and the number of connectors 22 is greater than the number of connected battery rows 10.

[0109] For example, in an embodiment where the battery 1000 includes two battery rows 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 lowering the density of the signal lines 211 .

[0110] The electric device according to the second embodiment of the utility model includes the battery 1000 according to the first embodiment of the utility model, and the battery 1000 is used to provide electric energy for the electric device. Therefore, by adopting the above-mentioned battery 1000, the number of signal lines 211 connected to each connector 22 can be reduced, thereby reducing the density of the signal lines 211 on the collector 21, which is conducive to meeting the signal collection requirements of the battery 1000 with a larger number of battery cells 11, and is conducive to reducing the occupied space of the collector 21.

[0111] The battery 1000 according to some specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0112] The battery 1000 according to the first embodiment of the present invention is as follows Figure 4-Figure 6As shown, the battery 1000 includes a battery row 10, and the battery row 10 includes four battery cells 11 stacked in the left and right directions. The upper end of the battery cell 11 is provided with an electrical connection portion 112, and the electrical connection portion 112 is connected in series through an electrical connector 30. The signal acquisition component 20 is arranged on the upper side of the battery row 10, and includes an isolation plate 23, a collector 21 and two connectors 22. The isolation plate 23 is arranged between the collector 21 and the battery row 10. The collector 21 includes a circuit board 213 and five collection terminals 212. The circuit board 213 is provided with a signal line 211. Among them, the two connectors 22 are respectively arranged at the left and right ends of the collector 21. The three collection terminals 212 on the left are connected to the left end connector 22 through the signal line 211, and the two collection terminals 212 on the right are connected to the right end connector 22 through the signal line 211. The two connectors 22 are connected to the BMS through output lines to output the collected signals.

[0113] In the above embodiment, the signal acquisition component 20 has two connectors 22, forming two signal output ports, and the signal lines 211 are gathered to the two connectors 22. The number of signal lines 211 connected to each connector 22 is greatly reduced compared with the total number of signal lines 211, and the number of parallel signal lines 211 in the front-to-back direction is at most three. On the premise that the width of the circuit board 213 along the front-to-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.

[0114] The battery 1000 according to the second embodiment of the present invention is as follows Figure 7 and Figure 8 As shown, the difference between the second embodiment and the first embodiment is that two connectors 22 are arranged in the middle of the collector 21 along the left-right direction, the left connector 22 is opposite to the second collection terminal 212 front and back, and the right connector 22 is opposite to the fourth collection terminal 212 front and back.

[0115] 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.

[0116] The battery 1000 according to the third embodiment of the present invention is as follows Fig. 9 and Fig.10 As shown, the difference between the third embodiment and the second embodiment is that three connectors 22 are provided, the left connector 22 is connected to the first collection terminal 212 and the second collection terminal 212 on the left through the signal line 211, the middle connector 22 is connected to the third collection terminal 212 and the fourth collection terminal 212 through the signal line 211, and the right connector 22 is connected to the fifth collection terminal 212 through the signal line 211.

[0117] 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.

[0118] The battery 1000 according to the fourth embodiment of the present invention is as follows Fig.11 and Fig.12 As shown, the difference between the fourth embodiment and the first embodiment is that the left end of the collector 21 is provided with two connectors 22 arranged front to back, one of which is connected to the first collection terminal 212 and the second collection terminal 212 through a signal line 211, and the other connector 22 is connected to the third collection terminal 212 through a signal line 211; the right end of the collector 21 is provided with two connectors 22 arranged front to back, and the two connectors 22 are respectively connected to the fourth collection terminal 212 and the fifth collection terminal 212 through a signal line 211.

[0119] In the above embodiment, the number of signal lines 211 connected to each connector 22 is further reduced, and the dispersion of the signal lines 211 near the connector 22 is further improved.

[0120] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0121] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A battery, characterized in that: include: at least one battery row, the battery row comprising a plurality of battery cells arranged along a first direction; A signal acquisition component, the 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 of the connectors is connected to at least one of the signal lines and is used to receive signals acquired by the acquisition terminals.

2. The battery according to claim 1, characterized in that At least two of the connectors are arranged spaced apart along the first direction.

3. The battery according to claim 2, characterized in that The connectors are arranged on both sides of the battery row in the first direction.

4. The battery according to claim 1, characterized in that The collector is arranged on one side of the battery row along a second direction, the second direction is perpendicular to the first direction, and at least one connector is arranged on one side of the battery cell at the end of the battery row along the second direction.

5. The battery according to claim 1, characterized in that Among the multiple acquisition terminals connected to the same connector, at least two acquisition terminals are respectively located on two sides of the connector along the first direction.

6. The battery according to claim 1, characterized in that The acquisition terminal is arranged on one side of the battery row along the second direction, at least one of the acquisition terminals is opposite to the connected connector along the third direction and is respectively located on both sides of the signal line along the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

7. The battery according to claim 1, characterized in that The collecting terminal is arranged at one side of the battery row along the second direction. The connectors located at the same end of the collector along the first direction are multiple and arranged along the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

8. The battery according to claim 1, characterized in that An electrical connection portion is provided on one side of the battery cell along the second direction and the electrical connection portion is connected in series or in parallel through an electrical connector. A plurality of electrical connectors located on the same side of the signal line along the third direction are arranged spaced apart along the first direction. At least one connector is provided between two adjacent electrical connectors. The first direction, the second direction and the third direction are perpendicular to each other.

9. The battery according to any one of claims 1 to 8, characterized in that The collector includes a circuit board, and the plurality of signal lines are integrated on the circuit board.

10. The battery according to any one of claims 1 to 8, characterized in that The collector includes a plurality of wires, each of which forms one of the signal lines.

11. The battery according to any one of claims 1 to 8, characterized in that The battery includes a plurality of battery rows, and each battery row is provided with a corresponding signal acquisition component.

12. The battery according to any one of claims 1 to 8, characterized in that The battery includes a plurality of battery rows arranged along a third direction, the third direction being perpendicular to the first direction, at least two battery rows being connected to the same signal acquisition component, and the number of the connectors being greater than the number of the connected battery rows.

13. An electrical device, characterized in that: The invention comprises a battery as claimed in any one of claims 1 to 12, wherein the battery is used to provide electrical energy to the electrical device.

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