WO2025112673A1 - 一种电池包及用电设备 - Google Patents

一种电池包及用电设备 Download PDF

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Publication number
WO2025112673A1
WO2025112673A1 PCT/CN2024/112828 CN2024112828W WO2025112673A1 WO 2025112673 A1 WO2025112673 A1 WO 2025112673A1 CN 2024112828 W CN2024112828 W CN 2024112828W WO 2025112673 A1 WO2025112673 A1 WO 2025112673A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
battery
battery pack
pack according
battery module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/112828
Other languages
English (en)
French (fr)
Inventor
王福锦
邓长水
戢明浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiamen Hithium Energy Storage Technology Co Ltd
Original Assignee
Xiamen Hithium Energy Storage Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xiamen Hithium Energy Storage Technology Co Ltd filed Critical Xiamen Hithium Energy Storage Technology Co Ltd
Priority to AU2024388708A priority Critical patent/AU2024388708A1/en
Publication of WO2025112673A1 publication Critical patent/WO2025112673A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/482—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H01M50/287—Fixing of circuit boards to lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/298—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the wiring of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
    • H01M50/51—Connection only in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4278—Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the field of battery technology, and in particular to a battery pack and an electrical device.
  • the voltage and temperature of the battery pack and other parameters are usually transmitted to the battery management system (BMS) by means of wiring collection. Specifically, one end of the wiring is connected to the BMS interface, and the other end collects the voltage and temperature of the battery module.
  • BMS battery management system
  • the problem with the above-mentioned wiring harness wiring collection method is that not only the wiring diameter of some modules is large in space, which makes the wiring occupy too much internal space of the battery pack, resulting in low utilization of the internal space of the battery pack and increasing the manufacturing cost of the battery pack, but also the number of wiring arrangements is large, the wiring harness is complicated and the electrical safety is poor.
  • the present application discloses a battery pack and an electrical device to solve the problem in the related art that wiring collection leads to low internal space utilization of the battery pack and poor safety.
  • the present application discloses a battery pack, comprising: a battery management system; a plurality of battery modules, in which a plurality of battery cells are arranged in sequence along the length direction of each battery module; a circuit board, a circuit board is provided on the top of each battery module, and the circuit board connects the battery cells in the battery module to collect the operating data of each battery cell; a connector assembly, comprising a first interface and a first plug connected to each other, one of two adjacent circuit boards is provided with the first interface, and the other is provided with the first plug; the two adjacent circuit boards are connected to each other through the connector assembly, so that the plurality of circuit boards are connected in series in sequence to form a circuit board string; the circuit boards are connected in series to the battery management system to transmit the operating data of each battery cell in each battery module to the battery management system.
  • the present application discloses an electrical device including a battery pack.
  • the operating data of each battery cell in the corresponding battery module is first collected through the circuit board, and then the voltage data, temperature data and other operating data of each battery cell in each battery module are summarized through the circuit board and transmitted to the battery management system.
  • the method saves more space and has lower cost than the wiring harness.
  • the connection and fixation are more reliable and the space occupied is smaller, which is conducive to improving the space utilization inside the battery.
  • it can improve the safety of electricity use.
  • FIG1 is a plan view of a battery pack disclosed in the present application.
  • FIG2 is an enlarged view of point I of FIG1 of the present application.
  • FIG3 is an enlarged view of point II of FIG1 of the present application.
  • FIG4 is a structural diagram of a battery module disclosed in the present application.
  • FIG5 is an enlarged view of point III of FIG4 of the present application.
  • FIG6 is an enlarged view of point IV of FIG4 of the present application.
  • FIG7 is an enlarged view of point V in FIG4 of the present application.
  • FIG8 is a structural diagram of the end plate disclosed in the present application.
  • FIG. 9 is a structural diagram of the electrical equipment disclosed in this application.
  • 1000-battery pack 10-battery management system, 20-battery module, 20a-first battery module, 20b-second battery module, 21-end plate, 211-first circuit board fixing seat, 212-second circuit board fixing seat, 22-battery cell, 23-connector, 24-tie, 25-locating pin, 30-circuit board, 301-collection component, 302-reinforcement plate, 30a-first circuit board, 31-first rigid connection part, 311 -adapter, 3111-second interface, 3112-second plug, 32-second rigid connection part, 33-flexible connection part, 30b-second circuit board, 35-flexible bending part, 36-avoidance hole, 40-connector assembly, 41-first interface, 42-first plug, 50-wire, 60-circuit board support, 61-support part, 62-wing plate part, 621-limiting strip, 63-limiting part, 70-cover, 2000-electrical equipment.
  • the terms “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inner”, “outer”, “vertical”, “horizontal”, “lateral”, “longitudinal” and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
  • the terms “installed”, “set”, “provided with”, “connected”, and “connected” should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components.
  • installed can be a fixed connection, a detachable connection, or an integral structure
  • it can be a mechanical connection, or an electrical connection
  • it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components.
  • the specific meanings of the above terms in this application can be understood according to specific circumstances.
  • the voltage, temperature and other parameters of the battery pack are usually transmitted to the Battery Management System (BMS) through wiring collection.
  • BMS Battery Management System
  • the voltage and temperature collection end of the battery module is often far away from the BMS interface end, which requires the wiring to have sufficient length. This causes the wiring to occupy too much internal space of the battery pack, resulting in low internal space utilization of the battery pack.
  • the number of wiring arrangements is large, the wiring harness is complicated and the electrical safety is poor. For this reason, the technical solution of the present application is produced, which is explained below in conjunction with Figures 1 to 9.
  • the present application discloses a battery pack, including: a battery management system 10, a plurality of battery modules 20, a circuit board 30 and a connector assembly 40.
  • the battery management system (BMS) is also called the "brain" of the battery operating system, which sends and receives information from the battery and each external port, and after in-depth analysis and processing of the information, sends out execution commands.
  • the battery module 20 is an energy storage component in the battery pack.
  • Each battery module 20 is provided with a plurality of battery cells 22 in sequence along its length direction.
  • the ends of the battery module 20 along its length direction are provided with end plates 21, and the plurality of battery cells 22 are located between the two end plates 21.
  • the battery module 20 is provided with a connector 23 near the top of the circuit board 30.
  • the connector 23 is electrically connected to the positive electrode of one of the two adjacent battery cells 22 and the negative electrode of the other, so that the plurality of battery cells 22 are connected in series in sequence, thereby meeting the working requirements of the battery module 20.
  • the battery module 20 is also provided with a cable tie 24.
  • the cable tie 24 is arranged around the two end plates 21 and the plurality of battery cells 22 to achieve binding of the plurality of battery cells 22, so that the structure of the formed battery module 20 is stable.
  • a plurality of battery modules 20 can be provided in the battery pack, and the plurality of battery cells 22 can be connected in series.
  • the modules 20 may be arranged in sequence to form a module string, and the module string may extend along the length direction of the battery pack.
  • a plurality of circuit boards 30 may be provided, and the plurality of circuit boards 30 correspond to the plurality of battery modules 20 one by one, and a circuit board 30 is provided on the top of each battery module 20.
  • the circuit board 30 connects the battery cells 22 in the battery module 20 to collect the operating data of each battery cell 22.
  • the top of the battery module 20 is provided with a connector 23 shown in FIG.
  • the circuit board 30 is provided at the middle position of the top of the battery module 20, the connectors 23 are respectively provided on both sides of the width direction of the circuit board 30, and are arranged at intervals along the length direction of the circuit board 30, and a collection component 301 is electrically connected between the circuit board 30 and the connector 23, and the collection component 301 is connected to the connector 23 one by one, and the circuit board 30 collects the operating data of each battery cell 22 through the collection component 301, and the operating data may include at least one of voltage data, current data and temperature data.
  • the connector assembly 40 includes a first interface 41 and a first plug 42.
  • One of two adjacent circuit boards 30 is provided with the first interface 41, and the other is provided with the first plug 42; the two adjacent circuit boards 30 are connected to each other through the connector assembly 40, so that the multiple circuit boards 30 are sequentially connected in series to form a circuit board string.
  • the circuit board is connected in series with the battery management system 10 to transmit the working condition data such as the voltage data, current data and temperature data of each battery cell 22 in each battery module 20 to the battery management system 10.
  • This method of collecting data through the circuit board 30 saves more space than the wiring harness layout method, and the cost is lower than the wiring harness, the connection and fixation are more reliable, and the space occupied is smaller, which is conducive to improving the space utilization rate inside the battery. At the same time, compared with the complicated wiring harness layout, it can improve the safety of electricity use.
  • a circuit board 30 for connecting to a battery management system 10 is provided with a first rigid connection portion 31 at one end thereof facing the battery management system 10, and the first rigid connection portion 31 includes an adapter 311, and the adapter 311 is connected to the battery management system 10 via a wire 50.
  • the provision of the first rigid connection portion 31 can enhance the rigidity of the end position of the circuit board 30, so that the end of the circuit board 30 has better structural stability, thereby ensuring that its own structure is not easily deformed.
  • the adapter 311 includes a second interface 3111 and a second plug 3112 that are connected to each other, and one of the second interface 3111 and the second plug 3112 is arranged on the wire 50.
  • the connection and disconnection of the wire 50 and the first rigid connecting part 31 are facilitated through the detachable design between the wire 50 and the adapter 311.
  • a second rigid connection portion 32 is provided at one end of the circuit board 30 facing another adjacent circuit board 30, and the second rigid connection portion 32 is connected to another adjacent circuit board 30 through a connector assembly 40.
  • the provision of the second rigid connection portion 32 can also enhance the rigidity of the end position of the circuit board 30, so that the end of the circuit board 30 has better structural stability.
  • one of the end plates 21 on the battery module 20 that is arranged corresponding to the circuit board 30 with the second rigid connecting part 32 and is far away from the battery management system 10 is provided with a second circuit board fixing seat 212 connected to the second rigid connecting part 32 on the top.
  • the structure of the second circuit board fixing seat 212 can be the same as or different from the structure of the first circuit board fixing seat 211.
  • the second circuit board fixing seat 212 can also be connected to the end plate 21 by means of a latch or the like.
  • the second rigid connecting part 32 can be connected to the second circuit board fixing seat 212 by means of bolts or the like, so as to further ensure the connection stability of the circuit board 30.
  • the battery module 20 close to the battery management system 10 is the first battery module 20a
  • the circuit board 30 arranged on the first battery module 20a is the first circuit board 30a
  • the middle part of the first circuit board 30a is a flexible connection part 33
  • the two ends are respectively a first rigid connection part 31 and a second rigid connection part 32 connected to the flexible connection part 33
  • the flexible connection part 33 is connected to each battery cell 22 of the first battery module 20a, so that the first circuit board 30a can maintain the rigidity of the two end positions while ensuring flexibility, thereby ensuring the connection stability with the adjacent circuit boards 30 and wires 50.
  • One of the end plates 21 at both ends of the first battery module 20a is provided with a first circuit board fixing seat 211 to connect to the first rigid connection portion 31, and the other end is provided with a second circuit board fixing seat 212 to connect to the second rigid connection portion 32, thereby ensuring connection stability.
  • a flexible bending portion 35 is provided at one end of the circuit board 30 facing another adjacent circuit board 30, and the flexible bending portion 35 is suspended above the installation interval reserved between two adjacent battery modules 20, and the flexible bending portion 35 is connected to another adjacent circuit board 30 through a connector assembly 40.
  • the provision of the flexible bending portion 35 enables the circuit board 30 to have a flexible deformation portion, and the flexible bending portion 35 can adjust its own position and shape to adapt to the change in position or distance between two adjacent battery modules 20, thereby facilitating the connection of two adjacent battery modules 20.
  • the circuit board 30 can reserve a redundant portion through the flexible bending portion 35 to prevent external abnormalities such as shaking of the battery pack from causing the two interconnected circuit boards 30 to pull each other and fail to connect.
  • one of the end plates 21 of the battery module 20 corresponding to the circuit board 30 provided with the flexible bending portion 35 is spaced apart from the flexible bending portion 35 along the height direction of the battery module 20.
  • the end plate 21 can be prevented from squeezing and interfering with the flexible bending portion 35, and sufficient space can be reserved for the flexible bending portion 35 so that the flexible bending portion 35 can be fully deformed to adapt to the change in position or distance between two adjacent battery modules 20.
  • the battery module 20 is divided into a first battery module 20a and a second battery module 20b which are arranged in sequence along the length direction of the battery pack
  • the circuit board 30 is divided into a first circuit board 30a arranged on the top of the first battery module 20a, and a second circuit board 30b arranged on the second battery module 20b.
  • the second circuit board 30b includes a flexible connection portion 33 and a flexible bending portion 35 which are connected to each other.
  • the flexible connection portion 33 of the second circuit board 30b is connected to each battery cell 22 of the second battery module 20b, and the second circuit board 30b is connected to the first circuit board 30a through the flexible bending portion 35 and the connector assembly 40.
  • the battery pack in the present application can be formed by only two battery modules 20 to form a module string, that is, the first battery module 20a and the second battery module 20b are arranged in sequence to form a module string. Module string, thereby ensuring the capacity of the battery pack.
  • a first circuit board 30a is arranged on the top of the first battery module 20a, and the first circuit board 30a can ensure good connection stability with the first battery module 20a, the wire 50, and the second circuit board 30b by strengthening the rigidity at both ends, and a second circuit board 30b is arranged on the top of the second battery module 20b, and the flexibility of the second circuit board 30b is adjustable through the flexible bending part 35 to ensure the connection effectiveness between the second circuit board 30b and the first circuit board 30a, and the redundant part reserved by the flexible bending part 35 is used to prevent the second circuit board 30b and the first circuit board 30a from pulling each other and causing connection failure.
  • the module string may also include three or more battery modules 20, such as multiple first battery modules 20a and one second battery module 20b, or one first battery module 20a and multiple second battery modules 20b, etc., which will not be described in detail here.
  • the battery pack further includes a plurality of circuit board supports 60, and a circuit board support 60 is disposed on the top of each battery module 20.
  • the circuit board support 60 includes a supporting portion 61 and a wing portion 62 connected to each other; the supporting portion 61 is disposed between the circuit board 30 and the battery module 20, and the wing portion 62 is staggered from the circuit board 30.
  • the supporting portion 61 provides structural support for the circuit board 30, keeping the circuit board 30 stable and not easily deformed.
  • the support portion 61 is arranged between the flexible connection portion 33 of the circuit board 30 and the battery module 20, and a limiting bar 621 is provided on one side of the wing portion 62 close to the flexible bending portion 35 of the circuit board 30.
  • the limiting bar 621 extends toward the circuit board 30 to limit the circuit board 30 along the width direction of the battery pack. More specifically, for the second circuit board 30b, the wing portion 62 can pre-position the flexible bending portion 35 through the limiting bar 621 to facilitate its rapid connection to the first circuit board 30a.
  • a limiting portion 63 extending from the top of the battery module 20 to the bottom of the battery module 20 is provided at the wing portion 62 away from the edge of the support portion 61.
  • the limiting portion 63 can limit the battery cells 22 in the battery module 20 along the width direction of the battery pack.
  • the limiting portion 63 can cooperate with the cable tie 24 to make the position of the battery cell 22 more fixed, prevent the battery cell 22 from shaking abnormally and moving out of the original position, thereby ensuring the overall structural stability of the battery module 20.
  • a positioning pin 25 may be provided on the top of the battery module 20, and a positioning hole may be provided on the circuit board 30, and the positioning hole may be sleeved on the positioning pin 25.
  • the circuit board 30 may be prevented from sliding abnormally, especially from moving along the length direction of the battery pack.
  • a plurality of positioning pins 25 may be provided along the length direction of the battery pack, and a plurality of positioning holes may be provided on the circuit board 30, and the plurality of positioning holes may correspond one-to-one to the plurality of positioning pins 25, so as to improve the positioning effect.
  • the circuit board 30 is a flexible circuit board.
  • the overall material of the flexible circuit board is soft and easy to lay, and the wire diameter is small to save layout space.
  • the plurality of battery modules 20 and the plurality of circuit boards 30 are arranged in an array, and the plurality of circuit boards 30 in the same column are arranged in an array.
  • the circuit boards are connected in series to form a circuit board string.
  • Multiple circuit board strings are arranged side by side and spaced apart along the width of the battery pack.
  • the battery management system 10 connects multiple circuit board strings in parallel. In this way, the battery pack can store more energy while also being able to effectively collect operating condition data such as voltage data, current data, and temperature data.
  • the present application also discloses an electric device, which includes the above-mentioned battery pack 1000.
  • the electric device may be a battery car, an electric toy, an electric tool, an electric vehicle, a ship and a spacecraft, a mobile phone, a portable device, a PDA, a laptop computer, etc.
  • the battery pack 1000 may be installed in the vehicle to power the vehicle, which will not be described in detail here.

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Abstract

一种电池包(1000)及用电设备(2000)。电池包(1000)包括：电池管理系统(10)；多个电池模组(20)；电路板(30)；连接器组件(40)，多个电路板(30)依次串联并形成电路板串；电路板串连接电池管理系统(10)，以将各电池模组(20)中的各电池单体(22)的工况数据传输至电池管理系统(10)。

Description

一种电池包及用电设备
优先权信息
本申请请求2023年12月01日向中国国家知识产权局提交的、专利申请号为202311649170.8的专利申请的优先权和权益，并且通过参照将其全文并入此处。
技术领域
本申请涉及电池技术领域，尤其涉及一种电池包及用电设备。
背景技术
相关技术中，通常通过走线采集的方式，将电池包的电压和温度等参数传递至电池管理系统(Battery Management System，即BMS)中，具体来说，走线的一端连接BMS接口端，另一端采集电池模组的电压和温度。但目前在追求电池包高能量密度的趋势下，电池包内的模组数量不断增大，导致电池包的空间体积也不断增大，采用上述线束走线采集方式存在的问题是：不仅空间上部分模组走线线径较大，使得走线将过多的占用电池包的内部空间，造成电池包内部空间利用率较低，增加电池包的制造成本，而且走线布置的数目较多，线束繁杂电安全性差。
发明内容
本申请公开一种电池包及用电设备，以解决相关技术中走线采集导致电池包内部空间利用率较低，且安全性较差的问题。
为解决上述问题，第一方面，本申请公开一种电池包，包括：电池管理系统；多个电池模组，各电池模组中沿自身长度方向依次设置多个电池单体；电路板，各电池模组的顶部均设有一电路板，电路板连接电池模组中的各电池单体，以采集各电池单体的工况数据；连接器组件，包括相互连接的第一接口和第一插头，两相邻电路板的其中一者设有第一接口，另一者设有第一插头；两相邻电路板通过连接器组件互相连接，以使多个电路板依次串联并形成电路板串；电路板串连接电池管理系统，以将各电池模组中的各电池单体的工况数据传输至电池管理系统。
第二方面，本申请公开一种用电设备，包括电池包。
与现有技术相比，本申请的有益效果是：
本申请中首先通过电路板完成对所对应电池模组中各电池单体的工况数据采集，然后通过电路板串各电池模组中的各电池单体的电压数据、温度数据等工况数据进行汇总，并传输至所述电池管理系统。此种通过电路板进行采集的方式，较之线束布局 的方式更加节省空间，且成本相比线束低，连接固定更加可靠，并且占用的空间更小，以利于提高电池内部的空间利用率。同时较之繁杂的线束布局来说，可以提高用电安全性。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本申请公开的电池包的平面图；
图2为本申请图1的I处放大图；
图3为本申请图1的II处放大图；
图4为本申请公开的电池模组结构图；
图5为本申请图4的III处放大图；
图6为本申请图4的IV处放大图；
图7为本申请图4的V处放大图；
图8为本申请公开的端板结构图；
图9为本申请公开用电设备结构图。
附图标记说明：
1000-电池包、10-电池管理系统、20-电池模组、20a-第一电池模组、20b-第二电池模组、21-端板、211-第一电路板固定座、212-第二电路板固定座、22-电池单体、23-连接件、24-扎带、25-定位销、30-电路板、301-采集组件、302-加强板、30a-第一电路板、31-第一刚性连接部、311-转接器、3111-第二接口、3112-第二插头、32-第二刚性连接部、33-柔性连接部、30b-第二电路板、35-柔性折弯部、36-避让孔、40-连接器组件、41-第一接口、42-第一插头、50-导线、60-电路板支撑件、61-支撑部、62-翼板部、621-限位条、63-限位部、70-罩壳、2000-用电设备。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请中，术语“上”、“下”、“左”、“右”、“前”、“后”、“顶”、“底”、“内”、“外”、“竖直”、“水平”、“横向”、“纵向”等指示的方位或位置关系为基于附图所示的方位或位置关系。这些术语主要是为了更好地描述本申请及其实施例，并非用于限定所指示的装置、元件或组成部分必须具有特定方位，或以特定方位进行构造和操作。
并且，上述部分术语除了可以用于表示方位或位置关系以外，还可能用于表示其他含义，例如术语“上”在某些情况下也可能用于表示某种依附关系或连接关系。对于本领域普通技术人员而言，可以根据具体情况理解这些术语在本申请中的具体含义。
此外，术语“安装”、“设置”、“设有”、“连接”、“相连”应做广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
此外，术语“第二”、“第一”等主要是用于区分不同的装置、元件或组成部分(具体的种类和构造可能相同也可能不同)，并非用于表明或暗示所指示装置、元件或组成部分的相对重要性和数量。除非另有说明，“多个”的含义为两个或两个以上。
相关技术中，通常通过走线采集的方式，将电池包的电压和温度等参数传递至电池管理系统(Battery Management System，即BMS)中，但电池模组的电压和温度采集端往往是远离BMS接口端的，这就需要走线具有足够的长度，这便导致走线将过多的占用电池包的内部空间，造成电池包内部空间利用率较低，而且走线布置的数目较多，线束繁杂电安全性差，为此，遂产生本申请技术方案，下面结合图1～图9进行阐述。
请参考图1、图4和图5，本申请公开一种电池包，包括：电池管理系统10、多个电池模组20、电路板30和连接器组件40。其中，电池管理系统(Battery Management System，即BMS)又称之为电池操作系统的“脑部”，以收发电池和外部每个端口的信息，并在深入分析和加工处理信息后，传出执行工作命令。
如图4和图5所示，电池模组20为电池包中的储能部件，各电池模组20中沿自身长度方向依次设置多个电池单体22，同时电池模组20沿自身长度方向的两端的端部均设有端板21，多个电池单体22位于两端板21之间。电池模组20靠近电路板30的顶部设有连接件23，连接件23电连接于相邻两电池单体22的其中一者的正极，以及另一者的负极，以使多个电池单体22依次串联，从而满足电池模组20的工作。电池模组20还设有扎带24，通过扎带24围绕两端板21与多个电池单体22设置，实现对多个电池单体22的绑扎，以使所形成的电池模组20结构稳定。电池包中的电池模组20可以设置多个，且多个电池 模组20可以依次设置以形成模组串，模组串可以沿电池包的长度方向延伸。
电路板30可以设置多个，且多个电路板30与多个电池模组20一一对应，各电池模组20的顶部均设有一电路板30。电路板30连接电池模组20中的各电池单体22，以采集各电池单体22的工况数据。具体来说，电池模组20顶部的两侧均设有图5所示的连接件23，电路板30设于电池模组20顶部的中间位置，连接件23分别设置于电路板30的宽度方向的两侧，并沿电路板30的长度方向间隔排布，电路板30与连接件23之间电连接有采集组件301，采集组件301与连接件23一一对应的相连，电路板30通过采集组件301采集各电池单体22的工况数据，工况数据可以包括电压数据、电流数据和温度数据中的至少一者。
如图6所示，连接器组件40包括第一接口41和第一插头42。两相邻电路板30的其中一者设有第一接口41，另一者设有第一插头42；两相邻电路板30通过连接器组件40互相连接，以使多个电路板30依次串联并形成电路板串。
电路板串连接电池管理系统10，以将各电池模组20中的各电池单体22的电压数据、电流数据和温度数据等工况数据传输至电池管理系统10，此种通过电路板30进行采集的方式，较之线束布局的方式更加节省空间，且成本相比线束低，连接固定更加可靠，并且占用的空间更小，以利于提高电池内部的空间利用率。同时较之繁杂的线束布局来说，可以提高用电安全性。
可选地，如图4和图7所示，用于连接电池管理系统10的电路板30，其朝向电池管理系统10的一端设有第一刚性连接部31，第一刚性连接部31包括转接器311，转接器311通过导线50连接电池管理系统10。第一刚性连接部31的设置，可以使电路板30加强端部位置的刚性，使得电路板30的端部具有更好的结构稳定性，从而保证自身结构不易变形。
可选地，如图1和图3所示，转接器311包括相互连接的第二接口3111和第二插头3112，第二接口3111和第二插头3112的其中一者设于导线50，如此，通过导线50与转接器311之间的可拆卸设计，进而便于导线50与第一刚性连接部31的连接和拆分。
可选地，如图4和图7所示，与设有第一刚性连接部31的电路板30对应设置的电池模组20上的靠近电池管理系统10的端板21，设有连接第一刚性连接部31的第一电路板固定座211，第一电路板固定座211可以通过插销等方式连接在端板21，第一刚性连接部31可以通过螺栓拉结等方式连接第一电路板固定座211，进一步电路板30的保证连接稳定性。
可选地，如图4、图6和图7所示，电路板30朝向与之相邻的另一电路板30的一端设有第二刚性连接部32，第二刚性连接部32通过连接器组件40连接相邻的另一电路板30。第二刚性连接部32的设置同样可以加强电路板30端部位置的刚性，使得电路板30的端部具有更好的结构稳定性。
可选地，如图6所示，与设有第二刚性连接部32的电路板30对应设置的电池模组20上的远离电池管理系统10的其中一个端板21，其顶部设有连接第二刚性连接部32的第二电路板固定座212，第二电路板固定座212的结构与第一电路板固定座211结构可以相同，也可以不同，第二电路板固定座212也可以通过插销等方式连接在端板21，第二刚性连接部32可以通过螺栓拉结等方式连接第二电路板固定座212，进一步电路板30的保证连接稳定性。
更为具体的，靠近电池管理系统10的电池模组20为第一电池模组20a，第一电池模组20a上设置的电路板30为第一电路板30a，第一电路板30a的中间部分为柔性连接部33，两端分别为连接柔性连接部33的第一刚性连接部31和第二刚性连接部32，其中，柔性连接部33与第一电池模组20a的各电池单体22相连接，这样第一电路板30a可以在保证柔性的同时保持两端位置的刚性，进而保证和相邻电路板30、导线50的连接稳定性。
而第一电池模组20a两端的端板21的其中一者，则设置第一电路板固定座211以连接第一刚性连接部31，另一者则设置第二电路板固定座212以连接第二刚性连接部32，进而保证连接稳定性。
可选地，电路板30朝向与之相邻的另一电路板30的一端设有柔性折弯部35，柔性折弯部35悬置于两相邻电池模组20之间预留的安装间隔的上方，且柔性折弯部35通过连接器组件40连接相邻的另一电路板30。柔性折弯部35的设置使得电路板30具有柔性变形部分，柔性折弯部35可以通过自身位置和形状调整，以适配两相邻电池模组20之间位置或距离的变化，从而方便两相邻电池模组20的相连。同时电路板30可通过柔性折弯部35预留冗余部分，防止电池包晃动等外界异常导致两相互连接的电路板30之间相互拉拽而连接失效。
可选地，如图4和图6所示，与设有柔性折弯部35的电路板30对应设置的电池模组20的其中一个端板21，其与柔性折弯部35沿电池模组20的高度方向间隔设置。这样可以防止端板21对柔性折弯部35的挤压和干涉，并使柔性折弯部35预留出充足空间，以便于柔性折弯部35充分形变，以适配两相邻电池模组20之间位置或距离的变化。
更为具体的，电池模组20分为沿电池包长度方向依次设置的第一电池模组20a和第二电池模组20b，电路板30分为设于第一电池模组20a的顶部的第一电路板30a，以及设于第二电池模组20b的第二电路板30b，第二电路板30b包括相互连接的柔性连接部33和柔性折弯部35，第二电路板30b的柔性连接部33与第二电池模组20b的各电池单体22相连接，且第二电路板30b通过柔性折弯部35、连接器组件40连接第一电路板30a。
进一步地，如上述，本申请中的电池包可以仅由两个电池模组20形成模组串，即上述的第一电池模组20a和第二电池模组20b依次设置形成模组串。电池包可以并排设置多串 模组串，进而保证电池包的容量。其中，第一电池模组20a的顶部设置第一电路板30a，第一电路板30a通过两端刚性加强可与第一电池模组20a之间、与导线50之间，以及与第二电路板30b之间保证较好的连接稳定性，而第二电池模组20b的顶部设置第二电路板30b，第二电路板30b通过柔性折弯部35的柔性可调，以保证第二电路板30b和第一电路板30a之间的连接有效性，并通过柔性折弯部35预留的冗余部分，防止第二电路板30b和第一电路板30a相互拉拽导致连接失效。
可选地，模组串也可包括三个及以上的电池模组20，比如多个第一电池模组20a和一个第二电池模组20b，或者一个第一电池模组20a和多个第二电池模组20b等，此处不再详述。
可选地，如图4～图6所示，电池包还包括多个电路板支撑件60，各电池模组20的顶部均设置一电路板支撑件60。电路板支撑件60包括相互连接的支撑部61和翼板部62；支撑部61设于电路板30和电池模组20之间，翼板部62与电路板30错开。其中，支撑部61为电路板30提供结构支撑，保持电路板30结构稳定不易形变。
可选地，如图4～图6所示，支撑部61设于电路板30的柔性连接部33和电池模组20之间，其翼板部62靠近电路板30的柔性折弯部35的一侧设有限位条621，限位条621朝向电路板30延伸，以对电路板30进行沿电池包的宽度方向的限位，更为具体地，对于第二电路板30b来说，翼板部62可通过限位条621实现对柔性折弯部35的预定位，便于其快速地连接第一电路板30a。
可选地，翼板部62远离支撑部61边缘处，设有自电池模组20的顶部向电池模组20的底部延伸形成的限位部63，限位部63可对电池模组20中的电池单体22进行沿电池包的宽度方向的限位，限位部63可以配合扎带24使电池单体22的位置更加固定，防止电池单体22异常晃动脱离原位置，进而保证电池模组20的整体结构稳定。
可选地，如图5所示，电池模组20的顶部可以设置定位销25，电路板30设有定位孔，定位孔套设于定位销25。如此，可以防止电路板30异常滑动，尤其是防止电路板30沿电池包长度方向的窜动。进一步地，定位销25可以沿电池包长度方向设置多个，电路板30上的定位孔设置多个，且多个定位孔与多个定位销25一一对应，以提高定位效果。
可选地，如图5所示，电路板30设有多个避让孔36，多个避让孔36与电池模组20中多个电池单体22上所设置的多个防爆阀一一对应，以在电池单体22需要泄压时，留出防爆阀所需的泄压空间。
可选地，电路板30为柔性电路板，柔性电路板整体材质柔软易于铺设，且线径较小可节省布局空间。
可选地，多个电池模组20、多个电路板30均阵列设置，同一列中的多个电路板30依 次串联并形成电路板串，电路板串沿电池包宽度方向并排间隔设置多个，电池管理系统10并联多个电路板串，这样电池包储能量更大的同时，也能够实现对电压数据、电流数据和温度数据等工况数据的有效采集。
可选地，电池包还可以包括罩壳70，电池管理系统10、电池模组20和电路板30均设于罩壳70中，罩壳70为电池包的相关部件提供安装基础和遮罩保护。
本申请还公开一种用电设备，用电设备包括上述的电池包1000，用电设备可以是电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器、手机、便携式设备、掌上电脑、笔记本电脑等。以用电设备2000为图9所示的车辆为例，电池包1000可以安装在车辆中，以便为车辆供电，此处不再详述。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (20)

  1. 一种电池包，其中，包括：
    电池管理系统(10)；
    多个电池模组(20)，各所述电池模组(20)中沿自身长度方向依次设置多个电池单体(22)；
    电路板(30)，各所述电池模组(20)的顶部均设有一所述电路板(30)，所述电路板(30)连接所述电池模组(20)中的各所述电池单体(22)，以采集各所述电池单体(22)的工况数据；
    连接器组件(40)，包括相互连接的第一接口(41)和第一插头(42)，两相邻所述电路板(30)的其中一者设有所述第一接口(41)，另一者设有所述第一插头(42)；两相邻所述电路板(30)通过所述连接器组件(40)互相连接，以使多个电路板(30)依次串联并形成电路板串；
    所述电路板串连接所述电池管理系统(10)，以将各所述电池模组(20)中的各所述电池单体(22)的工况数据传输至所述电池管理系统(10)。
  2. 根据权利要求1所述的电池包，其中，电池模组(20)靠近所述电路板的顶部设有连接件(23)，所述连接件(23)电连接于相邻两电池单体(22)的其中一者的正极，以及另一者的负极，以使多个所述电池单体(22)依次串联；
    所述电路板(30)设于所述电池模组(20)顶部的中间位置，所述连接件(23)分别设置于所述电路板(30)的宽度方向的两侧，并沿所述电路板(30)的长度方向间隔排布，所述电路板(30)与所述连接件(23)之间电连接有采集组件，所述采集组件(301)与连接件(23)一一对应的相连，
    所述电路板(30)通过所述采集组件(301)采集各所述电池单体(22)的工况数据。
  3. 根据权利要求1所述的电池包，其中，所述工况数据包括电压数据、电流数据和温度数据中的至少一者。
  4. 根据权利要求1所述的电池包，其中，每个所述电池模组(20)均包括端板(21)和扎带(24)，
    所述电池模组(20)沿自身长度方向的两端的端部均设有所述端板(21)；多个所述电池单体(22)位于两所述端板(21)之间，所述扎带(24)围绕两所述端板(21)与多个所述电池单体(22)设置。
  5. 根据权利要求4所述的电池包，其中，用于连接所述电池管理系统(10)的所述电路板(30)，其朝向所述电池管理系统(10)的一端设有第一刚性连接部(31)，
    所述第一刚性连接部(31)包括转接器(311)，所述转接器(311)通过导线(50) 连接所述电池管理系统(10)。
  6. 根据权利要求5所述的电池包，其中，所述转接器(311)包括相互连接的第二接口(3111)和第二插头(3112)，
    所述第二接口(3111)和所述第二插头(3112)的其中一者设于所述导线(50)。
  7. 根据权利要求5所述的电池包，其中，与设有所述第一刚性连接部(31)的所述电路板(30)对应设置的所述电池模组(20)上的靠近所述电池管理系统(10)的端板(21)，设有连接所述第一刚性连接部(31)的第一电路板固定座(211)。
  8. 根据权利要求5所述的电池包，其中，所述电路板(30)朝向与之相邻的另一所述电路板(30)的一端设有第二刚性连接部(32)，所述第二刚性连接部(32)通过所述连接器组件(40)连接相邻的另一所述电路板(30)。
  9. 根据权利要求8所述的电池包，其中，与设有所述第二刚性连接部(32)的所述电路板(30)对应设置的所述电池模组(20)上的远离所述电池管理系统(10)的其中一个端板(21)，其顶部设有连接所述第二刚性连接部(32)的第二电路板固定座(212)。
  10. 根据权利要求5所述的电池包，其中，所述电路板(30)朝向与之相邻的另一所述电路板(30)的一端设有柔性折弯部(35)，
    所述柔性折弯部(35)悬置于两相邻所述电池模组(20)之间预留的安装间隔的上方，且所述柔性折弯部(35)通过所述连接器组件(40)连接所述相邻的另一所述电路板(30)。
  11. 根据权利要求10所述的电池包，其中，与设有所述柔性折弯部(35)的所述电路板(30)对应设置的所述电池模组(20)的其中一个端板(21)，其与所述柔性折弯部(35)沿所述电池模组(20)的高度方向间隔设置。
  12. 根据权利要求1所述的电池包，其中，还包括多个电路板支撑件(60)，各所述电池模组(20)的顶部均设置一所述电路板支撑件(60)；
    所述电路板支撑件(60)包括相互连接的支撑部(61)和翼板部(62)；
    所述支撑部(61)设于所述电路板(30)和所述电池模组(20)之间，所述翼板部(62)与所述电路板(30)错开。
  13. 根据权利要求12所述的电池包，其中，所述支撑部(61)设于所述电路板(30)和所述电池模组(20)之间，所述翼板部(62)靠近所述电路板(30)的一侧设有限位条(621)，所述限位条(621)朝向所述电路板(30)延伸，以对所述电路板(30)进行沿所述电池模组(20)的宽度方向的限位。
  14. 根据权利要求13所述的电池包，其中，所述翼板部(62)远离所述支撑部(61)边缘处，设有自所述电池模组(20)的顶部向所述电池模组(20)的底部延伸形成的限位部(63)，
    所述限位部(63)可对所述电池模组(20)中的电池单体(22)进行沿所述电池包的宽度方向的限位。
  15. 根据权利要求1所述的电池包，其中，所述电池模组(20)的靠近所述电路板的顶部设置定位销(25)，
    所述电路板(30)设有定位孔，所述定位孔套设于所述定位销(25)。
  16. 根据权利要求1所述的电池包，其中，所述电路板(30)设有多个避让孔(36)，多个所述避让孔(36)与所述电池模组(20)中多个电池单体(22)上所设置的多个防爆阀一一对应。
  17. 根据权利要求1所述的电池包，其中，所述电路板(30)为柔性电路板。
  18. 根据权利要求1所述的电池包，其中，多个所述电池模组(20)、多个所述电路板(30)均阵列设置，
    同一列中的多个所述电路板(30)依次串联并形成电路板串，所述电路板串沿所述电池包宽度方向并排间隔设置多个，所述电池管理系统(10)并联多个所述电路板串。
  19. 根据权利要求1所述的电池包，其中，还包括罩壳(70)，
    所述电池管理系统(10)、所述电池模组(20)和所述电路板(30)均设于所述罩壳(70)中。
  20. 一种用电设备，其中，包括权利要求1～19中任一项所述的电池包。
PCT/CN2024/112828 2023-12-01 2024-08-16 一种电池包及用电设备 Pending WO2025112673A1 (zh)

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