WO2022206841A1 - 采样结构、电池包和电动车 - Google Patents

采样结构、电池包和电动车 Download PDF

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Publication number
WO2022206841A1
WO2022206841A1 PCT/CN2022/084079 CN2022084079W WO2022206841A1 WO 2022206841 A1 WO2022206841 A1 WO 2022206841A1 CN 2022084079 W CN2022084079 W CN 2022084079W WO 2022206841 A1 WO2022206841 A1 WO 2022206841A1
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WO
WIPO (PCT)
Prior art keywords
insulating layer
sampling structure
collection
battery
information collector
Prior art date
Application number
PCT/CN2022/084079
Other languages
English (en)
French (fr)
Inventor
高健
彭青波
鄂从吉
熊柏钧
姜勇军
Original Assignee
比亚迪股份有限公司
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 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Priority to EP22779023.5A priority Critical patent/EP4246655A1/en
Priority to CA3211372A priority patent/CA3211372A1/en
Priority to JP2023540652A priority patent/JP2024508086A/ja
Priority to KR1020237021365A priority patent/KR20230110786A/ko
Publication of WO2022206841A1 publication Critical patent/WO2022206841A1/zh
Priority to US18/345,249 priority patent/US20230349976A1/en

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    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/364—Battery terminal connectors with integrated measuring arrangements
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • 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
    • 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
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • 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
    • H01M50/569—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
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • 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
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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 disclosure relates to the field of batteries, and in particular, to a sampling structure, a battery pack and an electric vehicle.
  • a sampling structure is arranged in the battery pack to collect relevant information of the battery (including but not limited to temperature, voltage, etc.).
  • the sampling structure is connected to the battery information collector by plugging, and the battery information collector is connected to the battery management system. current work status.
  • connection method for the sampling structure and the battery information collector has low reliability, and additional insurance is required to ensure the safety of the entire circuit, resulting in an increase in the cost of the battery pack.
  • a sampling structure includes a battery information collector, a plurality of fuses, and a plurality of collection lines, wherein the first ends of the collection lines are used to correspond to the corresponding
  • the battery is connected, the second end of the collection line is provided with a connection terminal, the battery information collector is provided with a plurality of pads, the first end of the fuse is welded with the corresponding connection terminal, and the fuse The second end is welded with the corresponding pad.
  • the fuse is welded with the connection terminal and the pad by bonding, and the fuse is an aluminum wire.
  • the fuse has a dome shape.
  • the sampling structure further includes an insulating layer covering the outside of the plurality of collection wires, and the insulating layer includes a first insulating layer disposed on opposite sides of the plurality of collection wires and a second insulating layer, the first insulating layer is provided with a plurality of through holes, and the part of the collection line exposed in the corresponding through holes constitutes the connection terminal.
  • the sampling structure further includes a reinforcing plate, the reinforcing plate is fixed on a side of the second insulating layer away from the first insulating layer, and the connection terminal is on the side of the second insulating layer.
  • the projection on the second insulating layer is located within the projection range of the reinforcing plate on the second insulating layer.
  • the battery information collector is provided on a side of the reinforcing plate facing away from the second insulating layer, and a side of the battery information collector facing the reinforcing plate is provided with A plurality of the pads, the sampling structure is provided with a plurality of first through holes, the pads are exposed in the corresponding first through holes, and the second end of the fuse passes through the corresponding first through holes.
  • the first through holes are welded with the corresponding pads.
  • the battery information collector is provided on a side of the first insulating layer away from the second insulating layer, and the battery information collector is located at a side away from the first insulating layer There are a plurality of the pads, the battery information collector is provided with a plurality of second through holes, the connection terminals are exposed in the corresponding second through holes, and the first end of the fuse is passed through The corresponding second through holes are welded with the corresponding connection terminals.
  • the first insulating layer, the second insulating layer, and a plurality of the collection lines are configured as FFC or FPC.
  • a first end of the collection wire is provided with a collection terminal, and the collection wire is connected to the corresponding battery through the corresponding collection terminal;
  • a part of the collection wire extends out of the insulating layer to form the collection terminal, or a part of the collection wire is exposed on the insulating layer and welded with the collection terminal;
  • the collection wire is a metal conductor
  • the collection terminal is a metal sheet.
  • a plurality of the fuses and a plurality of the collection wires constitute a sampling assembly
  • the sampling structure includes a plurality of the sampling assemblies
  • the battery information collector has a plurality of welding areas, so A plurality of the bonding pads are arranged on the bonding area, and the bonding pads on the bonding area are welded to the corresponding collection lines through the fuses of the corresponding sampling components.
  • the pads on the plurality of sampling components and the plurality of welding areas are respectively arranged along the length direction of the battery information collector.
  • the present disclosure also provides a battery pack, the battery pack includes a housing, a battery management system, a plurality of electrically connected batteries, and the sampling structure according to any of the above embodiments, the sampling structure and the plurality of The battery is arranged in the casing, and the sampling structure is connected to the battery management system and a plurality of the batteries.
  • the present disclosure also provides an electric vehicle, comprising a body and a battery pack according to any of the above embodiments, wherein the battery pack is fixed on the body, or the box of the battery pack is configured as part of the body.
  • the beneficial effects of the present disclosure are: in the sampling structure of the present disclosure, the first end of the collection line is used to connect with the corresponding battery, the second end of the collection line is provided with a connection terminal, and the battery information collector is provided with a plurality of pads , the first end of the fuse is welded with the corresponding connection terminal, and the second end of the fuse is welded with the corresponding pad.
  • this welding method can ensure the connection between the collection line and the battery information collector.
  • the fuse can not only realize the connection between the collection line and the battery information collector, but also play the role of overcurrent protection, which can reduce the number of structural parts and help reduce the cost of the battery pack. Ensure the safety of the entire sampling circuit.
  • the collection line can transmit the collected battery information to the battery information collector, which can be sent to the battery management system after being processed by the battery information collector, and then the working conditions of the battery can be monitored, which is beneficial to improve the safety of the battery pack. sex.
  • FIG. 1 is an exploded view of a battery pack provided by an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a connection between a sampling structure and a battery provided by an embodiment of the present disclosure (a battery information collector and a fuse are omitted);
  • Fig. 3 is the exploded view of Fig. 2;
  • Fig. 4 is the partial enlarged view of A place in Fig. 3;
  • FIG. 5 is a schematic diagram of a sampling structure provided by an embodiment of the present disclosure.
  • Fig. 6 is a partial enlarged view at B in Fig. 5;
  • FIG. 7 is a schematic structural diagram of the battery information collector in Figure 5;
  • FIG. 8 is a schematic diagram of a sampling structure provided by another embodiment of the present disclosure.
  • Fig. 9 is a partial enlarged view at C in Fig. 8;
  • Fig. 10 is the structural representation of the battery information collector in Fig. 9;
  • FIG. 11 is a schematic structural diagram of an electric vehicle provided by an embodiment of the present disclosure.
  • Sampling structure 101, battery information collector; 102, fuse; 103, collection line; 1031, first end of collection line; 1032, second end of collection line; 104, connection terminal; 105, pad; 106 107, the first insulating layer; 108, the second insulating layer; 109, the through hole; 110, the reinforcing plate; 111, the first through hole; 112, the second through hole; 113, the first bending part 114, connecting piece; 115, connecting hole; 116, collecting terminal; 117, second bending part; 118, welding area; 119, sampling assembly;
  • the present disclosure provides a battery pack 100 including a sampling structure 10 , a housing 30 , a battery management system 40 and a plurality of electrically connected batteries 20 .
  • the sampling structure 10 and the plurality of batteries 20 are arranged in the casing 30 , and the sampling structure 10 is connected to the battery management system 40 and the plurality of batteries 20 .
  • the sampling structure 10 includes a battery information collector 101, a plurality of fuses 102, and a plurality of collection lines 103.
  • the first end 1031 of the collection line 103 is used for connecting with the corresponding battery 20, and the second end 1032 of the collection line 103 is provided with
  • the connection terminal 104 is provided with a plurality of pads 105 on the battery information collector 101 .
  • the first end of the fuse 102 is welded to the corresponding connection terminal 104
  • the second end of the fuse 102 is welded to the corresponding pad 105 .
  • the first end 1031 of the collection line 103 is used to connect with the corresponding battery 20
  • the second end 1032 of the collection line 103 is provided with a connection terminal 104
  • the battery information collector 101 is provided with a plurality of The pad 105
  • the first end of the fuse 102 is welded with the corresponding connection terminal 104
  • the second end of the fuse 102 is welded with the corresponding pad 105.
  • this welding method can ensure the acquisition of The reliability of the connection between the line 103 and the battery information collector 101; in addition, the fuse 102 can not only realize the connection between the collection line 103 and the battery information collector 101, but also play the role of overcurrent protection, which can reduce the number of structural parts , which is beneficial to reduce the cost of the battery pack 100 and at the same time can ensure the safety of the entire sampling circuit.
  • the collection line 103 can transmit the collected information of the battery 20 to the battery information collector 101, and after being processed by the battery information collector 101, it can be transmitted to the battery management system 40, and then the working condition of the battery 20 can be monitored, which is beneficial to The safety of using the battery pack 100 is improved.
  • connection between the battery information collector 101 and the battery management system 40 is a common method in the art, and details are not described herein again.
  • the fuse 102 is welded with the connection terminal 104 and the pad 105 by bonding welding, and the fuse 102 is an aluminum wire. This structure is beneficial to reduce production costs.
  • each connection terminal 104 and each pad 105 can be connected by one fuse 102 or multiple fuses 102, and the specific number can be set according to actual use requirements.
  • the fuse 102 has an arch shape, which can reduce the risk of short circuit caused by the fuse 102 overlapping with other structures, thereby improving safety.
  • the sampling structure 10 further includes an insulating layer 106 covering the plurality of collecting wires 103 .
  • An insulating layer 107 and a second insulating layer 108 are provided.
  • the first insulating layer 107 is provided with a plurality of through holes 109 , and the portion of the collection line 103 exposed in the corresponding through holes 109 constitutes the connection terminal 104 .
  • the collection line 103 is a metal conductor.
  • there are twelve collection lines 103 there are twelve collection lines 103 , and correspondingly, there are twelve through holes 109 , and the portion of each collection line 103 exposed to the corresponding through hole 109 is formed as a connection terminal 104 .
  • the plurality of through holes 109 on the first insulating layer 107 are distributed in multiple rows, and correspondingly, the plurality of connecting terminals 104 are also distributed in multiple rows. With this arrangement, the arrangement of the connection terminals 104 can be made more compact, which is beneficial to reduce the size of the sampling structure 10 . As shown in FIGS. 1 to 4 , the plurality of through holes 109 are distributed in multiple rows along the Z direction. The Z direction may be consistent with the width direction of the battery information collector 101 or the height direction of the battery pack 100 .
  • the sampling structure 10 further includes a reinforcing plate 110 , the reinforcing plate 110 is fixed on the side of the second insulating layer 108 away from the first insulating layer 107 , and the connecting terminal 104 is located on the side of the second insulating layer 108 away from the first insulating layer 107 .
  • the projection on the second insulating layer 108 is located within the projection range of the reinforcing plate 110 on the second insulating layer 108 .
  • the projection of the connection terminal 104 on the reinforcing plate 110 is located within the contour range of the reinforcing plate 110 . In this way, when the connecting terminal 104 and the pad 105 are welded, the reinforcing plate 110 can play a supporting role for the connecting terminal 104, which is beneficial to improve the reliability of the welding between the two.
  • the battery information collector 101 is disposed on the side of the reinforcing plate 110 away from the second insulating layer 108 , and the battery information collector 101 is disposed on the side facing the reinforcing plate 110 .
  • There are a plurality of pads 105 a plurality of first through holes 111 are formed on the sampling structure 10 , the pads 105 are exposed in the corresponding first through holes 111 , and the second end of the fuse 102 is penetrated through the corresponding first through holes 111 is soldered with the corresponding pad 105 .
  • the plurality of first through holes 111 and the plurality of connection terminals 104 are alternately arranged in sequence along the width direction of the battery information collector 101 .
  • This arrangement can make the arrangement of the first through holes 111 and the connection terminals 104 on the sampling structure 10 more compact, which is beneficial to the miniaturized design of the sampling structure 10 .
  • the width direction of the battery information collector 101 is consistent with the Z direction. This direction may be consistent with the height direction of the battery pack 100 .
  • the battery information collector 101 is disposed on the side of the first insulating layer 107 away from the second insulating layer 108 , and the battery information collector 101 is away from the first insulating layer 107 .
  • a plurality of pads 105 are arranged on one side, a plurality of second through holes 112 are arranged on the battery information collector 101, the connection terminals 104 are exposed in the corresponding second through holes 112, and the first end of the fuse 102 is penetrated through the corresponding second through holes 112.
  • the second through holes 112 are welded with the corresponding connection terminals 104 .
  • the plurality of second through holes 112 and the plurality of pads 105 are alternately arranged in sequence along the width direction of the battery information collector 101 .
  • This arrangement can make the arrangement of the second through holes 112 and the pads 105 on the battery information collector 101 more compact, which is beneficial to the miniaturized design of the battery information collector 101.
  • the width direction of the battery information collector 101 extends along the Z direction, and this direction may be consistent with the height direction of the battery pack 100 .
  • a plurality of fuses 102 and a plurality of collection lines 103 constitute a sampling assembly 119
  • the sampling structure 10 includes a plurality of sampling assemblies 119
  • the battery information collector 101 has a plurality of welding areas 118
  • a plurality of pads 105 are provided on the bonding area 118
  • the bonding pads 105 on the bonding area 118 are welded to the corresponding acquisition lines 103 through the fuses 102 of the corresponding sampling components 119 .
  • the pad 105 on each welding area 118 is welded to the first end of the fuse 102 of the corresponding sampling assembly 119 , and the second end of the fuse 102 is welded to the connection terminal 104 of the sampling wire 103 of the sampling assembly 119 .
  • the pads 105 on the plurality of sampling components 119 and the plurality of welding areas 118 are respectively arranged along the length direction of the battery information collector 101 , and the length of the battery information collector 101 is along the X The direction extends, and the X direction may be consistent with the width direction of the battery pack 100 . With this arrangement, the design of the sampling structure 10 can be made more compact, which facilitates subsequent assembly.
  • the second end 1032 of the collection wire 103 is provided with a first bent portion 113
  • the connection terminal 104 is provided on the first bent portion 113
  • the first insulating layer 107 and the second insulating layer 108 respectively include a first portion corresponding to the first bending portion 113
  • the through hole 109 is located on the first portion of the first insulating layer 107
  • the reinforcing plate 110 is fixed on the second insulating layer on the first portion of layer 108 .
  • the sampling structure 10 further includes a connecting piece 114 , and the connecting piece 114 is used for fixedly connecting the sampling structure 10 and the battery information collector 101 .
  • the connecting member 114 is a rivet
  • the sampling structure 10 and the battery information collector 101 are provided with connecting holes 115
  • the rivet is fixed in the connecting hole 115 to connect the sampling structure 10 and the battery information collector 101 .
  • the connecting member 114 may also be structural adhesive, and the sampling structure 10 and the battery information collector 101 are connected through structural adhesive.
  • the first insulating layer 107 , the second insulating layer 108 and the plurality of collecting wires 103 are configured as FPC (Flexible Printed Circuit, flexible circuit board).
  • the FPC includes a metal foil and an insulating film covering both sides of the metal foil.
  • the metal foil is etched to form a plurality of collection lines 103 , and the two insulating films constitute a first insulating layer 107 and a second insulating layer 108 respectively.
  • the first insulating layer 107 , the second insulating layer 108 and the plurality of collecting wires 103 are configured as FFC (Flexible Flat Cable, flexible flat cable).
  • the FFC includes a plurality of metal conductors and protective films covering both sides of the plurality of metal conductors.
  • the metal conductors are bonded between the two protective films, the metal conductors form the collection line 103, and the two protective films respectively form the first insulating layer 107 and the protective film.
  • the second insulating layer 108 is a plurality of metal conductors and protective films covering both sides of the plurality of metal conductors.
  • the first end 1031 of the collection line 103 is provided with a collection terminal 116 , and the collection line 103 is connected to the corresponding battery 20 through the corresponding collection terminal 116 . As shown in FIGS. 3 and 6 , a portion of the collection wire 103 extends out of the insulating layer 106 to form the collection terminal 116 .
  • a part of the collection wire 103 may also be exposed to the insulating layer 106 and welded with the collection terminal 116 .
  • the collection wire 103 is a metal conductor, and the collection terminal 116 is a metal sheet.
  • a plurality of batteries 20 are arranged in sequence along the Y direction and connected in series.
  • the batteries 20 include a first electrode 201 and a second electrode 202 for drawing current.
  • the first electrode 201 and the second electrode 202 are distributed on opposite sides of the battery 20 , and the collection line 103 is connected to the first electrode 201 or the second electrode 202 of the corresponding battery 20 through the corresponding collection terminal 116 .
  • the length direction of the battery pack 100 may be consistent with the Y direction.
  • the batteries 20 are connected through a conductive sheet, and the collection line 103 is connected to the corresponding conductive sheet through the corresponding collection terminal 116 .
  • the first end 1031 of the collection wire 103 is provided with a second bent portion 117 , and the collection terminal 116 is provided on the second bent portion 117 .
  • the connection between the collection wire 103 and the battery 20 can be facilitated.
  • the present disclosure further provides an electric vehicle 1000 , including a body 200 and a battery pack 100 according to any of the above embodiments.
  • the battery pack 100 may be fixed on the vehicle body 200 , or the casing 30 of the battery pack 100 may be formed as a part of the vehicle body 200 .
  • the casing 30 is configured as a floor of the vehicle body 200 .
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.
  • installed should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Aviation & Aerospace Engineering (AREA)
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Abstract

本公开提供了一种采样结构、电池包和电动车。采样结构包括电池信息采集器、多个保险丝和多个采集线。采集线的第一端用于与对应的电池连接，采集线的第二端设有连接端子。电池信息采集器上设有多个焊盘。保险丝的第一端与对应的连接端子焊接，保险丝的第二端与对应的焊盘焊接。本公开的采集线和电池信息采集器通过保险丝焊接，保险丝不仅可以起到连接作用，还可起到过流保护作用。

Description

采样结构、电池包和电动车
本公开要求于2021年03月30日提交中国专利局，申请号为202120653606.0，申请名称为“采样结构、电池包和电动车”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开涉及电池领域，尤其涉及一种采样结构、电池包和电动车。
背景技术
相关技术中，在电池包内设置采样结构，以采集电池的相关信息(包含但不局限于温度、电压等)。一般地，采样结构通过插接的方式与电池信息采集器连接，电池信息采集器与电池管理系统连接，电池信息采集器接收采样信息并进行转换处理后传输给电池管理系统，以使用户了解电池当前的工作状况。
但是，采样结构和电池信息采集器采用上述的连接方式可靠性较低，而且为了保证整个回路的安全需要额外设置保险，导致电池包的成本增加。
发明内容
本公开内容旨在至少解决现有技术中存在的问题之一。为此，在本公开的第一个方面，提供一种采样结构，所述采样结构包括电池信息采集器、多个保险丝和多个采集线，所述采集线的第一端用于与对应的电池连接，所述采集线 的第二端设有连接端子，所述电池信息采集器上设有多个焊盘，所述保险丝的第一端与对应的所述连接端子焊接，所述保险丝的第二端与对应的所述焊盘焊接。
在本公开的一些实施例中，所述保险丝与所述连接端子及所述焊盘通过键合焊焊接，所述保险丝为铝丝。
在本公开的一些实施例中，所述保险丝呈拱形状。
在本公开的一些实施例中，所述采样结构还包括包覆于多个所述采集线外的绝缘层，所述绝缘层包括设于多个所述采集线相对两侧的第一绝缘层和第二绝缘层，所述第一绝缘层上设有多个通孔，所述采集线暴露于对应的所述通孔中的部分构成所述连接端子。
在本公开的一些实施例中，所述采样结构还包括补强板，所述补强板固定于所述第二绝缘层背离所述第一绝缘层的一侧，所述连接端子在所述第二绝缘层上的投影位于所述补强板在所述第二绝缘层的投影范围内。
在本公开的一些实施例中，所述电池信息采集器设于所述补强板背离所述第二绝缘层的一侧，所述电池信息采集器面向所述补强板的一侧设有多个所述焊盘，所述采样结构上设有多个第一贯穿孔，所述焊盘暴露于对应的所述第一贯穿孔中，所述保险丝的第二端穿设于对应的所述第一贯穿孔以与对应的所述焊盘焊接。
在本公开的一些实施例中，所述电池信息采集器设于所述第一绝缘层背离所述第二绝缘层的一侧，所述电池信息采集器背离所述第一绝缘层的一侧设有多个所述焊盘，所述电池信息采集器上设有多个第二贯穿孔，所述连接端子暴露于对应的所述第二贯穿孔中，所述保险丝的第一端穿设于对应的所述第二贯 穿孔以与对应的所述连接端子焊接。
在本公开的一些实施例中，所述第一绝缘层、所述第二绝缘层以及多个所述采集线构造为FFC或FPC。
在本公开的一些实施例中，所述采集线的第一端设有采集端子，所述采集线通过对应所述采集端子与对应的所述电池连接；
所述采集线的一部分延伸出所述绝缘层以形成所述采集端子，或者，所述采集线的一部分外露于所述绝缘层并与所述采集端子焊接；
其中，所述采集线为金属导体，所述采集端子为金属片。
在本公开的一些实施例中，多个所述保险丝和多个所述采集线构成采样组件，所述采样结构包括多个所述采样组件，所述电池信息采集器具有多个焊接区，所述焊接区上设有多个所述焊盘，所述焊接区上的焊盘通过对应的所述采样组件的保险丝与对应的采集线焊接。
在本公开的一些实施例中，多个采样组件和多个焊接区上的焊盘分别沿电池信息采集器的长度方向排布。
另一方面，本公开还提供一种电池包，所述电池包包括壳体、电池管理系统、多个电连接的电池以及如上述任意实施例所述的采样结构，所述采样结构和多个所述电池设于所述壳体内，所述采样结构连接所述电池管理系统和多个所述电池。
再一方面，本公开还提供一种电动车，包括车身和如上述任意实施例所述的电池包，所述电池包固定于所述车身上，或者，所述电池包的箱体构成为所述车身的一部分。
本公开的有益效果为：本公开的采样结构，其采集线的第一端用于与对应 的电池连接，采集线的第二端设有连接端子，电池信息采集器上设有多个焊盘，保险丝的第一端与对应的连接端子焊接，保险丝的第二端与对应的焊盘焊接，与采用插接的方式相比，通过这种焊接的方式可以保证采集线和电池信息采集器连接的可靠性；此外，保险丝不仅可以实现采集线与电池信息采集器的连接，还可以起到过流保护的作用，这样可以减小结构件的数量，有利于降低电池包的成本，同时还可保证整个采样回路的安全性。而且，采集线可以将采集到的电池信息传送给电池信息采集器，经电池信息采集器处理后可以传送给电池管理系统，进而可对电池的工况进行监控，有利于提高电池包使用的安全性。
本公开的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。
附图说明
图1是本公开实施例提供的电池包的爆炸图；
图2是本公开一实施例提供的采样结构与电池连接的示意图(其中省略了电池信息采集器和保险丝)；
图3是图2的爆炸图；
图4是图3中A处的局部放大图；
图5是本公开一实施例提供的采样结构的示意图；
图6是图5中B处的局部放大图；
图7图5中电池信息采集器的结构示意图；
图8是本公开另一实施例提供的采样结构的示意图；
图9是图8中C处的局部放大图；
图10是图9中电池信息采集器的结构示意图；
图11是本公开实施例提供的电动车的结构示意图。
附图标记：
1000、电动车；
100、电池包；200、车身；
10、采样结构；101、电池信息采集器；102、保险丝；103、采集线；1031、采集线的第一端；1032、采集线的第二端；104、连接端子；105、焊盘；106、绝缘层；107、第一绝缘层；108、第二绝缘层；109、通孔；110、补强板；111、第一贯穿孔；112、第二贯穿孔；113、第一弯折部；114、连接件；115、连接孔；116、采集端子；117、第二弯折部；118、焊接区；119、采样组件；
20、电池；201、第一电极；202、第二电极；
30、壳体；
40、电池管理系统。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本公开，而不能理解为对本公开的限制。
在本公开的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”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，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
如图1至图5所示，本公开提供了一种电池包100，其包括采样结构10、壳体30、电池管理系统40和多个电连接的电池20。采样结构10和多个电池20设于壳体30内，采样结构10连接电池管理系统40和多个电池20。
其中，采样结构10包括电池信息采集器101、多个保险丝102和多个采集线103，采集线103的第一端1031用于与对应的电池20连接，采集线103的第二端1032设有连接端子104，电池信息采集器101上设有多个焊盘105，保险丝102的第一端与对应的连接端子104焊接，保险丝102的第二端与对应的焊盘105焊接。
本公开提供的采样结构10，其采集线103的第一端1031用于与对应的电池20连接，采集线103的第二端1032设有连接端子104，电池信息采集器101上设有多个焊盘105，保险丝102的第一端与对应的连接端子104焊接，保险丝102的第二端与对应的焊盘105焊接，与采用插接的方式相比，通过这种焊接的方式可以保证采集线103和电池信息采集器101连接的可靠性；此外，保险丝102不仅可以实现采集线103与电池信息采集器101的连接，还可以起到过流保护的作用，这样可以减小结构件的数量，有利于降低电池包100的成本，同时还可保证整个采样回路的安全性。而且，采集线103可以将采集到的电池20信息传送给电池信息采集器101，经电池信息采集器101处理后可以传送给电池管理系统40，进而可对电池20的工况进行监控，有利于提高电池包100使用的安全性。
其中，电池信息采集器101和电池管理系统40的连接为本领域常用的方式，在此不再赘述。
在一些实施例中，如图6和图9所示，保险丝102与连接端子104及焊盘105通过键合焊焊接，保险丝102为铝丝，采用这种结构有利于降低生产成本。
其中，每个连接端子104和每个焊盘105可以通过一个保险丝102或多个保险丝102连接，具体数量可以根据实际使用需求进行设置。
在一些实施例中，如图6和图9所示，保险丝102呈拱形状，这样可降低保险丝102与其他结构搭接而造成短路的风险，从而有利于提高安全性。
在一些实施例中，如图3和图4所示，采样结构10还包括包覆于多个采集线103外的绝缘层106，绝缘层106包括设于多个采集线103相对两侧的第一绝缘层107和第二绝缘层108，第一绝缘层107上设有多个通孔109，采集线103暴露于对应的通孔109中的部分构成连接端子104。其中，采集线103为金属导体。如图4所示，采集线103有十二个，对应的，通孔109有十二个，每个采集线103暴露于对应的通孔109中的部分构成为连接端子104。
在一些实施例中，第一绝缘层107上的多个通孔109呈多排分布，相应的，多个连接端子104也呈多排分布。如此设置，可以使连接端子104的布置更加紧凑，有利于减小采样结构10的尺寸。如图1至图4所示，多个通孔109沿Z方向呈多排分布。其中，Z方向可以与电池信息采集器101的宽度方向或电池包100的高度方向一致。
在一些实施例中，如图5和图6所示，采样结构10还包括补强板110，补强板110固定于第二绝缘层108背离第一绝缘层107的一侧，连接端子104在第二绝缘层108上的投影位于补强板110在第二绝缘层108的投影范围内。 换言之，连接端子104在补强板110上的投影位于补强板110的轮廓范围内。这样，在连接端子104和焊盘105焊接时，补强板110可以对连接端子104起到支撑的作用，有利于提高两者焊接的可靠性。
在一些实施例中，如图5至图7所示，电池信息采集器101设于补强板110背离第二绝缘层108的一侧，电池信息采集器101面向补强板110的一侧设有多个焊盘105，采样结构10上设有多个第一贯穿孔111，焊盘105暴露于对应的第一贯穿孔111中，保险丝102的第二端穿设于对应的第一贯穿孔111以与对应的焊盘105焊接。
如图5和图6所示，多个第一贯穿孔111与多个连接端子104沿电池信息采集器101的宽度方向上依次交替排布。如此设置，可以使采样结构10上的第一贯穿孔111和连接端子104布置的更加紧凑，有利于采样结构10的小型化设计。
其中，电池信息采集器101的宽度方向与Z方向一致。该方向可以与电池包100的高度方向一致。
在另一些实施例中，如图8至图10所示，电池信息采集器101设于第一绝缘层107背离第二绝缘层108的一侧，电池信息采集器101背离第一绝缘层107的一侧设有多个焊盘105，电池信息采集器101上设有多个第二贯穿孔112，连接端子104暴露于对应的第二贯穿孔112中，保险丝102的第一端穿设于对应的第二贯穿孔112以与对应的连接端子104焊接。
如图10所示，多个第二贯穿孔112与多个焊盘105沿电池信息采集器101的宽度方向上依次交替排布。如此设置，可以使电池信息采集器101上的第二贯穿孔112和焊盘105布置的更加紧凑，有利于电池信息采集器101的小型化 设计。
其中，电池信息采集器101的宽度方向沿Z方向延伸，该方向可以与电池包100的高度方向一致。
在一些实施例中，如图5至图10所示，多个保险丝102和多个采集线103构成采样组件119，采样结构10包括多个采样组件119，电池信息采集器101具有多个焊接区118，焊接区118上设有多个焊盘105，焊接区118上的焊盘105通过对应的采样组件119的保险丝102与对应的采集线103焊接。
具体地，每个焊接区118上的焊盘105与对应的采样组件119的保险丝102的第一端焊接，该保险丝102的第二端与该采样组件119的采集线103的连接端子104焊接。
进一步地，如图8及图10所示，多个采样组件119和多个焊接区118上的焊盘105分别沿电池信息采集器101的长度方向排布，电池信息采集器101的长度沿X方向延伸，X方向可以与电池包100的宽度方向一致。如此设置，可使采样结构10的设计更加紧凑，便于后续的装配。
在一些实施例中，如图3和图4所示，采集线103的第二端1032设有第一弯折部113，连接端子104设于第一弯折部113上。其中，第一绝缘层107和第二绝缘层108分别包含与第一弯折部113对应的第一部分，通孔109位于第一绝缘层107的第一部分上，补强板110固定于第二绝缘层108的第一部分上。通过这种弯折结构的设计，可便于采集线103与电池信息采集器101的连接。
在一些实施例中，如图5和图6所示，采样结构10还包括连接件114，连接件114用于将采样结构10和电池信息采集器101固定连接。
例如，连接件114为铆钉，采样结构10和电池信息采集器101上均设有连接孔115，铆钉固定在连接孔115中以将采样结构10和电池信息采集器101连接。当然，在其他实施例中，连接件114也可以为结构胶，采样结构10和电池信息采集器101通过结构胶连接。
在一些实施例中，第一绝缘层107、第二绝缘层108以及多个采集线103构造为FPC(Flexible Printed Circuit，柔性电路板)。
其中，FPC包括金属箔和覆盖在金属箔两侧的绝缘膜，金属箔通过蚀刻形成多个采集线103，两个绝缘膜分别构成第一绝缘层107和第二绝缘层108。
在另一些实施例中，第一绝缘层107、第二绝缘层108以及多个采集线103构造为FFC(Flexible Flat Cable，柔性扁平电缆)。
其中，FFC包括多个金属导体和覆盖在多个金属导体两侧的防护膜，金属导体粘接在两防护膜之间，金属导体构成采集线103，两防护膜分别构成第一绝缘层107和第二绝缘层108。
在一些实施例中，采集线103的第一端1031设有采集端子116，采集线103通过对应采集端子116与对应的电池20连接。如图3和图6所示，采集线103的一部分延伸出绝缘层106以形成采集端子116。
当然，在其他实施例中，采集线103的一部分也可以外露于绝缘层106并与采集端子116焊接。
其中，采集线103为金属导体，采集端子116为金属片。
在一些实施例中，如图2至图4所示，多个电池20沿Y方向依次排布且串联连接，电池20包括用于引出电流的第一电极201和第二电极202，第一电极201和第二电极202分布于电池20相对的两侧，采集线103通过对应的 采集端子116与对应的电池20的第一电极201或第二电极202连接。其中，电池包100的长度方向可以与Y方向一致。
在另一些实施例中，电池20之间通过导电片连接，采集线103通过对应的采集端子116与对应的导电片连接。
在一些实施例中，如图2至图4所示，采集线103的第一端1031设有第二弯折部117，采集端子116设于第二弯折部117上。通过这种弯折结构的设计，可便于采集线103与电池20的连接。
另一方面，如图11所示，本公开还提供了一种电动车1000，包括车身200和上述任意实施例的电池包100。电池包100可以固定于车身200上，或者，电池包100的壳体30构成为车身200的一部分。例如，壳体30构成为车身200的地板。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
在本说明书的描述中，参考术语“实施例”、“具体实施例”、“示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
尽管已经示出和描述了本公开的实施例，本领域的普通技术人员可以理 解：在不脱离本公开的原理和宗旨的情况下可以对这些实施例进行多种变化、修改、替换和变型，本公开的范围由权利要求及其等同物限定。

Claims (13)

  1. 一种采样结构(10)，其特征在于，所述采样结构(10)包括电池信息采集器(101)、多个保险丝(102)和多个采集线(103)，
    所述采集线(103)的第一端(1031)用于与对应的电池(20)连接，所述采集线(103)的第二端(1032)设有连接端子(104)，
    所述电池信息采集器(101)上设有多个焊盘(105)，以及
    所述保险丝(102)的第一端与对应的所述连接端子(104)焊接，所述保险丝(102)的第二端与对应的所述焊盘(105)焊接。
  2. 根据权利要求1所述的采样结构(10)，其特征在于，所述保险丝(102)与所述连接端子(104)及所述焊盘(105)通过键合焊焊接，所述保险丝(102)为铝丝。
  3. 根据权利要求1或2所述的采样结构(10)，其特征在于，所述保险丝(102)呈拱形状。
  4. 根据权利要求1-3任一项所述的采样结构(10)，其特征在于，所述采样结构(10)还包括包覆于多个所述采集线外(103)的绝缘层(106)，所述绝缘层(106)包括设于多个所述采集线(103)相对两侧的第一绝缘层(107)和第二绝缘层(108)，所述第一绝缘层(107)上设有多个通孔(109)，所述采集线(103)暴露于对应的所述通孔(109)中的部分构成所述连接端子(104)。
  5. 根据权利要求4所述的采样结构(10)，其特征在于，所述采样结构(10)还包括补强板(110)，所述补强板(110)固定于所述第二绝缘层(108)背离所述第一绝缘层(107)的一侧，所述连接端子(104)在所述第二绝缘层(108)上的投影位于所述补强板(110)在所述第二绝缘层(108)的投影范围内。
  6. 根据权利要求5所述的采样结构(10)，其特征在于，所述电池信息采集器(101)设于所述补强板(110)背离所述第二绝缘层(108)的一侧，所述电池信息采集器(101)面向所述补强板(110)的一侧设有多个所述焊盘(105)，所述采样结构(10)上设有多个第一贯穿孔(111)，所述焊盘(105)暴露于对应的所述第一贯穿孔(111)中，所述保险丝(102)的第二端穿设于对应的所述第一贯穿孔(111)以与对应的所述焊盘(105)焊接。
  7. 根据权利要求5所述的采样结构(10)，其特征在于，所述电池信息采集器(101)设于所述第一绝缘层(107)背离所述第二绝缘层(108)的一侧，所述电池信息采集器(101)背离所述第一绝缘层(107)的一侧设有多个所述焊盘(105)，所述电池信息采集器(101)上设有多个第二贯穿孔(112)，所述连接端子(104)暴露于对应的所述第二贯穿孔(112)中，所述保险丝(102)的第一端穿设于对应的所述第二贯穿孔(112)以与对应的所述连接端子(104)焊接。
  8. 根据权利要求4所述的采样结构(10)，其特征在于，所述第一绝缘层(107)、所述第二绝缘层(108)以及多个所述采集线(103)构造为柔性扁平 电缆或柔性电路板。
  9. 根据权利要求4所述的采样结构(10)，其特征在于，所述采集线(103)的第一端(1031)设有采集端子(116)，所述采集线(103)通过对应所述采集端子(116)与对应的所述电池(20)连接；
    所述采集线(103)的一部分延伸出所述绝缘层(106)以形成所述采集端子(116)，或者，所述采集线(103)的一部分外露于所述绝缘层(106)并与所述采集端子(116)焊接；
    其中，所述采集线(103)为金属导体，所述采集端子(116)为金属片。
  10. 根据权利要求1-9任一项所述的采样结构(10)，其特征在于，多个所述保险丝(102)和多个所述采集线(103)构成采样组件(119)，所述采样结构(10)包括多个所述采样组件(119)，所述电池信息采集器(101)具有多个焊接区(118)，所述焊接区(118)上设有多个所述焊盘(105)，所述焊接区(118)上的焊盘(105)通过对应的所述采样组件(119)的保险丝(102)与对应的采集线(103)焊接。
  11. 根据权利要求10所述的采样结构(10)，其特征在于，多个采样组件(119)和多个焊接区(118)上的焊盘(105)分别沿所述电池信息采集器(101)的长度方向排布。
  12. 一种电池包(100)，其特征在于，所述电池包(100)包括壳体(30)、 电池管理系统(40)、多个电连接的电池(20)以及如权利要求1-11任一项所述的采样结构(10)，所述采样结构(10)和多个所述电池(20)设于所述壳体(30)内，所述采样结构(10)连接所述电池管理系统(40)和多个所述电池(20)。
  13. 一种电动车(1000)，其特征在于，所述电动车(1000)包括车身(200)和如权利要求12所述的电池包(100)，所述电池包(100)固定于所述车身(200)上，或者，所述电池包(100)的壳体(30)构成为所述车身(200)的一部分。
PCT/CN2022/084079 2021-03-30 2022-03-30 采样结构、电池包和电动车 WO2022206841A1 (zh)

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