WO2024046194A1 - 电池组和用电设备 - Google Patents

电池组和用电设备 Download PDF

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Publication number
WO2024046194A1
WO2024046194A1 PCT/CN2023/114575 CN2023114575W WO2024046194A1 WO 2024046194 A1 WO2024046194 A1 WO 2024046194A1 CN 2023114575 W CN2023114575 W CN 2023114575W WO 2024046194 A1 WO2024046194 A1 WO 2024046194A1
Authority
WO
WIPO (PCT)
Prior art keywords
side wall
battery
projection
conductive layer
opening
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.)
Ceased
Application number
PCT/CN2023/114575
Other languages
English (en)
French (fr)
Inventor
彭芳桂
杨鹏程
刘小平
周权
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 Ampack Technology Ltd
Original Assignee
Xiamen Ampack Technology 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 Ampack Technology Ltd filed Critical Xiamen Ampack Technology Ltd
Priority to EP23859227.3A priority Critical patent/EP4579877A4/en
Priority to JP2025511875A priority patent/JP2025528910A/ja
Publication of WO2024046194A1 publication Critical patent/WO2024046194A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • 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
    • H01M50/50—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
    • 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 application relates to the field of energy storage technology, and in particular to a battery pack and electrical equipment.
  • the battery pack When the battery pack is in use, the battery pack will emit a lot of heat. In order to prevent the battery pack temperature from being too high, the battery pack needs to be cooled.
  • the current traditional heat dissipation method is to add heat sinks between the cells, but this heat dissipation method is slow to dissipate heat. Moreover, the heat dissipation of the battery pack is limited, which also affects the battery equipment using the battery pack.
  • Embodiments of the present application provide a battery pack, including a housing component, a first connector and a battery core component.
  • the housing assembly has a first space, and the housing assembly is provided with a first opening and a second opening communicating with the first space.
  • the first connecting piece is accommodated in the first space.
  • the first connecting piece is provided with a first channel.
  • the first opening and the second opening are connected through the first passage.
  • At least part of the battery core assembly is located in the first space.
  • the first direction is the stacking direction of the battery cells in the battery core assembly.
  • the heat of the cell components of the above-mentioned battery pack flows in the first channel through the external air and is dissipated to the external environment, thereby improving the heat dissipation efficiency of the battery cells.
  • the housing assembly includes a first housing.
  • the first housing includes a first wall, a first side wall, a second side wall, a third side wall and a fourth side wall.
  • the first wall connects the first side wall, the second side wall, the third side wall and the fourth side wall to form a first space.
  • the first opening is provided on the first side wall.
  • the second opening is provided on the second side wall.
  • the first side wall and the second side wall are arranged in an array along the first direction.
  • the third side wall and the fourth side wall are arranged in an array along the second direction.
  • the first direction is perpendicular to the second direction.
  • the projection of the first opening overlaps with the projection of the second opening, which can reduce the path of the first channel and allow external air to quickly pass through the first channel. Take away the heat from battery components and improve heat dissipation efficiency.
  • the distance of the first channel is the shortest and the air inlet and outlet volumes of the first opening and the second opening are large. , to further improve heat dissipation.
  • the first connector includes a first portion.
  • the first channel is located in the first part.
  • the first part is located between the third side wall and the fourth side wall, and is thermally connected to the battery core assembly through the first part.
  • the heat of the battery core assembly is transferred to the first part and flows in the first channel through the external air. , and dispersed into the external environment to improve the heat dissipation efficiency of battery components.
  • the first connector includes a second part connected to the first part.
  • the cell assembly is located between the first wall and the second part.
  • the third direction is perpendicular to both the first direction and the second direction.
  • Part of the heat of the battery core assembly is conducted to the first wall, and part of the heat is dissipated to the external environment through the first wall.
  • Part of the heat of the battery core assembly is conducted to the second part, and the second part is conducted to the first part, and then passes through the first channel. The air flowing inside takes away the heat on the first part and improves heat dissipation.
  • the cell assembly includes a first column of cell groups.
  • the first row of battery cells includes a plurality of battery cells stacked along a first direction.
  • the battery core includes a battery core shell, an electrode assembly disposed in the battery core shell, and an electrode terminal connected to the electrode assembly and led out from the battery core shell.
  • the battery cell assembly further includes a second column of battery cell groups.
  • the first column of battery core groups and the second column of battery core groups are arranged in an array along the second direction.
  • the first part is disposed between the first row of battery core groups and the second row of battery core groups, and the first row of battery core groups and the second row of battery core groups are used to dissipate heat.
  • the first part includes a first surface and a second surface arranged along the second direction.
  • the projection of the first surface overlaps the projection of the first row of battery cells
  • the projection of the second surface overlaps the projection of the second row of battery cells
  • the first row of battery cells is conducted through the first surface
  • the second surface conducts the heat of the second row of battery cells for heat dissipation.
  • the projection of the first column of battery core groups is located within the projection of the first surface.
  • the projection of the battery pack in the second row is located within the projection of the second surface, so that the sides of the battery pack in the first row can conduct heat with the first surface, and the sides of the battery pack in the second row can conduct heat with the second surface. Thermal conduction between surfaces further improves heat dissipation.
  • a thermally conductive glue is provided between the first part and the first row of battery core groups to facilitate rapid conduction of heat to the first connecting member and further improve heat dissipation.
  • a thermally conductive glue is provided between the first part and the second row of battery core groups to facilitate rapid conduction of heat to the first connecting member and further improve heat dissipation.
  • the first connector further includes a third part.
  • the third part connects the first part.
  • the first row of battery packs is located between the second part and the first wall.
  • the second row of battery cells is located between the third section and the first wall.
  • Part of the heat of the battery pack in the second row is conducted to the first wall, and part of the heat is dissipated to the external environment through the first wall.
  • Part of the heat of the battery pack in the second row is conducted to the third part, and the third part is conducted to the first part. , and then take away the heat on the first part through the air flowing in the first channel to improve heat dissipation.
  • the first part is also provided with a second channel.
  • the second channel extends through the first portion along the first direction.
  • the first channel and the second channel are spaced apart along the third direction.
  • the battery pack further includes a first conductive member.
  • the second part is provided with a first gap.
  • the third part is provided with a second gap.
  • One end of the first conductive member is connected to the first row of battery core groups, and the other end is connected to the second row of battery core groups.
  • a portion of the first conductive element penetrates through the first gap, and a portion of the first conductive element penetrates through the second gap.
  • a first insulating member and a first adapter plate are also included.
  • the first adapter board is connected to the electrode terminals.
  • the first insulating member is provided on a side of the first adapter plate facing away from the battery core assembly.
  • the projection of the first adapter plate overlaps the projection of the first insulating member.
  • the projection of the electrode terminal overlaps the projection of the first insulating member, thereby insulating and protecting the first conductive piece and the electrode terminal.
  • a first thermal conductive layer is provided between the first adapter plate and the cell housing.
  • the projection of the electrode terminal overlaps with the projection of the first thermal conductive layer, and the first thermal conductive layer fixes, insulates and conducts heat between the electrode terminal between the cell shell and the first adapter plate.
  • a second thermal conductive layer is provided between the first insulation member and the first adapter plate.
  • the projection of the electrode terminal overlaps the projection of the second thermal conductive layer, and the second thermal conductive layer is used to fix, insulate and conduct heat to the welding part, the first conductive piece and the first conductive sheet.
  • the first thermal conductive layer and the second thermal conductive layer are made of the same material, and the flowing insulating material is flowed in and solidified to form the first thermal conductive layer and the second thermal conductive layer.
  • the second part is located on a side of the first insulation member facing away from the first adapter plate.
  • a third thermal conductive layer is disposed between the second part and the first insulating member. The second thermal conductive layer is transferred to The third thermal conductive layer is transferred from the third thermal conductive layer to the first connector, and then the first connector dissipates heat to the first row of battery core groups.
  • the heat transfer of the battery cores to the first row of battery cells can be improved. Efficiency of connectors.
  • An embodiment of the present application also provides an electrical device, including the battery pack in any of the above embodiments.
  • the heat of the battery pack and the cell components of the electrical equipment flows through the external air in the first channel and is dissipated to the external environment, thereby improving the heat dissipation efficiency of the battery components.
  • Figure 1 shows a schematic structural diagram of a battery pack in some embodiments.
  • Figure 2 shows a schematic structural diagram of the battery pack from another perspective in some embodiments.
  • Figure 3 shows an exploded schematic diagram of a battery pack in some embodiments.
  • Figure 4 shows an exploded schematic view of a housing assembly in some embodiments.
  • Figure 5 shows a schematic cross-sectional view of a housing assembly in some embodiments.
  • FIG. 6 shows a schematic cross-sectional view of the battery pack along II-II in FIG. 1 .
  • Figure 7 shows a schematic structural diagram of the first row of battery core groups and the first adapter plate in some embodiments.
  • Figure 8 shows a schematic structural diagram of a battery core in some embodiments.
  • Figure 9 shows an exploded schematic diagram of a cell in some embodiments.
  • Figure 10 shows a schematic structural diagram of the battery pack with the case assembly removed in some embodiments.
  • FIG. 11 shows a schematic structural view of the battery pack in FIG. 10 with the first connector removed.
  • Figure 12 shows an exploded schematic view of the battery pack with the case assembly removed in some embodiments.
  • Figure 13 shows a schematic structural diagram of the first insulating member in some embodiments.
  • Figure 14 shows a schematic structural diagram of the second insulating member in some embodiments.
  • FIG. 15 shows a schematic cross-sectional view of the battery pack along III-III in FIG. 1 .
  • FIG. 16 shows an enlarged schematic diagram of part IV of FIG. 15 .
  • Figure 17 shows a schematic cross-sectional view of the battery pack along III-III in other embodiments.
  • FIG. 18 shows an enlarged schematic diagram of part V of FIG. 17 .
  • Figure 19 shows a schematic structural diagram of the first connecting member in some embodiments.
  • Figure 20 shows a schematic structural diagram of the first connecting member from another perspective in some embodiments.
  • Figure 21 shows a schematic structural diagram of electrical equipment in some embodiments.
  • Battery pack 100 Housing components 10 First shell 11 First opening 11a Second opening 11b First wall 111 First side wall 112 First connection hole 1121 Second side wall 113 Third side wall 114 Fourth side wall 115 Second housing 12 First Hole 12a Fixed projection 12b First recess 12c Second wall 121 Fifth side wall 122 Third opening 122a Sixth side wall 123 Fourth opening 123a Seventh side wall 124 Eighth side wall 125 Third shell 13 Stand 14 Seals 15 Groove 151 First sealing part 15a Second sealing part 15b Third sealing part 15c Cell components 20 The first row of battery pack 20a Second row battery pack 20b Cell 21 First side 21a Second side 21b Third side 21c Fourth side 21d The fifth side 21e Sixth side 21f Cell housing 211 Part 1 211a Part 2 211b First shell 2111 Second shell 2112 First extension 2113 Second extension 2114 First sealing part 2115 Second sealing part 2116 Electrode assembly 212 Electrode terminal 213 Welding Department 213a First terminal 213b Second terminal 213c First heat conducting member 22a Second
  • a component When a component is said to be “located within” another component, it can be directly located on the other component or there may be an intermediate component present at the same time.
  • a component When a component is said to be “connected” to another component, it may be directly connected to the other component or there may be an intermediate component present at the same time.
  • vertical is used to describe the ideal state between two components. In the actual production or use state, there may be an approximately vertical state between the two components.
  • vertical can refer to the angle range between two straight lines between 90° ⁇ 10°
  • vertical can also refer to the dihedral angle range of two planes between 90° ⁇ 10°
  • vertical It can also refer to the angle between a straight line and a plane within the range of 90° ⁇ 10°.
  • the two components described as “perpendicular” may not be absolutely straight lines or planes, or may be roughly straight lines or planes. From a macro perspective, the components are considered to be “straight lines” or "planes” if the overall extension direction is straight lines or planes.
  • Embodiments of the present application provide a battery pack, including a housing component, a first connector and a battery core component.
  • the housing assembly has a first space, and the housing assembly is provided with a first opening and a second opening communicating with the first space.
  • the first connecting piece is accommodated in the first space.
  • the first connecting piece is provided with a first channel.
  • the first opening and the second opening are connected through the first channel.
  • At least part of the battery core assembly is located in the first space.
  • the first direction is the stacking direction of the battery cells in the battery core assembly.
  • the heat of the cell components of the above-mentioned battery pack flows in the first channel through the external air and is dissipated to the external environment, thereby improving the heat dissipation efficiency of the battery cells.
  • an embodiment of the present application provides a battery pack 100 , including a case assembly 10 , a battery cell assembly 20 and a first connector 30 .
  • the housing assembly 10 has a first space, and the battery core assembly 20 and the first connector 30 are both located in the first space.
  • the housing assembly 10 is also provided with a first opening 11a and a second opening 11b that communicate with the first space.
  • the first connecting member 30 is provided with a first channel 30a. One of the first channels 30a One end is connected to the first opening 11a, and the other end is connected to the second opening 11b.
  • Part of the cell assembly 20 faces the first connecting member 30 and can dissipate heat through the first connecting member 30.
  • External air can enter the first channel 30a from the first opening 11a and be discharged from the second opening 11b, or external air can pass through the first connecting member 30.
  • the second opening 11b enters the first channel 30a and is discharged from the first opening 11a.
  • Part of the heat of the battery core assembly 20 flows in the first channel 30a through external air and is dissipated to the external environment.
  • the remaining part faces the inner wall of the casing assembly 10, and part of the heat is dissipated to the external environment through the inner wall of the casing assembly 10, so that each surface of the battery cell assembly 20 can conduct heat transfer with the outside world, thereby improving the safety of the battery cell assembly. 20% cooling efficiency.
  • the battery pack 100 can use external air to take away the heat of the cell assembly 20 through the flow of air.
  • natural wind or external air-cooling equipment may be used for heat dissipation.
  • the battery pack 100 can be used on devices that are in motion during use, such as drones, electric mopeds, etc. Since the air flows faster when the device is moving, rapid heat dissipation of the battery pack 100 can be achieved.
  • the housing assembly 10 includes a first housing 11, the first housing 11 is provided with a first space, and the first housing 11 includes a first Wall 111, first side wall 112, second side wall 113, third side wall 114 and fourth side wall 115.
  • the first side wall 112 and the second side wall 113 are both connected to the first wall 111, and the first side wall 112 and the second side wall 113 are arranged in an array.
  • the third side wall 114 and the fourth side wall 115 are both connected to the first wall 111, and the third side wall 114 and the fourth side wall 115 are arranged in an array.
  • the third side wall 114 is also connected to the first side wall 112 and the second side wall 113, and the fourth side wall 115 is also connected to the third side wall 114 and the fourth side wall 115, and forms a first space.
  • the first housing 11 and the first connector 30 include thermally conductive materials, which can improve heat dissipation performance.
  • the first housing 11 and the first connector 30 include a metal thermally conductive material and a thermally conductive insulating material, and the insulating material can cover the outer surface of the metal thermally conductive material.
  • the metal thermally conductive material of the first housing 11 and the first connector 30 includes aluminum.
  • the first housing 11 and the first connecting member 30 are made of metal material.
  • the structure of the battery pack 100 will be described in conjunction with the X, Y, and Z coordinate axes.
  • the X, Y, and Z coordinate axes are perpendicular to each other, and the X direction is defined as the first direction.
  • the Y direction is the second direction, and the Z direction is the third direction.
  • the first direction In the directions in which the side walls 115 are arranged, the third direction Z is perpendicular to the surface of the first wall 111 , and the first direction X is perpendicular to the second direction Y and the third direction Z at the same time.
  • the first opening 11a penetrates the first side wall 112, and the second opening 11b penetrates the second side wall 113.
  • the projection of the first opening 11a overlaps with the projection of the second opening 11b.
  • the projection of the first opening 11a partially overlaps the projection of the second opening 11b.
  • the projection of the first opening 11a overlaps the projection of the second opening 11b.
  • the first side wall 112 is connected to the first connecting member 30, and the second side wall 113 is connected to the first connecting member 30, so that one end of the first channel 30a is connected to the first opening 11a, and the other end is connected to the second opening 11b.
  • the first opening 11a is provided on the third side wall 114, and the second opening 11b is provided on the fourth side wall 115.
  • the first opening 11a penetrates the first wall 111
  • the second opening 11b penetrates the first side wall 112 and the second side wall 113.
  • One end of the first channel 30a is connected to the first opening 11a
  • the other end is connected to the second opening 11b on the first side wall 112 and the second opening 11b on the second side wall 113.
  • Air can flow from the first opening 11b on the first wall 111.
  • the air enters through the opening 11a, passes through the first channel 30a, and is discharged from the second opening 11b on the first side wall 112 and the second opening 11b on the second side wall 113.
  • the air outlet volume is increased and heat dissipation is improved.
  • Air can also enter from one of the second openings 11b on the first side wall 112 and the second opening 11b on the second side wall 113, and be discharged from the other second opening 11b and the first opening 11a. , improve heat dissipation.
  • first side wall 112 and the second side wall 113 are provided with a plurality of first connection holes 1121, and the two sides of the first connection member 30 disposed along the first direction X are provided with a plurality of second connections.
  • fasteners (not shown), such as screws, etc., pass through the first connection hole 1121 and the second connection hole 30b to fixedly connect the first connection member 30 to the first side wall 112 and the second side wall 113. superior.
  • the housing assembly 10 further includes a second housing 12.
  • the second housing 12 has a second space.
  • the first housing 11 is disposed in the second housing 12.
  • the second housing 12 is used for lifting.
  • the impact resistance of the battery pack 100 reduces the risk of the first housing 11 deforming and stabbing the battery core assembly 20 after being impacted.
  • the second housing 12 includes a plastic housing.
  • the second housing 12 is formed through an injection molding process.
  • the second housing 12 includes a second wall 121 , a fifth side wall 122 , a sixth side wall 123 , a seventh side wall 124 and an eighth side wall 125 .
  • the fifth side wall 122 and the sixth side wall 123 are both connected to the second wall 121 , and the fifth side wall 122 and the sixth side wall 123 are arranged along the first direction X.
  • the seventh side wall 124 and the eighth side wall 125 are both connected to the second wall 121 , and the seventh side wall 124 and the eighth side wall 125 are arranged along the second direction Y.
  • the seventh side wall 124 is also connected to the fifth side wall 122 and the sixth side wall 123
  • the eighth side wall 125 is also connected to the fifth side wall 122 and the sixth side wall 123, and forms a second space.
  • At least one of the second wall 121 , the fifth side wall 122 , the sixth side wall 123 , the seventh side wall 124 and the eighth side wall 125 is provided with a first hole 12 a , and the first housing 11 passes through the first hole 12 a Exposed to facilitate heat dissipation.
  • the second wall 121, the fifth side wall 122, the sixth side wall 123, the seventh side wall 124 and the eighth side wall 125 are all provided with first holes 12a to improve heat dissipation, and a plurality of first holes 12a
  • Making the second housing 12 have a mid-mesh shape reduces the consumable materials of the second housing 12, thereby reducing the weight of the second housing 12 and making the battery pack 100 lighter. It can be understood that the second housing 12 itself can also dissipate heat from the first housing 11 .
  • the fifth side wall 122 is provided with a third opening 122a
  • the sixth side wall 123 is provided with a fourth opening 123a.
  • the projections of the third opening 122a and the fourth opening 123a overlap with the projection of the first channel 30a.
  • the projection of the first opening 11a overlaps with the projection of the third opening 122a.
  • the projection of the first opening 11a overlaps the projection of the third opening 122a, which can increase the amount of air inlet and outlet.
  • the projection of the second opening 11b overlaps the projection of the fourth opening 123a.
  • the projection of the second opening 11b overlaps the projection of the fourth opening 123a, which can increase the amount of air inlet and outlet. For example, if the battery pack 100 moves in the opposite direction to the first direction X or the wind direction of the external air cooling device is along the first direction 11b and the fourth opening 123a are discharged.
  • first housing 11 and the second housing 12 are connected with a gap or an interference connection, so that the outer surface of the first housing 11 fits the inner surface of the second housing 12 to facilitate fixing the first housing. 11.
  • the housing assembly 10 further includes a third housing 13 and a bracket 14.
  • the bracket 14 connects the first housing 11 and the second housing 12.
  • the third housing 13 connects the bracket 14, thereby connecting the first housing to the bracket 14.
  • the body 11 is enclosed in a second housing 12 .
  • the connection between the seventh side wall 124 and the fifth side wall 122 is provided with a fixing protrusion 12b.
  • the connection between the seventh side wall 124 and the sixth side wall 123 is provided with a fixation protrusion 12b.
  • the eighth side wall 125 and the fifth side wall are provided with a fixing protrusion 12b.
  • Bracket 14 passes The fastener is fixedly connected to the fixing protrusion 12b to restrict the first housing 11 within the second housing 12.
  • the third housing 13 is fixedly connected to the side of the bracket 14 facing away from the second housing 12 .
  • the battery pack 100 further includes a circuit board 40 , and the circuit board 40 is disposed in the third housing 13 .
  • the circuit board 40 is electrically connected to the battery core assembly 20 .
  • the circuit board 40 includes a BMS component (Battery Management System).
  • the BMS component includes multiple electronic components. The multiple electronic components can implement battery data collection, control, protection, communication, power calculation, Signal transmission, power transmission and other functions.
  • the housing assembly 10 further includes a seal 15 connecting a portion of the first side wall 112 , the second side wall 113 , the third side wall 114 and the fourth side wall 115 away from the first wall 111 . side.
  • the bracket 14 presses the seal 15 along the third direction Z.
  • the seal 15 has a closed-loop structure, the seal 15 is provided with a groove 151, and the first side wall 112, the second side wall 113, the third side wall 114 and the fourth side wall 115 are away from the first wall 111. Both sides are located in the groove 151.
  • the projections of the first side wall 112 and the second side wall 113 overlap with the projection of the seal 15 .
  • the projections of the third side wall 114 and the fourth side wall 115 overlap with the projection of the sealing member 15 .
  • the seal 15 includes a first sealing portion 15a, a second sealing portion 15b and a third sealing portion 15c.
  • the first sealing portion 15a is provided between the inner surface of the first housing 11 and the bracket 14 .
  • the second sealing part 15b is provided between the outer surface of the first housing 11 and the inner surface of the second housing 12.
  • the third sealing part 15c connects the first sealing part 15a and the second sealing part 15b.
  • the third sealing part 15c Located between the bracket 14 and the first housing 11, the bracket 14 is contact-connected with the third sealing portion 15c.
  • a first adhesive layer (not shown) is provided between the first sealing part 15a and the inner surface of the first housing 11, and between the second sealing part 15b and the outer surface of the first housing 11 A first adhesive layer is provided in between, and the sealing member 15 is adhered and fixed to the first housing 11 through the first adhesive layer.
  • the first adhesive layer includes sealant.
  • a second adhesive layer (not shown) is provided between the first sealing part 15a and the bracket 14, a second adhesive layer is provided between the second sealing part 15b and the inner surface of the second housing 12, and the third sealing layer A second adhesive layer is provided between the portion 15c and the bracket 14.
  • the second adhesive layer includes sealant.
  • the fifth side wall 122 , the sixth side wall 123 , the seventh side wall 124 and the eighth side wall The end of 125 facing away from the second wall 121 is provided with a first recess 12c, and the second sealing part 15b is provided in the first recess 12c.
  • a second sealing part is added.
  • the extension path of the gap between 15b and the side wall of the second case 12 reduces the entry of moisture into the first case 11, further reducing the risk of battery short circuit.
  • the sixth side wall 123 as an example, one end of the sixth side wall 123 away from the second wall 121 is recessed along the first direction X to form a first recess 12c.
  • the projection of the second sealing portion 15b overlaps the projection of the first recess 12c.
  • the projection of the second sealing portion 15b is located within the projection of the first recess 12c. It can be understood that the depth of the first recess 12c along the first direction X may be an increasing extension path.
  • the first opening 11 a and the second opening 11 b are provided on both sides of the cell assembly 20 .
  • the cell assembly 20 includes a first column of cell groups 20a.
  • the first row of battery packs 20a is disposed between the first side wall 112 and the second side wall 113, and the first row of battery packs 20a is disposed between the third side wall 114 and part of the first connector 30.
  • the row battery pack 20a is also disposed between the first wall 111 and part of the first connector 30 .
  • the first row of battery cells 20a includes a plurality of battery cells 21 stacked along the first direction X.
  • the battery core 21 includes a battery core housing 211 , an electrode assembly 212 provided in the battery core housing 211 , and an electrode terminal 213 connected to the electrode assembly 212 and led out from the battery core housing 211 .
  • the cell housing 211 includes a first part 211a and a second part 211b. The first part 211a accommodates the electrode assembly 212, the second part 211b is connected to the first part 211a, and the electrode terminal 213 extends from the second part 211b.
  • the cell housing 211 includes a first housing 2111 and a second housing 2112.
  • the first housing 2111 is connected to the second housing 2112. At least one of the first housing 2111 and the second housing 2112 is provided with a recess for placing the electrode assembly 212 .
  • the first shell 2111 and the second shell 2112 can be folded along the connection position (dashed line position), so that the first shell 2111 and the second shell 2112 overlap to form a first part 211a to cover the electrode assembly 212.
  • the circumferential side of the first housing 2111 extends outward to form a plurality of first extension portions 2113
  • the circumferential side of the second housing 2112 extends outward to form a plurality of second extension portions 2114 .
  • the second part 211b includes a first sealing part 2115 and a second sealing part 2116.
  • the first sealing part 2115 is arranged opposite to the connection position, and the electrode terminal 213 extends from the first sealing part 2115 to the first part 211a.
  • the second part 211b includes two second sealing parts 2116, and the two second sealing parts 2116 are arranged along the second direction Y.
  • the second part 211b includes a first sealing part 2115
  • the battery core 21 includes two electrode terminals 213, two The electrode terminal 213 extends out of the battery case 211 from the first sealing portion 2115 .
  • the first housing 2111 and the second housing 2112 are not integrally arranged, and the second part 211b includes two first sealing parts 2115 arranged in an array along the third direction Z.
  • the battery core 21 It includes two electrode terminals 213, one of which extends from one of the first sealing parts 2115 out of the battery case 211, and the other electrode terminal 213 extends from the other first sealing part 2115 out of the battery shell 211.
  • the electrode terminals 213 are arranged in an array along the third direction Z.
  • the electrode assembly 212 includes a rolled structure formed by rolling a positive electrode sheet, a negative electrode sheet and a separator film. In other embodiments, the electrode assembly 212 may also have a laminated structure. The positive electrode sheet, the isolation film and the negative electrode sheet are sequentially stacked to form an electrode assembly unit, and multiple electrode assembly units are then stacked to form the electrode assembly 212.
  • the battery case 211 includes aluminum plastic film.
  • the battery core 21 includes a soft-packed battery core.
  • the electrode terminal 213 has a welding portion 213a extending out of the battery case 211.
  • the welding portion 213a is formed after the electrode terminal 213 is bent.
  • the electrode terminal 213 includes a first terminal 213b and a second terminal 213c.
  • the first terminal 213b and the second terminal 213c have opposite polarities.
  • One of the first terminal 213b and the second terminal 213c is a positive terminal, and the other is a positive terminal.
  • One is the negative terminal.
  • the projection of the welding portion 213a of the first terminal 213b of the battery core 21 at least partially overlaps the projection of the welding portion 213a of the second terminal 213c of the adjacent battery core 21.
  • the first terminal 213b and the second terminal 213c of the adjacent battery cores 21 are bent toward each other, and the welding portion 213a of the first terminal 213b and the welding portion 213a of the second terminal 213c are stacked and connected to each other, and the adjacent battery cores 21 are connected in series.
  • the welding portions 213a of adjacent battery cores 21 By connecting the welding portions 213a of adjacent battery cores 21 to each other, the number of processing steps is reduced. In other embodiments, adjacent cells 21 may be connected in parallel.
  • a single battery core 21 is taken as an example.
  • the battery core 21 includes a first side 21a, a second side 21b, a third side 21c, a fourth side 21d, a fifth side 21e and a sixth side 21f.
  • the first side surface 21a and the second side surface 21b are arranged in an array along the first direction X.
  • the third side surface 21c and the fourth side surface 21d are arranged in an array along the second direction Y.
  • the fifth side surface 21e and the sixth side surface 21f are arranged in an array along the third direction Z, and the electrode terminal 213 protrudes from the fifth side surface 21e.
  • the first side 21a is disposed toward the first side wall 112, and the second side 21b is disposed toward the second side wall 113.
  • the third side 21c is provided toward the third side wall 114.
  • the fourth side 21d is disposed toward part of the first connecting member 30 .
  • the fifth side 21e is disposed toward the other part of the first connecting member 30 .
  • the sixth side surface 21f is provided toward the first wall 111.
  • the first row of battery core groups 20a further includes a first thermal conductor 22a.
  • Each battery core 21 is thermally connected to at least one first thermal conductor 22a.
  • the first thermal conductor 22a is thermally connected to the first housing 11 and the first thermal conductor 22a.
  • the first connector 30 transfers the heat of the battery core 21 to the first housing 11 and the first connector 30 through the first thermal conductor 22a, and then conducts heating on the battery core 21 through the first housing 11 and the first connector 30. heat dissipation.
  • the first heat conductive member 22a is connected to the first side 21a or the second side 21b and is bent to extend to the third side 21c, the fourth side 21d and the sixth side 21f.
  • the first heat conductive member 22a located on the first side 21a is thermally connected to the first side wall 112.
  • the first heat conducting member 22a located on the second side 21b is thermally connected to the second side wall 113.
  • the first heat conductive member 22a located on the third side 21c is thermally connected to the third side wall 114.
  • the first heat conducting member 22a located on the fourth side 21d is thermally connected to the surface of the first connecting member 30.
  • the first thermal conductive member 22a located on the sixth side 21f is thermally connected to the surface of the first wall 111, and transfers the heat of the battery core 21 to the first connecting member 30 and the first housing 11 through the first thermal conductive member 22a, thereby improving the thermal conductivity of the battery core. 21% heat dissipation effect.
  • the first heat conducting member 22a does not need to extend to the fourth side 21d, and the fourth side 21d is directly thermally connected to the first connecting member 30.
  • the thermal connection may be a heat transfer connection through thermally conductive glue or the like.
  • Thermal connection can also be a direct contact connection between two structural members to achieve thermal connection.
  • the first thermal conductive member 22a is contact-connected to the first housing 11 and the first connecting member 30 .
  • the first thermal conductive member 22a includes an aluminum sheet.
  • an elastic member 23 is also provided between adjacent first thermal conductive members 22a. When the battery core 21 expands, the elastic member 23 can be compressed to provide expansion space for the battery core 21.
  • the battery cell assembly 20 further includes a second row of battery core groups 20b, and the first row of battery core groups 20a and the second row of battery core groups 20b are arranged along the second direction Y.
  • the first connecting member 30 is provided between the first row of battery cells 20a and the second row of battery cells 20b.
  • the second row of battery packs 20b is disposed between part of the first connector 30 and the fourth side wall 115, and the second row of battery packs 20b is disposed between the first side wall 112 and the second side wall 113.
  • the row battery pack 20b is also disposed between the first wall 111 and part of the first connector 30 .
  • the first connector 30 thermally connects the first row of battery core groups 20a and the second row of battery core groups 20b, and can simultaneously transfer the heat of the first row of battery core groups 20a and the second row of battery core groups 20b. to the first connecting member 30, and quickly dissipates heat through the first channel 30a.
  • the battery cells 21 of the second row of battery cells 20b have the same structure as the battery cells 21 of the first row of battery cells 20a.
  • the second row of battery cells 20b includes a plurality of battery cells 21 stacked along the first direction X, each The battery cores 21 are all in contact with the first connecting member 30 and the first housing 11 .
  • the second column battery core group 20b further includes a second thermal conductive member 22b, and the second thermal conductive member 22b and the first thermal conductive member 22a have substantially the same structure.
  • the first connecting member 30 is connected to the first thermal conductive member 22a, and the first connecting member 30 is connected to the second thermal conductive member 22b.
  • the first connecting member 30 is located between the first thermal conductive member 22a and the second thermal conductive member 22b. Heat dissipation of battery cell assembly 20.
  • the battery pack 100 further includes a first conductive member 24 .
  • One end of the first conductive member 24 is connected to the first row of battery core groups 20a, and the other end is connected to the second row of battery core groups 20b.
  • one end of the first conductive member 24 is connected to the first terminal 213b of the battery core 21 in the first row of battery core groups 20a, and the other end is connected to the second terminal 213c of the battery core 21 in the second row of battery core groups 20b.
  • the first row of battery core groups 20a and the first row of battery core groups 20a are connected in series.
  • one end of the first conductive member 24 is connected to the first terminal 213b of the battery core 21 in the first column of battery core group 20a, and the other end is connected to the first terminal 213b of the battery core 21 in the second column of battery core group 20b.
  • the first row of battery core groups 20a and the first row of battery core groups 20a are connected in parallel.
  • the first conductive member 24 is provided with a second recess 241, and the first connecting member 30 is partially disposed in the second recess 241.
  • the battery pack 100 further includes a first adapter plate 50, and the first adapter plate 50 is connected to the first row of battery packs 20a.
  • the first adapter plate 50 is provided with multiple groups of holes 51 , and each group of holes 51 includes a first communication hole 511 and a second communication hole 512 arranged along the first direction X.
  • the first communication hole 511 and the second communication hole 512 extend along the second direction Y.
  • the first terminal 213b of the adjacent battery core 21 passes through the first communication hole 511, the second terminal 213c of the other battery core 21 passes through the second communication hole 512, and the welding portion 213a of the first terminal 213b and the second terminal 213c
  • the welding parts 213a are stacked on each other and then connected to the first adapter plate 50 .
  • the first adapter board 50 includes a circuit board.
  • the first adapter board 50 includes a printed circuit board (PCB), and a plurality of wires (not shown) are provided on the first adapter board 50 .
  • the first adapter board 50 includes a flexible printed circuit board (FPC, Flexible Printed Circuit).
  • first conductive sheets 52 are provided on the side of the first adapter plate 50 away from the battery core 21 .
  • the first conductive sheet 52 is provided between the first communication hole 511 and the second communication hole 512 .
  • the first terminal 213b of the adjacent battery core 21 passes through the first communication hole 511, and the second terminal 213c of the other battery core 21 passes through the second communication hole. 512.
  • the welding portion 213a of the first terminal 213b and the welding portion 213a of the second terminal 213c are stacked on each other and then welded to the first conductive sheet 52. Welding includes laser welding, ultrasonic welding, etc. In other embodiments, the welding portion 213a and the first conductive sheet 52 can also be connected through other connection methods such as conductive glue.
  • each group of holes 51 also includes a third communication hole 513 .
  • the third communication hole 513 is located between the adjacent first conductive sheets 52 .
  • the battery pack 100 further includes a first electrical connection part 53 connected to the first adapter plate 50.
  • the first electrical connection part 53 includes a first conductive part 531 and a first insulating part 532.
  • the first insulating part 532 is sleeved on the first conductive part 531. Both ends of the first conductive part 531 protrude from the first insulating part 532.
  • One end of the first conductive part 531 is connected to the first conductive sheet 52, and the other end is connected to the circuit board 40.
  • the first conductive part 531 and the first conductive sheet 52 have an integrated structure.
  • the first adapter board 50 is also provided with a first sampling wire harness 54 , and the first sampling wire harness 54 is connected to the circuit board 40 .
  • the first sampling wire harness 54 can collect current, voltage, temperature and other information of the battery core 21 .
  • the battery pack 100 further includes a first insulating member 60 .
  • the first insulating member 60 is disposed on a side of the first conductive sheet 52 away from the battery core 21 .
  • the conductive piece 52 and the electrode terminal 213 provide insulation protection.
  • the first insulation member 60 includes a first body 61 and a first side plate 62 extending from an edge of the first body 61 .
  • the projection of the first adapter plate 50 overlaps with the projection of the first body 61 .
  • the projection of the first adapter plate 50 is located within the projection of the first body 61 so that the first body 61 covers the first conductive sheet 52 and the electrode terminal 213 .
  • the projection of the first side plate 62 overlaps the projection of the first adapter plate 50 . Further, along the first direction X or the second direction Y, the projection of the first conductive sheet 52 is located within the projection of the first side plate 62 .
  • the first body 61 is provided with a fifth opening 611 , and the fifth opening 611 penetrates the surface of the first body 61 along the third direction Z.
  • the first electrical connection portion 53 passes through the fifth opening 611 and extends to the side of the first body 61 away from the first adapter plate 50 .
  • the first body 61 is provided with a first protrusion 612 , which is provided at the edge of the fifth opening 611 , and the first electrical connection part 53 is limited by the first protrusion 612 .
  • the projection of the first conductive portion 531 is located within the projection of the first convex portion 612 .
  • the first protruding portion 612 insulates the end of the first conductive portion 531 that protrudes from the first insulating portion 532 to reduce the risk of short circuit in the portion of the first conductive portion 531 that protrudes from the first insulating portion 532 .
  • the projection of the first insulating part 532 overlaps the projection of the first convex part 612, further improving the insulation of the extended part of the first conductive part 531.
  • the first body 61 is provided with a sixth opening 613.
  • the sixth opening 613 613 penetrates the surface of the first body 61 .
  • the first conductive member 24 passes through the sixth opening 613 and is connected to the first conductive piece 52.
  • the first body 61 is provided with a second protrusion 614.
  • the second protrusion 614 is located at the edge of the sixth opening 613, along the edge of the sixth opening 613.
  • the projection of the first conductive member 24 overlaps with the projection of the second protrusion 614 , and the first conductive member 24 is limited and insulated by the second protrusion 614 .
  • part of the structure of the second protrusion 614 is located between the first conductive member 24 and the first connecting member 30 , thereby reducing the risk of a short circuit between the first conductive member 24 and the first connecting member 30 .
  • the first body 61 is provided with a seventh opening 615 , and the seventh opening 615 penetrates the surface of the first body 61 .
  • a third protrusion 616 is provided on the edge of the seventh opening 615 .
  • the first sampling wire harness 54 passes through the first body 61 through the seventh opening 615 and is connected to the circuit board 40 .
  • the first thermal conductive layer 101 is between the battery case 211 and the first adapter plate 50 .
  • Insulation and thermal conductivity are present in one embodiment.
  • the first thermally conductive layer 101 is formed by pouring an insulating material into the battery pack 100 and then solidifying it.
  • the first thermal conductive layer 101 contains at least one of potting glue and foam glue.
  • the first thermal conductive layer 101 is formed by pouring potting glue into the battery pack 100 and then solidifying it.
  • the first thermal conductive layer 101 is formed by foaming foam.
  • the first thermal conductive layer 101 contains resin. After the resin is heated and melted, the flowable resin is disposed between the battery case 211 and the first adapter plate 50 by pouring and then solidified.
  • the first thermal conductive layer 101 is formed by using an injection molding process to place a flowable resin between the cell housing 211 and the first adapter plate 50 and then solidify it.
  • the first thermal conductive layer 101 fills the gap between the battery case 211 and the first adapter plate 50 , strengthens the insulation protection of the electrode terminals 213 and the first adapter plate 50 , and restricts water, dust and other foreign matter from entering the battery case 211 and the first adapter board 50 .
  • the second thermal conductive layer 102 is disposed between the first insulating member 60 and the first adapter plate 50 . Along the first direction The projection overlaps with the projection of the second thermal conductive layer 102, and the second thermal conductive layer 102 is used to fix, insulate and conduct heat the welding portion 213a, the first conductive member 24 and the first conductive sheet 52.
  • the second thermally conductive layer 102 is formed by pouring the insulating material into the battery pack 100 and then solidifying it.
  • the second thermal conductive layer 102 contains at least one of potting glue and foam glue.
  • the second thermal conductive layer 102 is formed by pouring potting glue into the battery pack 100 and then solidifying it.
  • second thermal conductive layer 102 Formed by foaming with styrofoam.
  • the second thermal conductive layer 102 contains resin. After the resin is heated and melted, the flowable resin is disposed between the first insulating member 60 and the first adapter plate 50 by pouring and then solidified.
  • the second thermal conductive layer 102 is formed by using an injection molding process to place a flowable resin between the cell housing 211 and the first adapter plate 50 and then solidify it.
  • the second thermal conductive layer 102 fills the gap between the first insulating member 60 and the first adapter plate 50 , strengthens the insulation protection of the first insulating member 60 and the first adapter plate 50 , and restricts foreign matter such as water and dust from entering the first insulation. between the component 60 and the first adapter plate 50 .
  • the first connecting member 30 is disposed on a side of the first insulating member 60 away from the first adapter plate 50 , and the heat of the electrode terminal 213 is transferred to the second thermal conductive layer 102 through the first thermal conductive layer 101 , and then from there.
  • the second thermally conductive layer 102 is transferred to the first connector 30 .
  • a third thermal conductive layer (not shown) is provided between the first insulating member 60 and the first connecting member 30.
  • the second thermal conductive layer 102 is transferred to the third thermal conductive layer, and the third thermal conductive layer is transferred to the first thermal conductive layer.
  • the first connector 30 dissipates heat from the first row of battery core groups 20a through the connector 30. By adding a third thermal conductive layer, the efficiency of heat transfer from the battery core 21 to the first connector 30 can be improved.
  • the third thermal conductive layer includes thermal conductive glue.
  • the first body 61 is provided with a first through hole 61 a, and the first through hole 61 a penetrates the first body 61 .
  • the flowing thermally conductive insulating material flows between the first insulating member 60 and the first connecting member 30 through the first through hole 61a.
  • the insulating material of the third thermal conductive layer is poured into the battery pack 100 and then solidified.
  • the third thermal conductive layer includes at least one of potting glue and foam glue.
  • the third thermal conductive layer is formed by pouring potting glue into the battery pack 100 and then solidifying it.
  • the third thermal conductive layer is formed by foaming foam glue.
  • the third thermally conductive layer contains resin.
  • the flowable resin is disposed between the first insulating member 60 and the first connecting member 30 by pouring and then solidified.
  • the third thermally conductive layer is formed by using an injection molding process to place the flowable resin between the first insulating member 60 and the first connecting member 30 and then solidifying it.
  • the third thermally conductive layer fills the first insulating member 60 and the first connecting member.
  • the gap 30 strengthens the insulation protection of the first insulating member 60 and the first connecting member 30 and restricts water, dust and other foreign matter from entering between the first insulating member 60 and the first connecting member 30 .
  • the first thermal conductive layer 101, the second thermal conductive layer 102 and the third thermal conductive layer are solidified and formed from the same material.
  • a quick-curing, quick-drying insulating material such as quick-drying glue or foam glue, is injected into the fifth opening 611, the sixth opening 613, and the seventh opening 615.
  • the first convex portion 612 , the second convex portion 614 and the third convex portion 616 restrict the insulating material from flowing to other positions of the first body 61 , and the solidified insulating material closes the fifth opening 611 , the sixth opening 613 and the seventh opening 615 , then assemble the battery pack 100 as shown in Figure 10 and invert it in the direction opposite to the third direction Z, and then inject it through the glue filling channel.
  • the insulating material flows between the battery core case 211 and the first adapter plate 50 , and can flow to the first insulation through the first communication hole 511 , the second communication hole 512 and the third communication hole 513 between the first insulating member 60 and the first connecting member 30 through the first through hole 61a.
  • the flowable insulating material between the first insulating member 60 and the first connecting member 30 is cured to form a third thermal conductive layer, and the flowable insulating material between the first insulating member 60 and the first adapter plate 50 is cured to form a third thermal conductive layer.
  • the flowable insulating material between the cell housing 211 and the first adapter plate 50 is cured to form the first thermal conductive layer 101.
  • the gap between the cells 21 can be used as a glue filling channel.
  • the first thermal conductive layer 101, the second thermal conductive layer 102 and the third thermal conductive layer use the same insulating material, and the first thermal conductive layer 101, the second thermal conductive layer 101 and the second thermal conductive layer are formed through a single injection process. Thermal conductive layer 102 and the third thermal conductive layer facilitate production.
  • the projection of the first through hole 61a overlaps the projection of the electrode terminal 213, which facilitates the flow of thermally conductive insulating material from the first through hole 61a into the first insulating member 60 and the first connecting member 30 between.
  • a first protrusion 61b is provided on the side of the first main body 61 facing the first adapter plate 50 .
  • the first bump 61b can be in contact with the first adapter plate 50 and supported by the first bump 61b, so that the first insulating member 60 and the first adapter plate There is a gap between 50 to accommodate the second thermal conductive layer 102 . It can be understood that by adjusting the length of the first bump 61b along the third direction Z, the gap size between the first insulating member 60 and the first adapter plate 50 can be adjusted, and thereby the gap between the first insulating member 60 and the first adapter plate 50 can be adjusted. The amount of second thermally conductive layer 102 between adapter plates 50 .
  • the battery pack 100 further includes a second adapter plate 70, and the second adapter plate 70 is connected to the second row of battery packs 20b.
  • a plurality of second conductive sheets 71 are provided on the side of the second adapter plate 70 away from the battery core 21.
  • the second adapter plate 70 has the same sets of holes as the first adapter plate 50. The first holes of the adjacent battery cores 21
  • the terminal 213b passes through the second adapter plate 70
  • the second terminal 213c of the other battery core 21 passes through the second adapter plate 70
  • the welding portion 213a of the first terminal 213b and the welding portion 213a of the second terminal 213c are stacked on each other.
  • Welded to the second conductive sheet 71 Welding includes laser welding, ultrasonic welding, etc.
  • the welding portion 213a and the second conductive sheet 71 can also be connected through other connection methods such as conductive glue.
  • the second adapter board 70 includes a circuit board.
  • the second adapter board 70 includes a printed circuit board (PCB), and a plurality of wires (not shown) are provided on the second adapter board 70 .
  • the second adapter board 70 includes a flexible circuit board (FPC, Flexible Printed Circuit).
  • the battery pack 100 further includes a second electrical connection part 72 connected to the second adapter plate 70 .
  • the second electrical connection part 72 includes a second conductive part 721 and a second insulating part 722 .
  • the second insulating part 722 is sleeved on the second conductive part 721, and the second insulating part 722 extends from both ends of the second conductive part 721.
  • One end of the second conductive part 721 is connected to the second conductive sheet 71, and the other end is connected to the circuit board 40.
  • the second conductive part 721 and the second conductive sheet 71 have an integrated structure.
  • the second adapter board 70 is also provided with a second sampling wire harness 73 , and the second sampling wire harness 73 is connected to the circuit board 40 .
  • the second sampling wire harness 73 can collect current, voltage, temperature and other information of the battery core 21 .
  • the battery pack 100 further includes a second insulating member 80 .
  • the second insulating member 80 is disposed on a side of the second conductive sheet 71 away from the battery core 21 to insulate and protect the second conductive sheet 71 and the electrode terminal 213 .
  • the second insulation member 80 includes a second main body 81 and a second side plate 82 extending from an edge of the second main body 81 .
  • the projection of the second adapter plate 70 overlaps with the projection of the second body 81 .
  • the projection of the second adapter plate 70 is located within the projection of the second body 81 so that the second body 81 covers the second conductive part 721 and the electrode terminal 213 .
  • the projection of the second side plate 82 overlaps the projection of the second adapter plate 70 . Further, along the first direction X or the second direction Y, the projection of the second conductive sheet 71 is located within the projection of the second side plate 82 .
  • the second body 81 is provided with an eighth opening 811 , and along the third direction Z, the eighth opening 811 penetrates the surface of the second body 81 .
  • the second electrical connection portion 72 extends through the eighth opening 811 to the side of the second body 81 away from the second adapter plate 70 .
  • the second body 81 is provided with a fourth protrusion 812 , which is provided at the edge of the eighth opening 811 , and the second electrical connection portion 72 is limited by the fourth protrusion 812 .
  • the projection of the second conductive portion 721 is located within the projection of the fourth convex portion 812 .
  • the fourth protruding portion 812 insulates the end of the second conductive portion 721 extending out of the second insulating portion 722 , thereby reducing the risk of short circuiting in the portion of the second conductive portion 721 extending out of the second insulating portion 722 .
  • the projection of the second insulating part 722 overlaps the projection of the fourth convex part 812, further improving the insulation of the extended portion of the second conductive part 721.
  • the second body 81 is provided with a ninth opening 813 , and along the third direction Z, the ninth opening 813 penetrates the surface of the second body 81 .
  • the first conductive member 24 passes through the ninth opening 813 and is connected to the second conductive sheet 71.
  • the second body 81 is provided with a fifth protrusion 814.
  • the fifth protrusion 814 is located at the edge of the ninth opening 813, along the edge of the ninth opening 813.
  • the projection of the first conductive member 24 overlaps with the projection of the fifth protrusion 814 , and the first conductive member 24 is limited and insulated by the fifth protrusion 814 .
  • Part of the structure of the fifth protrusion 814 is located between the first conductive member 24 and the first connecting member 30 , thereby reducing the risk of a short circuit between the first conductive member 24 and the first connecting member 30 .
  • the second body 81 is provided with a tenth opening 815 , and the tenth opening 815 penetrates the surface of the second body 81 .
  • a sixth protrusion 816 is provided on the edge of the tenth opening 815 .
  • the second sampling wire harness 73 passes through the second body 81 through the tenth opening 815 and is connected to the circuit board 40 .
  • a fourth thermal conductive layer (not shown) is provided between the battery case 211 and the second adapter plate 70 .
  • Conduct heat is provided between the battery case 211 and the second adapter plate 70 .
  • the fourth thermally conductive layer is formed by pouring an insulating material into the battery pack 100 and then solidifying it.
  • the fourth thermal conductive layer includes at least one of potting glue and foam glue.
  • the fourth thermal conductive layer is formed by pouring potting glue into the battery pack 100 and then solidifying it.
  • the fourth thermal conductive layer is formed by foaming foam glue.
  • the fourth thermally conductive layer contains resin. After the resin is heated and melted, the flowable resin is placed between the battery case 211 and the second adapter plate 70 by pouring and then solidified.
  • the fourth thermal conductive layer is formed by using an injection molding process to dispose flowable resin between the cell housing 211 and the second adapter plate 70 and then solidify it.
  • the fourth thermal conductive layer fills the gap between the battery case 211 and the second adapter plate 70, strengthens the insulation protection of the electrode terminal 213 and the second adapter plate 70, and restricts water, dust and other foreign matter from entering the battery case 211 and the second adapter plate 70. between the second adapter boards 70 .
  • a fifth thermal conductive layer (not shown) is disposed between the second insulating member 80 and the second adapter plate 70 .
  • the projections of the fifth thermally conductive layer overlap, and the fifth thermally conductive layer is used to fix, insulate and conduct heat to the welding portion 213a, the first conductive member 24 and the second conductive sheet 71.
  • the fifth thermally conductive layer is formed by pouring an insulating material into the battery pack 100 and then solidifying it.
  • the fifth thermal conductive layer includes at least one of potting glue and foam glue.
  • the fifth thermally conductive layer is formed by pouring potting glue into the battery pack 100 and then solidifying it.
  • the fifth thermal conductive layer is formed by foaming foam glue.
  • the fifth thermally conductive layer contains resin. After the resin is heated and melted, the flowable resin is placed between the second insulating member 80 and the second adapter plate 70 by pouring and then solidified.
  • the fifth thermally conductive layer is formed by using an injection molding process to dispose flowable resin between the second insulating member 80 and the second adapter plate 70 and then solidify it.
  • the fifth thermal conductive layer fills the gap between the second insulating member 80 and the second adapter plate 70 The gap strengthens the insulation protection between the second insulating member 80 and the second adapter plate 70 and restricts water, dust and other foreign matter from entering between the second insulating member 80 and the second adapter plate 70 .
  • the first connecting member 30 is disposed on a side of the second insulating member 80 away from the second adapter plate 70 , and the heat of the electrode terminal 213 is transferred to the fifth thermal conductive layer through the fourth thermal conductive layer, and from the fifth thermal conductive layer The layer is passed to the first connector 30 .
  • a sixth thermal conductive layer (not shown) is provided between the second insulating member 80 and the first connecting member 30. The heat of the electrode terminal 213 is transferred to the fifth thermal conductive layer through the fourth thermal conductive layer, and then from the fifth thermal conductive layer.
  • the thermal conductive layer is transferred to the sixth thermal conductive layer, and the sixth thermal conductive layer is transferred to the first connector 30, and then the first connector 30 dissipates heat to the second row of battery core groups 20b.
  • the sixth thermal conductive layer includes thermal conductive glue.
  • the second body 81 is provided with a second through hole 81a, and the second through hole 81a penetrates the second body 81.
  • the flowing thermally conductive insulating material flows between the second insulating member 80 and the first connecting member 30 through the second through hole 81a.
  • the insulating material of the sixth thermal conductive layer is poured into the battery pack 100 and then solidified.
  • the sixth thermal conductive layer includes at least one of potting glue and foam glue.
  • the sixth thermally conductive layer is formed by pouring potting glue into the battery pack 100 and then solidifying it.
  • the sixth thermal conductive layer is formed by foaming foam glue.
  • the sixth thermally conductive layer contains resin.
  • the flowable resin is disposed between the second insulating member 80 and the first connecting member 30 by pouring and then solidified.
  • the sixth thermally conductive layer is formed by using an injection molding process to dispose the flowable resin between the second insulating member 80 and the first connecting member 30 and then solidify it.
  • the sixth thermally conductive layer fills the second insulating member 80 and the first connecting member.
  • the gap 30 strengthens the insulation protection between the second insulating member 80 and the first connecting member 30 and restricts water, dust and other foreign matter from entering between the second insulating member 80 and the first connecting member 30 .
  • the fourth thermal conductive layer, the fifth thermal conductive layer and the sixth thermal conductive layer are solidified and formed from the same material.
  • a quick-curing, quick-drying insulating material such as quick-drying glue or foam glue, is injected into the eighth opening 811 , the ninth opening 813 and the tenth opening 815 , through the fourth convex part 812 , the fifth convex part 814 and the first
  • the six protrusions 816 restrict the insulating material from flowing to other positions of the second body 81 .
  • the cured insulating material closes the eighth opening 811, the ninth opening 813 and the tenth opening 815, and then the battery pack 100 is assembled as shown in FIG.
  • the flowing insulating material flows between the cell case 211 and the second adapter plate 70 and can flow to the second insulating member 80 and the second adapter plate 70 through the holes in the second adapter plate 70 between the second insulating member 80 and the first connecting member 30 through the second through hole 81a.
  • the flowable insulating material between the second insulating member 80 and the first connecting member 30 is cured to form a sixth thermal conductive layer.
  • the second insulating member 80 and the second adapter plate The flowable insulating material between 70 is cured to form a fifth thermal conductive layer, and the flowable insulating material between the cell housing 211 and the second adapter plate 70 is cured to form a fourth thermal conductive layer.
  • the gap between the cells 21 can be used as a glue filling channel.
  • the fourth thermal conductive layer, the fifth thermal conductive layer and the sixth thermal conductive layer use the same insulating material.
  • the fourth thermal conductive layer, the fifth thermal conductive layer and the sixth thermal conductive layer are formed.
  • the sixth thermal conductive layer facilitates production.
  • the projection of the second through hole 81a overlaps the projection of the electrode terminal 213, which facilitates the flow of thermally conductive insulating material from the second through hole 81a into the second insulating member 80 and the first connecting member 30 between.
  • a second protrusion 81b is provided on the side of the second main body 81 facing the second adapter plate 70 .
  • the second bump 81b can be in contact with the second adapter plate 70 and supported by the second bump 81b, so that the second insulating member 80 and the second adapter plate There is a gap between 70 to accommodate the fifth thermal conductive layer. It can be understood that by adjusting the length of the second bump 81b along the third direction Z, the gap size between the second insulating member 80 and the second adapter plate 70 can be adjusted, and further the gap between the second insulating member 80 and the second adapter plate 70 can be adjusted. The amount of the fifth thermally conductive layer between the adapter plates 70 .
  • the first thermal conductive layer 101, the second thermal conductive layer 102, the third thermal conductive layer, the fifth thermal conductive layer, the sixth thermal conductive layer and the seventh thermal conductive layer include thermal conductive glue and thermal conductive pads.
  • the first connecting member 30 includes a first part 31 and a second part 32 , and the first part 31 is connected to the second part 32 .
  • the first channel 30a and the second connection hole 30b are provided in the first part 31.
  • the first channel 30a penetrates the first portion 31 along the first direction X.
  • the first part 31 includes a first surface 311 and a second surface 312 arranged along the second direction Y. Along the second direction Y, the projection of the first surface 311 overlaps with the projection of the first row of battery cells 20a, and the projection of the second surface 312 overlaps with the projection of the second row of battery cells 20b, and is conducted through the first surface 311.
  • the second surface 312 conducts the heat of the battery core group 20a in the first row to the battery core group 20b in the second row for heat dissipation.
  • the side surfaces of the battery pack 20a can conduct heat with the first surface 311, and the side surfaces of the second row of battery packs 20b can conduct heat with the second surface 312, further improving heat dissipation.
  • a thermally conductive adhesive is provided between the first part 31 and the first row of battery core groups 20a to facilitate rapid conduction of heat to the first connector 30 and further improve heat dissipation. In one embodiment, a thermally conductive adhesive is provided between the first part 31 and the second row of battery core groups 20b to facilitate rapid conduction of heat to the first connector 30. Further improve heat dissipation.
  • the first part 31 is also provided with a second channel 30c, and the second channel 30c runs through the first part 31 along the first direction X.
  • the first channel 30a and the second channel 30c are spaced apart along the third direction Z.
  • the second channel 30c By providing the second channel 30c, the first channel 30a and the second channel 30c can jointly dissipate heat from the battery core 21, further improving the heat dissipation efficiency.
  • the number of channels on the first part 31 can be adjusted according to the heat dissipation requirements and the length of the first part 31 along the third direction Z. The longer the length of the first part 31 , the more channels can be provided. It can be understood that as the number of channels increases, the number of openings on the first housing 11 and the second housing 12 also needs to increase.
  • the second part 32 is disposed perpendicularly to the first part 31 , and the second part 32 is disposed on a side of the first insulating member 60 away from the first adapter plate 50 .
  • the projection of the first conductive sheet 52 and the projection of the first through hole 61 a are both located within the projection of the second part 32 .
  • a third thermal conductive layer is provided between the second part 32 and the first body 61. The heat of the first row of battery core groups 20a is conducted to the second part 32 through the third thermal conductive layer, and the second part 32 is conducted to the second part 32. The heat on the first part 31 is taken away by the air flowing in the first channel 30a, thereby dissipating heat to the first row of battery core groups 20a.
  • a first notch 321 is provided on the side of the second part 32 connected to the first part 31 , and the first conductive member 24 is connected to the first conductive piece 52 through the first notch 321 .
  • the first connecting member 30 further includes a third part 33 , and the third part 33 is connected to the first part 31 .
  • the third part 33 is perpendicular to the first part 31 .
  • the third part 33 is provided on the side of the second insulating member 80 away from the second adapter plate 70 .
  • the projection of the second conductive sheet 71 and the projection of the second through hole 81 a are both located within the projection of the third part 33 .
  • a sixth thermal conductive layer is provided between the third part 33 and the second body 81.
  • the heat of the second row of battery core groups 20b is conducted to the third part 33 through the sixth thermal conductive layer, and the third part 33 is conducted to the third part 33.
  • One part 31 takes away the heat on the first part 31 through the air flowing in the first channel 30a, thereby dissipating heat to the second row of battery packs 20b.
  • a second notch 331 is provided on the side of the third part 33 connected to the first part 31 , and the first conductive member 24 is connected to the second conductive piece 71 through the second notch 331 .
  • the first conductive member 24 connects the first conductive sheet 52 and the second conductive sheet 71 , when viewed along the first direction X, the first portion 31 is partially located in the second recess 241 .
  • the first part 31, the second part 32 and the third part 33 are of an integrated structure.
  • this application also provides an electrical device 200 using the above-mentioned battery pack 100.
  • the electrical equipment 200 of the present application may be, but is not limited to, a drone, a backup power supply, Electric cars, electric motorcycles, electric power-assisted bicycles, power tools, large household batteries, etc.

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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)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

本申请的实施例提供了一种电池组和用电设备，电池组包括壳体组件、第一连接件和电芯组件。壳体组件具有第一空间，壳体组件设有连通第一空间的第一开口和第二开口。第一连接件容纳于第一空间。第一连接件设有第一通道。第一开口和第二开口通过第一通道连通。电芯组件的至少部分设于第一空间。沿第一方向，第一开口的投影和第二开口的投影与电芯组件的投影相离。其中，第一方向为电芯组件中电芯堆叠方向。上述电池组的电芯组件的热量通过外部空气在第一通道内流动，并散到外部环境中，提升对电芯组件的散热效率。

Description

电池组和用电设备 技术领域
本申请涉及储能技术领域，尤其涉及一种电池组和用电设备。
背景技术
电池组在使用时，电池组会发出大量的热量，为避免电池组温度过高需要对电池组进行散热，目前传统的散热方式是在电芯间增加散热件，但该散热方式散热速度慢，且对电池组的散热有限，对使用电池组的电池设备也有影响。
发明内容
有鉴于此，有必要提供一种电池组和用电设备，可提升对电池的散热效率。
本申请的实施例提供了一种电池组，包括壳体组件、第一连接件和电芯组件。壳体组件具有第一空间，壳体组件设有连通第一空间的第一开口和第二开口。第一连接件容纳于第一空间。第一连接件设有第一通道。第一开口和第二开口通过第一通道连通。电芯组件的至少部分设于第一空间。沿第一方向，第一开口的投影和第二开口的投影与电芯组件的投影相离。其中，第一方向为电芯组件中电芯堆叠方向。上述电池组的电芯组件的热量通过外部空气在第一通道内流动，并散到外部环境中，提升对电芯组件的散热效率。
可选地，在本申请的一些实施例中，壳体组件包括第一壳体。第一壳体包括第一壁、第一侧壁、第二侧壁、第三侧壁和第四侧壁。第一壁连接第一侧壁、第二侧壁、第三侧壁和第四侧壁并形成第一空间。第一开口设于第一侧壁。第二开口设于第二侧壁。第一侧壁和第二侧壁沿第一方向排列设置。第三侧壁和第四侧壁沿第二方向排列设置。第一方向垂直于第二方向。
可选地，在本申请的一些实施例中，沿第一方向，第一开口的投影与第二开口的投影有重叠，可减小第一通道的路径，使外部空气快速通过第一通道，带走电芯组件的热量，提升散热效率。
可选地，在本申请的一些实施例中，沿第一方向，第一开口的投影与第二开口的投影重叠时，第一通道的距离最短且第一开口和第二开口的进出风量大，进一步提升散热。
可选地，在本申请的一些实施例中，第一连接件包括第一部分。第一通道设于第一部分。沿第二方向，第一部分位于第三侧壁和第四侧壁之间，通过第一部分与电芯组件热连接，电芯组件的热量传递至第一部分，并通过外部空气在第一通道内流动，并散到外部环境中，提升对电芯组件的散热效率。
可选地，在本申请的一些实施例中，第一连接件包括连接第一部分的第二部分。沿第三方向，电芯组件位于第一壁和第二部分之间。其中，第三方向同时垂直于第一方向和第二方向。电芯组件的部分热量传导至第一壁，通过第一壁将部分热量散到外部环境中，电芯组件的部分热量传导至第二部分，第二部分传导至第一部分，再通过第一通道内流动的空气带走第一部分上的热量，提升散热。
可选地，在本申请的一些实施例中，电芯组件包括第一列电芯组。第一列电芯组包括多个沿第一方向堆叠设置的电芯。电芯包括电芯壳体、设于电芯壳体内的电极组件以及连接至电极组件并且从电芯壳体引出的电极端子。
可选地，在本申请的一些实施例中，电芯组件还包括第二列电芯组。第一列电芯组和第二列电芯组沿第二方向排列设置。沿第二方向，第一部分设于第一列电芯组和第二列电芯组之间，通过第一部分对第一列电芯组和第二列电芯组进行散热。
可选地，在本申请的一些实施例中，第一部分包括沿第二方向设置的第一表面和第二表面。沿第二方向，第一表面的投影与第一列电芯组的投影有重叠，第二表面的投影与第二列电芯组的投影有重叠，通过第一表面传导第一列电芯组的热量，第二表面传导第二列电芯组的热量进行散热。
可选地，在本申请的一些实施例中，沿第一方向，第一列电芯组的投影位于第一表面的投影内。第二列电芯组的投影位于第二表面的投影内，使第一列电芯组的侧面均能与第一表面之间进行导热，以及第二列电芯组的侧面均能与第二表面之间进行导热，进一步提升散热。
可选地，在本申请的一些实施例中，第一部分与第一列电芯组之间设有导热胶，便于将热量快速传导至第一连接件，进一步提升散热。
可选地，在本申请的一些实施例中，第一部分与第二列电芯组之间设有导热胶，便于将热量快速传导至第一连接件，进一步提升散热。
可选地，在本申请的一些实施例中，第一连接件还包括第三部分。第三部分连接第一部分。沿第三方向，第一列电芯组位于第二部分和第一壁之间。第二列电芯组位于第三部分和第一壁之间。第二列电芯组的部分热量传导至第一壁，通过第一壁将部分热量散到外部环境中，第二列电芯组的部分热量传导至第三部分，第三部分传导至第一部分，再通过第一通道内流动的空气带走第一部分上的热量，提升散热。
可选地，在本申请的一些实施例中，第一部分还设有第二通道。第二通道沿第一方向贯穿第一部分。第一通道与第二通道沿第三方向间隔设置。通过设置第二通道，可以使第一通道和第二通道一同对电芯进行散热，进一步提升散热效率。
可选地，在本申请的一些实施例中，电池组还包括第一导电件。第二部分设有第一缺口。第三部分设有第二缺口。第一导电件一端连接第一列电芯组，另一端连接第二列电芯组。第一导电件的部分穿设于第一缺口，第一导电件的部分穿设于第二缺口。
可选地，在本申请的一些实施例中，还包括第一绝缘件和第一转接板。第一转接板连接电极端子。第一绝缘件设于第一转接板背离电芯组件的一侧。沿第二方向，第一转接板的投影与第一绝缘件的投影有重叠。电极端子的投影与第一绝缘件的投影有重叠，对第一导电片和电极端子进行绝缘保护。
可选地，在本申请的一些实施例中，第一转接板与电芯壳体之间设有第一导热层。沿第一方向，电极端子的投影与第一导热层的投影有重叠，通过第一导热层对电芯壳体和第一转接板之间的电极端子进行固定、绝缘和导热。
可选地，在本申请的一些实施例中，第一绝缘件和第一转接板之间设有第二导热层。沿第一方向，电极端子的投影与第二导热层的投影有重叠，通过第二导热层对焊接部、第一导电件和第一导电片进行固定、绝缘和导热。
可选地，在本申请的一些实施例中，第一导热层和第二导热层的材料相同，将流动的绝缘材料流入后固化后形成第一导热层和第二导热层。
可选地，在本申请的一些实施例中，第二部分位于第一绝缘件背离第一转接板的一侧。第二部分与第一绝缘件之间设有第三导热层。第二导热层传递至 第三导热层，由第三导热层传递至第一连接件，再由第一连接件对第一列电芯组进行散热，通过增加第三导热层，可提升电芯的热量传递至第一连接件的效率。
本申请一实施例还提供了一种用电设备，包括上述任意实施例中的电池组。
上述电池组和用电设备的电芯组件的热量通过外部空气在第一通道内流动，并散到外部环境中，提升对电芯组件的散热效率。
附图说明
图1示出了一些实施例中电池组的结构示意图。
图2示出了一些实施例中电池组另一视角的结构示意图。
图3示出了一些实施例中电池组的分解示意图。
图4示出了一些实施例中壳体组件的分解示意图。
图5示出了一些实施例中壳体组件的剖面示意图。
图6示出了图1中电池组沿II-II的剖面示意图。
图7示出了一些实施例中第一列电芯组和第一转接板的结构示意图。
图8示出了一些实施例中电芯的结构示意图。
图9示出了一些实施例中电芯的分解示意图。
图10示出了一些实施例中电池组除去壳体组件后的结构示意图。
图11示出了图10中电池组除去第一连接件结构示意图。
图12示出了一些实施例中电池组除去壳体组件后的分解示意图。
图13示出了一些实施例中第一绝缘件的结构示意图。
图14示出了一些实施例中第二绝缘件的结构示意图。
图15示出了图1中电池组沿III-III的剖面示意图。
图16示出了图15IV部分的放大示意图。
图17示出了另一些实施例中电池组沿III-III的剖面示意图。
图18示出了图17V部分的放大示意图。
图19示出了一些实施例中第一连接件的结构示意图。
图20示出了一些实施例中第一连接件另一视角的结构示意图。
图21示出了一些实施例中用电设备的结构示意图。
主要元件符号说明：
电池组                           100
壳体组件                         10
第一壳体                         11
第一开口                         11a
第二开口                         11b
第一壁                           111
第一侧壁                         112
第一连接孔                       1121
第二侧壁                         113
第三侧壁                         114
第四侧壁                         115
第二壳体                         12
第一孔                           12a
固定凸部                         12b
第一凹部                         12c
第二壁                           121
第五侧壁                         122
第三开口                         122a
第六侧壁                         123
第四开口                         123a
第七侧壁                         124
第八侧壁                         125
第三壳体                         13
支架                             14
密封件                           15
凹槽                             151
第一密封部分                     15a
第二密封部分                     15b
第三密封部分                    15c
电芯组件                        20
第一列电芯组                    20a
第二列电芯组                    20b
电芯                            21
第一侧面                        21a
第二侧面                        21b
第三侧面                        21c
第四侧面                        21d
第五侧面                        21e
第六侧面                        21f
电芯壳体                        211
第一部分                        211a
第二部分                        211b
第一外壳                        2111
第二外壳                        2112
第一延伸部                      2113
第二延伸部                      2114
第一密封部                      2115
第二密封部                      2116
电极组件                        212
电极端子                        213
焊接部                          213a
第一端子                        213b
第二端子                        213c
第一导热件                      22a
第二导热件                      22b
弹性件                          23
第一导电件                      24
第二凹部                        241
第一连接件                      30
第一通道                        30a
第二连接孔                      30b
第二通道                        30c
第一部分                        31
第一表面                        311
第二表面                        312
第二部分                        32
第一缺口                        321
第三部分                        33
第二缺口                        331
电路板                          40
第一转接板                      50
孔                              51
第一连通孔                      511
第二连通孔                      512
第三连通孔                      513
第一导电片                      52
第一电连接部                    53
第一导电部                      531
第一绝缘部                      532
第一采样线束                    54
第一绝缘件                      60
第一主体                        61
第一通孔                        61a
第一凸块                        61b
第五开口                        611
第一凸部                        612
第六开口                        613
第二凸部                        614
第七开口                        615
第三凸部                        616
第一导热层                      101
第二导热层                      102
第一侧板                        62
第二转接板                      70
第二导电片                      71
第二电连接部                    72
第二导电部                      721
第二绝缘部                      722
第二采样线束                    73
第二绝缘件                      80
第二主体                        81
第二通孔                        81a
第二凸块                        81b
第八开口                        811
第四凸部                        812
第九开口                        813
第五凸部                        814
第十开口                        815
第六凸部                        816
第二侧板                        82
第一方向                        X
第二方向                        Y
第三方向                        Z
如下具体实施例将结合上述附图进一步说明本申请。
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描 述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。
当一个组件被认为是“设于”另一个组件，它可以是直接设在另一个组件上或者可能同时存在居中的组件。当一个组件被认为是“连接”另一个组件，它可以是直接连接在另一个组件上或者可能同时存在居中的组件。
可以理解，术语“垂直”用于描述两个部件之间的理想状态。实际生产或使用的状态中，两个部件之间可以存在近似于垂直的状态。举例来说，结合数值描述，垂直可以指代两直线之间夹角范围在90°±10°之间，垂直也可以指代两平面的二面角范围在90°±10°之间，垂直还可以指代直线与平面之间的夹角范围在90°±10°之间。被描述“垂直”的两个部件可以不是绝对的直线、平面，也可以大致呈直线或平面，从宏观来看整体延伸方向为直线或平面即可认为部件为“直线”或“平面”。
除非另有定义，本文术语“多个”在用于描述部件的数量时，具体是指该部件为两个或者两个以上。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。本文所使用的术语“或/及”包括一个或多个相关的所列项目的任意的和所有的组合。
本申请的实施例提供了一种电池组，包括壳体组件、第一连接件和电芯组件。壳体组件具有第一空间，壳体组件设有连通第一空间的第一开口和第二开口。第一连接件容纳于第一空间。第一连接件设有第一通道。第一开口和第二开口通过第一通道连通。电芯组件的至少部分设于第一空间。沿第一方向，第一开口的投影和第二开口的投影与电芯组件的投影相离。其中，第一方向为电芯组件中电芯堆叠方向。上述电池组的电芯组件的热量通过外部空气在第一通道内流动，并散到外部环境中，提升对电芯组件的散热效率。
下面结合附图，对本申请的一些实施方式作详细说明。在不冲突的情况下，下述的实施方式及实施方式中的特征可以相互组合。
请参阅图1-图5，本申请一实施例提供了一种电池组100，包括壳体组件10、电芯组件20和第一连接件30。壳体组件10具有第一空间，电芯组件20和第一连接件30均设于第一空间内。壳体组件10还设有连通第一空间的第一开口11a和第二开口11b，第一连接件30设有第一通道30a，第一通道30a的一 端连接第一开口11a，另一端连接第二开口11b。电芯组件20的部分面朝向第一连接件30，能够通过第一连接件30散热，外部空气能够从第一开口11a进入第一通道30a，并从第二开口11b排出，或者外部空气能够从第二开口11b进入第一通道30a，并从第一开口11a排出，电芯组件20的部分热量通过外部空气在第一通道30a内流动，并散到外部环境中。其余部分面朝向壳体组件10的内壁，通过壳体组件10的内壁将部分热量散到外部环境中，进而使电芯组件20的每个面均能与外界进行传热，提升对电芯组件20的散热效率。
在一实施例中，电池组100可以利用外部的空气，通过空气的流动带走电芯组件20的热量。在一实施例中，当电池组100处于静态时，如电池组100在充电时，可以利用自然风或者外部风冷设备进行散热。在一实施例中，电池组100可以用于使用时处于动态的设备上，例如无人机、电动助力车等，由于设备移动时，空气流动速度更快，可以实现电池组100的快速散热。
请参阅图3、图4、图5和图6，在一实施例中，壳体组件10包括第一壳体11，第一壳体11设有第一空间，第一壳体11包括第一壁111、第一侧壁112、第二侧壁113、第三侧壁114和第四侧壁115。第一侧壁112和第二侧壁113均连接第一壁111，且第一侧壁112和第二侧壁113排列设置。第三侧壁114和第四侧壁115均连接第一壁111，且第三侧壁114和第四侧壁115排列设置。第三侧壁114还连接第一侧壁112和第二侧壁113，第四侧壁115还连接第三侧壁114和第四侧壁115，并形成第一空间。
在一实施例中，第一壳体11和第一连接件30包含导热材料，可提升散热性能。可选的，第一壳体11和第一连接件30包括金属导热材料和导热的绝缘材料，绝缘材料可覆盖在金属导热材料外表面。可选的，第一壳体11和第一连接件30的金属导热材料包括铝。可选的，第一壳体11和第一连接件30由金属材料制成。
为了更好的对电池组100的结构进行说明，将结合X、Y、Z坐标轴对电池组100的结构进行叙述，X、Y、Z坐标轴两两垂直,定义X方向为第一方向，Y方向为第二方向，Z方向为第三方向，其中，第一方向X为第一侧壁112和第二侧壁113排列设置的方向，第二方向Y为第三侧壁114和第四侧壁115排列设置的方向，第三方向Z为垂直于第一壁111表面的方向，第一方向X同时垂直于第二方向Y和第三方向Z。
在一实施例中，第一开口11a贯穿第一侧壁112，第二开口11b贯穿第二侧壁113。在一实施例中，沿第一方向X，第一开口11a的投影与第二开口11b的投影有重叠。可选的，沿第一方向X，第一开口11a的投影与第二开口11b的投影部分重叠。可选的，沿第一方向X，第一开口11a的投影与第二开口11b的投影重叠。第一侧壁112连接第一连接件30，第二侧壁113连接第一连接件30，使第一通道30a的一端连接的第一开口11a，另一端连接第二开口11b。当沿第一方向X，第一开口11a的投影与第二开口11b的投影重叠时，第一通道30a的距离最短且第一开口11a和第二开口11b的进出风量大，进一步提升散热。当电池组100沿与第一方向X相反移动或外部风冷设备的风向沿第一方向X时，第一开口11a为进风口，第二开口11b为出风口，空气从第一开口11a进入经过第一通道30a，并从第二开口11b排出，提升散热。可以理解的是，当电池组100沿第一方向X移动或外部风冷设备的风向朝向与第一方向X相反方向时，第二开口11b为进风口，第一开口11a为出风口。在另一实施例中，第一开口11a设于第三侧壁114上，第二开口11b设于第四侧壁115上。
在另一实施例中(图未示)，第一开口11a贯穿第一壁111，第二开口11b贯穿第一侧壁112和第二侧壁113。第一通道30a的一端连接第一开口11a，另外一端连接第一侧壁112上的第二开口11b和第二侧壁113上的第二开口11b，空气能够从第一壁111上的第一开口11a进入，经过第一通道30a，从第一侧壁112上的第二开口11b和第二侧壁113上的第二开口11b排出，通过增加出风口，提升出风量，提升散热。空气也能够从第一侧壁112上的第二开口11b和第二侧壁113上的第二开口11b中的一个第二开口11b进入，并从另一个第二开口11b以及第一开口11a排出，提升散热。
在一实施例中，第一侧壁112和第二侧壁113设有多个第一连接孔1121，第一连接件30沿第一方向X设置的两个侧面均设有多个第二连接孔30b，紧固件(图未示)，如螺丝等，穿过第一连接孔1121和第二连接孔30b，将第一连接件30固定连接在第一侧壁112和第二侧壁113上。
在一实施例中，壳体组件10还包括第二壳体12，第二壳体12具有第二空间，第一壳体11设于第二壳体12内，第二壳体12用于提升电池组100的抗冲击性，降低第一壳体11受到冲击后变形刺伤电芯组件20的风险。可选的，第二壳体12包括塑胶壳体。可选的，第二壳体12通过注塑工艺形成。
在一实施例中，第二壳体12包括第二壁121、第五侧壁122、第六侧壁123、第七侧壁124和第八侧壁125。第五侧壁122和第六侧壁123均连接第二壁121，且第五侧壁122和第六侧壁123沿第一方向X排列设置。第七侧壁124和第八侧壁125均连接第二壁121，且第七侧壁124和第八侧壁125沿第二方向Y排列设置。第七侧壁124还连接第五侧壁122和第六侧壁123，第八侧壁125还连接第五侧壁122和第六侧壁123，并形成第二空间。第二壁121、第五侧壁122、第六侧壁123、第七侧壁124和第八侧壁125中的至少一个设有第一孔12a，第一壳体11从第一孔12a中露出，便于散热。可选的，第二壁121、第五侧壁122、第六侧壁123、第七侧壁124和第八侧壁125均设有第一孔12a，提升散热，并且多个第一孔12a使第二壳体12呈中网状，减少第二壳体12的耗材，进而减轻第二壳体12的重量，使电池组100更轻量化。可以理解的是，第二壳体12本身也可以对第一壳体11进行散热。
在一实施例中，第五侧壁122设有第三开口122a，第六侧壁123设有第四开口123a。沿第一方向X，第三开口122a和第四开口123a的投影与第一通道30a的投影有重叠。沿第一方向X，第一开口11a的投影与第三开口122a的投影有重叠。可选的，第一开口11a的投影与第三开口122a的投影重叠，可增加进出风的量。沿第一方向X，第二开口11b的投影与第四开口123a的投影有重叠。可选的，第二开口11b的投影与第四开口123a的投影重叠，可增加进出风的量。以电池组100沿与第一方向X相反移动或外部风冷设备的风向沿第一方向X为例，空气通过第三开口122a和第一开口11a进入第一通道30a内，并经过第二开口11b和第四开口123a排出。
在一实施例中，第一壳体11与第二壳体12间隙连接或过盈连接，使第一壳体11的外表面贴合第二壳体12的内表面，便于固定第一壳体11。
在一实施例中，壳体组件10还包括第三壳体13和支架14，支架14连接第一壳体11和第二壳体12，第三壳体13连接支架14，进而将第一壳体11封闭在第二壳体12内。第七侧壁124与第五侧壁122的连接处固定凸部12b，第七侧壁124与第六侧壁123的连接处设有固定凸部12b，第八侧壁125与第五侧壁122连接处设有固定凸部12b，第八侧壁125与第六侧壁123的连接处也设有固定凸部12b，支架14连接第一侧壁112、第二侧壁113、第三侧壁114和第四侧壁115，且支架14与第一壁111沿第三方向Z排列设置。支架14通过 紧固件固定连接在固定凸部12b上，以将第一壳体11限制于第二壳体12内。第三壳体13固定连接支架14背离第二壳体12的一侧。当第二壳体12和\或第三壳体13需要更换时，通过松开紧固件即可拆解更换第二壳体12和\或第三壳体13。
在一实施例中，电池组100还包括电路板40，电路板40设于第三壳体13内。电路板40电连接电芯组件20。可选的，电路板40包括BMS组件(Battery Management System)，具体的，BMS组件包括多个电子元器件，多个电子元器件能够实现对电池的数据采集、控制、保护、通讯、电量计算、信号传输、电能传输等功能。
在一实施例中，壳体组件10还包括密封件15，密封件15连接第一侧壁112、第二侧壁113、第三侧壁114和第四侧壁115背离第一壁111的一侧。当支架14固定连接第二壳体12时，支架14沿第三方向Z压于密封件15。可选的，密封件15为闭环结构，密封件15设有凹槽151，第一侧壁112、第二侧壁113、第三侧壁114和第四侧壁115背离第一壁111的一侧均设于凹槽151内。沿第一方向X，第一侧壁112和第二侧壁113的投影与密封件15的投影有重叠。沿第二方向Y，第三侧壁114和第四侧壁115的投影与密封件15的投影有重叠。
在一实施例中，密封件15包括第一密封部分15a、第二密封部分15b和第三密封部分15c。第一密封部分15a设于第一壳体11的内表面和支架14之间。第二密封部分15b设于第一壳体11的外表面和第二壳体12的内表面之间，第三密封部分15c连接第一密封部分15a和第二密封部分15b，第三密封部分15c位于支架14和第一壳体11之间，支架14可接触连接第三密封部分15c。
在一实施例中，第一密封部分15a与第一壳体11的内表面之间设有第一粘接层(图未示)，第二密封部分15b与第一壳体11的外表面之间设有第一粘接层，通过第一粘接层将密封件15粘接固定于第一壳体11上。可选的，第一粘接层包括密封胶。第一密封部分15a与支架14之间设有第二粘接层(图未示)，第二密封部分15b与第二壳体12的内表面之间设有第二粘接层，第三密封部分15c与支架14之间设有第二粘接层。可选的，第二粘接层包括密封胶。通过设置第二粘接层，加强支架14和第二壳体12与密封件15的连接，降低水分等杂质进入到第一壳体11内导致电池短路的风险。
在一实施例中，第五侧壁122、第六侧壁123、第七侧壁124和第八侧壁 125背离第二壁121的一端均设有第一凹部12c，第二密封部分15b设于第一凹部12c内，通过将第二密封部分15b设于第一凹部12c内，增加了第二密封部分15b与第二壳体12的侧壁之间的间隙的延伸路径，减少水分进入到第一壳体11内，进一步降低电池短路的风险。以第六侧壁123为例，第六侧壁123背离第二壁121的一端沿第一方向X凹陷形成第一凹部12c。沿第二方向Y，第二密封部分15b的投影与第一凹部12c的投影有重叠。可选的，第二密封部分15b的投影位于第一凹部12c的投影内。可以理解的是，第一凹部12c沿第一方向X的深度可为增加的延伸路径。
请参阅图6-图10，在一实施例中，沿第一方向X，第一开口11a和第二开口11b设于电芯组件20的两侧。电芯组件20包括第一列电芯组20a。第一列电芯组20a设于第一侧壁112和第二侧壁113之间，且第一列电芯组20a设于第三侧壁114和部分第一连接件30之间，第一列电芯组20a还设于第一壁111和部分第一连接件30之间。第一列电芯组20a包括多个沿第一方向X堆叠设置的电芯21。电芯21包括电芯壳体211、设于电芯壳体211内的电极组件212以及连接至电极组件212并且从电芯壳体211引出的电极端子213。在一实施例中，电芯壳体211包括第一部分211a和第二部分211b，第一部分211a容纳电极组件212，第二部分211b连接第一部分211a，电极端子213从第二部分211b伸出。
在一实施例中，电芯壳体211包括第一外壳2111和第二外壳2112，第一外壳2111连接第二外壳2112。第一外壳2111和第二外壳2112中的至少一个设有凹部，用以放置电极组件212。第一外壳2111和第二外壳2112沿连接位置(虚线位置)可以进行折叠，使第一外壳2111和第二外壳2112重合，形成第一部分211a，以包覆电极组件212。第一外壳2111的周侧向外延伸形成多个第一延伸部2113，第二外壳2112的周侧向外延伸形成多个第二延伸部2114。第一外壳2111和第二外壳2112沿连接位置折叠后，第一延伸部2113和第二延伸部2114重合并密封连接，形成第二部分211b。第二部分211b包括第一密封部2115和第二密封部2116，第一密封部2115与连接位置相对设置，电极端子213自第一密封部2115伸出第一部分211a。可选的，第二部分211b包括两个第二密封部2116，两个第二密封部2116沿第二方向Y排列设置。可选的，第二部分211b包括一个第一密封部2115，电芯21包括两个电极端子213，两个 电极端子213自第一密封部2115延伸出电芯壳体211。在其他实施例中，第一外壳2111和第二外壳2112非一体设置，第二部分211b包括两个第一密封部2115，两个第一密封部2115沿第三方向Z排列设置，电芯21包括两个电极端子213，其中一个电极端子213自其中一个第一密封部2115延伸出电芯壳体211，另外一个电极端子213自另外一个第一密封部2115延伸出电芯壳体211，两个电极端子213沿第三方向Z排列设置。
在一实施例中，电极组件212包括由正极片、负极片以及隔离膜卷绕形成的卷绕式结构。在另一些实施例中，电极组件212还可以为叠片结构，正极片、隔离膜和负极片依次层叠形成一个电极组件单元，多个电极组件单元再层叠成电极组件212。可选的，电芯壳体211包括铝塑膜。可选的，电芯21包括软包电芯。
在一实施例中，电极端子213具有延伸出电芯壳体211外的焊接部213a，焊接部213a为电极端子213弯折后形成。在一实施例中，电极端子213包括第一端子213b和第二端子213c，第一端子213b和第二端子213c极性相反，第一端子213b和第二端子213c中的一个为正极端子，另一个为负极端子。沿第三方向Z，电芯21的第一端子213b的焊接部213a的投影与相邻电芯21的第二端子213c的焊接部213a的投影至少部分重叠。相邻电芯21的第一端子213b和第二端子213c相向弯折，且第一端子213b的焊接部213a和第二端子213c的焊接部213a相互堆叠连接设置，相邻电芯21串联连接。通过将相邻电芯21的焊接部213a相互连接设置，减少加工工艺步骤。其他实施例中，相邻电芯21可并联连接。
在一实施例中，以单个电芯21为例说明，电芯21包括第一侧面21a、第二侧面21b、第三侧面21c、第四侧面21d、第五侧面21e和第六侧面21f。第一侧面21a和第二侧面21b沿第一方向X排列设置。第三侧面21c和第四侧面21d沿第二方向Y排列设置。第五侧面21e和第六侧面21f沿第三方向Z排列设置，电极端子213从第五侧面21e伸出。在一实施例中，第一侧面21a朝向第一侧壁112设置，第二侧面21b朝向第二侧壁113设置。第三侧面21c朝向第三侧壁114设置。第四侧面21d朝向部分第一连接件30设置。第五侧面21e朝向另一部分第一连接件30设置。第六侧面21f朝向第一壁111设置。通过将电芯21的第一侧面21a、第二侧面21b、第三侧面21c、第四侧面21d、第五侧 面21e和第六侧面21f均能与外界进行传热，提升对电芯组件20的散热，降低电池组100的温度。可以理解的是，上述方式同样适用于多个电芯21的情况。
在一实施例中，第一列电芯组20a还包括第一导热件22a，每一电芯21均热连接至少一第一导热件22a，第一导热件22a热连接第一壳体11和第一连接件30，将电芯21的热量通过第一导热件22a传递至第一壳体11和第一连接件30，再通过第一壳体11和第一连接件30对电芯21进行散热。第一导热件22a连接第一侧面21a或第二侧面21b并弯折后延伸至第三侧面21c、第四侧面21d和第六侧面21f。位于第一侧面21a的第一导热件22a热连接第一侧壁112。位于第二侧面21b的第一导热件22a热连接第二侧壁113。位于第三侧面21c的第一导热件22a热连接第三侧壁114。位于第四侧面21d的第一导热件22a热连接第一连接件30的表面。位于第六侧面21f的第一导热件22a热连接第一壁111的表面，通过第一导热件22a将电芯21的热量传递至第一连接件30和第一壳体11，提升对电芯21的散热效果。在另一实施例中，第一导热件22a无需延伸至第四侧面21d，第四侧面21d直接与第一连接件30热连接。其中，热连接可以是通过导热胶等实现热传递连接。热连接还可以是两个结构件之间直接接触连接，实现热连接，比如，第一导热件22a接触连接到第一壳体11和第一连接件30。可选的，第一导热件22a包括铝片。
在一实施例中，相邻的第一导热件22a之间还设有弹性件23，电芯21膨胀时，弹性件23可被压缩，为电芯21提供膨胀空间，可选的，弹性件23包括泡棉。
在一实施例中，电芯组件20还包括第二列电芯组20b，第一列电芯组20a与第二列电芯组20b沿第二方向Y设置。沿第二方向Y，第一连接件30设于第一列电芯组20a和第二列电芯组20b之间。第二列电芯组20b设于部分第一连接件30和第四侧壁115之间，且第二列电芯组20b设于第一侧壁112和第二侧壁113之间，第二列电芯组20b还设于第一壁111和部分第一连接件30之间。在一实施例中，第一连接件30热连接第一列电芯组20a和第二列电芯组20b，能够同时将第一列电芯组20a和第二列电芯组20b的热量传递至第一连接件30，并通过第一通道30a进行快速散热。
在一实施例中，第二列电芯组20b的电芯21与第一列电芯组20a的电芯21结构相同。第二列电芯组20b包括多个沿第一方向X堆叠设置的电芯21，每一 电芯21均接触连接第一连接件30和第一壳体11。
在一实施例中，第二列电芯组20b还包括第二导热件22b，第二导热件22b和第一导热件22a结构基本相同。可选的，第一连接件30连接第一导热件22a，第一连接件30连接第二导热件22b，第一连接件30位于第一导热件22a和第二导热件22b之间，提升对电芯组件20的散热。
在一实施例中，请参阅图12，在一实施例中，电池组100还包括第一导电件24。第一导电件24的一端连接第一列电芯组20a，另一端连接第二列电芯组20b。可选的，第一导电件24的一端连接第一列电芯组20a中电芯21的第一端子213b，另一端连接第二列电芯组20b中的电芯21的第二端子213c，实现第一列电芯组20a和第一列电芯组20a的串联。可选的，第一导电件24的一端连接第一列电芯组20a中电芯21的第一端子213b，另一端连接第二列电芯组20b中的电芯21的第一端子213b，实现第一列电芯组20a和第一列电芯组20a的并联。第一导电件24设有第二凹部241，第一连接件30部分设于第二凹部241内。
请参阅图10、图11和图12，在一实施例中，电池组100还包括第一转接板50，第一转接板50连接第一列电芯组20a。第一转接板50设有多组孔51，每组孔51包括沿第一方向X设置的第一连通孔511和第二连通孔512。第一连通孔511和第二连通孔512沿第二方向Y延伸设置。相邻电芯21的第一端子213b穿过第一连通孔511，另一电芯21的第二端子213c穿过第二连通孔512，第一端子213b的焊接部213a和第二端子213c的焊接部213a相互堆叠后连接于第一转接板50。
在一实施例中，第一转接板50包括电路板。可选的，第一转接板50包括印刷线路板(PCB,Printed Circuit Board)，第一转接板50上设置有多条导线(未图示)。可选的，第一转接板50包括柔性电路板(FPC,Flexible Printed Circuit)。
可选的，第一转接板50背离电芯21的一侧设有多个第一导电片52。第一导电片52设于第一连通孔511和第二连通孔512之间。相邻电芯21的第一端子213b穿过第一连通孔511，另一电芯21的第二端子213c穿过第二连通孔 512，第一端子213b的焊接部213a和第二端子213c的焊接部213a相互堆叠后焊接于第一导电片52。焊接包括激光焊接、超声波焊接等。在其他实施例中，焊接部213a与第一导电片52也可以通过导电胶等其他的连接方式。
可选的，每组孔51还包括第三连通孔513，沿第三方向Z观察，第三连通孔513位于相邻的第一导电片52之间。
在一实施例中，电池组100还包括连接于第一转接板50的第一电连接部53，第一电连接部53包括第一导电部531和第一绝缘部532，第一绝缘部532套设于第一导电部531，第一导电部531的两端伸出第一绝缘部532，第一导电部531一端连接第一导电片52，另一端连接电路板40。在一实施例中，第一导电部531和第一导电片52为一体式结构。在一实施例中，第一转接板50还设有第一采样线束54，第一采样线束54连接电路板40。第一采样线束54可采集电芯21的电流、电压、温度等信息。
请参阅图12、图13和图14在一实施例中，电池组100还包括第一绝缘件60，第一绝缘件60设于第一导电片52背离电芯21的一侧，对第一导电片52和电极端子213进行绝缘保护。第一绝缘件60包括第一主体61和由第一主体61的边缘延伸的第一侧板62。沿第三方向Z，第一转接板50的投影与第一主体61的投影有重叠。可选的，第一转接板50的投影位于第一主体61的投影内，使第一主体61覆盖第一导电片52和电极端子213。沿第一方向X或第二方向Y，第一侧板62的投影与第一转接板50的投影有重叠。进一步的，沿第一方向X或第二方向Y，第一导电片52的投影位于第一侧板62的投影内。
在一实施例中，第一主体61设有第五开口611，沿第三方向Z，第五开口611贯穿第一主体61的表面。第一电连接部53穿过第五开口611后延伸到第一主体61远离第一转接板50的一侧。可选的，第一主体61设有第一凸部612，第一凸部612设于第五开口611的边缘，通过第一凸部612对第一电连接部53进行限位。沿第二方向Y，第一导电部531的投影位于第一凸部612的投影内。通过第一凸部612对第一导电部531伸出第一绝缘部532的一端进行绝缘，降低第一导电部531伸出第一绝缘部532的部分发生短路的风险。可选的，沿第二方向Y，第一绝缘部532的投影与第一凸部612的投影有重叠，进一步提升对第一导电部531伸出部分的绝缘。
在一实施例中，第一主体61设有第六开口613，沿第三方向Z，第六开口 613贯穿第一主体61的表面。第一导电件24的穿过第六开口613并连接第一导电片52，可选的，第一主体61设有第二凸部614，第二凸部614位于第六开口613的边缘，沿第二方向Y，第一导电件24的投影与第二凸部614的投影有重叠，通过第二凸部614对第一导电件24进行限位以及绝缘。沿第二方向Y，第二凸部614的部分结构位于第一导电件24和第一连接件30之间，降低第一导电件24和第一连接件30连接短路的风险。
在一实施例中，第一主体61设有第七开口615，第七开口615贯穿第一主体61的表面。第七开口615边缘设有第三凸部616，第一采样线束54通过第七开口615穿过第一主体61，并连接电路板40。
请参阅图12、图15-图18，在一实施例中，电芯壳体211和第一转接板50之间第一导热层101。沿第一方向X，电极端子213的投影与第一导热层101的投影有重叠，通过第一导热层101对电芯壳体211和第一转接板50之间的电极端子213进行固定、绝缘和导热。
在一实施例中，第一导热层101通过将绝缘材料灌注于电池组100后固化形成。可选的，第一导热层101包含灌封胶、发泡胶的至少一种。可选的，第一导热层101通过将灌封胶灌注于电池组100后固化形成。可选的，第一导热层101通过发泡胶发泡形成。可选的，第一导热层101包含树脂，将树脂加热融化后，通过灌注的方式将可流动的树脂设于电芯壳体211和第一转接板50之间后固化形成。可选的，第一导热层101通过采用注塑工艺将可流动的树脂设于电芯壳体211和第一转接板50之间后固化形成。第一导热层101填充电芯壳体211和第一转接板50之间的间隙，加强电极端子213和第一转接板50的绝缘保护，限制水、灰尘等异物进入电芯壳体211和第一转接板50之间。
在一实施例中，第一绝缘件60和第一转接板50之间设有第二导热层102。沿第一方向X，电极端子213的焊接部213a的投影与第二导热层102的投影有重叠，第一导电片52的投影与第二导热层102的投影有重叠，第一导电件24的投影与第二导热层102的投影有重叠，通过第二导热层102对焊接部213a、第一导电件24和第一导电片52进行固定、绝缘和导热。
在一实施例中，第二导热层102将绝缘材料灌注于电池组100后固化形成。可选的，第二导热层102包含灌封胶、发泡胶的至少一种。可选的，第二导热层102通过将灌封胶灌注于电池组100后固化形成。可选的，第二导热层102 通过发泡胶发泡形成。可选的，第二导热层102包含树脂，将树脂加热融化后，通过灌注的方式将可流动的树脂设于第一绝缘件60和第一转接板50之间后固化形成。可选的，第二导热层102通过采用注塑工艺将可流动树脂设于电芯壳体211和第一转接板50之间后固化形成。第二导热层102填充第一绝缘件60和第一转接板50之间的间隙，加强第一绝缘件60和第一转接板50的绝缘保护，限制水、灰尘等异物进入第一绝缘件60和第一转接板50之间。
在一实施例中，第一连接件30设于第一绝缘件60背离第一转接板50的一侧，电极端子213的热量通过第一导热层101传递至第二导热层102，再从第二导热层102传递给第一连接件30。可选的，第一绝缘件60和第一连接件30之间设有第三导热层(图未示)，第二导热层102传递至第三导热层，由第三导热层传递至第一连接件30，再由第一连接件30对第一列电芯组20a进行散热，通过增加第三导热层，可提升电芯21的热量传递至第一连接件30的效率。可选的，第三导热层包括导热胶。
在一实施例中，第一主体61设有第一通孔61a，第一通孔61a贯穿第一主体61。流动的导热绝缘材料通过第一通孔61a流入第一绝缘件60和第一连接件30之间。在一实施例中，第三导热层的绝缘材料灌注于电池组100后固化形成。可选的，第三导热层包含灌封胶、发泡胶的至少一种。可选的，第三导热层通过将灌封胶灌注于电池组100后固化形成。可选的，第三导热层通过发泡胶发泡形成。可选的，第三导热层包含树脂，将树脂加热融化后，通过灌注的方式将可流动的树脂设于第一绝缘件60和第一连接件30之间后固化形成。可选的，第三导热层通过采用注塑工艺将可流动树脂设于第一绝缘件60和第一连接件30之间后固化形成，第三导热层填充第一绝缘件60和第一连接件30之间的间隙，加强第一绝缘件60和第一连接件30的绝缘保护，限制水、灰尘等异物进入第一绝缘件60和第一连接件30之间。
在一实施例中，第一导热层101、第二导热层102和第三导热层由相同的材料固化形成。首先在第五开口611、第六开口613和第七开口615内注入可快速固化的快干绝缘材料，比如快干胶或发泡胶。通过第一凸部612、第二凸部614和第三凸部616限制绝缘材料流动到第一主体61的其他位置，固化的绝缘材料封闭第五开口611、第六开口613和第七开口615，然后将电池组100组装成图10所示后沿与第三方向Z相反的方向进行倒置，然后通过灌胶通道注入 可流动的绝缘材料，绝缘材料流动到电芯壳体211和第一转接板50之间，并可通过第一连通孔511、第二连通孔512和第三连通孔513流动到第一绝缘件60和第一转接板50之间，并可通过第一通孔61a流入第一绝缘件60和第一连接件30之间。第一绝缘件60和第一连接件30之间的可流动的绝缘材料固化后形成第三导热层，第一绝缘件60和第一转接板50之间的可流动的绝缘材料固化后形成第二导热层102，电芯壳体211和第一转接板50之间的可流动的绝缘材料固化后形成第一导热层101。可选的，将电池组100倒置时，电芯21之间的间隙可作为灌胶通道。在通过灌胶通道注入可流动的绝缘材料时，第一导热层101、第二导热层102和第三导热层采用同一种绝缘材料，通过一次注入工艺手段，形成第一导热层101、第二导热层102和第三导热层，便于生产。
在一实施例中，沿第三方向Z，第一通孔61a的投影与电极端子213的投影有重叠，便于导热绝缘材料从第一通孔61a流入第一绝缘件60和第一连接件30之间。
在一实施例中，第一主体61朝向第一转接板50的一侧设有第一凸块61b。当第一绝缘件60连接第一转接板50时，第一凸块61b可接触连接第一转接板50，通过第一凸块61b支撑，使第一绝缘件60和第一转接板50之间具有间隙，用以容纳第二导热层102。可以理解的是，通过调整第一凸块61b沿第三方向Z的长度即可调整第一绝缘件60和第一转接板50之间的间隙大小，进而调整第一绝缘件60和第一转接板50之间的第二导热层102的量。
在一实施例中，电池组100还包括第二转接板70，第二转接板70连接第二列电芯组20b。第二转接板70背离电芯21的一侧设有多个第二导电片71，第二转接板70与第一转接板50相同的多组孔，相邻电芯21的第一端子213b穿过第二转接板70，另一电芯21的第二端子213c穿过第二转接板70，第一端子213b的焊接部213a和第二端子213c的焊接部213a相互堆叠后焊接于第二导电片71。焊接包括激光焊接、超声波焊接等。在其他实施例中，焊接部213a与第二导电片71也可以通过导电胶等其他的连接方式。
在一实施例中，第二转接板70包括电路板。可选的，第二转接板70包括印刷线路板(PCB,Printed Circuit Board)，第二转接板70上设置有多条导线(未图示)。可选的，第二转接板70包括柔性电路板(FPC,Flexible  Printed Circuit)。
在一实施例中，电池组100还包括连接于第二转接板70的第二电连接部72，第二电连接部72包括第二导电部721和第二绝缘部722，第二绝缘部722套设于第二导电部721，第二导电部721的两端伸出第二绝缘部722，第二导电部721一端连接第二导电片71，另一端连接电路板40。在一实施例中，第二导电部721和第二导电片71为一体式结构。在一实施例中，第二转接板70还设有第二采样线束73，第二采样线束73连接电路板40。第二采样线束73可采集电芯21的电流、电压、温度等信息。
在一实施例中，电池组100还包括第二绝缘件80，第二绝缘件80设于第二导电片71背离电芯21的一侧，对第二导电片71和电极端子213进行绝缘保护。第二绝缘件80包括第二主体81和由第二主体81的边缘延伸的第二侧板82。沿第三方向Z，第二转接板70的投影与第二主体81的投影有重叠。可选的，第二转接板70的投影位于第二主体81的投影内，使第二主体81覆盖第二导电部721和电极端子213。沿第一方向X或第二方向Y，第二侧板82的投影与第二转接板70的投影有重叠。进一步的，沿第一方向X或第二方向Y，第二导电片71的投影位于第二侧板82的投影内。
在一实施例中，第二主体81设有第八开口811，沿第三方向Z，第八开口811贯穿第二主体81的表面。第二电连接部72穿过第八开口811后延伸到第二主体81远离第二转接板70的一侧。可选的，第二主体81设有第四凸部812，第四凸部812设于第八开口811的边缘，通过第四凸部812对第二电连接部72进行限位。沿第二方向Y，第二导电部721的投影位于第四凸部812的投影内。通过第四凸部812对第二导电部721伸出第二绝缘部722的一端进行绝缘，降低第二导电部721伸出第二绝缘部722的部分发生短路的风险。可选的，沿第二方向Y，第二绝缘部722的投影与第四凸部812的投影有重叠，进一步提升对第二导电部721伸出部分的绝缘。
在一实施例中，第二主体81设有第九开口813，沿第三方向Z，第九开口813贯穿第二主体81的表面。第一导电件24的穿过第九开口813并连接第二导电片71，可选的，第二主体81设有第五凸部814，第五凸部814位于第九开口813的边缘，沿第二方向Y，第一导电件24的投影与第五凸部814的投影有重叠，通过第五凸部814对第一导电件24进行限位以及绝缘。沿第二方向Y， 第五凸部814的部分结构位于第一导电件24和第一连接件30之间，降低第一导电件24和第一连接件30连接短路的风险。
在一实施例中，第二主体81设有第十开口815，第十开口815贯穿第二主体81的表面。第十开口815边缘设有第六凸部816，第二采样线束73通过第十开口815穿过第二主体81，并连接电路板40。
在一实施例中，电芯壳体211和第二转接板70之间第四导热层(图未示)。沿第一方向X，电极端子213的投影与第四导热层的投影有重叠，通过第四导热层对电芯壳体211和第二转接板70之间的电极端子213进行固定、绝缘和导热。
在一实施例中，第四导热层通过将绝缘材料灌注于电池组100后固化形成。可选的，第四导热层包含灌封胶、发泡胶的至少一种。可选的，第四导热层通过将灌封胶灌注于电池组100后固化形成。可选的，第四导热层通过发泡胶发泡形成。可选的，第四导热层包含树脂，将树脂加热融化后，通过灌注的方式将可流动的树脂设于电芯壳体211和第二转接板70之间后固化形成。可选的，第四导热层通过采用注塑工艺将可流动的树脂设于电芯壳体211和第二转接板70之间后固化形成。第四导热层填充电芯壳体211和第二转接板70之间的间隙，加强电极端子213和第二转接板70的绝缘保护，限制水、灰尘等异物进入电芯壳体211和第二转接板70之间。
在一实施例中，第二绝缘件80和第二转接板70之间设有第五导热层(图未示)。沿第一方向X，电极端子213的焊接部213a的投影与第五导热层的投影有重叠，第二导电片71的投影与第五导热层的投影有重叠，第一导电件24的投影与第五导热层的投影有重叠，通过第五导热层对焊接部213a、第一导电件24和第二导电片71进行固定、绝缘和导热。
在一实施例中，第五导热层通过将绝缘材料灌注于电池组100后固化形成。可选的，第五导热层包含灌封胶、发泡胶的至少一种。可选的，第五导热层通过将灌封胶灌注于电池组100后固化形成。可选的，第五导热层通过发泡胶发泡形成。可选的，第五导热层包含树脂，将树脂加热融化后，通过灌注的方式将可流动的树脂设于第二绝缘件80和第二转接板70之间后固化形成。可选的，第五导热层通过采用注塑工艺将可流动的树脂设于第二绝缘件80和第二转接板70之间后固化形成。第五导热层填充第二绝缘件80和第二转接板70之间的间 隙，加强第二绝缘件80和第二转接板70的绝缘保护，限制水、灰尘等异物进入第二绝缘件80和第二转接板70之间。
在一实施例中，第一连接件30设于第二绝缘件80背离第二转接板70的一侧，电极端子213的热量通过第四导热层传递至第五导热层，从第五导热层传递给第一连接件30。可选的，第二绝缘件80和第一连接件30之间设有第六导热层(图未示)，电极端子213的热量通过第四导热层传递至第五导热层，再从第五导热层传递至第六导热层，由第六导热层传递至第一连接件30，再由第一连接件30对第二列电芯组20b进行散热，通过增加第六导热层，可提升电芯21的热量传递至第一连接件30的效率。可选的，第六导热层包括导热胶。
在一实施例中，第二主体81设有第二通孔81a，第二通孔81a贯穿第二主体81。流动的导热绝缘材料通过第二通孔81a流入第二绝缘件80和第一连接件30之间。在一实施例中，第六导热层的绝缘材料灌注于电池组100后固化形成。可选的，第六导热层包含灌封胶、发泡胶的至少一种。可选的，第六导热层通过将灌封胶灌注于电池组100后固化形成。可选的，第六导热层通过发泡胶发泡形成。可选的，第六导热层包含树脂，将树脂加热融化后，通过灌注的方式将可流动的树脂设于第二绝缘件80和第一连接件30之间后固化形成。可选的，第六导热层通过采用注塑工艺将可流动树脂设于第二绝缘件80和第一连接件30之间后固化形成，第六导热层填充第二绝缘件80和第一连接件30之间的间隙，加强第二绝缘件80和第一连接件30的绝缘保护，限制水、灰尘等异物进入第二绝缘件80和第一连接件30之间。
在一实施例中，第四导热层、第五导热层和第六导热层由相同的材料固化形成。首先在第八开口811、第九开口813和第十开口815内注入可快速固化的快干绝缘材料，比如快干胶或发泡胶，通过第四凸部812、第五凸部814和第六凸部816限制绝缘材料流动到第二主体81的其他位置。固化的绝缘材料封闭第八开口811、第九开口813和第十开口815，然后将电池组100组装成图10所示沿与第三方向Z相反的方向进行倒置，然后通过灌胶通道注入可流动的绝缘材料，绝缘材料流动到电芯壳体211和第二转接板70之间，并可通过第二转接板70上的孔流动到第二绝缘件80和第二转接板70之间，并可通过第二通孔81a流入第二绝缘件80和第一连接件30之间。第二绝缘件80和第一连接件30之间的可流动的绝缘材料固化后形成第六导热层，第二绝缘件80和第二转接板 70之间的可流动的绝缘材料固化后形成第五导热层，电芯壳体211和第二转接板70之间的可流动的绝缘材料固化后形成第四导热层。可选的，将电池组100倒置时，电芯21之间的间隙可作为灌胶通道。在通过灌胶通道注入可流动的绝缘材料时，第四导热层、第五导热层和第六导热层采用同一种绝缘材料，通过一次注入工艺手段，形成第四导热层、第五导热层和第六导热层，便于生产。
在一实施例中，沿第三方向Z，第二通孔81a的投影与电极端子213的投影有重叠，便于导热绝缘材料从第二通孔81a流入第二绝缘件80和第一连接件30之间。
在一实施例中，第二主体81朝向第二转接板70的一侧设有第二凸块81b。当第二绝缘件80连接第二转接板70时，第二凸块81b可接触连接第二转接板70，通过第二凸块81b支撑，使第二绝缘件80和第二转接板70之间具有间隙，用以容纳第五导热层。可以理解的是，通过调整第二凸块81b沿第三方向Z的长度即可调整第二绝缘件80和第二转接板70之间的间隙大小，进而调整第二绝缘件80和第二转接板70之间的第五导热层的量。
在一实施例中，第一导热层101、第二导热层102、第三导热层、第五导热层、第六导热层和第七导热层包括导热胶和导热垫。
请参阅图12、图16、图18、图19和图20，在一实施例中，第一连接件30包括第一部分31和第二部分32，第一部分31连接第二部分32。第一通道30a和第二连接孔30b设于第一部分31。第一通道30a沿第一方向X贯穿第一部分31。第一部分31包括沿第二方向Y设置的第一表面311和第二表面312。沿第二方向Y，第一表面311的投影与第一列电芯组20a的投影有重叠，第二表面312的投影与第二列电芯组20b的投影有重叠，通过第一表面311传导第一列电芯组20a的热量，第二表面312传导第二列电芯组20b的热量进行散热。可选的，沿第一方向X，第一列电芯组20a的投影位于第一表面311的投影内，第二列电芯组20b的投影位于第二表面312的投影内，使第一列电芯组20a的侧面均能与第一表面311之间进行导热，以及第二列电芯组20b的侧面均能与第二表面312之间进行导热，进一步提升散热。
在一实施例中，第一部分31与第一列电芯组20a之间设有导热胶，便于将热量快速传导至第一连接件30，进一步提升散热。在一实施例中，第一部分31与第二列电芯组20b之间设有导热胶，便于将热量快速传导至第一连接件30， 进一步提升散热。
在一实施例中，第一部分31还设有第二通道30c，第二通道30c沿第一方向X贯穿第一部分31。第一通道30a与第二通道30c沿第三方向Z间隔设置。通过设置第二通道30c，可以使第一通道30a和第二通道30c一同对电芯21进行散热，进一步提升散热效率。可以理解的是，第一部分31上通道的数量可以根据散热需求以及第一部分31沿第三方向Z的长度进行调整，第一部分31的长度越长，则可以设置的通道数量可以越多。可以理解的是，当随着通道数量的增加，第一壳体11和第二壳体12上的开口数量也需要增加。
在一实施例中，第二部分32垂直于第一部分31设置，第二部分32设于第一绝缘件60背离第一转接板50的一侧。沿第三方向Z，第一导电片52的投影和第一通孔61a的投影均位于第二部分32的投影内。可选的，第三导热层设于第二部分32与第一主体61之间，第一列电芯组20a的热量通过第三导热层传导至第二部分32，第二部分32传导至第一部分31，通过第一通道30a内流动的空气带走第一部分31上的热量，实现对第一列电芯组20a散热。
在一实施例中，第二部分32连接第一部分31的一侧设有第一缺口321，第一导电件24的通过第一缺口321连接第一导电片52。
在一实施例中，第一连接件30还包括第三部分33，第三部分33连接第一部分31。第三部分33垂直于第一部分31。第三部分33设于第二绝缘件80背离第二转接板70的一侧。沿第三方向Z，第二导电片71的投影和第二通孔81a的投影均位于第三部分33的投影内。可选的，第六导热层设于第三部分33与第二主体81之间，第二列电芯组20b的热量通过第六导热层传导至第三部分33，第三部分33传导至第一部分31，通过第一通道30a内流动的空气带走第一部分31上的热量，实现对第二列电芯组20b散热。
在一实施例中，第三部分33连接第一部分31的一侧设有第二缺口331，第一导电件24的通过第二缺口331连接第二导电片71。当第一导电件24连接第一导电片52和第二导电片71时，沿第一方向X观察，第一部分31部分位于第二凹部241内。
在一实施例中，第一部分31、第二部分32和第三部分33为一体式结构。
请参阅图21，本申请还提供一种采用上述电池组100的用电设备200。在一实施方式中，本申请的用电设备200可以是，但不限于无人机、备用电源、 电动汽车、电动摩托车、电动助力自行车、电动工具、家庭用大型蓄电池等。
本技术领域的普通技术人员应当认识到，以上的实施例仅是用来说明本申请，而并非用作为对本申请的限定，只要在本申请的实质精神范围内，对以上实施例所作的适当改变和变化都落在本申请公开的范围内。

Claims (14)

  1. 一种电池组，其特征在于，包括：
    壳体组件，具有第一空间，所述壳体组件设有连通所述第一空间的第一开口和第二开口；
    第一连接件，容纳于所述第一空间，所述第一连接件设有第一通道，所述第一开口和第二开口通过所述第一通道连通；
    电芯组件，所述电芯组件的至少部分设于第一空间，沿第一方向，所述第一开口的投影和所述第二开口的投影与所述电芯组件的投影相离，其中，所述第一方向为所述电芯组件中电芯堆叠方向。
  2. 如权利要求1所述的电池组，其特征在于，所述壳体组件包括第一壳体，所述第一壳体包括第一壁、第一侧壁、第二侧壁、第三侧壁和第四侧壁，所述第一壁连接所述第一侧壁、第二侧壁、第三侧壁和第四侧壁并形成所述第一空间，所述第一开口设于所述第一侧壁，所述第二开口设于所述第二侧壁，所述第一侧壁和所述第二侧壁沿第一方向排列设置，所述第三侧壁和第四侧壁沿第二方向排列设置，所述第一方向垂直于所述第二方向。
  3. 如权利要求2所述的电池组，其特征在于，所述第一连接件包括第一部分，所述第一通道设于所述第一部分，沿所述第二方向，所述第一部分位于所述第三侧壁和所述第四侧壁之间。
  4. 如权利要求3所述的电池组，其特征在于，所述第一连接件包括连接所述第一部分的第二部分，沿第三方向，所述电芯组件位于所述第一壁和第二部分之间，其中，所述第三方向同时垂直于所述第一方向和所述第二方向。
  5. 如权利要求2-4任意一项所述的电池组，其特征在于，所述电芯组件包括第一列电芯组，所述第一列电芯组包括多个沿所述第一方向堆叠设置的电芯，所述电芯包括电芯壳体、设于所述电芯壳体内的电极组件以及连接至所述电极组件并且从所述电芯壳体引出的电极端子。
  6. 如权利要求5所述的电池组，其特征在于，所述电芯组件还包括第二列电芯组，所述第一列电芯组和所述第二列电芯组沿所述第二方向排列设置，沿所述第二方向，所述第一部分设于所述第一列电芯组和第二列电芯组之间。
  7. 如权利要求6所述的电池组，其特征在于，所述第一连接件还包括第三部分，所述第三部分连接所述第一部分，沿所述第三方向，所述第一列电芯组位于所述第二部分和所述第一壁之间，所述第二列电芯组位于所述第三部分和所述第一壁之间。
  8. 如权利要求7所述的电池组，其特征在于，所述电池组还包括第一导电件，所述第二部分设有第一缺口，所述第三部分设有第二缺口，所述第一导电件一端连接所述第一列电芯组，另一端连接所述第二列电芯组，所述第一导电件的部分穿设于所述第一缺口，所述第一导电件的部分穿设于所述第二缺口。
  9. 如权利要求5所述的电池组，其特征在于，还包括第一绝缘件和第一转接板，所述第一转接板连接所述电极端子，所述第一绝缘件设于所述第一转接板背离所述电芯组件的一侧，沿所述第二方向，所述第一转接板的投影与所述第一绝缘件的投影有重叠，所述电极端子的投影与所述第一绝缘件的投影有重叠。
  10. 如权利要求9所述的电池组，其特征在于，所述第一转接板与所述电芯壳体之间设有第一导热层，沿所述第一方向，所述电极端子的投影与所述第一导热层的投影有重叠。
  11. 如权利要求10所述的电池组，其特征在于，所述第一绝缘件和所述第一转接板之间设有第二导热层，沿所述第一方向，所述电极端子的投影与所述第二导热层的投影有重叠。
  12. 如权利要求11所述的电池组，其特征在于，所述第一导热层和所述第二导热层的材料相同，将流动的绝缘材料流入后固化后形成所述第一导热 层和所述第二导热层。
  13. 如权利要求9所述的电池组，其特征在于，所述第二部分位于所述第一绝缘件背离所述第一转接板的一侧，所述第二部分与所述第一绝缘件之间设有第三导热层。
  14. 一种用电设备，其特征在于，包括如权利要求1-13任意一项所述的电池组。
PCT/CN2023/114575 2022-08-30 2023-08-24 电池组和用电设备 Ceased WO2024046194A1 (zh)

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115425321A (zh) * 2022-08-30 2022-12-02 厦门新能达科技有限公司 电池组和用电设备
CN115882164B (zh) * 2022-12-28 2025-06-10 厦门新能达科技有限公司 电池组及用电设备
WO2024138642A1 (zh) * 2022-12-30 2024-07-04 厦门新能达科技有限公司 电池组和用电设备
CN116315477B (zh) * 2022-12-30 2026-02-06 厦门新能达科技有限公司 电池组及外部设备
CN121529084A (zh) * 2023-01-17 2026-02-13 厦门新能达科技有限公司 电池组及用电设备
CN119768958A (zh) * 2023-03-10 2025-04-04 厦门新能达科技有限公司 电池包、用电设备及电池包的制造方法
CN118231834A (zh) * 2023-03-15 2024-06-21 厦门新能达科技有限公司 电池模组及用电装置
CN116190864A (zh) * 2023-03-29 2023-05-30 厦门新能达科技有限公司 一种电池包及用电设备
CN116231166A (zh) * 2023-03-31 2023-06-06 厦门新能达科技有限公司 加热装置、电化学装置及用电设备
CN119234348B (zh) * 2023-06-16 2026-01-16 厦门新能达科技有限公司 电池模组及其制造方法、电池组和用电设备
CN222191882U (zh) * 2024-04-17 2024-12-17 安克创新科技股份有限公司 一种移动电源
CN222867915U (zh) * 2024-06-17 2025-05-13 株式会社Aesc日本 电池模组和电池包

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113054286A (zh) * 2021-03-29 2021-06-29 珠海银隆电器有限公司 电池箱装置及具有其的电动汽车
CN113764774A (zh) * 2021-09-09 2021-12-07 东莞新能安科技有限公司 散热箱、电池组系统及用电设备
CN114094244A (zh) * 2021-11-22 2022-02-25 东莞新能安科技有限公司 电池组及用电设备
CN115425321A (zh) * 2022-08-30 2022-12-02 厦门新能达科技有限公司 电池组和用电设备
CN115588810A (zh) * 2022-08-30 2023-01-10 厦门新能达科技有限公司 电池组和用电设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5030500B2 (ja) * 2006-07-31 2012-09-19 三洋電機株式会社 電源装置
WO2012165493A1 (ja) * 2011-06-02 2012-12-06 三洋電機株式会社 電力用の電源装置及び電源装置を備える車両
WO2012173269A1 (ja) * 2011-06-17 2012-12-20 株式会社リチウムエナジージャパン 組電池
JP6096597B2 (ja) * 2012-06-07 2017-03-15 古河電池株式会社 蓄電池収納箱
KR102394688B1 (ko) * 2015-08-21 2022-05-06 삼성에스디아이 주식회사 배터리 모듈
JP6608653B2 (ja) * 2015-09-02 2019-11-20 株式会社東芝 電池モジュール
KR20180013460A (ko) * 2016-07-29 2018-02-07 박동식 배터리 장치
JP7096745B2 (ja) * 2018-09-19 2022-07-06 豊田合成株式会社 移動型電池パックシステム
KR102828348B1 (ko) * 2019-09-09 2025-07-03 삼성에스디아이 주식회사 배터리 팩
CN113471589B (zh) * 2021-06-30 2025-09-26 宁德新能源科技有限公司 一种电池包及用电设备
CN114069126B (zh) * 2021-11-22 2024-04-30 东莞新能安科技有限公司 电池包、电池包系统及用电设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113054286A (zh) * 2021-03-29 2021-06-29 珠海银隆电器有限公司 电池箱装置及具有其的电动汽车
CN113764774A (zh) * 2021-09-09 2021-12-07 东莞新能安科技有限公司 散热箱、电池组系统及用电设备
CN114094244A (zh) * 2021-11-22 2022-02-25 东莞新能安科技有限公司 电池组及用电设备
CN115425321A (zh) * 2022-08-30 2022-12-02 厦门新能达科技有限公司 电池组和用电设备
CN115588810A (zh) * 2022-08-30 2023-01-10 厦门新能达科技有限公司 电池组和用电设备

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4579877A4 *

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