WO2025123792A1 - 一种电池包及用电设备 - Google Patents

一种电池包及用电设备 Download PDF

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Publication number
WO2025123792A1
WO2025123792A1 PCT/CN2024/115622 CN2024115622W WO2025123792A1 WO 2025123792 A1 WO2025123792 A1 WO 2025123792A1 CN 2024115622 W CN2024115622 W CN 2024115622W WO 2025123792 A1 WO2025123792 A1 WO 2025123792A1
Authority
WO
WIPO (PCT)
Prior art keywords
cavity
heat exchange
battery pack
frame
partition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/115622
Other languages
English (en)
French (fr)
Inventor
刘建龙
董涛
付宏旭
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.)
Sunwoda Mobility Energy Technology Co Ltd
Original Assignee
Sunwoda Mobility Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sunwoda Mobility Energy Technology Co Ltd filed Critical Sunwoda Mobility Energy Technology Co Ltd
Publication of WO2025123792A1 publication Critical patent/WO2025123792A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M10/655—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
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • 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 but is not limited to the field of battery technology, and specifically to a battery pack and electrical equipment.
  • the internal batteries of the battery pack will generate heat during use, especially during high-power charging and discharging. A large amount of heat will be generated in the battery pack. If the heat cannot be dissipated in time, the battery will be in a high temperature state for a long time, which can easily lead to a reduction in battery life and even cause thermal runaway of the battery, resulting in more serious safety accidents.
  • An embodiment of the present application provides a battery pack; an embodiment of the present application also provides an electrical device using the battery pack.
  • a box body wherein the box body has a containing cavity
  • a plurality of batteries each battery comprising a body and a pole arranged on one side of the body;
  • a partition wherein the partition is arranged in the accommodating cavity, the partition is connected to the box body, the partition divides the accommodating cavity and forms a first space and a second space, the partition is provided with a plurality of assembly holes, the assembly holes connect the first space and the second space, the body is arranged in the first space, the pole is passed through the assembly holes, a sealing groove is provided on a side of the partition close to the body, the sealing groove surrounds the assembly hole, a sealing portion is provided in the sealing groove, and the sealing portion seals and connects the body and the partition.
  • the body includes a first wall, a second wall, and a peripheral wall connected between the first wall and the second wall, the pole is provided on the first wall, and the sealing portion is connected to the first wall;
  • the box body comprises a first bottom plate and a frame surrounding the first bottom plate, the first bottom plate and the frame enclose the accommodating cavity, and the second wall is connected to the first bottom plate;
  • the battery pack also includes a first spacer disposed in the first space, the first spacer is arranged around the peripheral wall, the first spacer, the adjacent batteries, the first bottom plate and the frame together form a heat exchange channel, and the heat exchange channel and the partition are sealed by the first spacer.
  • the sealing groove has a first groove portion surrounding the assembly hole and a second groove portion surrounding the first groove portion;
  • the sealing portion includes a first sealing member provided in the first groove portion and a second sealing member provided in the second groove portion, and the first sealing member and the second sealing member are respectively sealed and connected to the body.
  • the sealing groove further has a third groove portion located on a side of the first groove portion close to the assembly hole, and the first groove portion surrounds the third groove portion;
  • the sealing portion further includes a third sealing member filled in the third groove portion, and the third sealing member is sealingly connected to the body.
  • the first groove portion is communicated with the second groove portion, and the first sealing member is connected to the second sealing member.
  • the first groove portion is connected to the third groove portion, and the first sealing member is connected to the third sealing member.
  • the battery pack further includes a second partition portion disposed in the first space, the second partition portion is arranged around the peripheral wall and is spaced apart from the first partition portion, and the heat exchange channel is located between the first partition portion and the second partition portion.
  • the first spacer is sealingly connected to the partition.
  • the second partition is sealingly connected to the first bottom plate.
  • the box body also includes a second bottom plate, which is arranged on a side of the first bottom plate away from the accommodating cavity, the second bottom plate is connected to the frame, and the first bottom plate, the second bottom plate and the frame form a bottom cavity, the bottom cavity is connected to the heat exchange channel, and the frame is provided with a liquid inlet connected to the heat exchange channel and a liquid outlet connected to the bottom cavity.
  • the battery pack has a first direction, a second direction and a third direction that intersect each other, the first space and the second space are arranged in the first direction, a plurality of the batteries are arranged in the third direction to form a plurality of rows, and the plurality of rows of batteries are arranged in the second direction;
  • the plurality of heat exchange channels extend along the third direction and are arranged in an array along the second direction, and the plurality of heat exchange channels include a first heat exchange channel and a second heat exchange channel that are interconnected, and at least one third heat exchange channel located between the first heat exchange channel and the second heat exchange channel;
  • the frame has a liquid inlet cavity, a liquid outlet cavity and a confluence cavity located on both sides of the liquid outlet cavity in the second direction, which are separated from each other.
  • the liquid inlet is connected to the liquid inlet cavity and is connected to the third heat exchange channel through the liquid inlet cavity.
  • the liquid outlet is connected to the liquid outlet cavity and is connected to the bottom cavity through the liquid outlet cavity.
  • the first heat exchange channel and the second heat exchange channel are connected to the confluence cavity and are connected to the bottom cavity through the confluence cavity.
  • the frame includes a first frame portion, a third frame portion, and a second frame portion connected between the first frame portion and the third frame portion, the liquid inlet and the liquid outlet are respectively provided in the second frame portion, and the liquid inlet cavity, the liquid outlet cavity, and the confluence cavity are located in the second frame portion;
  • the first heat exchange channel is located between the first frame and one row of the batteries, and the second heat exchange channel is located between the second frame and another row of the batteries.
  • the battery pack further comprises a plurality of flow dividers, the plurality of flow dividers are arranged in the bottom cavity at intervals in the second direction, and the flow dividers are connected between the first bottom plate and the second bottom plate to divide the bottom cavity and form a plurality of sub-flow channels;
  • the diverter has a first end and a second end in the third direction, the frame is provided with a first opening connecting the confluence chamber and the bottom chamber, and a second opening connecting the liquid outlet chamber and the bottom chamber, at least part of the first end of the diverter is connected to the frame and separated between the first opening and the second opening, and at least part of the second end of the diverter has a gap with the frame to connect the adjacent sub-channels.
  • the battery pack also includes a partition and a control module arranged in the accommodating cavity, the partition extends in the second direction and connects the first bottom plate and the frame to separate the accommodating cavity and form a third space, the third space is separated from the first space, the control module is arranged in the third space, and the control module is electrically connected to the battery.
  • an electrical device described in an embodiment of the present application includes the above-mentioned battery pack.
  • the battery pack of the embodiment of the present application includes a box body, a plurality of batteries and a separator, wherein the box body has a storage cavity, the battery includes a body and a pole arranged on one side of the body, the separator is arranged in the storage cavity, the separator is connected to the box body, the separator separates the storage cavity and forms a first space and a second space, the separator is provided with a plurality of assembly holes, the assembly holes connect the first space and the second space, the body is arranged in the first space, the pole is passed through the assembly hole, a sealing groove is provided on a side of the separator close to the body, the sealing groove surrounds the assembly hole, a sealing part is provided in the sealing groove, and the sealing part seals and connects the body and the separator.
  • the assembly hole can quickly locate the battery installation position and separate the pole on the side facing the second space, the sealing groove surrounding the assembly hole and the sealing part sealingly connected to the body are conducive to improving the sealing effect between the first space and the assembly hole, avoiding the first space and the second space from being connected to each other, and the battery can be cooled by a heat exchange medium as needed, so as to maintain a good operating temperature of the battery, which is conducive to improving the safety of battery use and extending the service life of the battery.
  • FIG1 is a schematic diagram of the structure of a battery pack according to Embodiment 1 of the present application.
  • Fig. 3 is a schematic cross-sectional view of the structure along line A-A in Fig. 1;
  • FIG4 is a partial enlarged view of portion C in FIG3 ;
  • FIG5 is an exploded view of the battery pack of Embodiment 1 of the present application from another perspective;
  • FIG6 is a partial enlarged view of portion D in FIG5 ;
  • Fig. 7 is a schematic cross-sectional view of the structure along line B-B in Fig. 1;
  • FIG8 is a schematic diagram of the partial structure of the second frame portion and the accommodating cavity in Example 1 of the present application.
  • FIG9 is a schematic diagram of the structure of a battery pack according to Embodiment 2 of the present application.
  • FIG10 is an exploded view of a battery pack according to Embodiment 2 of the present application.
  • FIG11 is a schematic cross-sectional view of the structure along line E-E in FIG9 ;
  • FIG12 is a partial enlarged view of portion F in FIG11;
  • FIG13 is an exploded view of the battery pack of Embodiment 2 of the present application from another perspective;
  • FIG14 is a partial enlarged view of portion G in FIG13;
  • FIG15 is a schematic diagram of the structure of a battery pack according to Embodiment 3 of the present application.
  • FIG16 is an exploded view of a battery pack according to Embodiment 3 of the present application.
  • FIG17 is a schematic cross-sectional view of the structure along line H-H in FIG15 ;
  • FIG18 is a partial enlarged view of part I in FIG17;
  • FIG19 is an exploded view of the battery pack of Embodiment 3 of the present application from another perspective;
  • FIG20 is a partial enlarged view of portion J in FIG19;
  • first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
  • the features defined as “first” and “second” may explicitly or implicitly include one or more features.
  • “multiple” means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.
  • the batteries will generate heat. If the batteries are in a high temperature state for a long time, the service life of the batteries will be reduced, and even thermal runaway of the batteries will be caused, which will lead to more serious safety accidents. For this reason, heat exchange plates are usually arranged in the battery pack to fit the batteries. Heat exchange media is introduced into the heat exchange plates to cool the batteries in time. At the same time, when the batteries are used in an external ambient temperature that is low, the heat exchange media can also be used to heat the batteries to maintain a good operating temperature of the batteries. The heat exchange plate, as a part that holds the heat exchange media and realizes heat exchange with the batteries, will also consume energy itself.
  • an embodiment of the present application provides a battery pack, aiming to overcome at least one of the above-mentioned technical problems.
  • first direction X is parallel to the thickness direction of the battery pack as a whole in the present embodiment
  • second direction Y is parallel to the width direction of the battery pack as a whole in the present embodiment
  • third direction Z is parallel to the length direction of the battery pack as a whole in the present embodiment.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the battery pack includes a case 1, a plurality of batteries 2, and a separator 3.
  • the case 1 has a receiving cavity 10 and an opening 105 connected to the receiving cavity 10.
  • the battery 2 includes a body 20 and a pole 21 disposed on one side of the body 20.
  • the separator 3 is disposed in the receiving cavity 10.
  • the separator 3 is connected to the case 1.
  • the separator 3 separates the receiving cavity 10 and forms a first space 100 and a second space 101 in the first direction X.
  • the separator 3 is provided with a plurality of assembly holes 30.
  • the assembly holes 30 connect the first space 100 and the second space 101.
  • the body 20 is disposed in the first space 100.
  • the pole 21 is passed through the assembly holes 30.
  • a sealing groove 31 is provided on one side of the separator 3 close to the body 20.
  • the sealing groove 31 surrounds the assembly hole 30.
  • a sealing portion 4 is provided in the sealing groove 31. The sealing portion 4 seals and connects the body 20 and the separator 3.
  • the assembly hole 30 can quickly locate the installation position of the battery 2 so that the pole 21 is separated on the side facing the second space 101.
  • the sealing groove 31 surrounding the assembly hole 30 and the sealing portion 4 of the sealing connection body 20 are beneficial to improving the sealing effect between the first space 100 and the assembly hole 30, avoiding the first space 100 and the second space 101 from being connected to each other.
  • the battery 2 can be cooled by a heat exchange medium as needed, thereby maintaining a good operating temperature of the battery 2, which is beneficial to improving the safety of the battery 2 and extending the service life of the battery 2.
  • the body 20 includes a first wall 200, a second wall 201, and a peripheral wall 202 connected between the first wall 200 and the second wall 201.
  • the battery 2 in this embodiment takes a square battery 2 as an example, and it can be understood that the peripheral wall 202 is four side walls surrounding the first wall 200 and the second wall 201.
  • the first wall 200 is set as the top cover of the square battery 2, and two poles 21 are provided and pass through the first wall 200.
  • the pressure relief structure of the square battery 2 is also set on the first wall 200.
  • two assembly holes 30 are opened on the separator 3 corresponding to the two poles 21.
  • the pole 21 passes through the assembly hole 30 and extends to the second space 101.
  • a pressure relief hole 32 is also opened on the separator 3 corresponding to the pressure relief structure of the square battery 2, and the pressure relief hole 32 is not connected to the two assembly holes 30.
  • the first wall 200 is in contact with the partition 3.
  • the pressure relief hole 32 can provide the pressure relief structure of the battery 2 with independent pressure relief and exhaust, reducing the possibility of high-temperature gas being discharged into the first space 100, avoiding damage to other batteries 2, and facilitating the arrangement of an exhaust structure on the box body 1, avoiding the need for the pressure relief and exhaust structure of the battery pack to be connected to the first space 100 and generating additional sealing requirements.
  • the sealing portion 4 is connected to the first wall 200, and in this embodiment, the sealing groove 31 surrounds the two assembly holes 30 and the outside of the pressure relief hole 32.
  • the sealing portion 4 can be filled with sealant in the sealing groove 31.
  • the sealing groove 31 cooperates with the sealing portion 4 to form a sealing structure between the assembly hole 30, the pressure relief hole 32 and the first space 100, which is conducive to reducing the problem of heat exchange medium leaking toward the second space 101 when the heat exchange medium is introduced into the first space 100.
  • the box body 1 includes a first bottom plate 11 and a frame 12 surrounding the first bottom plate 11, the first bottom plate 11 and the frame 12 enclose a receiving cavity 10, and the second wall 201 connects the first bottom plate 11; in addition, the box body 1 also includes a top plate 17 for sealing the opening 105.
  • the battery pack also includes a first partition 5 provided in the first space 100, the first partition 5 is arranged around the peripheral wall 202, the first partition 5, the adjacent battery 2, the first bottom plate 11 and the frame 12 together enclose a heat exchange channel 104, and the heat exchange channel 104 and the partition 3 are sealed by the first partition 5.
  • the first spacer 5 is adapted to the shape of the peripheral wall 202 of the square battery 2, that is, it is designed as a frame structure surrounding the peripheral wall 202, and the multiple batteries 2 are spaced apart from each other by the first spacer 5:
  • the first spacer 5 is spaced between adjacent batteries 2 to form a heat exchange channel 104 for the heat exchange medium to flow, so that the heat exchange medium can fully contact the battery 2;
  • the first spacer 5 is spaced between adjacent batteries 2 and provides a buffer space for the normal expansion of the battery 2 during use;
  • the first spacer 5 can also assist the sealing groove 31 and the sealing portion 4 to further improve the sealing effect between the heat exchange channel 104 and the second space 101 .
  • the battery pack further includes a second spacer 6 disposed in the first space 100, the second spacer 6 is disposed around the peripheral wall 202 and is spaced apart from the first spacer 5, and the heat exchange flow channel 104 is located between the first spacer 5 and the second spacer 6.
  • the second spacer 6 cooperates with the first spacer 5 in the first direction X to form a stable interval between adjacent batteries 2, and between the battery 2 and the box 1.
  • the second spacer 6 can also be fixed on the first bottom plate 11, so as to facilitate the rapid positioning of the arrangement position of the battery 2, which is conducive to simplifying the processing and assembly process compared to the additional positioning groove and other structures on the first bottom plate 11.
  • the first spacer 5 is attached to and sealed with the partition 3, and the second spacer 6 is attached to and sealed with the first bottom plate 11.
  • the contact area between the heat exchange channel 104 and the peripheral wall 202 in the first direction X is ensured, and the heat exchange effect between the heat exchange channel 104 and the battery 2 is improved.
  • the box body 1 further includes a second bottom plate 13, which is disposed on the side of the first bottom plate 11 away from the accommodating chamber 10, and the second bottom plate 13 is connected to the frame 12, and the first bottom plate 11, the second bottom plate 13 and the frame 12 form a bottom chamber 14, the bottom chamber 14 is connected to the heat exchange channel 104, and the frame 12 is provided with a liquid inlet 15 connected to the heat exchange channel 104 and a liquid outlet 16 connected to the bottom chamber 14.
  • the heat exchange structure in the box body 1 is designed at two locations, one of which is the multiple heat exchange channels 104 in the first space 100, and the heat exchange medium can be introduced from the liquid inlet 15 and then directly contact and exchange heat with the battery 2 through the multiple heat exchange channels 104, and the other is that the heat exchange medium flows into the bottom chamber 14, thereby indirectly contacting and exchanging heat with the second wall 201 through the first bottom plate 11.
  • a plurality of batteries 2 are arranged in a third direction Z and form a plurality of rows, and a plurality of rows of batteries 2 are arranged in a second direction Y.
  • a plurality of heat exchange channels 104 are formed to extend along the third direction Z and are arranged along the second direction Y.
  • the plurality of heat exchange channels 104 include a first heat exchange channel 1040 and a second heat exchange channel 1041 that are interconnected, and at least one third heat exchange channel 1042 located between the first heat exchange channel 1040 and the second heat exchange channel 1041. As shown in FIG.
  • the actual battery pack also includes a side plate 7, which is used to connect the rows of batteries 2 located on both sides in the second direction Y, and the actual first heat exchange channel 1040 and the second heat exchange channel 1041 are also located between the rows of batteries 2 and the side plate 7.
  • the frame 12 has a liquid inlet cavity 120, a liquid outlet cavity 121 and a confluence cavity 122 located on both sides of the liquid outlet cavity 121 in the second direction Y, the liquid inlet 15 is connected to the liquid inlet cavity 120, and is connected to the third heat exchange channel 1042 through the liquid inlet cavity 120, the liquid outlet 16 is connected to the liquid outlet cavity 121, and is connected to the bottom cavity 14 through the liquid outlet cavity 121, the first heat exchange channel 1040 and the second heat exchange channel 1041 are connected to the confluence cavity 122, and are connected to the bottom cavity 14 through the confluence cavity 122.
  • the heat exchange medium after the heat exchange medium is introduced into the liquid inlet cavity 120 through the liquid inlet 15, it flows through the third heat exchange channel 1042 and then flows to the first heat exchange channel 1040 and the second heat exchange channel 1041 on both sides in the second direction Y, which is conducive to improving the uniform flow of the heat exchange medium and sufficient heat exchange effect.
  • the frame 12 includes a first frame portion 123, a third frame portion 125, and a second frame portion 124 and a fourth frame portion 126 spaced apart in the third direction Z, the second frame portion 124 and the fourth frame portion 126 are connected between the first frame portion 123 and the third frame portion 125, the liquid inlet 15 and the liquid outlet 16 are respectively provided in the second frame portion 124, and the liquid inlet cavity 120, the liquid outlet cavity 121 and the confluence cavity 122 are located in the second frame portion 124, and the second frame portion 124 is correspondingly provided with a first opening 127 connecting the confluence cavity 122 and the bottom cavity 14, a second opening 128 connecting the liquid outlet cavity 121 and the bottom cavity 14, and a third opening 129 connecting the liquid inlet cavity 120 and the third heat exchange channel 1042.
  • the first heat exchange channel 1040 is located between the first frame portion 123 and one row of batteries 2, and the second heat exchange channel 1041 is located between the second frame portion 124 and another row of batteries 2. That is, it is ensured that after the heat exchange medium flows through the plurality of third heat exchange channels 1042, it can reach the first frame portion 123 and the third frame portion 125 along the second direction Y to fully exchange heat with the plurality of batteries 2.
  • the battery pack further includes a plurality of flow dividers 18, which are spaced apart in the bottom cavity 14 in the second direction Y, and the flow dividers 18 are connected between the first bottom plate 11 and the second bottom plate 13 to separate the bottom cavity 14 and form a plurality of sub-flow channels 140.
  • the flow dividers 18 may be integrally formed with the first bottom plate 11 and sealedly connected to the second bottom plate 13.
  • the flow divider 18 has a first end 180 and a second end 181 in the third direction Z, and the first end 180 of at least part of the flow divider 18 is connected to the frame 12 and separated between the first opening 127 and the second opening 128, and there is a gap 141 between the second end 181 of at least part of the flow divider 18 and the frame 12 to connect adjacent sub-channels 140.
  • three flow dividers 18 are taken as an example, wherein one flow divider 18 is respectively arranged between two corresponding first openings 127 and adjacent second openings 128, so that the flow divider 18 blocks between the first opening 127 and the second opening 128, so as to prevent the heat exchange medium from being directly discharged from the liquid outlet 16 after being introduced into the confluence cavity 122, so that the heat exchange medium in the bottom cavity 14 can be guided by the flow divider 18, fully flow along the first direction X, and indirectly contact the battery 2 for heat exchange, thereby improving the heat exchange effect of the heat exchange medium.
  • the battery pack also includes a partition 19 and a control module 8 arranged in the accommodating cavity 10.
  • the partition 19 is arranged on the side of the partition 3 away from the liquid inlet 15.
  • the partition 19 extends in the second direction Y and connects the first bottom plate 11 and the frame 12 to separate the accommodating cavity 10 and form a third space 103 separated from the first space 100.
  • the control module 8 is installed in the third space 103, and the control module 8 is electrically connected to the battery 2.
  • control module 8 can be a battery management system (BMS) or a battery disconnect unit (BDU).
  • BMS battery management system
  • BDU battery disconnect unit
  • two control modules 8, BMS and BDU are arranged at the same time.
  • the frame 12 is away from the liquid inlet 15 and is provided with a first plug 80 and a second plug 81.
  • the first plug 80 and the second plug 81 can be electrically connected to the control module 8.
  • the first plug 80 and the second plug 81 can be the high-voltage plug and the low-voltage plug of the battery pack, which will not be repeated here.
  • an embodiment of the present application provides an electric device, which includes the above-mentioned battery pack.
  • the electric device can be an electronic device, a power storage device, or a power vehicle. It is understandable that the electric device can have all the technical features and corresponding beneficial effects of the above-mentioned battery pack, which will not be repeated here.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the sealing groove 31 has a first groove portion 310 surrounding the assembly hole 30 and a second groove portion 311 surrounding the first groove portion 310.
  • the sealing portion 4 includes a first sealing member 40 provided in the first groove portion 310 and a second sealing member 41 provided in the second groove portion 311. The first sealing member 40 and the second sealing member 41 are respectively sealed and connected to the body 20.
  • first groove portion 310 and the second groove portion 311 are connected, and the first seal 40 is connected to the second seal 41.
  • the first seal 40 is set to an elastic material, and a sealing foam can be used, and the second seal 41 can be made of a sealant.
  • the first seal 40 can be bonded to the second seal 41, and the first seal 40 can provide buffer protection for the battery 2 by relying on its own elasticity, and the second seal 41 can improve the fixing effect of the first seal 40.
  • the first groove portion 310 and the second groove portion 311 have a height difference in the first direction X, wherein the height of the first groove portion 310 in the first direction X is set to be greater than the height of the second groove portion 311 in the first direction X, so as to provide sufficient elastic buffer space for the elastic first seal 40.
  • a first seal 40 and a second seal 41 are sequentially arranged between the first space 100 and the assembly hole 30 for double-layer sealing, thereby further improving the sealing effect between the first space 100 and the second space 101.
  • the first seal 40 by configuring the first seal 40 to have an elastic sealing foam, the buffering protection effect on the battery 2 is further improved.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the sealing groove 31 further includes a third groove portion 312 located on the side of the first groove portion 310 close to the assembly hole 30, the first groove portion 310 surrounds the third groove portion 312, the design height of the third groove portion 312 in the first direction X can be the same as that of the second groove portion 311, and the sealing portion 4 further includes a third sealing member 42 filled in the third groove portion 312, and the third sealing member 42 is sealed and connected to the body 20.
  • the third sealing member 42 can be made of the same material as the second sealing member 41, such as a sealant material.
  • the first groove portion 310 and the third groove portion 312 are connected, and the first seal 40 is connected to the third seal 42.
  • the first seal 40 can also be bonded to the third seal 42, further improving the fixing effect of the first seal 40.
  • the second seal 41, the first seal 40 and the third seal 42 are sequentially arranged between the first space 100 and the assembly hole 30 to cooperate with three layers of sealing, further improving the sealing effect between the first space 100 and the second space 101.
  • the buffer protection effect of the battery 2 is further improved.

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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)

Abstract

一种电池包及用电设备，电池包包括箱体（1），箱体（1）具有容纳腔（10），多个电池（2），电池（2）包括本体（20）和设置在本体（20）一侧的极柱（21），分隔件（3），分隔件（3）设于容纳腔（10），分隔件（3）连接箱体（1），分隔件（3）分隔容纳腔（10）并形成有第一空间（100）以及第二空间（101），分隔件（3）开设有多个装配孔（30），装配孔（30）连通第一空间（100）和第二空间（101），本体（20）设于第一空间（100），极柱（21）穿设于装配孔（30），分隔件（3）靠近本体（20）的一侧设有密封槽（31），密封槽（31）环绕装配孔（30），密封槽（31）内设有密封部（4），密封部（4）密封连接本体（20）和分隔件（3）。

Description

一种电池包及用电设备
本申请要求于2023年12月15日提交中国专利局、申请号为202311733462.X、申请名称为“一种电池包及用电设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及但不限于电池技术领域，具体涉及一种电池包及用电设备。
 背景技术
电池包使用过程中内部电池都会伴随着发热现象，尤其是在大功率充放电过程中，电池包内会产生大量热量，若不能及时散热，导致电池长时间处于高温状态下，容易导致电池寿命降低，甚至引发电池热失控，造成更严重的安全事故。
 技术解决方案
本申请实施例提供一种电池包；本申请实施例还提供一种应用上述电池包的用电设备。
本申请实施例所述的一种电池包，包括：
箱体，所述箱体具有容纳腔；
多个电池，所述电池包括本体和设置在所述本体一侧的极柱；
分隔件，所述分隔件设于所述容纳腔，所述分隔件连接所述箱体，所述分隔件分隔所述容纳腔并形成有第一空间以及第二空间，所述分隔件开设有多个装配孔，所述装配孔连通所述第一空间和所述第二空间，所述本体设于所述第一空间，所述极柱穿设于所述装配孔，所述分隔件靠近所述本体的一侧设有密封槽，所述密封槽环绕所述装配孔，所述密封槽内设有密封部，所述密封部密封连接所述本体和所述分隔件。
可选的，所述本体包括第一壁、第二壁以及连接在所述第一壁和所述第二壁之间的周壁，所述极柱设于所述第一壁，且所述密封部连接所述第一壁；
所述箱体包括第一底板以及环绕所述第一底板的边框，所述第一底板和所述边框围成所述容纳腔，所述第二壁连接所述第一底板；
所述电池包还包括设于所述第一空间的第一间隔部，所述第一间隔部环设于所述周壁，所述第一间隔部、相邻的所述电池、所述第一底板和所述边框共同围合形成换热流道，所述换热流道与所述分隔件之间通过所述第一间隔部密封间隔。
可选的，所述密封槽具有环绕所述装配孔的第一槽部以及环绕所述第一槽部的第二槽部；
所述密封部包括设于所述第一槽部的第一密封件以及设于所述第二槽部的第二密封件，所述第一密封件以及所述第二密封件分别密封连接所述本体。
可选的，所述密封槽还具有位于所述第一槽部靠近所述装配孔一侧的第三槽部，所述第一槽部环绕所述第三槽部；
所述密封部还包括填充于所述第三槽部的第三密封件，所述第三密封件密封连接所述本体。
可选的，所述第一槽部和第二槽部相连通，且所述第一密封件连接所述第二密封件。
可选的，所述第一槽部和所述第三槽部相连通，且所述第一密封件连接所述第三密封件。
可选的，所述电池包还包括设于所述第一空间的第二间隔部，所述第二间隔部环设于所述周壁并与所述第一间隔部相间隔，所述换热流道位于所述第一间隔部和所述第二间隔部之间。
可选的，所述第一间隔部密封连接所述分隔件。
可选的，所述第二间隔部密封连接所述第一底板。
可选的，所述箱体还包括第二底板，所述第二底板设于所述第一底板背离所述容纳腔的一侧，所述第二底板连接所述边框，且所述第一底板、所述第二底板以及所述边框围成有底腔，所述底腔连通所述换热流道，所述边框开设有连通所述换热流道的进液口以及连通所述底腔的出液口。
可选的，所述电池包具有两两相交的第一方向、第二方向以及第三方向，所述第一空间和所述第二空间在所述第一方向上排列设置，多个所述电池在所述第三方向上排布并形成多排，多排所述电池在所述第二方向上排列；
多个所述换热流道沿所述第三方向延伸，且沿所述第二方向排列设置，多个所述换热流道包括相互连通的第一换热流道、第二换热流道以及至少一个位于所述第一换热流道和所述第二换热流道之间的第三换热流道；
所述边框内具有相互分隔的进液腔、出液腔以及位于所述出液腔在所述第二方向两侧的汇流腔，所述进液口连通所述进液腔，并通过所述进液腔连通所述第三换热流道，所述出液口连通所述出液腔，并通过所述出液腔连通所述底腔，所述第一换热流道和所述第二换热流道连通所述汇流腔，并通过所述汇流腔连通所述底腔。
可选的，所述边框包括在所述第二方向上间隔设置的第一框部、第三框部以及连接在所述第一框部和所述第三框部之间的第二框部，所述进液口和所述出液口分别设于所述第二框部，且所述进液腔、所述出液腔以及所述汇流腔位于所述第二框部内；
所述第一换热流道位于所述第一框部和其中一排所述电池之间，所述第二换热流道位于所述第二框部和另一排所述电池之间。
可选的，所述电池包还包括多个分流件，多个所述分流件在所述第二方向上间隔设于所述底腔，所述分流件连接在所述第一底板和所述第二底板之间，以分隔所述底腔并形成多个子流道；
所述分流件在所述第三方向上具有第一端和第二端，所述边框开设有连通所述汇流腔和所述底腔的第一通口以及连通所述出液腔和所述底腔的第二通口，至少部分所述分流件的所述第一端连接所述边框并分隔在所述第一通口和所述第二通口之间，且至少部分所述分流件的所述第二端和所述边框之间具有间隙，以连通相邻所述子流道。
可选的，所述电池包还包括设于所述容纳腔的隔板以及控制模块，所述隔板在所述第二方向延伸并连接所述第一底板和所述边框，以分隔所述容纳腔并形成有第三空间，所述第三空间和所述第一空间相间隔，所述控制模块设于所述第三空间，所述控制模块电性连接所述电池。
相应的，本申请实施例所述的一种用电设备，包括上述的电池包。
 有益效果
本申请实施例的电池包包括箱体、多个电池以及分隔件，其中箱体具有容纳腔，电池包括本体和设置在本体一侧的极柱，分隔件设于容纳腔，分隔件连接箱体，分隔件分隔容纳腔并形成有第一空间以及第二空间，分隔件开设有多个装配孔，装配孔连通第一空间和第二空间，本体设于第一空间，极柱穿设于装配孔，分隔件靠近本体的一侧设有密封槽，密封槽环绕装配孔，密封槽内设有密封部，密封部密封连接本体和分隔件。装配孔能够快速定位电池安装位置，并使极柱分隔在朝向第二空间的一侧，环绕装配孔的密封槽以及密封连接本体的密封部有利于提高第一空间和装配孔之间的密封效果，避免第一空间和第二空间相互连通，根据需要可通过换热媒介冷却电池，从而保持电池良好的使用温度，有利于提高电池使用的安全性及延长电池的使用寿命。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例1电池包的结构示意图；
图2是本申请实施例1电池包的爆炸图；
图3是图1中沿A-A线的剖视结构示意图；
图4是图3中C部分的局部放大图；
图5是本申请实施例1电池包另一视角的爆炸图；
图6是图5中D部分的局部放大图；
图7是图1中沿B-B线的剖视结构示意图；
图8是本申请实施例1第二框部内及容纳腔内的局部结构示意图；
图9是本申请实施例2电池包的结构示意图；
图10是本申请实施例2电池包的爆炸图；
图11是图9中沿E-E线的剖视结构示意图；
图12是图11中F部分的局部放大图；
图13是本申请实施例2电池包另一视角的爆炸图；
图14是图13中G部分的局部放大图；
图15是本申请实施例3电池包的结构示意图；
图16是本申请实施例3电池包的爆炸图；
图17是图15中沿H-H线的剖视结构示意图；
图18是图17中I部分的局部放大图；
图19是本申请实施例3电池包另一视角的爆炸图；
图20是图19中J部分的局部放大图；
附图标记：1、箱体；10、容纳腔；100、第一空间；101、第二空间；103、第三空间；104、换热流道；1040、第一换热流道；1041、第二换热流道；1042、第三换热流道；105、开口；11、第一底板；12、边框；120、进液腔；121、出液腔；122、汇流腔；123、第一框部；124、第二框部；125、第三框部；126、第四框部；127、第一通口；128、第二通口；129、第三通口；13、第二底板；14、底腔；140、子流道；141、间隙；15、进液口；16、出液口；17、顶板；18、分流件；180、第一端；181、第二端；19、隔板；2、电池；20、本体；200、第一壁；201、第二壁；202、周壁；21、极柱；3、分隔件；30、装配孔；31、密封槽；310、第一槽部；311、第二槽部；312、第三槽部；32、泄压孔；4、密封部；40、第一密封件；41、第二密封件；42、第三密封件；5、第一间隔部；6、第二间隔部；7、侧板；8、控制模块；80、第一插头；81、第二插头；X、第一方向；Y、第二方向；Z、第三方向。
本申请的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。在本申请的描述中，“多个”的含义是两个或两个以上，至少一个指可以为一个、两个或者两个以上，除非另有明确具体的限定。
电池包在日常充放电过程中，电池都会出现发热现象，电池长时间处于高温的状态下会使电池的使用寿命降低，甚至引发电池热失控，进而导致更严重的安全事故，为此，电池包内通常会布置换热板来贴合电池，通过向换热板内引入换热媒介以及时冷却电池，同时，在外部环境温度较低的情况下使用电池时，也能够通过换热媒介加热电池，以保持电池的良好的使用温度，而换热板作为承装换热媒介并实现贴合电池换热的一部分，其本身也会损耗能量。
有鉴于此，结合图1至图20，本申请实施例提供一种电池包，旨在克服上述技术问题的至少一者。
下述每个实施例中，引入有两两相交的第一方向X、第二方向Y和第三方向Z，其中，第一方向X即平行于本实施例中电池包整体的厚度方向，第二方向Y即平行于本实施例中电池包整体的宽度方向，第三方向Z即平行于本实施例中电池包整体的长度方向。
实施例1：
参照图1至图8，电池包包括箱体1、多个电池2以及分隔件3。箱体1具有容纳腔10以及连通容纳腔10的开口105，电池2包括本体20和设置在本体20一侧的极柱21，分隔件3设于容纳腔10，分隔件3连接箱体1，且分隔件3分隔容纳腔10并在第一方向X上形成有第一空间100以及第二空间101，分隔件3开设有多个装配孔30，装配孔30连通第一空间100和第二空间101，本体20设于第一空间100，极柱21穿设于装配孔30，分隔件3靠近本体20的一侧设有密封槽31，密封槽31环绕装配孔30，密封槽31内设有密封部4，密封部4密封连接本体20和分隔件3。
装配孔30能够快速定位电池2安装位置，使极柱21分隔在朝向第二空间101的一侧，环绕装配孔30的密封槽31以及密封连接本体20的密封部4有利于提高第一空间100和装配孔30之间的密封效果，避免第一空间100和第二空间101相互连通，根据需要可通过换热媒介冷却电池2，从而保持电池2良好的使用温度，有利于提高电池2使用的安全性及延长电池2的使用寿命。
具体的，在一些实施例中，参照图1至图4，本体20包括第一壁200、第二壁201以及连接在第一壁200和第二壁201之间的周壁202。本实施例中的电池2以方形电池2为例，可以理解的是，其中周壁202即环绕第一壁200以及第二壁201的四个侧壁，此外本实施例中第一壁200设置为方形电池2的顶盖，极柱21设有两个并由第一壁200穿出，此外，方形电池2的泄压结构同样设置在第一壁200。
对应的，参照图2、图3、图5和图6，分隔件3上对应两个极柱21开设有两个装配孔30，本实施例中极柱21穿过装配孔30并延伸至第二空间101，此外，分隔件3上对应方形电池2的泄压结构还开设有泄压孔32，泄压孔32不与两个装配孔30连通。
第一壁200与分隔件3相贴合，电池2发生热失控时，泄压孔32能够供电池2泄压结构独立泄压排气，降低高温气体排入第一空间100的可能，避免造成其他电池2的损坏，同时便于在箱体1上设置排气结构，避免电池包泄压排气结构需要与第一空间100连通并产生额外的密封需求问题。同时，密封部4连接第一壁200，且本实施例中密封槽31环绕在两个装配孔30以及泄压孔32外侧，密封部4可采用填充至密封槽31内的密封胶，密封槽31配合密封部4形成装配孔30、泄压孔32和第一空间100之间的密封结构，有利于减少第一空间100内通入换热媒介时换热媒介朝向第二空间101渗漏的问题。
参照图1至图3，箱体1包括第一底板11以及环绕第一底板11的边框12，第一底板11和边框12围成容纳腔10，第二壁201连接第一底板11；此外，箱体1还包括用以盖封开口105的顶板17。电池包还包括设于第一空间100的第一间隔部5，第一间隔部5环设于周壁202，第一间隔部5、相邻的电池2、第一底板11和边框12共同围合形成换热流道104，换热流道104与分隔件3之间通过第一间隔部5密封间隔。
可以理解的是，本实施例中第一间隔部5与方形电池2的周壁202形状相适配，即设计为环绕周壁202的框架结构，多个电池2之间通过第一间隔部5相互间隔设置：
其一、能够为相邻电池2的间距提供定位基准，提高电池包组装的便捷性；
其二、第一间隔部5间隔在相邻电池2之间以形成供换热媒介流动的换热流道104，以使换热媒介能够充分接触电池2；
其三、第一间隔部5间隔在相邻电池2之间同时为电池2使用过程中的正常膨胀提供缓冲空间；
其四、第一间隔部5同时能够辅助密封槽31及密封部4进一步提高换热流道104和第二空间101之间的密封效果。
在一些实施例中，参照图2、图3和图5，电池包还包括设于第一空间100的第二间隔部6，第二间隔部6环设于周壁202并与第一间隔部5相间隔，换热流道104位于第一间隔部5和第二间隔部6之间。第二间隔部6与第一间隔部5在第一方向X上相互配合，形成相邻电池2、电池2和箱体1之间的稳定间隔，此外，在电池2置入箱体1前，也可以先将第二间隔部6固定在第一底板11上，从而便于快速定位电池2的布置位置，相较于在第一底板11上额外开设定位槽等结构，有利于简化加工及组装工艺。
此外，需要说明的是，为了保证本体20与换热媒介有较大的换热面积，参照图3和图4，第一间隔部5贴合并密封连接分隔件3，第二间隔部6贴合并密封连接第一底板11。从而保证在第一方向X上换热流道104与周壁202的接触面积，提高换热流道104与电池2的换热效果。
在一些实施例中，参照图3、图5、图7和图8，箱体1还包括第二底板13，第二底板13设于第一底板11背离容纳腔10的一侧，第二底板13连接边框12，且第一底板11、第二底板13以及边框12围成有底腔14，底腔14连通换热流道104，边框12开设有连通换热流道104的进液口15以及连通底腔14的出液口16。即本实施例中箱体1内换热结构共设计有两处，其中一处即第一空间100的多个换热流道104，换热媒介可由进液口15导入后经多个换热流道104与电池2直接接触换热，另一处即换热媒介流入底腔14，从而通过第一底板11与第二壁201间接接触换热。
具体的，在一些实施例中，参照图1至图8，多个电池2在第三方向Z上排布并形成多排，多排电池2在第二方向Y上排列，此时形成有多个换热流道104沿第三方向Z延伸，且沿第二方向Y排列设置。上述的多个换热流道104包括相互连通的第一换热流道1040、第二换热流道1041以及至少一个位于第一换热流道1040和第二换热流道1041之间的第三换热流道1042。如图8中所示，本实施例中第二方向Y上共设置有四排电池2，故示例性的第三换热流道1042设置有三个。此外，需要说明的是，为了便于快速组合整包电池2，实际电池包还包括侧板7，侧板7用以连接在第二方向Y上位于两侧的成排电池2，实际第一换热流道1040和第二换热流道1041也位于成排电池2和该侧板7之间。
如图1、图3和图7所示，边框12内具有相互分隔的进液腔120、出液腔121以及位于出液腔121在第二方向Y两侧的汇流腔122，进液口15连通进液腔120，并通过进液腔120连通第三换热流道1042，出液口16连通出液腔121，并通过出液腔121连通底腔14，第一换热流道1040和第二换热流道1041连通汇流腔122，并通过汇流腔122连通底腔14。即换热媒介由进液口15导入进液腔120后，流经第三换热流道1042后在第二方向Y向两侧的第一换热流道1040、第二换热流道1041流动，有利于提高换热媒介的均匀流动和充分换热效果。
具体的，参照图1至图8，边框12包括在第二方向Y上间隔设置的第一框部123、第三框部125和在第三方向Z上间隔的第二框部124和第四框部126，第二框部124和第四框部126连接在第一框部123和第三框部125之间，进液口15和出液口16分别设于第二框部124，且进液腔120、出液腔121以及汇流腔122位于第二框部124内，第二框部124对应开设有连通汇流腔122和底腔14的第一通口127、连通出液腔121和底腔14的第二通口128以及连通进液腔120和第三换热流道1042的第三通口129。第一换热流道1040位于第一框部123和其中一排电池2之间，第二换热流道1041位于第二框部124和另一排电池2之间。即保证换热媒介流经多个第三换热流道1042后，沿第二方向Y能够到达第一框部123和第三框部125处，以充分与多个电池2进行换热。
在一些实施例中，参照图5，电池包还包括多个分流件18，多个分流件18在第二方向Y上间隔设于底腔14，分流件18连接在第一底板11和第二底板13之间，以分隔底腔14并形成多个子流道140。具体的，分流件18可与第一底板11一体成型并密封连接第二底板13。
参照图1至图8，分流件18在第三方向Z上具有第一端180和第二端181，至少部分分流件18的第一端180连接边框12并分隔在第一通口127和第二通口128之间，且至少部分分流件18的第二端181和边框12之间具有间隙141，以连通相邻子流道140。本实施例中以三个分流件18为例，其中对应两个第一通口127和相邻第二通口128之间分别设置一个分流件18，使该分流件18封堵在第一通口127和第二通口128之间，避免换热媒介导入汇流腔122后直接由出液口16排出，使底腔14内的换热媒介能够由分流件18引导、沿第一方向X充分流动并与电池2间接接触换热，提高换热媒介的换热效果。
此外，需要说明的是，参照图2和图3，电池包还包括设于容纳腔10的隔板19以及控制模块8，本实施例中隔板19设置在分隔件3背离进液口15的一侧，隔板19在第二方向Y延伸并连接第一底板11及边框12，以分隔容纳腔10并形成有与第一空间100相间隔的第三空间103，控制模块8安装于第三空间103，且控制模块8电性连接电池2。
需要说明的是，控制模块8可以是电池控制系统（Battery Management System，简称BMS），也可以是电池断电单元模块（Battery Disconnect Unit，简称BDU），本实施例中以同时布置有BMS和BDU两个控制模块8为例，对应的，如图1所示，边框12背离进液口15设有第一插头80和第二插头81，第一插头80和第二插头81可电性连接控制模块8，第一插头80和第二插头81可以是电池包的高压插头以及低压插头，在此不再赘述。
相应的，本申请实施例提供一种用电设备，该用电设备包括上述的电池包。该用电设备可以为电子设备、蓄电设备、或者动力汽车等设备，可以理解的是，该用电设备可以具有上述电池包的所有技术特征和对应的有益效果，在此不再赘述。
实施例2：
参照图9至图14，本实施例与实施例1的不同之处在于，密封槽31具有环绕装配孔30的第一槽部310以及环绕第一槽部310的第二槽部311，本实施例中示例性的仅开设单个装配孔30并同时使极柱21和泄压结构暴露于第二空间101。密封部4包括设于第一槽部310的第一密封件40以及设于第二槽部311的第二密封件41，第一密封件40以及第二密封件41分别密封连接本体20。
进一步的，第一槽部310和第二槽部311相连通，且第一密封件40连接第二密封件41。具体的，第一密封件40设置为弹性材料，可采用密封泡棉，第二密封件41可采用密封胶。第一密封件40能够与第二密封件41相粘接，第一密封件40依靠自身弹性能够为电池2提供缓冲保护，第二密封件41能够提高第一密封件40的固定效果。第一槽部310和第二槽部311在第一方向X上具有高度差，其中第一槽部310在第一方向X的高度设置大于第二槽部311在第一方向X的高度，以为具有弹性的第一密封件40提供足够的弹性缓冲空间。
在结构上，第一空间100和装配孔30之间依次设置第一密封件40和第二密封件41进行配合双层密封，进一步提高第一空间100和第二空间101之间的密封效果。同时，通过将第一密封件40设置为具有弹性密封泡棉，进一步提高对电池2的缓冲保护效果。
实施例3：
参照图15至图20，本实施例与实施例2的不同之处在于，密封槽31还具有位于第一槽部310靠近装配孔30一侧的第三槽部312，第一槽部310环绕第三槽部312，第三槽部312在第一方向X的设计高度可与第二槽部311相同，密封部4还包括填充于第三槽部312的第三密封件42，第三密封件42密封连接本体20。同样的，第三密封件42可采用与第二密封件41相同的材料，如密封胶材料。
具体的，第一槽部310和第三槽部312相连通，且第一密封件40连接第三密封件42。第一密封件40同样能够与第三密封件42相粘接，进一步提高第一密封件40的固定效果。在结构上，第一空间100和装配孔30之间依次设置第二密封件41、第一密封件40和第三密封件42进行配合三层密封，进一步提高第一空间100和第二空间101之间的密封效果。同时，通过将第一密封件40设置为具有弹性密封泡棉，进一步提高对电池2的缓冲保护效果。
以上对本申请实施例所提供的一种电池包及用电设备进行了详细介绍，并应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述每个实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请每个实施例的技术方案的范围。

Claims (15)

  1. 一种电池包，其中，包括：
    箱体，所述箱体具有容纳腔；
    多个电池，所述电池包括本体和设置在所述本体一侧的极柱；
    分隔件，所述分隔件设于所述容纳腔，所述分隔件连接所述箱体，所述分隔件分隔所述容纳腔并形成有第一空间以及第二空间，所述分隔件开设有多个装配孔，所述装配孔连通所述第一空间和所述第二空间，所述本体设于所述第一空间，所述极柱穿设于所述装配孔，所述分隔件靠近所述本体的一侧设有密封槽，所述密封槽环绕所述装配孔，所述密封槽内设有密封部，所述密封部密封连接所述本体和所述分隔件。
  2. 根据权利要求1所述的电池包，其中，
    所述本体包括第一壁、第二壁以及连接在所述第一壁和所述第二壁之间的周壁，所述极柱设于所述第一壁，且所述密封部连接所述第一壁；
    所述箱体包括第一底板以及环绕所述第一底板的边框，所述第一底板和所述边框围成所述容纳腔，所述第二壁连接所述第一底板；
    所述电池包还包括设于所述第一空间的第一间隔部，所述第一间隔部环设于所述周壁，所述第一间隔部、相邻的所述电池、所述第一底板和所述边框共同围合形成换热流道，所述换热流道与所述分隔件之间通过所述第一间隔部密封间隔。
  3. 根据权利要求1所述的电池包，其中，
    所述密封槽具有环绕所述装配孔的第一槽部以及环绕所述第一槽部的第二槽部；
    所述密封部包括设于所述第一槽部的第一密封件以及设于所述第二槽部的第二密封件，所述第一密封件以及所述第二密封件分别密封连接所述本体。
  4. 根据权利要求3所述的电池包，其中，
    所述密封槽还具有位于所述第一槽部靠近所述装配孔一侧的第三槽部，所述第一槽部环绕所述第三槽部；
    所述密封部还包括填充于所述第三槽部的第三密封件，所述第三密封件密封连接所述本体。
  5. 根据权利要求4所述的电池包，其中，
    所述第一槽部和第二槽部相连通，且所述第一密封件连接所述第二密封件；
  6. 根据权利要求4所述的电池包，其中，
    所述第一槽部和所述第三槽部相连通，且所述第一密封件连接所述第三密封件。
  7. 根据权利要求2所述的电池包，其中，
    所述电池包还包括设于所述第一空间的第二间隔部，所述第二间隔部环设于所述周壁并与所述第一间隔部相间隔，所述换热流道位于所述第一间隔部和所述第二间隔部之间。
  8. 根据权利要求2所述的电池包，其中，
    所述第一间隔部密封连接所述分隔件。
  9. 根据权利要求7所述的电池包，其中，
    所述第二间隔部密封连接所述第一底板。
  10. 根据权利要求2所述的电池包，其中，
    所述箱体还包括第二底板，所述第二底板设于所述第一底板背离所述容纳腔的一侧，所述第二底板连接所述边框，且所述第一底板、所述第二底板以及所述边框围成有底腔，所述底腔连通所述换热流道，所述边框开设有连通所述换热流道的进液口以及连通所述底腔的出液口。
  11. 根据权利要求10所述的电池包，其中，
    所述电池包具有两两相交的第一方向、第二方向以及第三方向，所述第一空间和所述第二空间在所述第一方向上排列设置，多个所述电池在所述第三方向上排布并形成多排，多排所述电池在所述第二方向上排列；
    多个所述换热流道沿所述第三方向延伸，且沿所述第二方向排列设置，多个所述换热流道包括相互连通的第一换热流道、第二换热流道以及至少一个位于所述第一换热流道和所述第二换热流道之间的第三换热流道；
    所述边框内具有相互分隔的进液腔、出液腔以及位于所述出液腔在所述第二方向两侧的汇流腔，所述进液口连通所述进液腔，并通过所述进液腔连通所述第三换热流道，所述出液口连通所述出液腔，并通过所述出液腔连通所述底腔，所述第一换热流道和所述第二换热流道连通所述汇流腔，并通过所述汇流腔连通所述底腔。
  12. 根据权利要求11所述的电池包，其中，
    所述边框包括在所述第二方向上间隔设置的第一框部、第三框部以及连接在所述第一框部和所述第三框部之间的第二框部，所述进液口和所述出液口分别设于所述第二框部，且所述进液腔、所述出液腔以及所述汇流腔位于所述第二框部内；
    所述第一换热流道位于所述第一框部和其中一排所述电池之间，所述第二换热流道位于所述第二框部和另一排所述电池之间。
  13. 根据权利要求11所述的电池包，其中，
    所述电池包还包括多个分流件，多个所述分流件在所述第二方向上间隔设于所述底腔，所述分流件连接在所述第一底板和所述第二底板之间，以分隔所述底腔并形成多个子流道；
    所述分流件在所述第三方向上具有第一端和第二端，所述边框开设有连通所述汇流腔和所述底腔的第一通口以及连通所述出液腔和所述底腔的第二通口，至少部分所述分流件的所述第一端连接所述边框并分隔在所述第一通口和所述第二通口之间，且至少部分所述分流件的所述第二端和所述边框之间具有间隙，以连通相邻所述子流道。
  14. 根据权利要求11所述的电池包，其中，
    所述电池包还包括设于所述容纳腔的隔板以及控制模块，所述隔板在所述第二方向延伸并连接所述第一底板和所述边框，以分隔所述容纳腔并形成有第三空间，所述第三空间和所述第一空间相间隔，所述控制模块设于所述第三空间，所述控制模块电性连接所述电池。
  15. 一种用电设备，包括如权利要求1至14中任一项所述的电池包。
PCT/CN2024/115622 2023-12-15 2024-08-29 一种电池包及用电设备 Pending WO2025123792A1 (zh)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204333162U (zh) * 2014-12-08 2015-05-13 江苏港星方能超声洗净科技有限公司 一种电池冷却装置
CN111009626A (zh) * 2018-10-08 2020-04-14 三星Sdi株式会社 电池组
CN113782879A (zh) * 2020-05-22 2021-12-10 比亚迪股份有限公司 电池包及电动车
CN115911494A (zh) * 2022-11-24 2023-04-04 厦门海辰储能科技股份有限公司 电池模组、其装配方法及电池包
WO2023164993A1 (zh) * 2022-03-03 2023-09-07 宁德时代新能源科技股份有限公司 热管理部件、电池及用电装置
WO2023198012A1 (zh) * 2022-04-14 2023-10-19 宁德时代新能源科技股份有限公司 电池和用电设备
CN220138420U (zh) * 2023-04-20 2023-12-05 浙江凌骁能源科技有限公司 浸没式电池冷却装置
CN117638347A (zh) * 2023-12-15 2024-03-01 欣旺达动力科技股份有限公司 一种电池包及用电设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8563154B2 (en) * 2009-05-06 2013-10-22 GM Global Technology Operations LLC Battery assembly with immersed cell temperature regulating
KR102258178B1 (ko) * 2017-10-27 2021-06-03 주식회사 엘지에너지솔루션 냉각 및 조립 구조를 단순화시킨 배터리 모듈 및 그 제조방법
CN113437402B (zh) * 2021-06-02 2023-03-31 广州小鹏汽车科技有限公司 电池模组、电池模组总成以及热交换装置
KR102648405B1 (ko) * 2021-06-18 2024-03-18 니구옌딘흉 침지 냉각 방식을 사용한 배터리 팩

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204333162U (zh) * 2014-12-08 2015-05-13 江苏港星方能超声洗净科技有限公司 一种电池冷却装置
CN111009626A (zh) * 2018-10-08 2020-04-14 三星Sdi株式会社 电池组
CN113782879A (zh) * 2020-05-22 2021-12-10 比亚迪股份有限公司 电池包及电动车
WO2023164993A1 (zh) * 2022-03-03 2023-09-07 宁德时代新能源科技股份有限公司 热管理部件、电池及用电装置
WO2023198012A1 (zh) * 2022-04-14 2023-10-19 宁德时代新能源科技股份有限公司 电池和用电设备
CN115911494A (zh) * 2022-11-24 2023-04-04 厦门海辰储能科技股份有限公司 电池模组、其装配方法及电池包
CN220138420U (zh) * 2023-04-20 2023-12-05 浙江凌骁能源科技有限公司 浸没式电池冷却装置
CN117638347A (zh) * 2023-12-15 2024-03-01 欣旺达动力科技股份有限公司 一种电池包及用电设备

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