WO2022228565A1 - 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
WO2022228565A1
WO2022228565A1 PCT/CN2022/090463 CN2022090463W WO2022228565A1 WO 2022228565 A1 WO2022228565 A1 WO 2022228565A1 CN 2022090463 W CN2022090463 W CN 2022090463W WO 2022228565 A1 WO2022228565 A1 WO 2022228565A1
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WO
WIPO (PCT)
Prior art keywords
battery pack
hole
circuit board
battery
cell
Prior art date
Application number
PCT/CN2022/090463
Other languages
English (en)
French (fr)
Inventor
徐卫潘
刘小平
彭芳桂
杨典
Original Assignee
东莞新能安科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞新能安科技有限公司 filed Critical 东莞新能安科技有限公司
Priority to EP22795034.2A priority Critical patent/EP4333160A1/en
Publication of WO2022228565A1 publication Critical patent/WO2022228565A1/zh
Priority to US18/497,184 priority patent/US20240063469A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • 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
    • H01M10/6562—Gases with free flow by convection only
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • 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 embodiments of the present application relate to the technical field of batteries, and in particular, to a battery pack and electrical equipment.
  • a battery pack is installed inside the agricultural drone or power tool to supply power. Because the agricultural drone or power tool is usually charged and discharged at a high rate, it has the working condition of multiple continuous use in a short period of time. The core temperature is high. If the battery pack is charged at this time, there is a great safety hazard, which is very unsafe. It is necessary to wait for the battery core temperature to drop to the rechargeable temperature before charging the battery pack.
  • the inventor of the present application found that since the agricultural drone or electric tool is charged and discharged at a high rate, after repeated use, the temperature of the battery cell of the battery pack is relatively high, so the user needs to wait for a long time.
  • the battery pack can be charged only after the battery cell is cooled to a rechargeable temperature.
  • the heat dissipation of the battery pack is poor, which is very inconvenient, and the user experience is poor.
  • the embodiments of the present application provide a battery pack and electrical equipment, which improve the above-mentioned high-rate charge and discharge of agricultural drones or electric tools, and the temperature of the cells of the battery pack is relatively high after repeated use. , and the user needs to wait for a long time for the battery cell to cool down to the rechargeable temperature before charging the battery pack, the heat dissipation of the battery pack is poor, and the user experience is poor.
  • a battery pack including: an upper case, a lower case, a cell assembly, a circuit board and a first member.
  • the lower case is provided with a battery cavity
  • the cell assembly is disposed in the battery cavity
  • the circuit board is connected to the cell assembly
  • the circuit board is located between the upper case and the lower case
  • the first member is provided with a first through hole penetrating through the first member, the first through hole is located between the circuit board and the battery core assembly, and the first through hole communicates with the outside air.
  • the first member can be used to cool the battery cell, which is convenient for multiple charging and use of the battery cell.
  • the first through hole of the first member communicates with the outside air, and the first through hole can discharge the heat inside the first member.
  • the user can use the external ventilation element to be arranged at the first through hole of the first member to accelerate the heat dissipation of the first member and improve the heat dissipation of the first member.
  • the cell assembly includes a plurality of cells stacked in sequence along the first direction, and the cell includes an electrode assembly, a cell casing for accommodating the electrode assembly, and an electrode assembly.
  • one end of the tab is connected to the electrode assembly, the other end of the tab protrudes from the cell housing, and the first through hole is located between the circuit board and the tab .
  • the heat generated by the circuit board and the tabs can be conducted to the first member, and the heat can be discharged out of the first member through the first through hole on the first member.
  • the first member extends into the first through hole with a plurality of tooth pieces, the plurality of tooth pieces are arranged in the first through hole at intervals along the second direction, and the A plurality of tooth pieces separate the first through hole to form a plurality of channels.
  • the plurality of passages can increase the heat dissipation area of the first member and increase the contact area between the first member and the outside air.
  • the first through hole penetrates the first member along the first direction or the second direction.
  • the battery pack further includes a first gasket, the first gasket is disposed between the first member and the tabs of the battery cells, and the first gaskets are respectively Abutting against the first member and the tab of the battery core.
  • the first gasket can be used to conduct the heat generated by the tabs of the cell to the first member, so as to reduce the temperature of the tabs of the cell.
  • the battery pack further includes a filler, the filler is disposed on the cell assembly, and the filler is connected to the first member.
  • the filler can be used to conduct the heat generated by the cell to the first member, so as to reduce the temperature of the cell body.
  • the first member is further provided with a second through hole;
  • the battery pack further includes a circuit board and a connecting wire, the circuit board is provided on the first member away from the lower case One end of the connecting wire is connected to the tab of the battery core, and the other end of the connecting wire is connected to the circuit board after passing through the second through hole, and the second through hole is convenient for The connecting wire passes through the connecting circuit board, and the connecting wire is used to electrically connect the circuit board and the tabs of the cell.
  • a surface of the first member facing away from the lower case is provided with a groove, the second through hole communicates with the groove, and the circuit board is accommodated in the groove .
  • the groove is used for receiving the circuit board.
  • the battery pack includes a second gasket, the second gasket is disposed in the groove, and the second gasket is disposed on the first gasket along a third direction Between the component and the circuit board, the second gasket abuts against the circuit board and the first component, respectively.
  • the second spacer is used to conduct heat generated by the circuit board to the first member.
  • the upper case covers the notch of the groove, and the through hole is exposed between the lower case and the upper case.
  • the upper case covers the notch of the groove, prevents the circuit board disposed in the groove from being exposed to the air, reduces the contact between the circuit board and external components, and avoids short circuit of the circuit board.
  • the material of the second gasket is insulating and thermally conductive adhesive.
  • the first through hole penetrates the first member along the first direction or the second direction.
  • an electrical device including the battery pack as described above.
  • the beneficial effects of the embodiments of the present application are: different from the situation in the prior art, the embodiments of the present application are provided with an upper case, a lower case, a cell assembly, a circuit board and a first member, the lower case is provided with a battery cavity, and the cell is provided with a battery cavity.
  • the assembly is arranged in the battery cavity, the circuit board is connected to the battery core assembly, the circuit board is located between the upper shell and the lower shell, the first member is provided with a first through hole penetrating the first member, so The first through hole is located between the circuit board and the battery core assembly, and the first through hole is in circulation with the outside air.
  • the temperature of the battery core after the battery pack has been used for many times is determined.
  • the first component can be used to cool down the battery core and the circuit board, shortening the time for the battery core to cool to the rechargeable temperature, the first through hole of the first component communicates with the outside air, and the first through hole
  • the heat inside the first member can be exhausted from the first member, and at the same time, the user can also set the external air exhauster at the first through hole of the first member to accelerate the heat dissipation of the first member and improve the heat dissipation effect of the first member. convenient.
  • FIG. 1 is a schematic diagram of the overall structure assembly of a battery pack according to an embodiment of the present application
  • FIG. 2 is an exploded schematic diagram of the overall structure of the battery pack according to the embodiment of the present application.
  • FIG. 3 is a side cross-sectional view of the overall structure of the battery pack according to the embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a first component of a battery pack according to an embodiment of the present application.
  • FIG 5 is another structural schematic diagram of the first component of the battery pack according to the embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a first component of another embodiment of the battery pack of the present application.
  • FIG. 7 is another exploded schematic diagram of the overall structure of the battery pack according to the embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a single cell of a battery pack according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a filler of a battery pack according to an embodiment of the present application.
  • FIG 10 is another cross-sectional view of the overall structure side of the battery pack according to the embodiment of the present application.
  • Fig. 11 is the enlarged schematic diagram of the structure at place A in Fig. 10;
  • FIG. 12 is a graph of the temperature rise of the battery cell body of a conventional structure battery pack
  • FIG. 13 is a graph showing the temperature rise of the battery cell itself of the battery pack according to the embodiment of the present application.
  • FIG. 14 is a graph showing the temperature rise of the cell tabs of a battery pack with a traditional structure
  • FIG. 15 is a graph showing the temperature rise of the cell tabs of the battery pack according to the embodiment of the present application.
  • FIG. 16 is a comparison diagram of the temperature rise curve of the MOS tube of the BMS heating element of the battery pack of the conventional structure and the battery pack of the embodiment of the present application.
  • the battery pack 01 includes: a lower case 10 , a cell assembly 20 , a first member 30 and an upper case 90 .
  • the battery pack 01 further includes a first gasket 40 , a filler 50 , a circuit board 60 , a connecting wire 70 , and a second gasket 80 .
  • the cell assembly 20 is disposed in the lower case 10, the cell assembly 20 partially passes through the filler 50, the first gasket 40 is disposed on the filler 50, and the first gasket 40 Abutting with the part of the cell assembly 20 passing through the filler 50 , the first member 30 is fixed with the filler 50 , the first member 30 is located on the first gasket 40 , and the second gasket 80 is provided On the first member 30 , the circuit board 60 is disposed on the second gasket 80 , the connecting wires 70 are respectively electrically connected with the cell assembly 20 and the circuit board 60 , and the upper shell 90 is covered with on the first member 30 .
  • the first gasket 40 and the second gasket 80 have thermal conductivity for guiding the heat of the circuit board 60 and the cell assembly 20 to the first member 30 , and the first member 30 is exposed between the lower case 10 and the upper case 90 , the first member 30 can directly exchange heat with the outside world, which is beneficial to improve the heat dissipation effect of the first member 30 on the circuit board and the battery core assembly 20 .
  • the structure of the battery pack 01 will be described with reference to the X, Y, and Z coordinate axes, wherein the X, Y, and Z coordinate axes are perpendicular to each other.
  • the first member 30 includes a first side plate 302 , a second side plate 303 , a third side plate 304 , a fourth side plate 305 and a bottom plate 306 .
  • the first side plate 302 , the second side plate 303 , the third side plate 304 and the fourth side plate 305 are connected end to end in sequence and surround the bottom plate 306 .
  • the first side plate 302 and the third side plate 304 are arranged opposite to each other, and the second side plate 303 and the fourth side plate 305 are arranged opposite to each other.
  • the first side plate 302 , the second side plate 303 , the third side plate 304 , the fourth side plate 305 and the bottom plate 306 also jointly enclose a groove 308 .
  • the groove 308 is used for receiving the circuit board 60 and the second gasket 80 .
  • the first member 30 is further provided with second through holes 3061 penetrating through the bottom plate 306 , the second through holes 3061 are disposed at both ends of the bottom plate 306 , and the second through holes 3061 are respectively connected with the second side plate 303 and the fourth side plate 305 are arranged adjacent to each other, the second through hole 3061 is communicated with the groove 308, and the second through hole 3061 is used for the connecting wire 70 to pass through.
  • the first member 30 is made of metal, such as aluminum alloy, copper alloy, and the like.
  • the second side plate 303 extends with a first fixing portion 3031 and a second fixing portion 3032 , the first fixing portion 3031 and the second fixing portion 3032 are arranged at intervals, and one end of the first fixing portion 3031 is provided with a first fixing portion 3031 .
  • the fixing hole 3031 a and one end of the second fixing portion 3032 are provided with a second fixing hole 3032 a , and the first fixing hole 3031 a and the second fixing hole 3032 a are used for fixing with one end of the upper case 90 .
  • the fourth side plate 305 extends a third fixing portion 3051 and a fourth fixing portion 3052, the third fixing portion 3051 and the fourth fixing portion 3052 are arranged at intervals, and one end of the third fixing portion 3051 is provided with a third fixing hole 3051a.
  • One end of the fixing part 3052 is provided with a fourth fixing hole 3052 a , and the third fixing hole 3051 a and the fourth fixing hole 3052 a are used for fixing with the other end of the upper case 90 .
  • the first member 30 is further provided with a first through hole 301 penetrating the first side plate 302 , the bottom plate 306 and the third side plate 304 .
  • a plurality of tooth pieces 3021 extend from the first side plate 302 toward the first through hole 301 .
  • the plurality of tooth pieces 3021 are spaced apart from the first through hole along the second direction.
  • the plurality of tooth pieces 3021 The first through holes 301 are divided to form a plurality of channels 301a, and the second direction is perpendicular to the first direction.
  • the first through hole 301 penetrates the first member 30 along the first direction or the second direction.
  • the first through hole 301 is exposed between the lower case 10 and the upper case 90, in other words, a plurality of channels 301a are exposed between the lower case 10 and the upper case 90, and a plurality of channels 301a are exposed between the lower case 10 and the upper case 90.
  • the channel 301a is used for the outside air to flow through, and the air flowing through the plurality of channels 301a will take away the heat of the first member 30 to improve the efficiency of heat exchange between the first member 30 and the outside world, thereby improving the heat dissipation effect.
  • the teeth 3021 can increase the heat dissipation area of the first member 30 and increase the contact area between the first member 30 and the air, thereby improving the heat dissipation efficiency of the first member 30 .
  • the battery pack 01 may further include a fan (not shown), the fan is installed on the first member 30, and the air outlet of the fan is aligned with the port at one end of the plurality of channels 301a, and the fan Air is blown to the plurality of channels 301a to speed up the flow speed of the airflow in the plurality of channels 301a, thereby improving the heat dissipation efficiency.
  • a fan not shown
  • the tooth pieces 3021 may not be provided, and only the first through holes 301 may be provided, and the first through holes 301 allow the outside air to flow through, as shown in FIG. 6 .
  • the number of the first through holes 301 is not limited, for example, one of the first through holes 301 penetrates through the first side plate 302 , the bottom plate 306 and the third side plate 304 , and the other first through hole 301 may be The two first through holes 301 penetrate through the second side plate 303 , the bottom plate 306 and the fourth side plate 305 , and the two first through holes 301 communicate with each other, which can accelerate the flow of the air flow in the first member 30 and improve the heat dissipation effect of the first member 30 .
  • the first through hole 301 is not limited to be provided only through the first side plate 302 , the bottom plate 306 and the third side plate 304 , that is, the first through hole 301 penetrates through the first member 30 along the first direction
  • the first through hole 301 can also be arranged to only penetrate the second side plate 303 , the bottom plate 306 and the fourth side plate 305 , that is, the first through hole 301 penetrates the first side plate 301 along the second direction. member 30.
  • the cell assembly 20 includes a plurality of cells 201 stacked in sequence along the first direction, and the cells 201 are used to communicate with the circuit board 60 . electrical connection.
  • the cell 201 includes an electrode assembly 2011 , a cell case 2012 for accommodating the electrode assembly 2011 , and a tab 2013 .
  • One end of the tab 2013 is connected to the electrode assembly 2011, and the other end of the tab 2013 protrudes from the cell shell 2012, and the cell shell 2012 is used to seal the electrode assembly 2011 to restrict external water vapor from entering the cell. inside the core housing 2012.
  • the tabs 2013 include positive tabs and negative tabs, and the plurality of cells 201 are connected through the positive tabs and the negative tabs.
  • the filler 50 is provided with a cavity 501 and a plurality of third through holes 501 a , and the plurality of third through holes 501 a communicate with the cavity 501 .
  • the filler 50 is disposed on the cell assembly 20, the positive and negative tabs of a cell 201 pass through the two third through holes 501a and are inserted into the cavity 501 respectively, and the plurality of cells 201 The tabs are connected within the cavity.
  • the filler 50 is formed by curing the thermally conductive adhesive poured into the top seal of the battery cell 201 , and the filler, the first gasket 40 and the first member 30 are formed after curing. Adhesive fixation.
  • the filler 50 since the filler 50 has thermal conductivity, the filler 50 can conduct the heat generated by the battery cells 201 to the first member 30, and then dissipate the heat to the outside through the first member 30, so as to reduce the The purpose of the temperature of the cell 201.
  • the manufacturing material of the filler 50 is not limited to the above-mentioned thermally conductive structural adhesive, and can also be made of other materials, as long as the filler 50 satisfies the thermal conductivity and insulating effect of the cell 201 , such as thermally conductive gel.
  • the first gasket 40 is disposed between the first member 30 and the tab 2013 of the cell 201 and the first gasket 40 is in contact with the first member 30 and the tab 2013 of the battery cell 201 respectively.
  • the first gasket 40 has thermal conductivity, the heat generated by the tab 2013 of the battery cell 201 is conducted to the first member 30 through the first gasket 40 , and the first member 30 emits the outside, thereby reducing the temperature of the tab 2013 of the battery cell .
  • the first gasket 40 is an insulating and thermally conductive gasket, and the insulating and thermally conductive gasket also plays an insulating role to prevent the first member 30 from contacting the cell 201 and causing a short circuit of the cell 201 .
  • the gasket can also increase the thermal conductivity between the cell tabs 2013 and the first member, and improve the heat dissipation effect of the first member on the cell tabs 2013 .
  • the second gasket is disposed in the groove 308, the second gasket 80 is disposed between the bottom plate 306 and the circuit board 60 along the third direction, and the second gasket 80 is respectively connected to the circuit board 60.
  • the circuit board 60 is in contact with the bottom plate 306 .
  • the second gasket 80 has thermal conductivity, and the second gasket 80 is used for conducting the heat generated by the circuit board 60 to the first member 30 , and the first member 30 dissipates the heat to the outside. , so as to achieve the purpose of reducing the temperature of the circuit board 60 .
  • the second gasket 80 is made of insulating and thermally conductive adhesive, and the thermally conductive adhesive can conduct heat generated by the circuit board 60 to the first member 30 , and at the same time, can also serve as insulation It can prevent the circuit board 60 from being short-circuited due to direct contact between the circuit board 60 and the first member 30 .
  • the first direction refers to the direction along the X-axis.
  • the first direction is the thickness direction of the battery cell 201 .
  • the second direction refers to the direction along the Y-axis.
  • the third direction refers to the direction along the Z axis.
  • the circuit board 60 is accommodated in the groove 308 , so that the circuit board 60 is disposed on a surface of the first member 30 away from the lower case 10 .
  • One end of the connecting wire 70 is connected to the tab 2013 of the battery cell 201 , and the other end of the connecting wire 70 is connected to the circuit board 60 after passing through the second through hole 3061 to realize the circuit
  • the board 60 is electrically connected to the battery core 201 .
  • the circuit board 60 is a Battery Management System (BMS) board, and the BMS board is used to control the charging and discharging of the cell assembly 20 .
  • BMS Battery Management System
  • the lower case 10 is provided with a battery cavity 10a, and the battery cavity 10a is used to accommodate the battery cell assembly 20, and the upper case 90 and the The first member 30 is connected, and the upper shell 90 covers the notch of the groove 308 .
  • the upper shell 90 covers the notch of the groove 308 to prevent the circuit board 60 disposed in the groove 308 from being exposed to the air, reducing the contact between the circuit board 60 and external components, so as to avoid short circuit of the circuit board 60,
  • the upper case 90 plays an insulating and protective role for the circuit board 60 .
  • the lower case 10 can protect the battery cell assembly 20 accommodated in the battery cavity 10a, and limit the damage to the battery cell assembly 20 caused by external components. It can be understood that, the fixing method of the upper shell 90 and the first member 30 may be screw connection, welding, or the like.
  • the assembling process of the battery pack 01 includes: placing the cell assembly 20 in the battery cavity 10a of the lower case 10, with the cell assembly 20 and the opening of the battery cavity 10a separated by a predetermined space, and then placing the first gasket 40 with the opening of the battery cavity 10a.
  • the tabs 2013 of the battery cells 201 are in contact with each other, and then the thermally conductive adhesive is poured, and the thermally conductive adhesive fills the preset space.
  • the second gasket 80 is disposed in the first member 30 and fixed with the first member 30
  • the circuit board 60 is disposed on the second gasket 80 and fixed with the second gasket 80
  • the upper shell 90 is fixed with the first gasket 80 .
  • a component 30 is fixed, wherein the filler 50 is formed after the thermally conductive adhesive is cured.
  • the present application also provides a related comparative test between a battery pack with a traditional structure (without the first component) and the battery pack of the present application.
  • the specific test process is as follows:
  • the thermal simulation analysis method is used to simulate the temperature distribution of the battery pack of the present application and the battery pack of the traditional structure under the same working conditions.
  • Test materials traditional structure battery packs, battery packs of the present application, both of which are provided with 14 cells.
  • Test conditions The simulation condition is 35°C, the charging rate of the battery pack is 5C, the discharge is the actual current condition of the user, and the continuous cycle of charge and discharge is 8 cycles without standing, and the external ambient wind speed is 2m/s.
  • the battery pack using the heat dissipation structure of the present application has better heat dissipation effect than the battery pack with the traditional structure, which can not only realize the cooling of the cell body, the cell tabs and the BMS heating components, but also solves the problem of no static electricity in the battery pack.
  • the problem that the temperature of the battery cell is too high when it is placed in the multi-cycle continuous charge and discharge condition enables the battery pack to achieve multi-cycle continuous charge and discharge without standing, which is more convenient.
  • the lower case 10 is provided with a battery cavity 10 a
  • the cell assembly 20 is provided in the battery cavity 10 a
  • the circuit board 60 is connected to the cell assembly 20
  • the circuit board 60 is located between the upper case 90 and the lower case 10
  • the first member 30 is provided with a first through hole penetrating the first member 30 .
  • the first through hole 301 is located between the circuit board and the battery core assembly 20, and the first through hole 301 communicates with the outside air. In this way, during the use of the battery pack, there are many battery packs.
  • the first member 30 can be used to cool the battery cell 201 and the circuit board 60 to shorten the time for the battery cell 201 to cool to the rechargeable temperature.
  • the first through hole 301 of the first through hole 301 is in circulation with the outside air, and the first through hole 301 can discharge the heat inside the first member 30 out of the first member 30 .
  • the heat dissipation of the first member 30 is accelerated, and the heat dissipation effect of the first member 30 is improved, which is convenient.
  • the application also provides an embodiment of an electrical device, the electrical device includes the above battery pack, and the electrical device includes but is not limited to agricultural drones, two-wheeled electric vehicles, energy storage devices, hand-held power tools, etc. , the function and structure of the battery pack can be referred to the above-mentioned embodiments, which will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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Abstract

本申请实施例涉及电池技术领域，特别公开了一种电池包及用电设备，包括上壳、下壳、电芯组件、电路板和第一构件，所述下壳设置有电池腔，所述电芯组件设置于所述电池腔内，所述电路板与所述电芯组件连接，所述电路板位于所述上壳和下壳之间，第一构件设置有贯穿所述第一构件的第一通孔，所述第一通孔位于所述电路板和所述电芯组件之间，所述第一通孔与外界空气流通。通过上述方式，本申请实施例能够利用第一构件的第一通孔对电芯进行降温，同时，用户也可将外界吹风件或抽风件设于第一构件的第一通孔处，加速第一构件的散热，较为便利。

Description

一种电池包及用电设备
相关申请的交叉参考
本申请要求于2021年04月30日提交中国专利局，申请号为202110484645.7，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
本申请实施例涉及电池技术领域，特别是涉及一种电池包及用电设备。
背景技术
农用无人机或电动工具内部安装有电池包为其供电，由于农用无人机或电动工具通常为高倍率充放电，具有在短时间内多次连续使用的工况，由此电池包内部电芯温度较高，若此时给电池包充电存在较大的安全隐患，非常不安全，需等电芯温度降低至可充电温度才可对电池包进行充电。
申请内容
本申请的发明人在实现本申请的过程中，发现：由于农用无人机或电动工具为高倍率充放电，多次使用过后，电池包的电芯温度较高，从而用户需要等待较长时间待电芯冷却至可充电温度才可对电池包进行充电，电池包的散热较差，非常不方便，用户体验较差。
鉴于上述问题，本申请实施例提供了一种电池包及用电设备，改善了上述由于农用无人机或电动工具为高倍率充放电，在多次使用过后，电池包的电芯温度较高，且用户需要等待较长时间待电芯冷却至可充电温度才可对电池包进行充电，电池包的散热较差，用户体验较差等问题。
根据本申请实施例的一个方面，提供了一种电池包，包括：上壳、下壳、电芯组件、电路板和第一构件。所述下壳设置有电池腔，所述电芯组件设置于所述电池腔内，所述电路板与所述电芯组件连接，所述电路板位于所述上壳和下壳之间，所述第一构件设置有贯穿所述第一构件的第一通孔，所述第一通孔位于所述电路板和所述电芯组件之间，所述 第一通孔与外界空气流通。利用所述第一构件可对电芯进行降温，便于电芯的多次充电使用，第一构件的第一通孔与外界空气流通，第一通孔可将第一构件内部的热量排出所述第一构件，同时，用户可利用外界抽风件设于第一构件的第一通孔处，加速第一构件的散热，提高第一构件的散热。
在一种可选的方式中，所述电芯组件包括多个沿第一方向依次堆叠设置的电芯，所述电芯包括电极组件、用于容纳所述电极组件的电芯壳体以及极耳，所述极耳的一端与所述电极组件连接，所述极耳的另一端从所述电芯壳体伸出，所述第一通孔位于所述电路板和所述极耳之间。所述电路板和所述极耳产生的热量可传导至第一构件，并利用第一构件上第一通孔将热量排出第一构件。
在一种可选的方式中，所述第一构件朝所述第一通孔内延伸有若干齿片，所述若干齿片沿第二方向间隔设置于所述第一通孔内，所述若干齿片将所述第一通孔分隔形成若干通道。所述若干通道可增大第一构件的散热面积，提高第一构件与外界空气的接触面积。
在一种可选的方式中，所述第一通孔沿第一方向或第二方向贯穿第一构件。在一种可选的方式中，所述电池包还包括第一垫片，所述第一垫片设置于所述第一构件和电芯的极耳之间，并且所述第一垫片分别与所述第一构件和电芯的极耳抵接。所述第一垫片可用于将电芯的极耳产生的热量传导给所述第一构件，起到降低电芯极耳温度的作用。
在一种可选的方式中，所述电池包还包括填充件，所述填充件设置于所述电芯组件，所述填充件与所述第一构件连接。所述填充件可用于将电芯产生的热量传导给所述第一构件，起到降低电芯本体温度的作用。
在一种可选的方式中，所述第一构件还设置有第二通孔；所述电池包还包括电路板和连接线，所述电路板设置于所述第一构件背离所述下壳的一表面，所述连接线的一端与所述电芯的极耳连接，所述连接线的另一端穿过所述第二通孔后与所述电路板连接，所述第二通孔便于连接线穿过连接电路板，所述连接线用于将电路板和电芯的极耳电连接。
在一种可选的方式中，所述第一构件背离所述下壳的一表面设置有凹槽，所述第二通孔连通所述凹槽，所述电路板收容于所述凹槽内。所述凹槽用于***述电路板。
在一种可选的方式中，所述电池包包括第二垫片，所述第二垫片设置于所述凹槽内，且所述第二垫片沿第三方向设置于所述第一构件和所述电路板之间，所述第二垫片分别与所述电路板和所述第一构件抵接。所述第二垫片用于将所述电路板产生的热量传导给所述第一构件。
在一种可选的方式中，所述上壳盖合所述凹槽的槽口，所述通孔暴露于所述下壳和上壳之间。所述上壳遮盖所述凹槽的槽口，防止设于凹槽内的电路板暴露于空气中，减少所述电路板与外界部件的接触，以免造成电路板短路。
在一种可选的方式中，所述第二垫片的材料为绝缘导热胶。
在一种可选的方式中，所述第一通孔沿所述第一方向或所述第二方向贯穿所述第一构件。
根据本申请实施例的另一个方面，提供了一种用电设备，包括如上所述的电池包。
本申请实施例的有益效果是：区别于现有技术的情况，本申请实施例通过设置有上壳、下壳、电芯组件、电路板和第一构件，下壳设置有电池腔，电芯组件设置于电池腔内，所述电路板与所述电芯组件连接，所述电路板位于所述上壳和下壳之间，第一构件设置有贯穿第一构件的第一通孔，所述第一通孔位于所述电路板和所述电芯组件之间，所述第一通孔与外界空气流通，这样设置，在电池包使用过程中，电池包多次使用过后的电芯温度以及电路板温度较高时，可利用第一构件对电芯以及电路板进行降温，缩短电芯冷却至可充电温度的时间，第一构件的第一通孔与外界空气流通，第一通孔可将第一构件内部的热量排出第一构件，同时，用户也可将外界抽风件设于第一构件的第一通孔处，加速第一构件的散热，提高第一构件的散热效果，较为便利。
附图说明
为了更清楚地说明本申请具体实施例或现有技术中的技术方案，下面将对具体实施例或现有技术描述中所需要使用的附图作简单地介绍。在所有附图中，类似的元件或部分一般由类似的附图标记标识。附图中，各元件或部分并不一定按照实际的比例绘制。
图1是本申请实施例电池包的整体结构组装示意图；
图2是本申请实施例电池包的整体结构***示意图；
图3是本申请实施例电池包的整体结构侧面剖视图；
图4是本申请实施例电池包的第一构件结构示意图；
图5是本申请实施例电池包的第一构件又一结构示意图；
图6是本申请电池包另一实施例的第一构件结构示意图；
图7是本申请实施例电池包的整体结构又一***示意图；
图8是本申请实施例电池包的单个电芯结构示意图；
图9是本申请实施例电池包的填充件的结构示意图；
图10是本申请实施例电池包的整体结构侧面又一剖视图；
图11是图10中A处结构放大示意图；
图12是传统结构电池包的电芯本体温升曲线图；
图13是本申请实施例电池包的电芯本体温升曲线图；
图14是传统结构电池包的电芯极耳温升曲线图；
图15是本申请实施例电池包的电芯极耳温升曲线图；
图16是传统结构电池包和本申请实施例电池包的BMS发热元器件MOS管温升曲线对比图。
附图说明：10、下壳；10a、电池腔；20、电芯组件；201、电芯；2011、电极组件；2012、电芯壳体；2012a、连接部；2013、极耳；30、第一构件；301、第一通孔；301a、通道；302、第一侧板；3021、齿片；303、第二侧板；3031、第一固定部；3031a、第一固定孔；3032、第二固定部；3032a、第二固定孔；304、第三侧板；305、第四侧板；3051、第三固定部；3051a、第三固定孔；3052、第四固定部；3052a、第四固定孔；306、底板；3061、第二通孔；308、凹槽；40、第一垫片；50、填充件；501、空腔；501a、第三通孔；60、电路板；70、连接线；80、第二垫片；90、上壳。
具体实施方式
为了便于理解本申请，下面结合附图和具体实施例，对本申请进行更详细的说明。需要说明的是，当元件被表述“固定于”另一个元件，它可以直接在另一个元件上、或者其间可以存在一个或多个居中的元件。当一个元件被表述“连接”另一个元件，它可以是直接连接到另一个元件、或者其间可以存在一个或多个居中的元件。本说明书所使用的术语“垂直的”、“水平的”、“左”、“右”以及类似的表述只是为了说明的目的。
除非另有定义，本说明书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。本说明书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，不是用于限制本申请。本说明书所使用的术语“和/或”包括一个或多个相关的所列项目的任意的和所有的组合。
请参阅图1-图3，电池包01包括：下壳10、电芯组件20、第一构件30和上壳90。
所述电池包01还包括第一垫片40、填充件50、电路板60、连接线70、第二垫片80。所述电芯组件20设置于下壳10内，所述电芯组件20部分穿过填充件50，所述第一垫片40设置于所述填充件50上，并且所述第一垫片40与电芯组件20穿过填充件50的部分抵接，所述第一构件30与所述填充件50固定，并且第一构件30位于第一垫片40上，所述第二垫片80设置于所述第一构件30上，所述电路板60设置于所述第二垫片80上，连接线70分别与所述电芯组件20和电路板60电连接，所述上壳90盖设于所述第一构件30。第一垫片40和第二垫片80具有导热性能，用于将电路板60和电芯组件20的热量导向第一构件30，而第一构件30暴露于下壳10和上壳90之间，第一构件30可以直接与外界进行热交换，有利于提高第一构件30对电路板和电芯组件20的散热效果。
为了更好的对电池包01的结构进行说明，将结合X、Y、Z坐标轴对电池包01的结构进行叙述，其中，X、Y、Z坐标轴两两垂直。
对于上述第一构件30，如图2和图4所示，所述第一构件30包括第一侧板302、第二侧板303、第三侧板304、第四侧板305和底板306。第一侧板302、第二侧板303、第三侧板304和第四侧板305依次首尾连接并且环绕所述底板306。其中，第一侧板302与第三侧板304呈相对设置，第二侧板303和第四侧板305呈相对设置。第一侧板302、第二侧板303、第三侧板304、第四侧板305和底板306还共同围合形成凹槽308。凹槽308用于收容电路板60和第二垫片80。第一构件30还设置有贯穿底板306的第二通孔3061，所述第二通孔3061设置于底板306的两端，且第二通孔3061分别与第二侧板303、第四侧板305相邻设置，第二通孔3061与凹槽308连通，第二通孔3061用于供连接线70穿过。所述第一构件30的制作材料为金属，例如：铝合金、铜合金等等。
如图5所示，第二侧板303延伸有第一固定部3031和第二固定部 3032，第一固定部3031和第二固定部3032间隔设置，第一固定部3031的一端设置有第一固定孔3031a，第二固定部3032的一端设置有第二固定孔3032a，第一固定孔3031a和第二固定孔3032a用于与上壳90的一端固定。第四侧板305延伸有第三固定部3051和第四固定部3052，第三固定部3051和第四固定部3052间隔设置，第三固定部3051的一端设置有第三固定孔3051a，第四固定部3052的一端设置有第四固定孔3052a，第三固定孔3051a和第四固定孔3052a用于与上壳90的另一端固定。
第一构件30还设置有贯穿第一侧板302、底板306和第三侧板304的第一通孔301。所述第一侧板302朝所述第一通孔301内延伸有若干齿片3021，所述若干齿片3021沿第二方向间隔设置与所述第一通孔内，所述若干齿片3021将所述第一通孔301分隔形成若干通道301a，所述第二方向与所述第一方向垂直。第一通孔301沿第一方向或第二方向贯第一构件30。其中，所述第一通孔301暴露于所述下壳10和所述上壳90之间，换而言之，若干通道301a暴露于所述下壳10和所述上壳90之间，若干通道301a用于供外界气流流过，而流过若干通道301a的气流会带走第一构件30的热量，提高第一构件30与外界进行热交换的效率，从而提高散热效果。而所述齿片3021可增大第一构件30的散热面积，提高第一构件30与空气接触的接触面积，从而提高第一构件30的散热效率。
为了进一步提升的散热效果，在一些实施例中，电池包01还可以包括风机(图未示)，风机安装于第一构件30，并且风机的出风口与若干通道301a的一端的端口对齐，风机向若干通道301a鼓风，以加快气流在若干通道301a内的流动速度，从而提升散热效率。
可以理解的是：在另一些实施例中，也可以不设置齿片3021，仅仅设置第一通孔301，由第一通孔301供外界气流流过，如图6所示。此外，所述第一通孔301的数量不作限定，例如：一所述第一通孔301贯穿第一侧板302、底板306和第三侧板304，另一所述第一通孔301可贯穿第二侧板303、底板306和第四侧板305，且两个所述第一通孔301 相互连通，可加速第一构件30内部气流的流动，提高第一构件30的散热效果。同时，第一通孔301不限于设置仅贯穿所述第一侧板302、底板306和第三侧板304，即所述第一通孔301沿所述第一方向贯穿所述第一构件30，所述第一通孔301也可设置成仅贯穿所述第二侧板303、底板306和第四侧板305，即所述第一通孔301沿所述第二方向贯穿所述第一构件30。
对于上述电芯组件20，如图7和图8所示，所述电芯组件20包括多个沿第一方向依次堆叠设置的电芯201，所述电芯201用于与所述电路板60电连接。
所述电芯201包括电极组件2011、用于容纳所述电极组件2011的电芯壳体2012以及极耳2013。极耳2013的一端与所述电极组件2011连接，极耳2013的另一端从所述电芯壳体2012伸出，电芯壳体2012用于对电极组件2011进行密封，限制外部的水汽进入电芯壳体2012内。其中，所述极耳2013包括正极耳和负极耳，所述多个电芯201之间通过正极耳和负极耳连接。
对于上述填充件50，如图7、图9和图10所示，填充件50设置有空腔501以及多个第三通孔501a，所述多个第三通孔501a连通所述空腔501。填充件50设置于电芯组件20上，一电芯201的正极耳和负极耳分别从两个所述第三通孔501a穿过并且***所述空腔501内，并且多个电芯201的极耳在腔体内连接。
值得说明的是：在一些实施例中，所述填充件50由灌注于电芯201顶封处的导热胶固化后形成，且所述填充件与所述第一垫片40以及第一构件30粘接固定。此外，由于填充件50具有导热性能，所述填充件50可将用于将电芯201产生的热量传导给所述第一构件30，再通过第一构件30将热量散发到外界，从而达到降低电芯201温度的目的。当然，所述填充件50的制作材料不限于上述导热结构胶，也可以为其他制作材料，只要满足填充件50满足为电芯201导热以及具有绝缘效果即可，例如：导热凝胶。
对于上述第一垫片40和第二垫片80，如图7、图10和图11所示， 所述第一垫片40设置于所述第一构件30和电芯201的极耳2013之间，并且所述第一垫片40分别与所述第一构件30和电芯201的极耳2013抵接。第一垫片40具有导热性能，电芯201的极耳2013产生的热量通过第一垫片40传导给所述第一构件30，第一构件30散发外界，从而降低电芯极耳2013的温度。
在一些实施例中，所述第一垫片40为绝缘导热垫片，所述绝缘导热垫片既起到绝缘作用，以防止第一构件30与电芯201接触造成电芯201短路，绝缘导热垫片又可增加电芯极耳2013和第一构件之间的热传导性能，提高第一构件对电芯极耳2013的散热效果。
所述第二垫片设置于所述凹槽308内，所述第二垫片80沿第三方向设置于所述底板306和所述电路板60之间，所述第二垫片80分别与所述电路板60和所述底板306抵接。其中，所述第二垫片80具有导热性能，所述第二垫片80用于将所述电路板60产生的热量传导给所述第一构件30，由所述第一构件30散发到外界，从而达到降低电路板60温度的目的。
在一些实施例中，所述第二垫片80是由绝缘导热胶制成的，所述导热胶可将电路板60产生的热量传导给所述第一构件30，同时，还可起到绝缘的作用，防止所述电路板60与所述第一构件30之间直接接触造成电路板60短路。
需要说明的是：所述第一方向指的是沿X轴方向。可选的，所述第一方向为所述电芯201的厚度方向。所述第二方向指的是沿Y轴方向。所述第三方向指的是沿Z轴方向。
对于上述电路板60和连接线70，如图7所示，所述电路板60收容于凹槽308，以使电路板60设置于所述第一构件30背离所述下壳10的一表面。所述连接线70的一端与所述电芯201的极耳2013连接，所述连接线70的另一端穿过所述第二通孔3061后与所述电路板60连接，实现将所述电路板60和所述电芯201之间电连接。在一些实施例中，所述电路板60为Battery Management System(BMS)板，所述BMS板用于对电芯组件20的充放电进行控制。
对于上述下壳10和所述上壳90，如图7所示，所述下壳10设置有电池腔10a，所述电池腔10a用于***述电芯组件20，所述上壳90与所述第一构件30连接，且所述上壳90盖合所述凹槽308的槽口。其中，所述上壳90遮盖所述凹槽308的槽口，防止设于凹槽308内的电路板60暴露于空气中，减少电路板60与外界部件的接触，以免造成电路板60短路，所述上壳90对所述电路板60起到隔绝保护作用。所述下壳10可对收容于电池腔10a内的电芯组件20起到保护作用，限制外界部件对电芯组件20造成破坏。可以理解的是，所述上壳90与所述第一构件30的固定方式，可为螺接、焊接等等。
电池包01的装配过程包括：将电芯组件20放置于所述下壳10的电池腔10a内，且电芯组件20与电池腔10a的开口间隔预设空间，之后将第一垫片40与电芯201的极耳2013抵接，之后灌注导热胶，且导热胶灌满预设空间，导热胶与第一垫片40粘结固定，将第一构件30与导热胶粘接固定，再将第二垫片80设置于第一构件30内，并与第一构件30固定，将电路板60设置于第二垫片80上，并与第二垫片80固定，最后将上壳90与第一构件30固定，其中导热胶固化后形成填充件50。
为了更好地说明本申请技术方案所采用的第一构件所能达到的技术效果，本申请还提供了传统结构电池包(无第一构件)与本申请电池包的相关对比试验。具体试验过程如下：
采用热仿真分析手段模拟本申请电池包与传统结构电池包在相同工况下的温度分布。
试验材料：传统结构电池包、本申请电池包，其中两种电池包均设置有14个电芯。
试验条件：仿真工况为35℃，电池包充电倍率为5C，放电为用户实际电流工况，无静置连续循环充放电8个循环，外部环境风速为2m/s。
热仿真分析结果如下表1所示：
表1
Figure PCTCN2022090463-appb-000001
由图12中的传统结构电池包电芯本体温升曲线可知，传统结构电池包的电芯本体最高温度稳定在95.8℃，温度较高，且电芯最大温差为13.2℃。而由图13中的本申请的电池包电芯本体温升曲线可知，本申请电池包的电芯本体最高温度稳定在75.7℃，电芯最大温差为5.5℃，相对于传统结构电池包的电芯本体温升，本申请电池包的电芯本体最高温度降低了20.1℃，电芯的最大温差缩小7.7℃。由此说明，采用本申请散热结构的电池包可大大降低电芯温升，并改善电芯的最大温差。
由图14中的传统结构电池包电芯极耳温升曲线可知，传统结构电池包的电芯极耳最高温度稳定在101℃，电芯极耳的最大温差为9.4℃。而由图15中本申请的电池包电芯极耳温升曲线可知，本申请电池包的电芯极耳最高温度稳定在75.7℃，电芯极耳的最大温差为2.3℃，相对于传统结构电池包的电芯极耳温升，本申请电池包的电芯极耳最高温度降低了34.6℃，电芯极耳的最大温差缩小了7.1℃。由此说明，采用本申请散热结构的电池包可大大降低电芯极耳的温升，并改善电芯极耳的最大温差。
由图16中的传统结构电池包上的BMS发热元器件MOS管温升曲线可知，传统结构电池包的BMS发热元器件MOS管的最高温度为70℃。而由图16中的本申请的电池包上的BMS发热元器件MOS管温升曲线可知，本申请电池包的BMS发热元器件MOS管的最高温度为53.7℃，相对于传统结构电池包的BMS发热元器件MOS管温升，本申请电池包的BMS发热元器件MOS管的最高温度降低了16.3℃。由此说明，采用本申请散热结构的电池包可大大降低BMS发热元器件的温度。
综上可知，采用本申请散热结构的电池包较传统结构的电池包散热效果较好，不仅能够实现对电芯本体、电芯极耳以及BMS发热元器件进 行降温，且解决了电池包无静置多循环连续充放电工况时电芯温升过高的问题，使电池包能够实现无静置多循环连续充放电，较为便利。
在本申请实施例中，通过设置有上壳90、下壳10、电芯组件20、电路板60和第一构件30，下壳10设置有电池腔10a，电芯组件20设置于电池腔10a内，所述电路板60与所述电芯组件20连接，所述电路板60位于所述上壳90和下壳10之间，第一构件30设置有贯穿第一构件30的第一通孔301，所述第一通孔301位于所述电路板和所述电芯组件20之间，所述第一通孔301与外界空气路通，这样设置，在电池包使用过程中，电池包多次使用过后的电芯201温度以及电路板60温度较高时，可利用第一构件30对电芯201以及电路板60进行降温，缩短电芯201冷却至可充电温度的时间，第一构件30的第一通孔301与外界空气流通，第一通孔301可将第一构件30内部的热量排出第一构件30，同时，用户也可将外界抽风件设于第一构件30的第一通孔301处，加速第一构件30的散热，提高第一构件30的散热效果，较为便利。
本申请还提供了一种用电设备的实施例，用电设备包括以上的电池包，所述用电设备包括但不限于农用无人机，二轮电动车，储能设备，手持电动工具等，电池包的功能和结构可参阅上述实施例，此处不再一一赘述。
以上所述仅为本申请的实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (12)

  1. 一种电池包，包括：上壳、下壳、电芯组件和电路板，所述下壳设置有电池腔，所述电芯组件设置于所述电池腔内，所述电路板与所述电芯组件连接，所述电路板位于所述上壳和下壳之间；
    其特征在于，所述电池包还包括第一构件，所述第一构件设置有贯穿所述第一构件的第一通孔，所述第一通孔位于所述电路板和所述电芯组件之间，所述第一通孔与外界空气流通。
  2. 根据权利要求1所述的电池包，其特征在于，所述电芯组件包括多个沿第一方向依次堆叠设置的电芯，所述电芯包括电极组件、用于容纳所述电极组件的电芯壳体以及极耳，所述极耳的一端与所述电极组件连接，所述极耳的另一端从所述电芯壳体伸出，所述第一通孔位于所述电路板和所述极耳之间。
  3. 根据权利要求2所述的电池包，其特征在于，
    所述第一构件朝所述第一通孔内延伸有若干齿片，所述若干齿片沿第二方向间隔设置于所述第一通孔，所述若干齿片将所述第一通孔分隔形成若干通道，所述第二方向与所述第一方向垂直。
  4. 根据权利要求2所述的电池包，其特征在于，
    还包括第一垫片，所述第一垫片设置于所述第一构件和电芯的极耳之间，并且所述第一垫片分别与所述第一构件和电芯的极耳抵接。
  5. 根据权利要求4所述电池包，其特征在于，
    还包括填充件，所述填充件设置于所述电芯组件上，且所述填充件与所述第一构件连接。
  6. 根据权利要求2所述的电池包，其特征在于，
    所述第一构件还设置有第二通孔；
    所述电池包还包括连接线，所述电路板设置于所述第一构件背离所述下壳的一表面，所述连接线的一端与所述电芯的极耳连接，所述连接线的另一端穿过所述第二通孔后与所述电路板连接。
  7. 根据权利要求6所述的电池包，其特征在于，
    所述第一构件背离所述下壳的一表面设置有凹槽，所述第二通孔连通所述凹槽，所述电路板收容于所述凹槽内。
  8. 根据权利要求7所述的电池包，其特征在于，
    包括第二垫片，所述第二垫片设置于所述凹槽内，且所述第二垫片沿第三方向设置于所述第一构件和所述电路板之间，所述第二垫片分别与所述电路板和所述第一构件部分相抵接，所述第三方向同时垂直于所述第一方向和所述第二方向。
  9. 根据权利要求8所述的电池包，其特征在于，
    所述第二垫片的材料为绝缘导热胶。
  10. 根据权利要求7所述的电池包，其特征在于，
    所述上壳盖合所述凹槽的槽口，所述第一通孔暴露于所述下壳和上壳之间。
  11. 根据权利要求2所述的电池包，其特征在于，所述第一通孔沿所述第一方向或所述第二方向贯穿所述第一构件。
  12. 一种用电设备，其特征在于，包括如权利要求1-11任一项所述的电池包。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116031562A (zh) * 2023-03-28 2023-04-28 合肥召洋电子科技有限公司 一种储能电池的电池包安装结构

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006100019A (ja) * 2004-09-28 2006-04-13 Kyocera Corp 端子の固定構造
CN105210213A (zh) * 2013-05-16 2015-12-30 安普泰科电子韩国有限公司 电池组电子装置室和包括其的电池封装件
CN205248346U (zh) * 2015-12-30 2016-05-18 安徽贵博新能科技有限公司 一种软包电池标准模块盒结构
CN206432306U (zh) * 2017-02-15 2017-08-22 宁德时代新能源科技股份有限公司 电池模组及电池包
CN113381094A (zh) * 2021-07-14 2021-09-10 珠海冠宇动力电池有限公司 电池包
CN113394481A (zh) * 2021-07-14 2021-09-14 珠海冠宇动力电池有限公司 一种电池散热器及电池包
CN215184418U (zh) * 2021-07-14 2021-12-14 珠海冠宇动力电池有限公司 转接板及电池模组

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9660237B2 (en) * 2014-07-31 2017-05-23 Johnson Controls Technology Company Manifold vent channel for a battery module
CN207097917U (zh) * 2017-08-23 2018-03-13 宁波动一电器有限公司 一种电池包
CN207441766U (zh) * 2017-11-24 2018-06-01 杭州天丰电源股份有限公司 一种电池电芯组端盖
CN208422965U (zh) * 2018-05-04 2019-01-22 杭州云威新能源科技有限公司 一种电池包
CN111403643A (zh) * 2020-03-10 2020-07-10 广东顺德工业设计研究院(广东顺德创新设计研究院) 一种电池箱
CN211858757U (zh) * 2020-05-25 2020-11-03 东莞新能安科技有限公司 电池
CN212062540U (zh) * 2020-06-18 2020-12-01 东莞新能安科技有限公司 电池
CN212625856U (zh) * 2020-06-24 2021-02-26 东莞新能安科技有限公司 电池
CN212625853U (zh) * 2020-10-10 2021-02-26 湖北亿纬动力有限公司 一种电池包

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006100019A (ja) * 2004-09-28 2006-04-13 Kyocera Corp 端子の固定構造
CN105210213A (zh) * 2013-05-16 2015-12-30 安普泰科电子韩国有限公司 电池组电子装置室和包括其的电池封装件
CN205248346U (zh) * 2015-12-30 2016-05-18 安徽贵博新能科技有限公司 一种软包电池标准模块盒结构
CN206432306U (zh) * 2017-02-15 2017-08-22 宁德时代新能源科技股份有限公司 电池模组及电池包
CN113381094A (zh) * 2021-07-14 2021-09-10 珠海冠宇动力电池有限公司 电池包
CN113394481A (zh) * 2021-07-14 2021-09-14 珠海冠宇动力电池有限公司 一种电池散热器及电池包
CN215184418U (zh) * 2021-07-14 2021-12-14 珠海冠宇动力电池有限公司 转接板及电池模组

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116031562A (zh) * 2023-03-28 2023-04-28 合肥召洋电子科技有限公司 一种储能电池的电池包安装结构
CN116031562B (zh) * 2023-03-28 2023-07-04 合肥召洋电子科技有限公司 一种储能电池的电池包安装结构

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