WO2023082051A1 - 电池组件及无人机 - Google Patents

电池组件及无人机 Download PDF

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Publication number
WO2023082051A1
WO2023082051A1 PCT/CN2021/129574 CN2021129574W WO2023082051A1 WO 2023082051 A1 WO2023082051 A1 WO 2023082051A1 CN 2021129574 W CN2021129574 W CN 2021129574W WO 2023082051 A1 WO2023082051 A1 WO 2023082051A1
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WO
WIPO (PCT)
Prior art keywords
battery assembly
heat sink
assembly according
heat
battery
Prior art date
Application number
PCT/CN2021/129574
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English (en)
French (fr)
Inventor
张瑞强
李日照
Original Assignee
深圳市大疆创新科技有限公司
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Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2021/129574 priority Critical patent/WO2023082051A1/zh
Publication of WO2023082051A1 publication Critical patent/WO2023082051A1/zh

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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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • 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
    • H01M10/654—Means for temperature control structurally associated with the cells located inside the innermost case of the cells, e.g. mandrels, electrodes or electrolytes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of batteries, and more specifically relates to a battery assembly and an unmanned aerial vehicle.
  • Agricultural drones can spray liquids during flight, such as agricultural drones spraying pesticides for insect removal operations.
  • the humidity in the working environment is high, and the waterproof performance of the battery of the agricultural drone is high.
  • a battery assembly comprising:
  • the housing which defines an accommodating space inside;
  • a cell module including a plurality of cells, and the cell module is accommodated in the accommodation space of the housing;
  • a heat sink installed in the accommodation space of the housing, and thermally connected to the tabs of the battery module to dissipate heat from the tabs,
  • the heat sink is provided with a plurality of heat dissipation channels penetrating the two opposite sides of the heat sink, and each heat dissipation channel has two opposite openings;
  • a through hole is formed at a position of the housing corresponding to each opening of the heat dissipation channel.
  • an unmanned aerial vehicle comprising: a frame; and the battery assembly described in any one of the first aspect of the present application, the battery assembly being installed on the frame;
  • the through holes on both sides of the battery assembly are exposed to the outside of the battery assembly, and the airflow outside the frame can pass through the through holes to dissipate heat from the radiator.
  • FIG. 1 is a schematic structural view of a battery assembly according to an embodiment of the present application
  • Fig. 2 shows an exploded schematic diagram of the battery assembly shown in Fig. 1;
  • Fig. 3 is a schematic structural diagram of a cell module according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a radiator according to an embodiment of the present application.
  • Fig. 5 is a bottom view of the radiator shown in Fig. 4;
  • FIG. 6 shows a structural block diagram of a battery assembly according to an embodiment of the present application
  • Figure 7 shows a schematic cross-sectional view of the assembled housing and radiator
  • Fig. 8 is a partially enlarged view of area A in Fig. 7;
  • Fig. 9 is a schematic cross-sectional view after installing the cell module and the circuit board in the housing shown in Fig. 7;
  • Fig. 10 shows a schematic cross-sectional view of a battery assembly according to an embodiment of the present application, in which a circuit board and an upper cover are omitted;
  • Fig. 11 is a partial enlarged view of area B in Fig. 10;
  • Fig. 12 shows a schematic structural diagram of an unmanned aerial vehicle according to an embodiment of the present application
  • Fig. 13 is a partial enlarged view of area C in Fig. 12;
  • Fig. 14 shows a structural schematic diagram of another angle of the UAV shown in Fig. 12;
  • Figure 15 is a partial enlarged view of area D in Figure 14.
  • Fig. 16 shows a schematic diagram of a partial structure of the UAV shown in Fig. 12, in which the liquid supply tank is omitted.
  • Radiator 1501, first side surface; 1502, second side surface; 1503, third side surface; 1504, fourth side surface; 1505, upper surface; 1506, lower surface; 151, cooling channel; 1511, Opening; 152, power channel; 153, communication channel;
  • FIG. 1 is a schematic structural view of a battery assembly 100 according to an embodiment of the present application
  • FIG. 2 shows an exploded schematic view of the battery assembly 100 shown in FIG. 1
  • the battery assembly 100 of the embodiment of the present application includes: a housing 10 and a cell module 20 .
  • the housing 10 includes an upper cover 14 , a lower cover 13 , and a circumferential side wall 103 connected between the upper cover 14 and the lower cover 13 .
  • the upper cover 14 , the lower cover 13 and the peripheral sidewall 103 jointly define an accommodating space 101 .
  • the peripheral side wall 103 may include two panels 11 oppositely arranged, and two side plates 12 respectively connected between the two panels 11. Part of the surface of the upper cover plate 14 may be provided with a heat dissipation structure (such as heat dissipation fins 142 shown in FIG. 13 ).
  • the housing 10 is formed with a handle portion 141 protruding from the peripheral sidewall 103 (for example protruding from a panel 11 ).
  • the grip portion 141 is used to assist the user in operations such as inserting and removing the battery.
  • the holding portion 141 is a holding handle provided on the housing 10 .
  • the cell module 20 is accommodated in the accommodation space 101 of the casing 10 .
  • the cell module 20 may include one cell 21 or a plurality of cells 21 .
  • the cell module 20 may include 1 cell 21 , 2 cells 21 , 3 cells 21 , 4 cells 21 or more cells 21 and so on.
  • Each cell 21 has two tabs 22: a positive tab and a negative tab.
  • the cell module 20 also includes tab plates 23 disposed above the cells 21 , and the cells 21 are connected in parallel and/or in series through the tab plates 23 .
  • the battery assembly 100 of the embodiment of the present application may further include a radiator 15 disposed in the accommodating space 101 of the casing 10 .
  • the radiator 15 is thermally connected to the tab 22 of the cell module 20 to dissipate heat from the tab 22 .
  • the heat sink 15 can be in thermal contact with all tabs 22 of the cell module 20 , the heat of the tabs 22 of the cell module 20 is transferred to the radiator 15 , and then transferred to the outside through the radiator 15 .
  • the radiator 15 can be disposed in the circumferential sidewall 103 of the casing 10 .
  • the radiator 15 is fixedly connected to the circumferential side wall 103 of the casing 10 .
  • the heat sink 15 can be detachably fixedly connected to the peripheral side wall 103 through fasteners.
  • the radiator 15 is detachably fixedly connected to the two panels 11 and the two side panels 12 respectively by screws.
  • FIG. 4 is a schematic structural view of the radiator 15 according to an embodiment of the present application
  • FIG. 5 is a bottom view of the radiator 15 shown in FIG. 4
  • the heat sink 15 is provided with a plurality of heat dissipation passages 151 passing through two opposite sides of the heat sink 15 , and each heat dissipation passage 151 has two opposite openings 1511 .
  • a through hole 102 is formed at a position of the housing 10 corresponding to each opening 1511 of the heat dissipation channel 151 .
  • the through hole 102 is formed at a position corresponding to the opening 1511 of the heat dissipation channel 151 on the two panels 11 .
  • the two opposite openings 1511 of the heat dissipation channel 151 are respectively located on two opposite sides of the radiator 15, and the through holes 102 are formed on the housing 10 at positions corresponding to the openings 1511, so that the outside air can flow from the radiator 15.
  • the side surface enters into the heat dissipation channel 151 to take away the heat conducted from the tab 22 of the cell module 20 to the heat sink 15 and improve the heat dissipation efficiency of the heat sink 15 .
  • the heat sink 15 is provided for the tab 22 , it is beneficial to dissipate heat from the tab 22 .
  • the present invention by disposing the radiator 15 with the heat dissipation channel 151 inside the housing 10, compared with disposing the radiator 15 outside the housing 10 (for example, the upper end of the housing 10 is in contact with the housing 10), the present invention reduces the joints between the radiator 15 and the casing 10 exposed to the external environment, thereby improving the sealing effect of the battery assembly 100 .
  • the radiator 15 includes an upper surface 1505, a lower surface 1506, and a first side surface 1501, a second side surface 1502, and a third side surface sequentially connected between the upper surface 1505 and the lower surface 1506 in the circumferential direction. 1503 and the fourth side surface 1504 .
  • the first side surface 1501 is opposite to the third side surface 1503
  • the second side surface 1502 is opposite to the fourth side surface 1504 .
  • the upper surface 1505 , the lower surface 1506 , the first side surface 1501 , the second side surface 1502 , the third side surface 1503 and the fourth side surface 1504 together form a substantially rectangular parallelepiped.
  • the width of the first side surface 1501 and the third side surface 1503 is greater than the width of the second side surface 1502 and the fourth side surface 1504, and two openings 1511 opposite to the heat dissipation channel 151 are respectively formed on the first side surface 1501 and the third side surface 1503.
  • the number of cooling channels 151 can be, for example, 2, 3, 4 or more than 5.
  • the lower surface 1506 of the heat sink 15 is smooth, so as to improve the contact area between the tab 22 and the heat sink 15 and improve the heat conduction efficiency.
  • the first side surface 1501, the second side surface 1502, the third side surface 1503 and the fourth side surface 1504 can all be smooth, so that part of the heat from the radiator 15 can be transferred to the housing 10 as much as possible, and then pass through the housing. 10 to the outside.
  • the upper and lower ends of the first side surface 1501 and the third side surface 1503 of the radiator 15 respectively protrude from the upper surface 1505 and the lower surface 1506 of the radiator 15, thereby increasing the first side surface 1501 and the
  • the contact area of the third side surface 1503 with the panel 11 of the casing 10 further improves the sealing effect of the joint between the radiator 15 and the casing 10 and improves the heat conduction efficiency between the radiator 15 and the casing 10 .
  • the heat sink 15 can be thermally connected to the tab 22 through a heat conducting member 40 .
  • the heat conduction element 40 may be at least one of heat conduction grease, heat conduction glue and heat conduction pad.
  • Fig. 6 shows a structural block diagram of a battery assembly according to an embodiment of the present application.
  • the battery assembly 100 may further include a battery management system 30 .
  • the battery management system 30 includes a circuit board 301 for controlling and/or monitoring the state of the battery cells 21 .
  • the state of the battery cell 21 includes at least one of the following: discharge, charge, temperature, current, voltage, and electricity. Of course, the state of the battery cell 21 is not limited thereto.
  • the circuit board 301 can control the discharge and charge of the battery cell 21 and monitor the temperature, current, voltage and power of the battery cell 21 to ensure that the battery cell 21 is in a normal working state.
  • the circuit board 301 is disposed in the accommodating space 101 of the casing 10 .
  • the heat sink 15 divides the accommodating space 101 of the housing 10 inside the housing 10 to form a lower cell cavity 1011 and an upper electrical cavity 1012 .
  • the cell module 20 can be accommodated in the cell cavity 1011
  • the circuit board 301 can be accommodated in the electrical appliance cavity 1012 .
  • the circuit board 301 can be placed in thermal contact with the upper surface 1505 of the heat sink 15 , so that the heat sink 15 can be used to dissipate heat for the tab 22 and the circuit board 301 at the same time.
  • the upper surface 1505 of the heat sink 15 can be smooth, so as to improve the heat conduction effect between the heat sink 15 and the circuit board 301 .
  • the power management system 30 also includes at least one line electrically connected to the battery module 20, and the radiator 15 also includes: at least one threading channel that runs through the upper surface 1505 and the lower surface 1506 of the radiator 15, and the threading channel communicates with the cell cavity 1011 and an electrical cavity 1012, for passing the at least one circuit.
  • the threading channel and the heat dissipation channel 151 are isolated from each other, so as to solve the problem of threading while ensuring the sealing inside the housing 10 .
  • the power management system 30 includes two power lines electrically connected to the cell module 20, one of which is a positive power line 31, and the other is a negative power line 32.
  • the circuit board 301 is connected to the cell module 20 through the positive power line 31 and the negative power line 32 .
  • the power management system 30 may also include a communication line electrically connected to the battery module 20, and the circuit board 301 obtains the working status of each battery 21 in the battery module 20 through the communication line, such as current, voltage and temperature etc.
  • the threading channel formed inside the heat sink 15 includes two power supply channels 152 for passing the positive power line 31 and the negative power line 32 and the In the communication channel 153 for the communication line to pass through.
  • the tab plate 23 is provided with a communication connector 33 for connecting with a communication line of the circuit board 301 .
  • the communication joint 33 faces the communication channel 153 and extends upward into the communication channel 153 .
  • the two power channels 152 are respectively located on two sides of the heat sink 15 perpendicular to the extending direction of the heat dissipation channel 151 , and the communication channel 153 is located in the middle of the heat sink 15 .
  • the two power channels 152 are disposed adjacent to the second side surface 1502 and the fourth side surface 1504 respectively, and the communication channel 153 is located in the middle between the second side surface 1502 and the fourth side surface 1504 .
  • the power channel 152 can be an open groove penetrating through the third side surface 1503 .
  • the battery assembly 100 further includes an insulating plate (not shown in the figure), disposed between the tab plate 23 and the radiator 15 .
  • the insulation plate has the effect of insulation and isolation, and is used to improve the safety of the battery assembly 100 .
  • the insulation board can be made of materials with high thermal conductivity and good insulation performance, and the thickness should be as small as possible.
  • the space between the insulating plate and the lug plate 23 is filled with a heat conducting medium, and/or the space between the insulating plate and the radiator 15 is filled with a heat conducting medium, and the heat conducting medium can directly enter the insulating plate and the tab plate 23 In the gap between them, the heat conduction medium can also directly enter the gap between the insulating plate and the heat sink 15, and the heat conduction medium can form a good heat conduction channel between the lug plate 23 and the heat sink 15, avoiding the heat conduction due to the installation of the insulating plate Hinder and affect the heat conduction effect.
  • the heat conduction medium may be heat conduction silicone grease, heat conduction paste, etc.
  • a waterproof layer can be provided inside the casing 10 to improve the sealing performance of the battery assembly 100 .
  • the battery assembly 100 provided in the embodiment of the present application can be used in a mobile platform, which can be an unmanned aerial vehicle (ie, a drone), an unmanned ship, an unmanned vehicle, and the like.
  • the battery assembly 100 provided in the embodiment of the present application can meet the usage requirements of the mobile platform in high-power working conditions such as continuous movement, and has better sealing performance.
  • the battery assembly 100 provided in the embodiment of the present application can also be applied to other devices that require batteries for power supply.
  • the embodiment of the present application also provides a drone.
  • Fig. 12 shows a schematic structural diagram of a drone according to an embodiment of the present application
  • Fig. 13 is a partially enlarged view of area C in Fig. 12
  • Fig. 14 shows a schematic structural diagram of another angle of the drone shown in Fig. 12
  • FIG. 15 is a partially enlarged view of area D in FIG. 14; in the figure, the x-axis indicates the direction of the roll axis, and the direction of the arrow on the x-axis points to the nose; the y-axis indicates the direction of the pitch axis.
  • the UAV 200 includes: a frame 210 , at least one rotor 230 mounted on the frame 210 and a battery assembly 100 according to any embodiment of the present application, and the battery assembly 100 is mounted on the frame 210 .
  • the through holes 102 on both sides of the battery assembly 100 are exposed to the outside of the battery assembly 100 . And the through holes 102 on both sides of the battery assembly 100 are also exposed outside the frame 210 . In other words, the through holes 102 on both sides of the battery assembly 100 communicate with the external environment of the frame 201, so that the airflow in the external environment enters the heat dissipation channel 151 through the through holes 102 on one side, and returns to the outside through the through holes 102 on the other side. environment, to dissipate heat from the radiator 15.
  • the heat dissipation channel 151 may extend in the same direction as the roll axis of the drone 200 , in other words, the heat dissipation channel 151 extends along the roll axis of the drone 200 . Therefore, during the flight of the drone 200 , the airflow of the drone 200 is used to dissipate heat from the radiator 15 . In this way, the circulation of air in the heat dissipation channel 151 can be accelerated, and the heat transferred from the battery module 20 to the heat sink 15 can be taken away, thereby improving the heat dissipation effect.
  • gaps are formed between the battery assembly 100 and the frame 210 on both sides along the pitch axis direction of the UAV 200 , and the through holes 102 on both sides are respectively exposed to the two sides. in the crevice.
  • a first gap 211 is formed between the battery assembly 100 approaching the nose and the frame 210, and a gap 211 is formed between the battery assembly 100 approaching the tail and the frame 210.
  • the through holes 102 on both sides of the battery assembly 100 are respectively exposed in the first gap 211 and the second gap 212 .
  • the drone 200 may be an agricultural drone.
  • the frame 210 of the agricultural drone is also equipped with a liquid supply tank 220 , and the liquid supply tank 220 is disposed on the frame 210 adjacent to the battery assembly 100 .
  • the liquid supply tank 220 is closer to the nose of the machine. It is easy to understand that a first gap 211 is formed between the battery assembly 100 and the liquid supply tank 220 . In other words, the water supply tank 220 cannot be placed close to the battery assembly 100 , but a certain gap needs to be reserved to allow the air in the external environment to flow into or out of the through hole 102 .
  • gaps are formed between the battery assembly 100 and the frame 210 on both sides of the pitch axis direction of the drone 200;
  • the two sides of the battery assembly 100 along the pitch axis direction of the UAV 200 and the frame 210 and the equipment installed on the frame 210 are equally spaced. A gap is formed.
  • FIG. 16 shows a schematic diagram of a partial structure of a drone 200 according to an embodiment of the present application, wherein the liquid supply tank 220 is omitted.
  • the battery assembly 100 is clamped on the frame 210 through the mounting member 240 .
  • the portion of the battery assembly 100 above the through hole 102 is disposed higher than the frame 210 to allow the air in the external environment to flow into or out of the through hole 102 .
  • the UAV 200 of the embodiment of the present application forms the above-mentioned gaps on both sides of the battery assembly 100, so that during the flight of the UAV 200, the airflow of the UAV 200 can be used to dissipate heat from the radiator 15, which improves the The heat dissipation effect of the battery assembly 100 .
  • the battery assembly 100 in the embodiment of the present application has a better sealing effect, it can meet the waterproof performance requirements of the battery of the agricultural drone.

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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)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电池组件(100)及无人机(200)。电池组件(100)包括：壳体(10)，其内部限定有容置空间(101)；电芯模组(20)，包括多个电芯(21)，电芯模组(20)收容于壳体(10)的容置空间(101)内；以及散热器(15)，设置于壳体(10)的容置空间(101)内，与电芯模组(20)的极耳(22)导热连接以对极耳(22)散热，其中，散热器(15)开设有多个贯通散热器(15)相对两个侧面(1501，1503)的散热通道(151)，每个散热通道(151)具有相对的两个开口(1511)；壳体(10)与散热通道(151)的每个开口(1511)对应的位置形成通孔(102)。本发明实施例的技术方案通过将散热器(15)设置于壳体(10)内部，提高了电池组件(100)的密封性能。

Description

电池组件及无人机 技术领域
本申请涉及电池技术领域，更具体地涉及一种电池组件及无人机。
背景技术
农业无人机在飞行过程中可进行液体的喷洒作业，如农业无人机喷洒农药进行除虫作业等。在农业无人机进行喷洒作业时，其所处工作环境的湿度较大，对农业无人机的电池的防水性能要求较高。
此外，农业无人机由于需要搭载农药等，通常载重较大，因此动力输出很大，从而电池的输出功率较大。电池在大功率输出的情况下产生的热量较多，因此，对于电池的散热也提出了更高的要求。
发明内容
根据本申请的第一方面，提供了一种电池组件，包括：
壳体，其内部限定有容置空间；
电芯模组，包括多个电芯，所述电芯模组收容于所述壳体的容置空间内；以及
散热器，安装于所述壳体的容置空间内，与所述电芯模组的极耳导热连接以对所述极耳散热，
其中，所述散热器开设有多个贯通所述散热器相对两个侧面的散热通道，每个所述散热通道具有相对的两个开口；
所述壳体与所述散热通道的每个所述开口对应的位置形成通孔。
根据本申请的第二方面，提供了一种无人机，包括：机架；和本申请第一方面任一项所述的电池组件，所述电池组件安装于所述机架上；
其中，所述电池组件两侧的通孔暴露于所述电池组件的外部，并 且所述机架的外部的气流能够通过所述通孔，以对所述散热器进行散热。
附图说明
通过下文中参照附图对本申请所作的描述，本申请的其它目的和优点将显而易见，并可帮助对本申请有全面的理解。其中：
图1是根据本申请实施例的电池组件的结构示意图；
图2示出了图1所示电池组件的分解示意图；
图3是根据本申请实施例的电芯模组的结构示意图；
图4是根据本申请实施例的散热器的结构示意图；
图5是图4所示散热器的仰视图；
图6示出了根据本申请实施例的电池组件的结构框图；
图7示出了壳体和散热器组装后的剖面示意图；
图8是图7中A区域的局部放大图；
图9是在图7所示的壳体内安装电芯模组和电路板后的剖面示意图；
图10示出了根据本申请实施例的电池组件的剖面示意图，图中省略了电路板和上盖板；
图11是图10中B区域的局部放大图；
图12示出了根据本申请实施例的无人机的结构示意图；
图13是图12中C区域的局部放大图；
图14示出了图12所示的无人机另一角度的结构示意图；
图15是图14中D区域的局部放大图；以及
图16示出了图12所示无人机的局部结构示意图，图中省略了供液箱。
应该注意的是，附图并未按比例绘制，并且出于说明目的，在整个附图中类似结构或功能的元素通常用类似的附图标记来表示。还应该注意的是，附图只是为了便于描述优选实施例，而不是本申请本身。附图没有示出所描述的实施例的每个方面，并且不限制本申请的范围。
附图标记说明：
100、电池组件；10、壳体；101、容置空间；1011、电芯腔；1012、电器腔；102、通孔；103、周向侧壁；11、面板；12、侧板；121、安装部；13、下盖板；14、上盖板；141、握持部；142、散热翅片；
15、散热器；1501、第一侧表面；1502、第二侧表面；1503、第三侧表面；1504、第四侧表面；1505、上表面；1506、下表面；151、散热通道；1511、开口；152、电源通道；153、通信通道；
20、电芯模组；21、电芯；22、极耳；23、极耳板；
30、电源管理系统；301、电路板；31、电源正极线；32、电源负极线；33、通信接头；
40、导热件；
200、无人机；210、机架；211、第一缝隙；212、第二缝隙；220、供液箱；230、旋翼；240、安装件。
具体实施方式
下面详细描述本申请的实施方式，实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
下文的公开提供了多个不同的实施方式或例子用来实现本申请。为了简化本申请的公开，下文中对特定例子的部件和方法进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。
图1是根据本申请实施例的电池组件100的结构示意图；图2示出了图1所示电池组件100的分解示意图。如图1和图2所示，本申请实施例的电池组件100包括：壳体10和电芯模组20。
壳体10内部限定有容置空间101。具体地，壳体10包括上盖板14、下盖板13以及连接在上盖板14和下盖板13之间的周向侧壁103。上盖板14、下盖板13以及周向侧壁103共同限定形成容置空间101。
周向侧壁103可包括相对设置的两块面板11，以及分别连接在 两个面板11之间的两块侧板12。上盖板14的部分表面可设置有散热结构(例如图13中示出的散热翅片142)。
在一些实施例中，壳体10上形成有凸出于周向侧壁103(例如凸出一块面板11)的握持部141。该握持部141用以辅助使用者插拔电池等操作。在一些实施例中，该握持部141为设置在壳体10上的握持把手。
电芯模组20收容于壳体10的容置空间101内。
参见图3，电芯模组20可以包括一块电芯21或多块电芯21。例如，电芯模组20可以包括1块电芯21，2块电芯21，3块电芯21，4块电芯21或更多块电芯21等。每块电芯21具有两个极耳22：正极极耳和负极极耳。
电芯模组20还包括设置于电芯21上方的极耳板23，这些电芯21之间通过极耳板23实现并联和/或串联连接。
参见图2，本申请实施例的电池组件100还可包括散热器15，设置于壳体10的容置空间101内。散热器15与电芯模组20的极耳22导热连接，以对极耳22进行散热。
容易理解，散热器15可以与电芯模组20的全部极耳22热接触，电芯模组20的极耳22的热量传递至散热器15，经由散热器15传递至外部。
散热器15可设置于壳体10的周向侧壁103内。例如，散热器15与壳体10的周向侧壁103固定连接。在一些实施例中，散热器15可以通过紧固件与周向侧壁103可拆卸地固定连接。例如，散热器15通过螺钉分别与两块面板11和两块侧板12可拆卸地固定连接。
图4是根据本申请实施例的散热器15的结构示意图；图5是图4所示散热器15的仰视图。参见图4和图5，散热器15开设有多个贯通散热器15相对两个侧面的散热通道151，每个散热通道151具有相对的两个开口1511。
继续参见图1和图2，壳体10与散热通道151的每个开口1511对应的位置形成通孔102。具体地，通孔102形成在两个面板11与散热通道151的开口1511对应的位置。
容易理解，散热通道151相对的两个开口1511分别位于散热器15相对的两个侧面，而通孔102形成在壳体10上与开口1511相对应的位置，从而外界空气能够从散热器15的侧面进入到散热通道151内，带走电芯模组20的极耳22传导到散热器15的热量，提高散热器15的散热效率。
在本申请实施例中，由于为极耳22设置散热器15，从而有利于对极耳22进行散热。
容易理解，当电池组件100周围的空气流通好时，电池组件100的散热效果相应会更好；但是当电池组件100周围空气流通好时可能会降低电池组件100的密封效果。本申请实施例通过将具有散热通道151的散热器15设置在壳体10内部，相比于将散热器15设置于壳体10外部(例如在壳体10上端与壳体10相接)，本申请实施例减少了散热器15与壳体10裸露于外部环境中的接缝，从而有利于提高电池组件100的密封效果。
参见图4和图5，散热器15包括上表面1505、下表面1506以及在周向顺次连接在上表面1505和下表面1506之间的第一侧表面1501、第二侧表面1502、第三侧表面1503以及第四侧表面1504。其中，第一侧表面1501和第三侧表面1503相对设置，第二侧表面1502和第四侧表面1504相对设置。上表面1505、下表面1506、第一侧表面1501、第二侧表面1502、第三侧表面1503以及第四侧表面1504共同围成大致呈长方体的形状。
第一侧表面1501和第三侧表面1503的宽度大于第二侧表面1502和第四侧表面1504的宽度，散热通道151相对的两个开口1511分别形成在第一侧表面1501和第三侧表面1503。
散热通道151的数量例如可以为2个，3个，4个或5个以上。
在一些实施例中，散热器15的下表面1506光滑设置，从而有利于提高极耳22与散热器15之间的接触面积，提高导热效率。
第一侧表面1501、第二侧表面1502、第三侧表面1503以及第四侧表面1504可均光滑设置，从而，能够尽量地将散热器15的部分热量传至壳体10，再通过壳体10传至外部。
参见图4和图5，散热器15的第一侧表面1501和第三侧表面1503的上下两端分别凸出于散热器15的上表面1505和下表面1506，从而增加第一侧表面1501和第三侧表面1503与壳体10的面板11接触的面积，进而提高散热器15与壳体10的接缝处的密封效果，并提高散热器15与壳体10之间的导热效率。
参见图2，散热器15可以通过导热件40与极耳22导热连接。导热件40可以为导热脂、导热胶以及导热垫中的至少一种。
图6示出了根据本申请实施例的电池组件的结构框图。参见图6，电池组件100还可包括电池管理系统30。电池管理系统30包括电路板301，用于对电芯21的状态进行控制或/及监测。其中电芯21的状态包括如下至少一种：放电，充电，温度，电流，电压，电量，当然，电芯21的状态并不限于此。电路板301可以对电芯21的放电和充电进行控制，并可对电芯21的温度、电流、电压和电量进行监控，以确保电芯21处于正常工作状态。
电路板301设置于壳体10的容置空间101内。
参见图7和图8，在一些实施例中，散热器15在壳体10内部将壳体10的容置空间101分隔形成位于下方的电芯腔1011和位于上方的电器腔1012。
参见图9，电芯模组20可以收容于电芯腔1011内，电路板301可以收容于电器腔1012内。在这样的实施例中，可将电路板301与散热器15的上表面1505设置为热接触，从而同时利用散热器15为极耳22和电路板301进行散热。
进一步地，散热器15的上表面1505可光滑设置，从而提高散热器15与电路板301之间的导热效果。
电源管理系统30还包括与电芯模组20电性连接的至少一条线路，散热器15还包括：贯穿散热器15的上表面1505和下表面1506的至少一个穿线通道，穿线通道连通电芯腔1011和电器腔1012，用于供所述至少一条线路通过。穿线通道与散热通道151相互隔绝，从而在保证壳体10内部密封的同时解决穿线的问题。
在一些实施例中，电源管理系统30包括与电芯模组20电性连接 的两条电源线，其中一条为电源正极线31，另一条为电源负极线32。电路板301通过电源正极线31和电源负极线32与电芯模组20连接。
此外，电源管理系统30还可包括与电芯模组20电性连接的一条通信线，电路板301通过通信线获取电芯模组20中每个电芯21的工作状态，如电流、电压以及温度等。
在这样的实施例中，参见图4和图5以及图10和图11，散热器15内部形成的穿线通道包括用于供电源正极线31和电源负极线32通过的两个电源通道152和用于供通信线通过的通信通道153。
极耳板23上设置有通信接头33，用于与电路板301的通信线对接。通信接头33正对通信通道153，并向上伸入通信通道153中。
参见图4和图5，两个电源通道152分别位于散热器15的垂直于散热通道151延伸方向的两侧，通信通道153位于散热器15的中部。具体地，两个电源通道152分别邻近第二侧表面1502和第四侧表面1504设置，通信通道153则位于第二侧表面1502和第四侧表面1504之间的中间位置。
电源通道152可以为贯穿第三侧表面1503的开口槽。
在一些实施例中，电池组件100还包括绝缘板(图中未示出)，设置在极耳板23与散热器15之间。绝缘板起到绝缘隔离的效果，用于提高电池组件100的使用安全性。绝缘板可选用导热系数大、绝缘性能好的材料，同时厚度要尽量小。
容易理解的是，绝缘板与和极耳板23之间填充有导热介质，和/或绝缘板与散热器15之间填充有导热介质，导热介质可以直接进入到绝缘板与和极耳板23之间的缝隙中，导热介质也可以直接进入到绝缘板与散热器15之间的缝隙中，导热介质可以在极耳板23和散热器15之间形成良好的导热通道，避免由于设置绝缘板阻碍和影响到热传导效果。导热介质可以为导热硅脂、导热膏等。
为了提高电池组件100的安全性，可以在壳体10内部设置防水层，以提高电池组件100的密封性。
本申请实施例提供的电池组件100可用于可移动平台，可移动平台可以是无人飞行器(即无人机)、无人船、无人车等。本申请实施 例提供的电池组件100能够满足可移动平台在持续移动等大功率工况的使用需求，同时具有较好的密封性能。
容易理解，本申请实施例提供的电池组件100还可应用在其他需要电池进行供电的设备上。
本申请实施例还提供了一种无人机。
图12示出了根据本申请实施例的无人机的结构示意图；图13是图12中C区域的局部放大图；图14示出了图12所示的无人机另一角度的结构示意图；图15是图14中D区域的局部放大图；图中，x轴表示横滚轴方向，x轴箭头方向指向机头；y轴表示俯仰轴方向。
参见图12至图15，无人机200包括：机架210、安装于机架210上的至少一个旋翼230以及本申请任一实施例的电池组件100，电池组件100安装于机架210上。
电池组件100两侧的通孔102暴露在电池组件100的外部。并且电池组件100两侧的通孔102也暴露在机架210的外部。换言之，电池组件100两侧的通孔102与机架201的外部环境连通，以允许外部环境中的气流通过一侧的通孔102进入散热通道151内，并通过另一侧通孔102返回外部环境中，以对散热器15进行散热。
在一些实施例中，散热通道151的延伸方向可以与无人机200的横滚轴方向相同，换言之，散热通道151沿着无人机200的横滚轴延伸。从而在无人机200飞行过程中，利用无人机200飞行时的气流对散热器15进行散热。如此，能够加速空气在散热通道151内流通，带走电芯模组20传递到散热器15上的热量，提高散热效果。
在一些实施例中，参见图13和图15，电池组件100沿无人机200的俯仰轴方向的两侧与机架210之间均形成有缝隙，两侧通孔102分别暴露于两侧的缝隙中。
具体地，电池组件100安装于机架210时，电池组件100靠近机头的方向与机架210之间形成有第一缝隙211，电池组件100靠近机尾的方向与机架210之间形成有第二缝隙212，电池组件100两侧的通孔102分别暴露于第一缝隙211和第二缝隙212中。从而，在无人机200朝前飞行的过程中，气流从第一缝隙211流入散热器15的散 热通道151，之后再从第二缝隙212中流出，从而将散热器15的热量散出。
在一些实施例中，该无人机200可以为农业无人机。农业无人机的机架210上还搭载有供液箱220，供液箱220与电池组件100相邻地设置于机架210上。
继续参见图13和图15，相比电池组件100，供液箱220更靠近机头方向。容易理解，电池组件100与供液箱220之间形成有第一缝隙211。换言之，供水箱220不能与电池组件100贴紧设置，而需要预留一定的缝隙，以允许外部环境中的空气流入或流出通孔102。
换言之，当电池组件100周围被机架210环绕时，电池组件100沿无人机200的俯仰轴方向的两侧与机架210之间均形成有缝隙；当电池组件100周围除了机架210外还存在其他安装于机架210上的设备(如供液箱220)时，电池组件100沿无人机200的俯仰轴方向的两侧与机架210及安装于机架210的设备之间均形成有缝隙。
图16示出了根据本申请实施例的无人机200的局部结构示意图，其中省略了供液箱220。参见图16，电池组件100通过安装件240卡接在机架210上。电池组件100位于通孔102以上的部分高于机架210设置，从而允许外部环境中的空气流入或流出通孔102。
本申请实施例的无人机200通过在电池组件100的两侧形成上述缝隙，从而在无人机200飞行过程中，能够利用无人机200飞行时的气流对散热器15进行散热，提高了电池组件100的散热效果。此外，由于本申请实施例中电池组件100具有较好的密封效果，从而能够满足农业无人机的电池的防水性能要求。
对于本申请的实施例，还需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合以得到新的实施例。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (18)

  1. 一种电池组件，其特征在于，包括：
    壳体，其内部限定有容置空间；
    电芯模组，包括多个电芯，所述电芯模组收容于所述壳体的容置空间内；以及
    散热器，安装于所述壳体的容置空间内，与所述电芯模组的极耳导热连接以对所述极耳散热，
    其中，所述散热器开设有多个贯通所述散热器相对两个侧面的散热通道，每个所述散热通道具有相对的两个开口；
    所述壳体与所述散热通道的每个所述开口对应的位置形成通孔。
  2. 根据权利要求1所述的电池组件，其特征在于，所述电芯模组还包括设置于所述多个电芯上方的极耳板，所述多个电芯之间通过所述极耳板实现并联和/或串联连接。
  3. 根据权利要求1所述的电池组件，其特征在于，所述散热器通过导热件与所述极耳导热连接。
  4. 根据权利要求3所述的电池组件，其特征在于，所述导热件为导热脂、导热胶以及导热垫中的至少一种。
  5. 根据权利要求1所述的电池组件，其特征在于，还包括：电源管理系统，所述电源管理系统包括电路板，用于对所述多个电芯的状态进行控制或/及监测；
    所述散热器将所述壳体的容置空间分隔形成位于上方的电器腔和位于下方的电芯腔；
    其中，所述电芯模组收容于所述电芯腔内，所述电路板收容于所述电器腔内。
  6. 根据权利要求5所述的电池组件，其特征在于，所述电源管理系统还包括与所述电芯模组电性连接的至少一条线路，
    所述散热器还包括：贯穿所述散热器上下表面的至少一个穿线通道，所述穿线通道连通所述电芯腔和所述电器腔，用于供所述至少一条线路通过；
    其中，所述穿线通道与所述散热通道相互隔绝。
  7. 根据权利要求6所述的电池组件，其特征在于，所述穿线通道包括用于供电源线通过的两个电源通道和用于供通信线通过的通信通道，
    其中，所述两个电源通道分别位于所述散热器的垂直于所述散热通道延伸方向的两侧，所述通信通道位于所述散热器的中部。
  8. 根据权利要求7所述的电池组件，其特征在于，所述散热器包括上表面、下表面以及在周向顺次连接在所述上表面和所述下表面之间的第一侧表面、第二侧表面、第三侧表面以及第四侧表面，
    其中，所述第一侧表面和所述第三侧表面相对设置，所述第二侧表面和所述第四侧表面相对设置；
    所述第一侧表面和第三侧表面的宽度大于所述第二侧表面和所述第四侧表面的宽度，
    所述散热通道相对的两个开口分别形成在所述第一侧表面和所述第三侧表面。
  9. 根据权利要求8所述的电池组件，其特征在于，所述电源通道为贯穿所述第三侧表面的开口槽。
  10. 根据权利要求8所述的电池组件，其特征在于，所述散热器的上表面、下表面、第一侧表面、第二侧表面、第三侧表面以及第四侧表面均光滑设置。
  11. 根据权利要求8所述的电池组件，其特征在于，所述散热器的第一侧表面和第三侧表面的上下两端分别凸出于所述散热器的上表面和下表面。
  12. 根据权利要求1所述的电池组件，其特征在于，所述壳体包括上盖板、下盖板以及连接在所述上盖板和所述下盖板之间的周向侧壁，其中，所述散热器设置于所述周向侧壁内。
  13. 根据权利要求12所述的电池组件，其特征在于，所述散热器与所述壳体的周向侧壁固定连接。
  14. 根据权利要求12所述的电池组件，其特征在于，所述上盖板的部分表面设置有散热结构。
  15. 根据权利要求12所述的电池组件，其特征在于，所述壳体上形成有凸出于所述周向侧壁的握持部。
  16. 一种无人机，其特征在于，包括：
    机架；和
    权利要求1至15中任一项所述的电池组件，所述电池组件安装于所述机架上，
    其中，所述电池组件两侧的通孔暴露于所述电池组件的外部，并且所述机架的外部的气流能够通过所述通孔，以对所述散热器进行散热。
  17. 根据权利要求16所述的无人机，其特征在于，所述电池组件的散热通道的延伸方向与所述无人机的横滚轴方向相同。
  18. 根据权利要求17所述的无人机，其特征在于，所述电池组件沿所述无人机的俯仰轴方向的两侧与所述机架或/及安装于所述机 架的设备之间均形成有缝隙，
    所述电池组件两侧的通孔暴露于两侧的所述缝隙中。
PCT/CN2021/129574 2021-11-09 2021-11-09 电池组件及无人机 WO2023082051A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207587927U (zh) * 2017-11-28 2018-07-06 福建荣华科技有限公司 一种恒温动力电池模块以及电动车
CN207690951U (zh) * 2017-08-10 2018-08-03 中信国安盟固利动力科技有限公司 一种实现主动散热并达到ip67的锂电池系统
CN210182442U (zh) * 2019-08-07 2020-03-24 富能宝能源科技有限公司 一种带有强排风结构的pack箱体
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207690951U (zh) * 2017-08-10 2018-08-03 中信国安盟固利动力科技有限公司 一种实现主动散热并达到ip67的锂电池系统
CN207587927U (zh) * 2017-11-28 2018-07-06 福建荣华科技有限公司 一种恒温动力电池模块以及电动车
CN210182442U (zh) * 2019-08-07 2020-03-24 富能宝能源科技有限公司 一种带有强排风结构的pack箱体
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

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