WO2022088392A1 - 夹板、电池模组及电池包 - Google Patents

夹板、电池模组及电池包 Download PDF

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Publication number
WO2022088392A1
WO2022088392A1 PCT/CN2020/134239 CN2020134239W WO2022088392A1 WO 2022088392 A1 WO2022088392 A1 WO 2022088392A1 CN 2020134239 W CN2020134239 W CN 2020134239W WO 2022088392 A1 WO2022088392 A1 WO 2022088392A1
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WO
WIPO (PCT)
Prior art keywords
battery
cell
side wall
along
splint
Prior art date
Application number
PCT/CN2020/134239
Other languages
English (en)
French (fr)
Inventor
刘祖勇
韦银涛
蒙玉宝
祝媛
刘金成
Original Assignee
湖北亿纬动力有限公司
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Publication date
Application filed by 湖北亿纬动力有限公司 filed Critical 湖北亿纬动力有限公司
Publication of WO2022088392A1 publication Critical patent/WO2022088392A1/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
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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 energy equipment, such as a splint, a battery module and a battery pack.
  • the internal expansion of the cells will reduce its cycle life. Therefore, after the cells are stacked into a group, a pre-tightening force will be applied to the cells through the end plates at both ends to suppress the expansion of the cells.
  • the cell In some cases of high-rate charge and discharge, the cell generates a large amount of heat, and the cell needs to be cooled by air to dissipate heat, or under low temperature conditions, the cell needs to be heated by warm air. Therefore, it is necessary to design gaps between the cells, which are used as air ducts to dissipate heat or heat the cells, so that the temperature of the cells in the entire module is more uniform.
  • the present application proposes a splint, which can not only better meet the heat dissipation requirements of the cells of the battery module, but also ensure the squeezing effect of a single cell, thereby improving the life of the cell.
  • the present application proposes a battery module, which can not only meet the requirements of thermal management of battery cells, but also ensure the squeezing effect of a single battery cell, thereby improving the life of the battery cells.
  • the present application proposes a battery pack, which has better temperature control performance and longer service life.
  • the embodiment of the present application discloses a splint, which is sandwiched between two adjacent cells of a battery module, the splint includes a plurality of bodies and stoppers, the bodies are arranged at intervals, and each of the bodies is arranged at intervals.
  • the main body is provided with an air flow channel, the opposite sides of each of the main bodies are respectively abutted on the two adjacent battery cells, the stopper is connected to the two ends of the plurality of main bodies, and the The stopper can stop at both ends of the battery cell along the length direction of the battery cell, and the stopper can also stop at both ends of the battery cell along the height direction of the battery cell.
  • the embodiment of the present application also discloses a battery module, comprising: a plurality of battery cells, the plurality of battery cells are arranged at intervals; the above-mentioned splint, the number of the splint plates, each of the splint plates It is sandwiched between two adjacent battery cores; a binding band is arranged around the battery core, and the binding band is arranged to bind the multiple battery cores and the multiple clamping plates.
  • the present application also discloses a battery pack, comprising: a casing with an air inlet and an air outlet; the above-mentioned battery module, the plurality of battery modules are arranged along the The length direction of the casing is distributed at intervals; the fan is arranged at the air outlet.
  • FIG. 1 is a schematic structural diagram of a splint of a battery module according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a battery module according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a battery pack according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of another direction of the battery pack according to the embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of an elastic layer disposed on the body of the splint in the battery module according to an embodiment.
  • Main body 111. Air flow channel; 112, First side wall; 113, Second side wall; 12, Stopper; 121, First blocking plate; , vertical plate; 1222, horizontal plate; 13, limit protrusion; 2, battery core; 3, strap; 4, end plate; 100, shell; 110, first air hole; 120, second air hole; 130, the third air hole; 140, the air outlet; 200, the fan; 300, the elastic layer.
  • first and second may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, regardless of order or importance.
  • plural means two or more.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the connection between the inner plates of two components.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the connection between the inner plates of two components.
  • the present application discloses a splint.
  • the splint is sandwiched between two adjacent cells 2 .
  • the splint includes a plurality of bodies 11 and stoppers 12 , and the plurality of bodies 11 are arranged at intervals.
  • each body 11 is provided with an air flow channel 111, the opposite sides of each body 11 are respectively abutted on the two battery cells 2, the stopper 12 is connected to both ends of the body 11, and the stopper 12 can stop the At both ends of the battery cell 2 along its length direction, the stopper 12 can also stop at both ends of the battery core 2 along its height direction.
  • the airflow can pass through the airflow channel 111 and the battery cell no matter when the cold air is passed to cool the cell 2 or the warm air is passed to heat the cell 2 . 2 is in full contact, so that the cooling or heating of the battery cell 2 is better achieved.
  • the opposite sides of the splint stop against the battery core 2, after the plurality of battery cores 2 and the plurality of splints are bound with the straps 3, each battery core 2 will be subjected to the contacting force against the battery core 2. Extrusion of the splint, thereby increasing the cycle life of the battery cell 2.
  • the stopper 12 can abut against both ends of the cell 2 in the length direction and both ends of the cell 2 in the height direction. Therefore, the stopper 12 limits the movement of the battery cell 2 along the length direction and the height direction thereof, so as to ensure the stability of the entire battery module.
  • the main body 11 of the splint is provided with an air flow channel 111, the hot air or cold air can fully contact the battery cell 2 through the air flow channel 111, which better realizes cooling or heating of electricity. Since the opposite sides of the splint are respectively abutted on the two cells 2, after the multiple cells 2 and the multiple splints are bound by the straps 3, each cell 2 will receive the splint against it. extrusion, thereby increasing the cycle life of the battery cell 2. Since the stopper 12 restricts the movement of the battery cell 2 from two directions of height and length, the occurrence of loosening or wiggling of the battery cell 2 is avoided, and the stability and reliability of the battery module are improved.
  • an elastic layer 300 is provided on the side wall of the battery core 2 against the body 11 .
  • the elastic layer 300 can be used for tolerance compensation and can play a buffering role to prevent the battery cell 2 from being bumped, and the elastic layer 300 can also make the battery cell 2 more evenly squeezed, thereby improving the cycle of the battery cell 2. service life.
  • the stopper 12 includes two baffle plates, the two baffle plates are respectively connected to two ends of the plurality of bodies 11 , and each baffle plate includes a connected first baffle plate 121 . and the second blocking plate 122, the first blocking plate 121 abuts against one end of the battery cell 2 along its length direction, the second blocking plate 122 abuts on one end of the battery cell 2 along its length direction and the battery cell 2 along its height on one end of the direction.
  • the fixing effect of the splint on the cell 2 is ensured, on the one hand, the connection stability between the splint and the cell 2 after the binding strap 3 is improved, The deformation of the entire battery module caused by the movement of the battery cell 2 during transportation is avoided.
  • the body 11 has a first side wall 112 and a second side wall 113 , and the first side wall 112 and the second side wall 113 stop against the two battery cells 2 respectively .
  • the first blocking plate 121 includes a plurality of vertical portions 1211 distributed along the height direction of the battery cell 2 . Both ends of each vertical portion 1211 are connected to the two bodies 11 respectively. One vertical portion 1211 is connected to the first side wall 112 , and the other vertical portion 1211 is connected to the second side wall 113 . After the installation is completed, among the two adjacent vertical portions 1211 , one vertical portion 1211 abuts against one cell 2 , and the other vertical portion 1211 abuts against another cell 2 .
  • first blocking plates 121 are two connected to the two ends of the main body 11 , the use of the technical solution in which the vertical portions 1211 on the same first blocking plate 121 are alternately abutted against each other can improve the edge of each cell 2 to the maximum limit.
  • the contact area between the two ends in the length direction and the two first blocking plates 121 ensures the stability of the battery cell 2 .
  • the second blocking plate 122 includes two L-shaped plates, and the two L-shaped plates are respectively connected to the first side wall 112 and the second side wall 113 .
  • the horizontal plate 1222 of the plate is connected to the body 11 and stops at one end of the cell 2 along its height direction
  • the vertical plate 1221 of the L-shaped plate is connected to the uppermost vertical portion 1211 and stops at the cell 2. 2 on one end along its length. Since the second blocking plate 122 is an L-shaped plate, that is to say, the second blocking plate 122 is fitted at the corner of the battery cell 2 .
  • the stability of the battery core 2 can better avoid the phenomenon of the battery core 2 shaking.
  • the airflow channels 111 extend along the height direction of the battery cell 2 , and each body 11 is provided with a plurality of airflow channels 111 spaced along its length direction.
  • the plurality of airflow channels 111 are spaced apart on the main body 11 , which ensures the strength of the main body 11 on the premise of ensuring the smooth flow of air flow, thereby avoiding the occurrence of damage to the main body 11 caused by the expansion of the battery cells 2 .
  • the splint includes a main body 11 and a stopper 12 , the main bodies 11 are three spaced apart, and each main body 11 has a first side wall 112 and a second side wall 113 .
  • the two side walls 113 abut against the two battery cells 2 respectively.
  • the stopper 12 includes two baffles, each of which is connected to one end of the three bodies 11 .
  • Each baffle includes a first blocking plate 121 and a second blocking plate 122 which are connected.
  • the first blocking plate 121 includes two vertical portions 1211 distributed along the height direction of the cell 2 , two ends of each vertical portion 1211 are respectively connected with the two bodies 11 , and one of the vertical portions 1211 is connected to the first On the side wall 112 , another vertical portion 1211 is connected to the second side wall 113 .
  • the vertical portions 1211 of the two first blocking plates 121 located at the same height are respectively connected to the first side wall 112 and the second side wall 113 .
  • the lower vertical portion 1211 of one first blocking plate 121 is connected to the first side wall 112
  • the upper vertical portion 1211 is connected to the second side wall 113
  • the other first blocking plate 121 The vertical portion 1211 located below is connected to the second side wall 113
  • the vertical portion 1211 located above is connected to the first side wall 112 .
  • the second blocking plate 122 includes two L-shaped plates. The two L-shaped plates are connected to the first side wall 112 and the second side wall 113 respectively.
  • the horizontal plate 1222 of the L-shaped plate is connected to the main body 11 and stops against the On one end of the core 2 along its height direction, the vertical plate 1221 of the L-shaped plate is connected to the uppermost vertical portion 1211 and abuts on one end of the battery core 2 along its length direction.
  • the following describes a battery module according to a specific embodiment of the present application with reference to FIG. 2 .
  • the battery module of the embodiment of the present application includes a battery cell 2 , the aforementioned splint and a strap 3 .
  • There are multiple battery cells 2 and the multiple battery cells 2 are arranged at intervals; there are multiple splints, and each splint It is sandwiched between two adjacent cells 2 , and the straps 3 are arranged around the cells 2 , and the straps 3 are set to bind a plurality of cells 2 and a plurality of splints.
  • the battery module of the embodiment of the present application has the aforementioned splint, which can not only meet the requirements of thermal management of the battery cell 2 , but also ensure the squeezing effect of a single battery cell 2 , thereby improving the battery cell 2 . lifespan.
  • the stopper 12 is provided with a limiting protrusion 13 , and the strap 3 stops against the limiting protrusion 13 .
  • the abutment between the limiting protrusion 13 and the strap 3 can limit the stopper 12 and prevent the stopper from moving along the height direction of the cell 2, thereby avoiding vibration and uneven expansion inside the cell 2 resulting in the splint The phenomenon of sliding out the battery module occurs.
  • the number and quantity of the limiting protrusions 13 can be selected according to actual needs, and the parameters of the limiting protrusions 13 are not limited here.
  • the battery module includes a cell 2 , a splint, a strap 3 and an end plate 4 .
  • the number of the cells 2 is eight, and the eight cells 2 are arranged at intervals, the number of the splints is fourteen, and two adjacent cells 2 are spaced along the height direction of the cells 2.
  • the distributed splint, the number of end plates 4 is two, the two end plates 4 are located outside the eight cells 2, the number of straps 3 is two, and the two straps 3 are along the height direction of the cells 2 Distributed at intervals, each strap 3 is set to bind the cell 2 , the splint and the end plate 4 .
  • the structure of the splint has been described in detail above.
  • the present application also discloses a battery pack
  • the battery pack includes a casing 100, a battery module and a fan 200
  • the casing 100 is provided with an air inlet and an air outlet 140
  • the battery module The plurality of battery modules are distributed at intervals along the length direction of the casing 100
  • the fan 200 is arranged at the air outlet 140 .
  • the air inlet includes a first air hole 110 , the first air hole 110 is arranged on the bottom wall of the housing 100 , and the position of the first air hole 110 is arranged corresponding to the airflow channel 111 .
  • the arrangement of the first air holes 110 corresponding to the air flow channels 111 can increase the contact area between the air flow and the battery cell 2 , thereby improving the heating or cooling effect of the battery cell 2 .
  • the lengths of the plurality of first air holes 110 along the length direction of the casing 100 are different, and the length of the first air holes 110 that are closer to the fan 200 is larger.
  • the fan 200 can extract the heat in the battery module by drawing air outward. Therefore, the heat dissipation or heating effect of the battery cells 2 far away from the fan 200 is better, so that multiple battery cells 2 will appear.
  • Local supercooling or local superheating the length of the first air hole 110 close to the fan 200 is relatively large, and the length of the first air hole 110 away from the fan 200 is relatively small, so that the heat dissipation or heating effect of the plurality of battery cells 2 can be better. , so as to avoid local overheating or local overcooling in the casing 100 .
  • the air inlet further includes second air holes 120 , the second air holes 120 are arranged on two opposite side walls of the housing 100 , and each second air hole 120 corresponds to two adjacent battery molds Gap settings between groups.
  • the second air holes 120 are arranged corresponding to the gaps between two adjacent battery modules, which can improve the uniformity of heating or heat dissipation of the plurality of battery modules by the airflow, thereby ensuring uniform temperature inside the entire battery pack and avoiding battery The phenomenon of local overheating or overcooling inside the package occurs.
  • the air inlet further includes a third air hole 130 , the third air hole 130 and the air outlet 140 are provided on the other two opposite side walls of the casing 100 , and the third air hole 130 corresponds to each battery mold
  • the gap between two adjacent battery cells 2 in the group is set.
  • the third air holes 130 are arranged corresponding to the gaps between the two adjacent cells 2 , which can improve the uniformity of heating or heat dissipation of the plurality of cells 2 in the same battery module by the airflow, thereby ensuring the interior of the entire battery pack.
  • the temperature uniformity of the battery pack can be avoided to avoid the occurrence of local overheating or overcooling inside the battery pack.
  • the air inlet includes at least one of a first air hole 110 , a second air hole 120 and a third air hole 130 .
  • the battery pack according to the embodiment of the present application will be described below with reference to FIGS. 3-4 .
  • the battery pack includes a casing 100, a battery module and a fan 200.
  • the casing 100 is provided with an air inlet and an air outlet 140, and there are four battery modules.
  • the housing 100 is distributed at intervals in the longitudinal direction, and the fan 200 is provided at the air outlet 140 .
  • the air outlets 140 are provided on the rear side wall of the housing 100 , and there are two spaced apart, and each air outlet 140 is provided with a fan 200 .
  • the air inlet includes a first air hole 110 , a second air hole 120 and a third air hole 130 .
  • the first air holes 110 are disposed on the bottom wall of the casing 100 , and the first air holes 110 are distributed in seven rows and four columns, and each first air hole 110 is disposed corresponding to an airflow channel 111 of a battery module.
  • There are six second air holes 120 and three second air holes 120 are respectively provided on the left side wall and the right side wall of the casing 100 , and each second air hole 120 corresponds to the gap between two adjacent battery modules. set up.
  • the third air holes 130 are arranged on the front side wall of the casing 100 , and there are seven spaced apart, and each second air hole 120 is arranged corresponding to a gap between two adjacent cells 2 .
  • the battery pack of the embodiment of the present application has the aforementioned battery module, which improves the temperature control performance of the battery pack and prolongs the service life of the battery pack.

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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)
  • Battery Mounting, Suspending (AREA)

Abstract

一种夹板、电池模组及电池包，该夹板夹设在电池模组的相邻的两个电芯(2)之间，夹板包括多个本体(11)和止挡件(12)，多个本体间隔设置，每个本体上设有气流通道(111)，每个本体的相对两侧分别抵接在相邻的两个电芯上，止挡件连接在多个本体的两端，止挡件能够止抵在电芯沿电芯长度方向的两端，止挡件还能够止抵在电芯沿电芯高度方向的两端。

Description

夹板、电池模组及电池包
本申请要求申请日为2020年10月26日、申请号为202011157260.1的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及能源设备技术领域，例如涉及一种夹板、电池模组及电池包。
背景技术
电池模组在长期充放电循环后，其电芯内部膨胀会降低其循环寿命，因此会在电芯堆叠成组后通过两端的端板对电芯施加一个预紧力，抑制电芯的膨胀。在一些大倍率充放电的情况下，电芯发热量大，需要通过风冷对电芯散热，或者低温条件下，需要通过暖风对电芯进行加热。因此，需要在电芯之间设计间隙，作为风道对电芯进行散热或加热，使整个模组的电芯温度更加均匀。由于电芯之间增加了风道，而在固定电芯时还是采用仅挤压电芯的两端来固定电芯的结构，这样就会使得电芯中间失去了挤压力。虽然满足了电芯热管理的要求，但是对单个电芯挤压效果降低，无法最大限度提升电芯寿命。
发明内容
本申请提出了一种夹板，该夹板既能够较好满足电池模组的电芯的散热需求，又能够确保对单个电芯的挤压效果，从而提升电芯寿命。
本申请提出了一种电池模组，该电池模组既能较好地满足电芯热管理的要求，又能确保对单个电芯的挤压效果，从而提升电芯寿命。
本申请提出了一种电池包，该电池包的温度控制性能较好，使用寿命较长。
本申请实施例公开了一种夹板，夹设在电池模组的相邻的两个电芯之间，所述夹板包括多个本体和止挡件，所述多个本体间隔设置，每个所述本体上设有气流通道，每个所述本体的相对两侧分别抵接在相邻的所述两个电芯上，所述止挡件连接在所述多个本体的两端，所述止挡件能够止抵在所述电芯沿所述电芯的长度方向的两端，所述止挡件还能够止抵在所述电芯沿所述电芯的高度方向的两端。
本申请实施例还公开了一种电池模组，包括：电芯，所述电芯为多个，所 述多个电芯间隔设置；上述夹板，所述夹板为多个，每个所述夹板夹设在相邻的两个所述电芯之间；绑带，所述绑带环绕所述电芯设置，所述绑带设置为绑扎所述多个电芯及所述多个夹板。
本申请还公开了一种电池包，包括：壳体，所述壳体上设有进风口和出风口；上述电池模组，所述电池模组为多个，所述多个电池模组沿所述壳体的长度方向间隔分布；风机，所述风机设在所述出风口处。
附图说明
图1是本申请实施例的电池模组的夹板的结构示意图。
图2是本申请实施例的电池模组的结构示意图。
图3是本申请实施例的电池包的结构示意图。
图4是本申请实施例的电池包的另一个方向的结构示意图。
图5是一实施例提供的电池模组中夹板的本体上设置弹性层的结构示意图。
附图标记：
11、本体；111、气流通道；112、第一侧壁；113、第二侧壁；12、止挡件；121、第一阻挡板；1211、竖直部；122、第二阻挡板；1221、竖直板；1222、水平板；13、限位凸；2、电芯；3、绑带；4、端板；100、壳体；110、第一风孔；120、第二风孔；130、第三风孔；140、出风口；200、风机；300、弹性层。
具体实施方式
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，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，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该特征，用于区别描述特征，无顺序之分，无轻重之分。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸 连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内板的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
下面参考图1描述本申请实施例的夹板的具体结构。
如图1-图2所示，本申请公开了一种夹板，夹板夹设在相邻的两个电芯2之间，夹板包括多个本体11和止挡件12，多个本体11间隔设置，每个本体11上设有气流通道111，每个本体11的相对两侧分别抵接在两个电芯2上，止挡件12连接在本体11的两端，止挡件12能够止抵在电芯2沿其长度方向的两端，止挡件12还能够止抵在电芯2沿其高度方向的两端。
在实际组装完成中，由于夹板的本体11上设有气流通道111，这样无论是在通入冷风冷却电芯2还是通入暖风加热电芯2时，气流都可以通过气流通道111与电芯2充分接触，从而较好地实现了对电芯2的冷却或者加热。与此同时，由于夹板的相对设置的两侧均止抵在电芯2上，采用绑带3将多个电芯2及多个夹板绑扎完成后，每个电芯2都会受到与其止抵的夹板的挤压，从而增加电芯2的循环使用寿命。此外，止挡件12能够止抵在电芯2的长度方向的两端以及电芯2的高度方向的两端上。由此，止挡件12限定了电芯2沿其长度方向及高度方向的运动，保证了整个电池模组的稳定性。
本申请实施例的夹板，由于夹板的本体11上设有气流通道111，使得热气流或者冷气流能够通过气流通道111与电芯2充分接触，较好地实现了对电的冷却或者加热。由于夹板的相对设置的两侧分别止抵在两个电芯2上，采用绑带3将多个电芯2及多个夹板绑扎完成后，每个电芯2都会收到与其止抵的夹板的挤压，从而增加电芯2的循环使用寿命。由于止挡件12从高度及长度两个方向上限制了电芯2的运动，避免了电芯2松动或者窜动的现象发生，提升了电池模组的稳定性及可靠性。
在一些实施例中，如图2和图5所示，本体11止抵在电芯2的侧壁上设有弹性层300。由此，弹性层300能够用于公差补偿并且能够起到缓冲作用，避免电芯2出现磕碰伤，弹性层300还能够使得电芯2受到的挤压更为均匀，从而提升电芯2的循环使用寿命。
在一些实施例中，如图2所示，止挡件12包括两个挡板，两个挡板分别连接在多个本体11的两端，每个挡板均包括相连的第一阻挡板121和第二阻挡板122，第一阻挡板121止抵在电芯2沿其长度方向的一端上，第二阻挡板122止 抵在电芯2沿其长度方向的一端和电芯2沿其高度方向的一端上。通过第一阻挡板121和第二阻挡板122的止挡作用，确保了夹板对电芯2的固定作用，一方面提升了绑扎绑带3后夹板与电芯2的连接稳定性，另一方面避免了运输过程中电芯2窜动导致的整个电池模组变形的现象发生。
在一些具体的实施例中，如图2所示，本体11具有第一侧壁112和第二侧壁113，第一侧壁112和第二侧壁113分别止抵在两个电芯2上。第一阻挡板121包括多个沿电芯2的高度方向分布的竖直部1211，每个竖直部1211的两端分别与两个本体11相连，相邻的两个竖直部1211中，一个竖直部1211连接在第一侧壁112上，另一个竖直部1211连接在第二侧壁113上。在安装完毕后，相邻的两个竖直部1211中，一个竖直部1211止抵在一个电芯2上，另一个竖直部1211止抵在另一个电芯2上。由于第一阻挡板121为连接在本体11的两端的两个，采用同一个第一阻挡板121上的竖直部1211交替止抵的技术方案，能够最大限定度提升每个电芯2的沿其长度方向的两端与两个第一阻挡板121的接触面积，从而保证了电芯2的稳定性。
在一些实施例中，如图1和图2所示，第二阻挡板122包括两个L型板，两个L型板分别连接在第一侧壁112和第二侧壁113上，L型板的水平板1222与本体11相连，且止抵在电芯2沿其高度方向的一端上，L型板的竖直板1221与位于最上方的竖直部1211相连，且止抵在电芯2沿其长度方向的一端上。由于第二阻挡板122为L型板，也就是说第二阻挡板122配合在电芯2的拐角处，这种配合在电芯2拐角处的结构能够从两个方向限定电芯2，提升电芯2的稳定性，较好地避免了电芯2晃动的现象发生。
在一些实施例中，气流通道111沿电芯2的高度方向延伸设置，且每个本体11上设有多个沿其长度方向间隔分布的气流通道111。多个气流通道111在本体11上间隔分布，在确保了气流顺畅流动的前提下保证了本体11的强度，从而避免了电芯2膨胀引起的本体11损坏的现象发生。
实施例：
下面参考图1描述本申请一个具体实施例的夹板。
如图1所示，夹板包括本体11和止挡件12，本体11为间隔设置的三个，每个本体11均具有第一侧壁112和第二侧壁113，第一侧壁112和第二侧壁113分别止抵在两个电芯2上。止挡件12包括两个挡板，每个挡板均连接在三个本体11的一端上。每个挡板包括相连的第一阻挡板121和第二阻挡板122。第一 阻挡板121包括两个沿电芯2的高度方向分布的竖直部1211，每个竖直部1211的两端分别与两个本体11相连，且其中一个竖直部1211连接在第一侧壁112上，另一个竖直部1211连接在第二侧壁113上。其中，两个第一阻挡板121位于同一高度的竖直部1211分别连接在第一侧壁112及第二侧壁113上。示例性地，一个第一阻挡板121的位于下方的竖直部1211连接在第一侧壁112上，位于上方的竖直部1211连接的第二侧壁113上，另一个第一阻挡板121的位于下方的竖直部1211连接在第二侧壁113上，位于上方的竖直部1211连接在第一侧壁112上。第二阻挡板122包括两个L型板，两个L型板分别连接在第一侧壁112和第二侧壁113上，L型板的水平板1222与本体11相连，且止抵在电芯2沿其高度方向的一端上，L型板的竖直板1221与位于最上方的竖直部1211相连，且止抵在电芯2沿其长度方向的一端上。
下面参考图2描述本申请一个具体实施例的电池模组。
如图2所示，本申请实施例的电池模组包括电芯2、前文的夹板和绑带3，电芯2为多个，多个电芯2间隔设置；夹板为多个，每个夹板夹设在相邻的两个电芯2之间，绑带3环绕电芯2设置，绑带3设置为绑扎多个电芯2及多个夹板。
本申请实施例的电池模组，由于具有前文所述的夹板，既能较好地满足电芯2的热管理的要求，又能确保对单个电芯2的挤压效果，从而提升电芯2的寿命。
在一些实施例中，如图1和图2所示，止挡件12上设有设有限位凸13，绑带3止抵在限位凸13上。限位凸13与绑带3的抵接能够实现对止挡件12的限制，避免了止档件沿电芯2的高度方向发生窜动，从而避免振动和电芯2内部不均匀膨胀导致夹板滑出电池模组的现象发生。
可选地，限位凸13的个数以及数量可以根据实际需要选择，在此不对限位凸13的参数进行限定。
实施例：
下面参考图1-图2描述本申请一个具体实施例的电池模组。
如图1-图2所示，该电池模组包括电芯2、夹板、绑带3和端板4。电芯2的个数为八个，且八个电芯2间隔设置，夹板的个数为十四个，相邻的两个电芯2之间设有两个沿电芯2的高度方向间隔分布的夹板，端板4的个数为两个，两个端板4位于八个电芯2的外侧，绑带3的个数为两个，两个绑带3沿电芯2 的高度方向间隔分布，每个绑带3均设置为绑扎电芯2、夹板及端板4。夹板的结构在前文中已经进行了详细叙述。
下面参考图3-图4描述本申请实施例的电池包的具体结构。
如图3-图4所示，本申请还公开了一种电池包，该电池包包括壳体100、电池模组和风机200，壳体100上设有进风口和出风口140，电池模组为多个，多个电池模组沿壳体100的长度方向间隔分布，风机200设在出风口140处。
在一些实施例中，进风口包括第一风孔110，第一风孔110设在壳体100的底壁上，且第一风孔110的位置与气流通道111对应设置。第一风孔110对应气流通道111设置能够提升气流与电芯2的接触面积，从而提升电芯2的加热或者冷却效果。
可选的，多个第一风孔110沿壳体100的长度方向的长度不同，且越靠近风机200的第一风孔110的长度越大。在实际散热过程中，风机200能够以向外抽风的方式将电池模组内的热量抽出，因此，远离风机200的电芯2的散热或者加热效果较好，这样就会出现多个电芯2局部过冷或者局部过热的现象。而在本实施例中，靠近风机200的第一风孔110的长度较大，远离风机200的第一风孔110的长度较小，这样能够使得多个电芯2的散热或者加热效果较好，从而避免壳体100内出现局部过热或者局部过冷的现象。
在一些实施例中，进风口还包括第二风孔120，第二风孔120设在壳体100相对设置的两个侧壁上，每个第二风孔120均对应相邻两个电池模组之间的缝隙设置。第二风孔120对应相邻的两个电池模组之间的缝隙设置，能够提升气流对多个电池模组的加热或者散热的均匀性，从而保证整个电池包内部的温度均匀地，避免电池包内部局部过热或者过冷的现象发生。
在一些实施例中，进风口还包括第三风孔130，第三风孔130和出风口140设在壳体100另外两个相对设置的侧壁上，第三风孔130对应每个电池模组内的相邻两个电芯2的之间的缝隙设置。第三风孔130对应相邻的两个电芯2之间的缝隙设置，能够提升气流对同一个电池模组内的多个电芯2的加热或者散热的均匀性，从而保证整个电池包内部的温度均匀性，避免电池包内部局部过热或者过冷的现象发生。
可选地，进风口包括第一风孔110、第二风孔120以及第三风孔130中的至少一种。
实施例：
下面参考图3-图4描述本申请实施例的电池包。
如图3-图4所示，该电池包包括壳体100、电池模组和风机200，壳体100上设有进风口和出风口140，电池模组为四个，四个电池模组沿壳体100的长度方向间隔分布，风机200设在出风口140处。出风口140设在壳体100的后侧壁上，且为间隔分布的两个，每个出风口140均设有一个风机200。进风口包括第一风孔110、第二风孔120和第三风孔130。第一风孔110设在壳体100的底壁上，第一风孔110呈七排四列分布，每个第一风孔110均对应一个电池模组的气流通道111设置。第二风孔120为六个，壳体100的左侧壁和右侧壁上分别设有三个第二风孔120，每个第二风孔120均对应相邻的两个电池模组的缝隙设置。第三风孔130设在壳体100的前侧壁上，且为间隔设置的七个，每个第二风孔120对应相邻的两个电芯2的缝隙设置。
本申请实施例的电池包，由于具有前文所述的电池模组，提升了电池包的温度控制性能，延长了电池包的使用寿命。
在本说明书的描述中，参考术语“有些实施例”、“其他实施例”、等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。

Claims (10)

  1. 一种夹板，夹设在电池模组的相邻的两个电芯(2)之间，所述夹板包括多个本体(11)和止挡件(12)，所述多个本体(11)间隔设置，每个所述本体(11)上设有气流通道(111)，每个所述本体(11)的相对两侧分别抵接在相邻的所述两个电芯(2)上，所述止挡件(12)连接在所述多个本体(11)的两端，所述止挡件(12)能够止抵在所述电芯(2)沿所述电芯(2)的长度方向的两端，所述止挡件(12)还能够止抵在所述电芯(2)沿所述电芯(2)的高度方向的两端。
  2. 根据权利要求1所述的夹板，其中，所述本体(11)止抵在所述电芯(2)的侧壁上设有弹性层(300)。
  3. 根据权利要求1所述的夹板，其中，所述止挡件(12)包括两个挡板，所述两个挡板分别连接在所述多个本体(11)的两端，每个所述挡板包括相连的第一阻挡板(121)和第二阻挡板(122)，所述第一阻挡板(121)止抵在所述电芯(2)沿所述电芯(2)的长度方向的一端上，所述第二阻挡板(122)止抵在所述电芯(2)沿所述电芯(2)的长度方向的一端和所述电芯(2)沿所述电芯(2)的高度方向的一端上。
  4. 根据权利要求3所述的夹板，其中，所述本体(11)具有第一侧壁(112)和第二侧壁(113)，所述第一侧壁(112)和所述第二侧壁(113)分别止抵在相邻的所述两个电芯(2)上；
    所述第一阻挡板(121)包括多个沿所述电芯(2)的高度方向分布的竖直部(1211)，每个所述竖直部(1211)的两端分别与两个所述本体(11)相连，相邻的两个所述竖直部(1211)中，一个所述竖直部(1211)连接在所述第一侧壁(112)上，另一个所述竖直部(1211)连接在所述第二侧壁(113)上。
  5. 根据权利要求4所述的夹板，其中，所述第二阻挡板(122)包括两个L型板，所述两个L型板分别连接在所述第一侧壁(112)和所述第二侧壁(113)上，所述L型板的水平板(1222)与所述本体(11)相连，且止抵在所述电芯(2)沿所述电芯(2)的高度方向的一端上，所述L型板的竖直板(1221)与相邻的所述竖直部(1211)相连，且止抵在所述电芯(2)沿所述电芯(2)的长度方向的一端上。
  6. 根据权利要求1所述的夹板，其中，所述气流通道(111)沿所述电芯(2)的高度方向延伸设置，且每个所述本体(11)上设有多个沿所述本体(11)的长度方向间隔分布的所述气流通道(111)。
  7. 一种电池模组，包括：
    电芯(2)，所述电芯(2)为多个，所述多个电芯(2)间隔设置；
    如权利要求1-6中任一项所述的夹板，所述夹板为多个，每个所述夹板夹设 在相邻的两个所述电芯(2)之间；
    绑带(3)，所述绑带(3)环绕所述电芯(2)设置，所述绑带(3)设置为绑扎所述多个电芯(2)及所述多个夹板。
  8. 根据权利要求7所述的电池模组，其中，所述止挡件(12)上设有限位凸(13)，所述绑带(3)止抵在所述限位凸(13)上。
  9. 一种电池包，包括：
    壳体(100)，所述壳体(100)上设有进风口(110,120,130)和出风口(140)；
    如权利要求7或8所述的电池模组，所述电池模组为多个，所述多个电池模组沿所述壳体(100)的长度方向间隔分布；
    风机(200)，所述风机(200)设在所述出风口(140)处。
  10. 根据权利要求9所述的电池包，其中，所述进风口(110,120,130)包括以下至少之一：
    多个第一风孔(110)，所述多个第一风孔(110)设在所述壳体(100)的底壁上，且与所述气流通道(111)对应设置；或
    多个第二风孔(120)，所述多个第二风孔(120)设在所述壳体(100)相对设置的两个侧壁上，每个所述第二风孔(120)对应相邻两个所述电池模组之间的缝隙设置；或
    多个第三风孔(130)，所述多个第三风孔(130)和所述出风口(140)分别设在所述壳体(100)另外两个相对设置的侧壁上，每个第三风孔(130)对应一个所述电池模组内的相邻两个所述电芯(2)的之间的缝隙设置。
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