WO2024027430A1 - 电池模组固定端板及电池模组 - Google Patents

电池模组固定端板及电池模组 Download PDF

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Publication number
WO2024027430A1
WO2024027430A1 PCT/CN2023/105194 CN2023105194W WO2024027430A1 WO 2024027430 A1 WO2024027430 A1 WO 2024027430A1 CN 2023105194 W CN2023105194 W CN 2023105194W WO 2024027430 A1 WO2024027430 A1 WO 2024027430A1
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WO
WIPO (PCT)
Prior art keywords
end plate
groove
battery module
reinforcing
plate body
Prior art date
Application number
PCT/CN2023/105194
Other languages
English (en)
French (fr)
Inventor
卓威
易昊昊
Original Assignee
武汉亿纬储能有限公司
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
Priority claimed from CN202310447917.5A external-priority patent/CN116315385A/zh
Priority claimed from CN202320944116.5U external-priority patent/CN220138525U/zh
Application filed by 武汉亿纬储能有限公司 filed Critical 武汉亿纬储能有限公司
Publication of WO2024027430A1 publication Critical patent/WO2024027430A1/zh

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains

Definitions

  • the present application relates to the field of battery technology, for example, to a battery module fixed end plate and a battery module.
  • Power batteries are the power sources that provide power for tools, mostly referring to batteries that provide power for electric cars, electric trains, electric bicycles, and golf carts.
  • a battery module is a structure in which multiple batteries are stacked together for easy fixation and transportation. Generally, multiple batteries are placed on the bottom plate and then fixed through the side end plates.
  • the main body of the end plate has a honeycomb structure in the thickness direction, which enhances the structural strength of the end plate and reduces the weight of the end plate; structural stability; the main body of the end plate has a honeycomb structure in the thickness direction, and the end plate fixing holes are provided on the right and left sides of the end plate body.
  • This application provides a battery module fixed end plate, which strengthens the support strength of the middle part of the end plate and reduces the risk of damage to the end plate.
  • embodiments of the present application provide a battery module fixed end plate, which includes an end plate body.
  • a reinforcing structure is provided on one side of the end plate body.
  • the reinforcing structure includes a plurality of ribs whose depth direction is in the Z direction.
  • Reinforcing grooves a plurality of the reinforcing grooves are arranged in an array along the X direction and the Y direction; fixed structures are provided at both ends of the end plate body, and the end plate body is located in the middle of one side of the reinforcing structure along the Y direction At least one receiving groove is provided, and the groove walls of the two opposite ends of the receiving groove along the Y direction are provided with coaxial through holes to enable the insertion of reinforcing rods; the reinforcing structures are adjacently arranged on both sides of the receiving groove .
  • a plurality of U-shaped first reinforcing ribs are provided in the accommodating groove, and the first reinforcing ribs are fixed on both side walls of the accommodating groove and the end plate body to support the reinforcing ribs. Rod.
  • a plurality of second reinforcing ribs intersecting with each other are provided in the reinforcing groove adjacent to the receiving groove, and the ends of the second reinforcing ribs are connected to the groove wall of the reinforcing groove. intersection point.
  • the through hole on at least one side is a threaded hole
  • the reinforcing rod is a long screw
  • At least two of the reinforcing grooves in the Y direction are provided with third reinforcing ribs, and the reinforcing grooves provided with the third reinforcing ribs are symmetrically arranged on both sides of the receiving groove, The two third reinforcing ribs are arranged in a T-shape in the reinforcing groove.
  • At least two of the reinforcing grooves in the X direction are provided with the third reinforcing ribs.
  • the battery module fixed end plate is further provided with a first notch, and the first notch is provided at one end of the through hole.
  • the fixing structure is two first fixing holes provided on both sides of the end plate body away from the receiving groove, and the first fixing holes pass through the Y-direction up and down.
  • End plate body; fracture grooves are provided on both sides of the end plate body to split the first fixing hole into two sections.
  • the battery module fixed end plate is further provided with a second notch, and the second notch is provided at one end of the first fixing hole.
  • the battery module fixed end plate is further provided with a plurality of second fixing holes, and the second fixing holes are provided on the side wall of the end plate body away from the receiving groove.
  • limiting components are further provided on both sides of the end plate body, and the limiting components are configured as limiting strapping straps.
  • the limiting assembly includes two limiting protrusions or limiting grooves arranged on both sides of the end plate body away from the receiving groove and spaced apart along the Y direction.
  • the limiting protrusion or the limiting groove is provided with an inclined guide surface
  • the opposite surfaces of the two limiting protrusions are arranged so that the inclined guide surfaces face each other, so that a limited space for limiting the strapping band is formed between the two limiting protrusions; or, the limiting groove is arranged along the Y
  • the opposite groove walls in the direction are the inclined guide surfaces, so that the limiting groove forms a limited space for limiting the strapping band.
  • the battery module fixed end plate further includes a fixed groove group, the fixed groove group is disposed on either side of the end of the receiving groove, and the fixed groove group is on one side of the reinforcing structure.
  • the fixed groove group includes a first fixed groove, a second fixed groove and/or a third fixed groove, the first fixed groove is configured to fix the integrated busbar (Cells Contact System, CCS) component, and the second fixed groove
  • the fixing slot is configured to fix the insulating block, and the third fixing slot is configured to fix the wire harness.
  • a positioning guide groove is provided on the opposite inner wall of the second fixing groove so as to be able to cooperate with the protrusion provided on the insulating block for insertion.
  • a wire passage hole is provided on the groove wall of the third fixing groove, so that external wire harnesses can pass through the wire passage hole and be concentrated into the third fixing groove for binding.
  • the material of the end plate body is aluminum.
  • embodiments of the present application provide a battery module, including the above-mentioned battery module fixed end plate, PC insulation sheet, battery module aluminum row positive electrode, end plate positioning block, connecting row and battery core.
  • the reinforcing rod can be inserted into the receiving groove, so that when the opposite end plate bodies are fixed through the fixing structure, the reinforcing rod in the middle can touch the end plate body from the middle, so that The support strength for the middle part of the end plate body is increased on the opposite side of the battery, thereby reducing the probability of deformation or even breakage of the end plate body in the middle part and reducing the risk of damage to the end plate body.
  • Figure 1 is a schematic structural diagram of the fixed end plate of the battery module of the present application.
  • Figure 2 is a front view of the fixed end plate of the battery module of the present application showing the side of the receiving groove;
  • Figure 3 is a side view of the fixed end plate of the battery module of the present application showing the side of the first fixing groove
  • Figure 4 is a side view of the side of the battery module fixing end plate showing the second fixing hole
  • FIG. 5 is a schematic structural diagram of the battery module of the present application.
  • connection should be understood in a broad sense.
  • it can be a fixed connection, a detachable connection, or an integral body.
  • It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements.
  • the specific meanings of the above terms in this application can be understood on a case-by-case basis.
  • the term “above” or “below” a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them.
  • the terms “above”, “above” and “above” a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature.
  • “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • battery modules stack multiple batteries together and then clamp them with oppositely arranged end plates.
  • connectors are usually used to apply force from both ends of the end plates, so that the pulling force will pull the end plates from both ends in the direction of the batteries clamped in the two end plates, while the batteries will pull in the opposite direction.
  • the direction is against the top plate, which may easily cause the middle part of the end plate to deform or even break.
  • this embodiment provides a battery module fixed end plate.
  • the battery module fixed end plate includes an end plate body 1, and fixed structures are provided at both ends of the end plate body 1, and A reinforcing structure is provided on one side of the end plate body 1.
  • the reinforcing structure includes a plurality of reinforcing grooves 2 along the Z direction.
  • the plurality of reinforcing grooves 2 are distributed in an array along the X direction and the Y direction. It should be noted here that as shown in FIG. 1 , the X direction is the length direction of the end plate body 1 , the Y direction is the width direction of the end plate body 1 , and the Z direction is the thickness direction of the end plate body 1 .
  • the middle part of the end plate body 1 on one side of the reinforcing structure is provided with at least one receiving groove 3 along the Y direction.
  • the groove walls of the two opposite ends of the receiving groove 3 along the Y direction are provided with coaxial through holes 4 to enable the insertion of reinforcing rods;
  • the reinforcing structures are adjacently arranged on both sides of the receiving groove 3 .
  • the reinforcing rod can be inserted into the receiving groove 3, so that when the opposite end plate body 1 is fixed through the fixing structure, the opposite side of the battery is increased.
  • the support strength of the middle part of the end plate body 1 strengthens the structural strength of the middle part, thereby reducing the probability of the end plate body 1 deforming or even breaking in the middle part, and reducing the risk of damage to the end plate body 1 .
  • the battery module fixed end plate includes an end plate body 1.
  • the material of the end plate body 1 can be, but is not limited to, aluminum.
  • the aluminum material reduces the production cost of the end plate.
  • the end plate body 1 can be passivated after formation to slow down the corrosion rate.
  • the end plate body 1 is generally rectangular, and a reinforcing structure is provided on one side of the end plate body 1 .
  • the reinforcing structure includes a plurality of reinforcing grooves 2 whose depth direction is the Z direction.
  • a plurality of reinforcing grooves 2 are distributed in an array along the The structural strength of the end plate body 1.
  • the reinforcing structure in this embodiment can also adopt a honeycomb structure; in order to make the structure more stable, the reinforcing structure is integrally formed with the end plate body 1 .
  • at least one receiving groove 3 is provided along the Y direction in the middle part of the end plate body 1 on one side of the reinforcing structure.
  • the groove walls of the two opposite ends of the receiving groove 3 along the Y direction are provided with coaxial penetration holes.
  • the hole 4 can be inserted into the reinforcing rod; thus, the middle part of the end plate body 1 can be supported by inserting the reinforcing rod into the receiving groove 3 .
  • the through hole 4 on at least one side is a threaded hole
  • the reinforcing rod is a long screw
  • the threaded hole can fix the long screw.
  • the end plate body 1 is also provided with a first notch 17 , and the first notch 17 is provided at one end of the through hole 4 .
  • the first notch 17 can accommodate the end of the long screw to prevent the long screw from protruding from the end plate body 1; in addition, the first notch 17 can also leave an operating space for inserting and removing the reinforcing rod.
  • the reinforcing structures are adjacently arranged on both sides of the accommodating groove 3, thereby improving the structural strength of the end plate bodies 1 on both sides of the accommodating groove 3.
  • two accommodating grooves 3 are provided, and the two accommodating grooves 3 are arranged adjacent to each other.
  • the number of receiving grooves 3 can be set according to the specific length, thickness and other parameters of the end plate body 1 .
  • a plurality of U-shaped first reinforcing ribs 5 are provided in the receiving groove 3 at intervals along the Y direction.
  • the openings of the U-shaped first reinforcing ribs 5 are the same as the openings of the receiving groove 3.
  • the U-shaped first reinforcing ribs 5 5 is fixed on both side walls of the accommodating groove 3 and the end plate body 1, so that on the one hand, the reinforcing rod can be placed in the depression of the U-shaped first reinforcing rib 5, so that the reinforcing rod can be supported and stabilized; on the other hand, the first The reinforcing ribs 5 can also further increase the strength of the side walls of the accommodating groove 3 .
  • a plurality of second reinforcing ribs 6 intersecting with each other are provided in the reinforcing groove 2 adjacent to the receiving groove 3, and the ends of the second reinforcing ribs 6 are connected to the intersection points of the groove walls of the reinforcing groove 2. Adopting the above structure further strengthens the strength of the side walls of the accommodating groove 3 and the end plate body 1 on both sides of the accommodating groove 3 .
  • the end plate body 1 forms a stepped strength structure from the middle to both sides.
  • the relevant technology center generally provides holes or slots for hoisting on the end plate body 1.
  • the reinforced slot 2 is used.
  • hoisting is basic common sense in this field, and its principles will not be described in detail here.
  • at least two reinforcing grooves 2 are provided with third reinforcing ribs 7 in the Y direction.
  • the reinforcing grooves 2 provided with the third reinforcing ribs 7 are symmetrically arranged on both sides of the receiving groove 3. This can make the force on both sides even and symmetrical during hoisting, and avoid deflection during hoisting.
  • the receiving groove 3 for installing the third reinforcing rib 7 is generally selected as the receiving groove 3 on the side. Since there are many reinforcing grooves 2, multiple lifting points can be set, so that at least two reinforcements in the X direction can be installed.
  • a third reinforcing rib 7 is provided in the slot 2 to add a lifting point in the on the wall to increase the structural strength of the tank wall of the tank 2 during hoisting.
  • the end plate body 1 is provided with fixing structures at both ends in the X direction, and the opposite end plate bodies 1 are fixed through the fixing structures.
  • the fixing structure is two first fixing holes 8 provided on both sides of the end plate body 1 away from the receiving groove 3.
  • the first fixing holes 8 pass through the end plate body 1 up and down in the Y direction, so that the first fixing holes 8 can be connected at the first A connecting rod is inserted into the fixing hole 8, and the oppositely arranged end plate body 1 clamps the battery through the connecting rod and the external connector to form a battery module.
  • the end plate body 1 is also provided with a second notch 18.
  • the second notch 18 is provided at one end of the first fixing hole 8; when a long screw is used for the connecting rod, the second notch 18 can accommodate the long screw. end to prevent the long screw from protruding from the end plate body 1; in addition, the second notch 18 can also leave operating space for plugging and unplugging the connecting rod.
  • fracture grooves 9 are provided on both sides of the end plate body 1 in the X direction to split the first fixing hole 8 into two sections.
  • the fracture groove 9 is provided at the middle position of the first fixing hole 8 . Adopting this structure can facilitate the formation of the first fixing hole 8 and avoid using a long through hole, which may cause damage to the end plate body 1 when opening the first fixing hole 8 .
  • a plurality of second fixing holes 10 are provided on the side wall of the end plate body 1 away from the accommodating groove 3.
  • the opposite connectors can be plugged in through the second fixing holes 10.
  • the end plate body 1 is fixed from the side to enrich the fixing forms of the end plate body 1 and improve the compatibility.
  • strapping straps are used when fixing the opposite end plate bodies 1, and steel straps are generally used.
  • limiting components are also provided on both sides of the end plate body 1 away from the accommodating groove 3, and the limiting components are configured as limiting strapping straps.
  • the limiting assembly includes two limiting protrusions 11 or limiting grooves arranged on both sides of the end plate body 1 away from the receiving groove 3 and spaced apart along the Y direction.
  • the limiting protrusion 11 is used.
  • the number of limiting components is not specifically limited.
  • multiple groups of limiting components are provided, and are arranged on both sides of the fracture groove 9 to enable the end plate body 1 to be positioned at both ends of the Y direction. Make the binding more stable.
  • the opposite surfaces of the two limiting protrusions 11 are arranged to face each other with inclined guide surfaces, so that a limited space for the limiting strapping band is formed between the two limiting protrusions 11 .
  • the limiting component is a limiting groove
  • the limiting grooves can be provided on both sides of the fracture groove 9 .
  • the opposite groove walls along the Y direction in the limiting groove are inclined guide surfaces, so that the limiting groove forms a limited space for the limiting strapping band.
  • the limiting components located on both sides of the receiving groove 3 are symmetrical with respect to the receiving groove 3 .
  • the ends on both sides of the end plate body 1 away from the receiving groove 3 are rounded, so that the strap transitions smoothly at the corners.
  • the fixed end plate of the battery module also includes a fixed groove group.
  • the fixed groove group is arranged on the end plate body 1 and is located on either side of the end of the receiving groove 3.
  • the fixed groove group is opened on one side of the reinforced structure, wherein the fixed groove group is
  • This embodiment is provided with two fixed groove groups, which are symmetrically arranged on both sides of the receiving groove 3 .
  • the fixing slot group includes a first fixing slot 12, a second fixing slot 13 and/or a third fixing slot 14.
  • the first fixing slot 12 is configured to fix the CCS component
  • the second fixing slot 13 is configured to fix the insulating block
  • the third fixing slot 12 is configured to fix the insulating block.
  • the fixing groove 14 is set to fix the wire harness, and the specific selection of the setting can be selected according to the previous design.
  • the fixing slot group includes a first fixing slot 12 configured to fix the CCS component, which will not be explained for the related art; it also includes a third fixing slot set to fix the wire harness, which is spaced apart from the first fixing slot 12.
  • the fixing slot 14 and the third fixing slot 14 are provided with wire holes 15 on the slot wall.
  • the external wire harness can pass through the wire hole 15 and be concentrated in the third fixing slot 14 for binding, making the wire harness more tidy and improving the end plate body. 1 compatibility.
  • the fixing slot set also includes a second fixing slot 13.
  • the second fixing slot 13 is configured to fix the insulating block so that the battery module can isolate and insulate when it comes into contact with external components, thereby improving safety compatibility.
  • the second fixing groove 13 is disposed between the first fixing groove 12 and the third fixing groove 14 and is enclosed by the groove walls of the first fixing groove 12 and the third fixing groove 14 to reduce processing steps.
  • a limiting guide groove 16 is provided on the opposite inner wall of the second fixing groove 13 .
  • the outer walls of the opposite first fixing groove 12 and the third fixing groove 14 have limiting guide grooves 16, so that they can be plugged in with the protrusions provided on the insulating block, thereby facilitating installation.
  • the insulating block is firmly limited to prevent it from escaping from the second fixing groove 13 .
  • the above structure is a form of a fixed groove group.
  • the first fixed groove 12 , the second fixed groove 13 and the third fixed groove 14 can also be slotted separately according to the design and are independent of each other.
  • This embodiment also provides a battery module, which includes the above-mentioned battery module fixed end plates.
  • Two end plate bodies 1 are used to fix batteries including but not limited to lithium iron phosphate to form a battery module, so as to strengthen the end plate bodies 1
  • the support strength in the middle reduces the risk of damage to the end plate body 1 and improves the compatibility of the end plate body 1 .
  • Figure 5 is a schematic structural diagram of the battery module of the present application.
  • the battery module also includes a PC insulation sheet 19, a battery module aluminum row positive electrode 20, an end plate positioning block 21, an end plate insulating plate 22, a connecting row 23, and an insulating steel strip 24.
  • a plurality of battery cells 25 ( Figure 5 takes 12 battery cells as an example), studs 26, and silicone foam 27.

Abstract

电池模组固定端板及电池模组。该电池模组固定端板包括端板本体(1)，所述端板本体(1)的一侧设置有加强结构，所述加强结构包括多个深度方向为Z方向的加强槽(2)，多个所述加强槽(2)沿X方向和Y方向阵列分布；所述端板本体(1)的两端设有固定结构，所述端板本体(1)位于所述加强结构的一侧的中部沿Y方向设置至少一个容纳槽(3)，所述容纳槽(3)沿所述Y方向的两个相对端的槽壁设置有同轴贯穿孔(4)；所述加强结构设置在所述容纳槽(3)的两侧。电池模组包括上述电池模组固定端板，以能够增加端板本体中部的支撑力度，从而减小端板本体在中部产生形变甚至断裂的几率，降低端板本体损坏的风险。

Description

电池模组固定端板及电池模组
本申请要求在2023年4月24日提交中国专利局、申请号为202310447917.5的中国专利申请，以及在2023年4月24日提交中国专利局、申请号为202320944116.5的中国专利申请的优先权，以上申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及电池技术领域，例如涉及一种电池模组固定端板及电池模组。
 背景技术
动力电池即为工具提供动力来源的电源，多指为电动汽车、电动列车、电动自行车、高尔夫球车提供动力的蓄电池。电池模组是将多个电池叠放在一起，便于固定、便于运输的一种结构，一般情况下会将多个电池放在底板上然后通过侧部的端板进行固定。
而目前的端板结构中，其中端板主体厚度方向为蜂窝状结构，增强端板结构强度，同时减少端板重量；结构稳定性；端板主体厚度方向为蜂窝状结构，端板固定孔设置在端板主体的右侧和左侧。而使用目前类似端板时，由于在电池模组固定时均需要从端板固定孔在端板的左右两侧施加力度，而此时内部电池包在端板的从内侧向外侧抵顶端板，由此导致端板的中部容易产生形变甚至断裂，造成端板的损坏从而无法稳固电池。
 发明内容
本申请提供了一种电池模组固定端板，加强端板中部的支撑力度，降低端板损坏的风险。
第一方面，本申请实施例提供了一种电池模组固定端板，包括端板本体，所述端板本体的一侧设置有加强结构，所述加强结构包括多个深度方向为Z方向的加强槽，多个所述加强槽的沿X方向和Y方向阵列分布；所述端板本体的两端设有固定结构，所述端板本体位于所述加强结构的一侧的中部沿Y方向设置至少一个容纳槽，所述容纳槽沿所述Y方向的两个相对端的槽壁设置有同轴贯穿孔以能插接加强杆；所述加强结构相邻设置在所述容纳槽的两侧。
在一实施例中，所述容纳槽内设置有多个U形的第一加强筋，所述第一加强筋固定在所述容纳槽的两侧壁和所述端板本体以支撑所述加强杆。
在一实施例中，与所述容纳槽相邻的所述加强槽内设置有多个相互交叉设置的第二加强筋，所述第二加强筋的端部连接在所述加强槽的槽壁的交点。
在一实施例中，至少一侧的所述贯穿孔为螺纹孔，所述加强杆为长螺杆。
在一实施例中，在所述Y方向上至少两个所述加强槽设置有第三加强筋，设置有所述第三加强筋的所述加强槽对称设置于所述容纳槽的两侧，两个所述第三加强筋成T字型设置在所述加强槽内。
在一实施例中，在所述X方向上至少两个所述加强槽设置有所述第三加强筋。
在一实施例中，电池模组固定端板还设置有第一缺口，所述第一缺口设置在所述贯穿孔的其中一端的端部。
在一实施例中，所述固定结构为设置在远离所述容纳槽的所述端板本体的两侧的两个第一固定孔，所述第一固定孔沿所述Y方向上下贯通所述端板本体；所述端板本体的两侧设置有断裂槽，以将所述第一固定孔分裂成两段。
在一实施例中，电池模组固定端板还设置有第二缺口，所述第二缺口设置在所述第一固定孔的其中一端的端部。
在一实施例中，电池模组固定端板还设置有多个第二固定孔，所述第二固定孔设置在远离所述容纳槽的所述端板本体的侧壁上。
在一实施例中，所述端板本体的两侧还设置有限位组件，所述限位组件设置为限位捆扎带。
在一实施例中，所述限位组件包括设置在远离所述容纳槽的所述端板本体的两侧，并且沿所述Y方向间隔设置的两个限位凸起或限位槽。
在一实施例中，所述限位凸起或所述限位槽设置有倾斜导向面；
两个限位凸起的相对面设置为所述倾斜导向面相对，以使两个限位凸起之间形成限位所述捆扎带的限定空间；或，所述限位槽沿所述Y方向的相对的槽壁为所述倾斜导向面，以使所述限位槽形成限位所述捆扎带的限定空间。
在一实施例中，电池模组固定端板还包括固定槽组，所述固定槽组设置于所述容纳槽的端部的任一侧，且所述固定槽组在所述加强结构的一侧，所述固定槽组包括第一固定槽、第二固定槽和/或第三固定槽，所述第一固定槽设置为固定集成母排（Cells Contact System，CCS）组件，所述第二固定槽设置为固定绝缘块，所述第三固定槽设置为固定线束。
在一实施例中，所述第二固定槽的相对内壁设置有限位导向槽，以能够配合设置在绝缘块上的凸起进行插接。
在一实施例中，所述第三固定槽的槽壁上设置有过线孔，使外部的线束能够穿过所述过线孔以集中至所述第三固定槽进行束缚。
在一实施例中，所述端板本体的材料为铝。
第二方面，本申请实施例提供了一种电池模组，包括如上所述的电池模组固定端板，PC 绝缘片，电池模组铝排正极，端板定位块，连接排和电芯。
本申请的有益效果：
通过端板本体上设置容纳槽以及贯穿孔能够在将加强杆插接到容纳槽中，从而在通过固定结构固定相对设置的端板本体时，中部的加强杆能够从中部抵顶端板本体，从而在电池的相对侧增加了对端板本体中部的支撑力度，从而减小端板本体在中部产生形变甚至断裂的几率，降低端板本体损坏的风险。
 附图说明
图1是本申请电池模组固定端板的结构示意图；
图2是本申请电池模组固定端板显示容纳槽一侧的主视图；
图3是本申请电池模组固定端板显示第一固定槽一侧的侧视图；
图4是本申请电池模组固定端板显示第二固定孔一侧的侧视图；
图5是本申请电池模组的结构示意图。
图中：
1、端板本体；2、加强槽；3、容纳槽；4、贯穿孔；5、第一加强筋；6、第二加强筋；7、第三加强筋；8、第一固定孔；9、断裂槽；10、第二固定孔；11、限位凸起；12、第一固定槽；13、第二固定槽；14、第三固定槽；15、过线孔、16、限位导向槽；17、第一缺口；18、第二缺口；19、PC绝缘片；20、电池模组铝排正极；21、端板定位块；22、端板绝缘板；23、连接排；24、绝缘钢带；25、电芯；26、螺柱；27、硅胶泡棉。
 实施方式
在本申请的描述中，除非另有明确的规定和限定，术语“相连”、“连接”、“固定”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；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，可以是两个元件内部的连通或两个元件的相互作用关系。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。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本实施例的描述中，术语“上”、“下”、“左”、“右”等方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述和简化操作，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅仅用于在描述上加以区分，并没有特殊的含义。
相关技术中电池模组是将多个电池叠放在一起，然后用相对设置的端板进行夹持。而固定端板时，通常采用从端板的两端部利用连接件施力连接，从而拉力会从两端向两个端板内夹持的电池的方向拉扯端板，而电池则会向相反的方向抵顶端板从而容易导致端板的中部容易产生形变甚至发生断裂。
由此，如图1-4所示，本实施例提供一种电池模组固定端板，该电池模组固定端板包括端板本体1，端板本体1的两端设有固定结构，而端板本体1的一侧设置有加强结构，加强结构包括多个沿Z方向的加强槽2，多个加强槽2沿X方向和Y方向阵列分布。此处需要说明的是，如图1所示中X方向为端板本体1的长度方向，Y方向为端板本体1的宽度方向，Z方向为端板本体1的厚度方向。端板本体1位于加强结构的一侧的中部沿Y方向设置至少一个容纳槽3，容纳槽3沿Y方向的两个相对端的槽壁设置有同轴的贯穿孔4以能插接加强杆；加强结构相邻设置在容纳槽3的两侧。
通过端板本体1上设置容纳槽3以及贯穿孔4能够将加强杆插接到容纳槽3中，从而在通过固定结构固定相对设置的端板本体1时，从而在电池的相对侧增加了对端板本体1中部的支撑力度，加强中部的结构强度，从而减小端板本体1在中部产生形变甚至断裂的几率，降低端板本体1损坏的风险。
下面详细介绍本实施例，如图1-4所示，电池模组固定端板包括端板本体1，端板本体1的材料可以但不限制为铝材质，铝材质使端板的生产成本降低、易量产，端板本体1在形成后可以进行钝化处理，以延缓腐蚀速度。端板本体1一般为矩形，端板本体1的一侧设置有加强结构，示例性的可以设置在端板本体1固定电池时，背离电池的一侧。其中加强结构包括多个深度方向为Z方向的加强槽2。多个加强槽2沿X方向和Y方向阵列分布；从而在端板本体1的一侧形成横纵形式的水平阵列式加强槽2，加强槽2的侧壁作为横纵形式的加强筋能够加强端板本体1的结构强度。可以理解的是，本实施例中的加强结构也可以采用蜂窝状结构；为了使结构更加的稳定，加强结构与端板本体1一体成型。为了对端板本体1中部的加强，端板本体1位于加强结构的一侧的中部沿Y方向设置至少一个容纳槽3，容纳槽3沿Y方向的两个相对端的槽壁设置有同轴贯穿孔4以能插接加强杆；从而能够通过在容纳槽3内插接加强杆对端板本体1中部进行支撑。示例性的，至少一侧的贯穿孔4为螺纹孔，加强杆为长螺杆，螺纹孔可以固定长螺杆。示例性的，端板本体1还设置有第一缺口17，第一缺口17设置在贯穿孔4的其中一端的端部。当加强杆使用长螺杆时，第一缺口17能够容纳长螺杆的端部，避免长螺杆突出于端板本体1；此外第一缺口17还能够为插拔加强杆留下操作空间。而加强结构相邻设置在容纳槽3的两侧，从而使容纳槽3的两侧的端板本体1提升结构强度。本实施例中容纳槽3设置两个，两个容纳槽3相邻设置。其他实施例中，可以根据端板本体1的具体长度、厚度等参数设置容纳槽3的数量。
容纳槽3内设置有多个沿Y方向的间隔设置的U型的第一加强筋5，U型的第一加强筋5的开口与容纳槽3的开口相同，此外U型的第一加强筋5固定在容纳槽3的两侧壁和端板本体1，从而一方面能够使加强杆置于U型的第一加强筋5的凹陷处内，使加强杆得到支撑稳固；另一方面第一加强筋5也能为容纳槽3的侧壁起到进一步增加强度的作用。而与容纳槽3相邻的加强槽2内设置有多个相互交叉设置的第二加强筋6，第二加强筋6的端部连接在加强槽2的槽壁的交点。采用上述结构进一步加强了容纳槽3的侧壁以及容纳槽3两侧的端板本体1的强度。综上，通过从端板本体1从中部向两侧依次为第一加强筋5、加强杆的组合过渡到容纳槽3、第二加强筋6的组合再过渡到多个容纳槽3的组合，使端板本体1从中部到两侧形成阶梯式强度结构。从而在固定相对设置的端板本体1时能够对端板本体1的不同部位产生的应力提供不同的支撑强度。同时采用上述的槽型结构也能够在提供足够支撑强度的基础上减轻端板本体1的重量。
相关技术中心为了方便吊装，一般会在端板本体1上设置用于吊装的孔或槽，本实施例中使用的是加强槽2。需要说明的是，吊装是本领域的基本常识，此处不再赘述其原理。本实施例中为了加强吊装时的强度，在Y方向上至少两个加强槽2设置有第三加强筋7，设置有第三加强筋7的加强槽2对称设置于容纳槽3的两侧，从而能在吊装时使两侧受力均匀对称，避免在吊装时的偏斜。本实施例中设置第三加强筋7的容纳槽3一般选择最边侧的容纳槽3，由于加强槽2较多，可以设置多个吊装点，由此可以在X方向上的至少两个加强槽2中设置第三加强筋7，从而在X方向上增加吊装点，本实施例中第三加强筋7采用的是T字型，第三加强筋7的端部连接在加强槽2的槽壁上以增加吊装时加强槽2的槽壁的结构强度。
本实施例中端板本体1在X方向上的两端设有固定结构，通过固定结构固定相对设置的端板本体1。示例性的，固定结构为设置在远离容纳槽3的端板本体1的两侧的两个第一固定孔8，第一固定孔8沿Y方向上下贯通端板本体1，从而可以在第一固定孔8内插接连接杆，通过连接杆配合外置连接件将相对设置的端板本体1夹持电池形成电池模组。示例性的，端板本体1还设置有第二缺口18，第二缺口18设置在第一固定孔8的其中一端的端部；当连接杆使用长螺杆时，第二缺口18能够容纳长螺杆的端部，避免长螺杆突出于端板本体1；此外第二缺口18还能够为插拔连接杆留下操作空间。其中，在端板本体1的X方向上的两侧设置有断裂槽9，以将第一固定孔8分裂成两段，示例性的，断裂槽9设置在第一固定孔8的中间位置。采用此结构能够便于第一固定孔8的成型，也避免使用长通孔的形式，在开设第一固定孔8时对端板本体1造成损伤。而为了提升端板本体1在固定时的兼容性，在远离容纳槽3的端板本体1的侧壁设置多个第二固定孔10，可以通过第二固定孔10插接连接件将相对的端板本体1从侧方进行固定，以丰富端板本体1的固定形式提升兼容性。一般情况下，在相对的端板本体1固定时会用到捆扎带，一般采用钢带。为了避免捆扎带在捆扎时窜动，远离容纳槽3的端板本体1的两侧还设置有限位组件，限位组件设置为限位捆扎带。示例性的，限位组件包括设置在远离容纳槽3的端板本体1的两侧，并且沿Y方向间隔设置的两个限位凸起11或限位槽。本实施例中采用的是限位凸起11。需要说明的是，限位组件的数量不做具体限制，本实施例中；限位组件设置多组，并且设置于断裂槽9的两侧，以能够使端板本体1在Y方向的两端进行捆扎，使捆扎更加稳固。示例性的，两个限位凸起11的相对面设置为倾斜导向面相对，以使两个限位凸起11之间形成限位捆扎带的限定空间。而在其他实施例中，限位组件为限位槽，限位槽可以设置在断裂槽9的两侧。此外，限位槽中沿Y方向的相对的槽壁为倾斜导向面，以使限位槽形成限位捆扎带的限定空间。示例性的，为了使捆扎带笔直，位于容纳槽3两侧的限位组件相对于容纳槽3对称。示例性的，为了避免在困在时避免端板本体1的棱角磨损捆扎带，远离容纳槽3的端板本体1的两侧端部进行倒圆角，从而使捆扎带在转角处平滑过度。
电池模组固定端板还包括固定槽组，固定槽组设置在端板本体1上，并位于容纳槽3的端部的任一侧，且固定槽组开在加强结构的一侧，其中固定槽组具体的数量不做限制，可以根据具体的使用进行前期设计。本实施例设置了两个固定槽组，分别对称设置在容纳槽3的两侧。其中，固定槽组包括第一固定槽12、第二固定槽13和/或第三固定槽14，第一固定槽12设置为固定CCS组件，第二固定槽13设置为固定绝缘块，第三固定槽14设置为固定线束，设置的具体选选择可以根据前期设计选择。在本实施例中，固定槽组包括设置为固定CCS组件的第一固定槽12，CCS组件为相关技术不再进行解释；还包括与第一固定槽12间隔设置的设置为固定线束的第三固定槽14，第三固定槽14的槽壁上设置有过线孔15，外部的线束能够穿过过线孔15集中至第三固定槽14进行束缚，使线束更加的整齐，提升端板本体1的兼容性。固定槽组还包括第二固定槽13，第二固定槽13设置为固定绝缘块从而将使电池模组与外部的部件接触时起到隔离绝缘作用，提高安全兼容性。本实施例中第二固定槽13设置在第一固定槽12与第三固定槽14之间，由第一固定槽12与第三固定槽14的槽壁围合而成从而减少加工工序。而为了便于绝缘块的固定，第二固定槽13的相对内壁设置有限位导向槽16。在本实施例中，相对的第一固定槽12与第三固定槽14的外壁具有限位导向槽16，从而能够配合设置在绝缘块上的凸起进行插接，从而方便安装，此外也能使绝缘块限位稳固，避免脱离第二固定槽13。需要说明的是，上述结构为固定槽组的一种形式，其他实施例中第一固定槽12、第二固定槽13以及第三固定槽14也可根据设计进行单独开槽，互相独立。
本实施例还提供一种电池模组，包括上述的电池模组固定端板，用两个端板本体1固定包括但不限于磷酸铁锂等电池形成电池模组，以能够加强端板本体1中部的支撑力度，降低端板本体1损坏的风险，并且提升端板本体1的兼容性。
示例性的，如图5所示，图5是本申请电池模组的一种结构示意图。电池模组除包括两个端板本体1之外，还包括PC绝缘片19，电池模组铝排正极20，端板定位块21，端板绝缘板22，连接排23，绝缘钢带24，多个电芯25（图5以12个电芯为例），螺柱26，和硅胶泡棉27。

Claims (18)

  1. 电池模组固定端板，包括端板本体(1)，所述端板本体(1)的一侧设置有加强结构，所述加强结构包括多个深度方向为Z方向的加强槽(2)，多个所述加强槽(2)沿X方向和Y方向阵列分布；所述端板本体(1)的两端设有固定结构，
    所述端板本体(1)位于所述加强结构的一侧的中部沿Y方向设置至少一个容纳槽(3)，所述容纳槽(3)沿所述Y方向的两个相对端的槽壁设置有同轴贯穿孔(4)；所述加强结构设置在所述容纳槽(3)的两侧。
  2. 根据权利要求1所述的电池模组固定端板，其中，所述容纳槽(3)内设置有多个U形的第一加强筋(5)，所述第一加强筋(5)固定在所述容纳槽(3)的两侧壁和所述端板本体(1)。
  3. 根据权利要求1所述的电池模组固定端板，其中，与所述容纳槽(3)相邻的所述加强槽(2)内设置有多个相互交叉设置的第二加强筋(6)，所述第二加强筋(6)的端部连接在所述加强槽(2)的槽壁的交点。
  4. 根据权利要求1所述的电池模组固定端板，其中，至少一侧的所述贯穿孔(4)为螺纹孔。
  5. 根据权利要求1所述的电池模组固定端板，其中，在所述Y方向上至少两个所述加强槽(2)设置有第三加强筋(7)，设置有所述第三加强筋(7)的所述加强槽(2)对称设置于所述容纳槽(3)的两侧，两个所述第三加强筋(7)成T字型设置在所述加强槽(2)内。
  6. 根据权利要求5所述的电池模组固定端板，其中，在所述X方向上至少两个所述加强槽(2)设置有所述第三加强筋(7)。
  7. 根据权利要求5所述的电池模组固定端板，还设置有第一缺口（17），所述第一缺口（17）设置在所述贯穿孔(4)的其中一端的端部。
  8. 根据权利要求1所述的电池模组固定端板，其中，所述固定结构为设置在远离所述容纳槽(3)的所述端板本体(1)的两侧的两个第一固定孔(8)，所述第一固定孔(8)沿所述Y方向上下贯通所述端板本体(1)；所述端板本体(1)的两侧设置有断裂槽(9)，以将所述第一固定孔(8)分裂成两段。
  9. 根据权利要求8所述的电池模组固定端板，还设置有第二缺口(18)，所述第二缺口(18)设置在所述第一固定孔(8)的其中一端的端部。
  10. 根据权利要求1所述的电池模组固定端板，还设置有多个第二固定孔(10)，所述第二固定孔(10)设置在远离所述容纳槽(3)的所述端板本体(1)的侧壁上。
  11. 根据权利要求1所述的电池模组固定端板，其中，所述端板本体(1)的两侧还设置有限位组件，所述限位组件设置为限位捆扎带。
  12. 根据权利要求11所述的电池模组固定端板，其中，所述限位组件包括设置在远离所述容纳槽(3)的所述端板本体(1)的两侧，并且沿所述Y方向间隔设置的两个限位凸起(11)或限位槽。
  13. 根据权利要求12所述的电池模组固定端板，其中，所述限位凸起(11)或所述限位槽设置有倾斜导向面；
    两个限位凸起(11)的相对面设置为所述倾斜导向面相对，以使两个所述限位凸起(11)之间形成限位所述捆扎带的限定空间；或，所述限位槽沿所述Y方向的相对的槽壁为所述倾斜导向面，以使所述限位槽形成限位所述捆扎带的限定空间。
  14. 根据权利要求1所述的电池模组固定端板，还包括固定槽组，所述固定槽组设置于所述容纳槽(3)的端部的任一侧，且所述固定槽组在所述加强结构的一侧，所述固定槽组包括以下至少之一：第一固定槽(12)、第二固定槽(13)，和第三固定槽(14)，所述第一固定槽(12)设置为固定CCS组件，所述第二固定槽(13) 设置为固定绝缘块，所述第三固定槽(14) 设置为固定线束。
  15. 根据权利要求14所述的电池模组固定端板，其中，所述第二固定槽(13)的相对内壁设置有限位导向槽(16)，以能够配合设置在绝缘块上的凸起进行插接。
  16. 根据权利要求14所述的电池模组固定端板，其中，所述第三固定槽(14)的槽壁上设置有过线孔(15)，使外部的线束能够穿过所述过线孔(15)以集中至所述第三固定槽(14)进行束缚。
  17. 根据权利要求1-16任一所述的电池模组固定端板，其中，所述端板本体(1)的材料为铝。
  18. 电池模组，包括如上权利要求1-17任一所述的电池模组固定端板，PC绝缘片，电池模组铝排正极，端板定位块，连接排和电芯。
PCT/CN2023/105194 2023-04-24 2023-06-30 电池模组固定端板及电池模组 WO2024027430A1 (zh)

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