Reinforcing plate, battery pack assembly and electric equipment

Abstract

The utility model discloses a reinforcing plate, a battery pack assembly and electric equipment. The reinforcing plate comprises a main body part and a supporting connecting part. The main body part is suitable for being connected with a battery cell assembly; one end of the support connection portion is connected to an end portion of the main body portion in the first direction. And the other end of the support connecting part is suitable for being connected to a shell of the battery pack. The first direction is perpendicular to the thickness direction of the main body part. According to the utility model, the main body part is connected with the battery cell assembly, and the end part, far away from the main body part, of the supporting and connecting part is connected to the shell of the battery pack, so that the reinforcing plate, the battery cell assembly and the shell form a whole, and the battery cell assembly can move and change along with the reinforcing plate, namely, the battery cell assembly can move and change along with the reinforcing plate. And the reinforcing plate can transfer force between the battery cell assembly and the shell, so that the anti-vibration performance of the battery cell assembly under the working conditions of vibration and the like can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a reinforcing plate, a battery pack assembly and electrical equipment. Background Art

[0002] The cell assemblies in the battery pack in the related art are prone to shaking when the battery pack vibrates, colliding with the battery pack shell or other components in the battery pack, causing damage to the cells, and further causing serious risks such as leakage, arcing and short circuit. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the first aspect of the present invention provides a reinforcing plate, the reinforcing plate comprising:

[0005] A main body portion, the main body portion being suitable for connecting to a battery cell assembly; and

[0006] A support connection portion, one end of which is connected to an end of the main body along a first direction, and the other end of which is suitable for being connected to a shell of a battery pack, wherein the first direction is a direction perpendicular to the thickness direction of the main body.

[0007] According to the reinforcing plate of the first aspect of the utility model, in the installed state, the reinforcing plate, the battery cell assembly and the shell are formed into a whole by connecting the main body to the battery cell assembly and connecting the end of the supporting connection part away from the main body to the shell of the battery pack, so that the battery cell assembly can move and change with the reinforcing plate, that is, the reinforcing plate can transmit force between the battery cell assembly and the shell, thereby helping to improve the anti-vibration performance of the battery cell assembly when vibration and other working conditions occur.

[0008] Optionally, the supporting connection portion and the main body portion are arranged at an angle.

[0009] Optionally,

[0010] The included angle between the supporting connection part and the main body is denoted as α, and 0<α<π, the dimension of the supporting connection part along the first direction is denoted as L, and the dimension of the supporting connection part along the thickness direction of the main body is denoted as H, then the relationship among α, L and H satisfies

[0011]

[0012] Optionally, a flow channel suitable for flowing fluid is formed inside the main body, and the main body is suitable for cooling the battery core assembly.

[0013] Optionally, the reinforcing plate further comprises a heat conducting portion, the heat conducting portion is connected to the main body portion, and the heat conducting portion is suitable for being arranged between the main body portion and the battery cell assembly and closely attached to the battery cell assembly.

[0014] Optionally, the reinforcing plate includes two supporting connection parts arranged opposite to each other, the two supporting connection parts are respectively connected to two ends of the main body, and a first accommodating space is formed between the two supporting connection parts and the main body, and the first accommodating space is suitable for accommodating the battery cell assembly.

[0015] Optionally, the reinforcing plate comprises:

[0016] First Board; and

[0017] The second plate is a bent plate component, the bent plate component includes an intermediate plate body and two bent plate bodies, a flow channel groove is formed on the intermediate plate body and / or the first plate, the intermediate plate body and the first plate are stacked and sealed in the thickness direction to enclose and form the flow channel suitable for flowing fluid, the intermediate plate body and the first plate constitute the main body, the two bent plate bodies are connected to the two ends of the intermediate plate body along the first direction, and the bent plate body constitutes the supporting connection part.

[0018] Optionally, the end of the support connection portion away from the main body portion includes a first connection hole, and the first connection hole is suitable for being connected to the housing of the battery pack through a fastener; and / or

[0019] The main body portion includes a second connection hole, and the second connection hole is suitable for connecting to the housing of the battery pack through a fastener.

[0020] A second aspect of the present invention provides a battery pack assembly, which includes the above-mentioned reinforcing plate.

[0021] According to the battery pack assembly of the second aspect of the utility model, by applying the above-mentioned reinforcing plate, the vibration-proof performance of the battery pack assembly when vibration and other working conditions occur can be improved.

[0022] Optionally, the battery pack assembly further includes:

[0023] a housing, wherein the housing is formed with a chamber, the reinforcing plate is located in the chamber and connected to the housing, and a second accommodating space is enclosed between the housing and the reinforcing plate; and

[0024] A battery cell assembly is connected to the second accommodation space.

[0025] Optionally, poles are provided at two opposite ends of the battery cell assembly along a first direction, and the first direction is perpendicular to a height direction of the battery cell assembly;

[0026] The reinforcing plate includes two supporting connection parts which are arranged opposite to each other. The two supporting connection parts are respectively connected to two ends of the main body part, and the two supporting connection parts are located on two sides of the battery cell assembly along the first direction.

[0027] According to the battery pack assembly of the utility model, the ends of the battery cell assembly provided with the poles are protected by the two supporting connection parts of the reinforcing plate. When vibrating, the ends of the battery cell assembly provided with the poles are not easily deformed under the protection of the supporting connection parts. Especially when vibrating violently, the reinforcing plate can effectively prevent the ends of the battery cell assembly provided with the poles from deforming or even failing.

[0028] Optionally, the housing comprises:

[0029] Pallets; and

[0030] A cover body is connected to the tray to form a chamber between the cover body and the tray, and the cover body is connected to the reinforcing plate to enclose the reinforcing plate to form the second receiving space.

[0031] Optionally, a flow channel suitable for flowing fluid is formed inside the main body, and the main body is suitable for cooling the battery core assembly;

[0032] The battery pack assembly includes a heat conducting portion connected between the main body and the battery cell assembly along a height direction of the battery cell assembly to transfer heat between the main body and the battery cell assembly.

[0033] Optionally, the battery pack assembly further includes a heat insulating member, which is connected between the tray and the main body of the reinforcing plate along the height direction of the battery cell assembly to prevent heat from being transferred between the reinforcing plate and the tray.

[0034] Optionally, the heat insulating component is constructed as a component made of foam rubber.

[0035] Optionally, in the height direction of the battery cell assembly, a structural adhesive layer is arranged between the battery cell assembly and the cover body, and the structural adhesive layer is constructed as a structural layer formed after the structural adhesive coated between the battery cell assembly and the cover body is cured, and the structural adhesive layer is suitable for bonding the battery cell assembly and the cover body.

[0036] Optionally, the battery pack assembly also includes two stop members arranged opposite to each other, the stop members are fixedly connected to the cover body, and the two stop members are located on both sides of the battery cell assembly along a second direction to prevent the battery cell assembly from moving along the second direction, and the second direction is perpendicular to the height direction and the first direction.

[0037] A third aspect of the utility model provides an electrical device, which includes the above-mentioned battery pack assembly.

[0038] According to the electrical equipment of the third aspect of the utility model, the safety and service life of the electrical equipment can be improved by applying the above-mentioned battery pack assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0040] Figure 1 An exploded perspective view of a battery pack assembly according to a preferred embodiment of the present utility model;

[0041] Figure 2 for Figure 1 A top view of the battery pack assembly shown;

[0042] Figure 3 For along Figure 2 A cross-sectional view taken along line AA in FIG.

[0043] Figure 4 for Figure 3 an enlarged view of part I of FIG; and

[0044] Figure 5 for Figure 1 A perspective view of the reinforcement plate shown in FIG.

[0045] Description of reference numerals:

[0046] 100: battery pack assembly 100a: chamber

[0047] 100b: second storage space 110: reinforcement plate

[0048] 110a: flow channel 110b: first accommodation space

[0049] 111: Main body 112: Support connection part

[0050] 113: first plate 113a: flow channel groove

[0051] 114: Second plate 114a: Intermediate plate body

[0052] 114b: bent plate body 114c: flange

[0053] 114d: rivet 114e: second connection hole

[0054] 120: tray 130: cover

[0055] 131: Stopping member 140: Battery cell assembly

[0056] 150: Heat conduction part 160: Structural adhesive layer

[0057] 170: Insulation member D1: First direction

[0058] D2: Second direction D3: Height direction DETAILED DESCRIPTION

[0059] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0060] In order to fully understand the implementation of the present invention, a detailed structure will be presented in the following description. Obviously, the implementation of the present invention is not limited to the specific details familiar to those skilled in the art.

[0061] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention, and the singular forms "a", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, it indicates the presence of the features, integral bodies, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integral bodies, steps, operations, elements, components and / or combinations thereof.

[0062] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component". It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0063] The "parallel" / "vertical" and similar expressions used in the present invention include an absolute parallel / vertical relationship and a roughly parallel / vertical relationship (for example, a relationship that differs from absolute parallel / vertical by -5° to +5°), which can have the same effect.

[0064] The utility model provides a reinforcing plate 110, a battery pack assembly 100 and an electric device. The battery pack assembly 100 includes a reinforcing plate 110. The electric device includes the battery pack assembly 100. The electric device here may include but is not limited to vehicles, ships, energy storage cabinets, drones and electronic cigarettes. The vehicle may include but is not limited to a fuel vehicle, a hybrid vehicle, an electric two-wheeled vehicle and an electric multi-wheeled vehicle.

[0065] Below, we will refer to the attached Figures 1 to 5 The specific implementations of the reinforcing plate 110, the battery pack assembly 100 and the electrical equipment of the present invention are described in more detail. These drawings show representative implementations of the present invention and do not limit the present invention.

[0066] like Figure 1 as well as Figures 3 to 5 As shown, the reinforcing plate 110 according to the utility model may include a main body 111 and a supporting connection portion 112. The main body 111 is suitable for connecting to the battery cell assembly 140. The connection between the main body 111 and the battery cell assembly 140 may be a fixed connection or a close fit. One end of the supporting connection portion 112 is fixedly connected to the end of the main body 111 along the first direction D1. The other end of the supporting connection portion 112 is suitable for connecting to the shell of the battery pack. The first direction D1 is a direction perpendicular to the thickness direction of the main body 111. The shell here includes a cover body 130, a tray 120 and other structures connected to the cover body 130 or the tray 120.

[0067] According to the reinforcing plate 110 of the utility model, in the installed state, by connecting the main body 111 with the battery cell assembly 140 and connecting the end of the supporting connection part 112 away from the main body 111 to the shell of the battery pack, the reinforcing plate 110, the battery cell assembly 140 and the shell form a whole, so that the battery cell assembly 140 can move and change together with the reinforcing plate 110, that is, the reinforcing plate 110 can transmit force between the battery cell assembly 140 and the shell, thereby helping to improve the anti-vibration performance of the battery cell assembly 140 when vibration and other working conditions occur.

[0068] See also Figure 1 , Figures 3 to 5For example, the support connection portion 112 and the main body portion 111 are arranged to intersect. By arranging the support connection portion 112 and the main body portion 111 at an angle, when the reinforcing plate 110 is connected to the battery cell assembly 140 and the housing, external impact forces such as vibration along the height direction D3 of the housing can be transmitted to achieve the purpose of vibration prevention.

[0069] Furthermore, the angle between the support connection portion 112 and the main body portion 111 is denoted as α. And 0<α<π, that is, α is an obtuse angle. The dimension of the support connection portion 112 along the first direction D1 is denoted as L. The dimension of the support connection portion 112 along the thickness direction of the main body portion 111 is denoted as H. When the reinforcing plate 110 is installed to the battery pack assembly 100, the thickness direction is the height direction D3 of the battery pack assembly 100. Then the relationship between α, L and H satisfies

[0070]

[0071] When α, L and H satisfy the above formula, better force transmission performance can be achieved while ensuring the structural strength of the reinforcing plate 110 .

[0072] See also Figure 3 and Figure 4 For example, a flow channel 110a suitable for circulating fluid is formed inside the main body 111. The main body 111 is suitable for cooling the battery cell assembly 140. By providing the flow channel 110a inside the main body 111, the reinforcing plate 110 also has the function of a cold plate, and can cool the battery cell assembly 140 when connected to the battery cell assembly 140. The flow channel 110a here can be used to circulate the refrigerant fluid.

[0073] See also Figure 1 , Figures 3 to 5 In addition, the reinforcing plate 110 may further include a heat conducting portion 150. The heat conducting portion 150 is connected to the main body 111. The heat conducting portion 150 is suitable for being arranged between the main body 111 and the battery cell assembly 140 and being closely attached to the battery cell assembly 140. Here, the heat conducting portion 150 is connected to the main body 111, that is, the heat conducting portion 150 is integrated into the reinforcing plate 110. In this way, the heat exchange efficiency of the reinforcing plate 110 can be improved while reducing the number of parts, which helps to improve the assembly efficiency of the battery pack assembly 100.

[0074] Optionally, the heat conducting portion 150 may be made of a structure such as a heat conducting adhesive.

[0075] Continue reading Figure 1 , Figures 3 to 5For example, the reinforcing plate 110 may include two supporting connection parts 112 arranged opposite to each other. The two supporting connection parts 112 are respectively connected to the two ends of the main body 111. A first accommodating space 110b is formed between the two supporting connection parts 112 and the main body 111. The first accommodating space 110b is suitable for accommodating the battery cell assembly 140. By arranging two supporting connection parts 112 arranged opposite to each other on the reinforcing plate 110, and accommodating the battery cell assembly 140 in the first accommodating space 110b formed by the two supporting connection parts 112 and the main body 111, the reinforcing plate 110 can be used to protect the battery cell assembly 140, so as to improve the vibration resistance, impact resistance and other performances of the battery cell assembly 140.

[0076] See also Figure 1 , Figures 3 to 5 For example, the reinforcing plate 110 may include a first plate 113 and a second plate 114. The second plate 114 is a bent plate member. The bent plate member includes an intermediate plate body 114a and two bent plate bodies 114b. A flow channel groove is formed on the intermediate plate body 114a and / or the first plate 113. The intermediate plate body 114a and the first plate 113 are stacked and sealed in the thickness direction to enclose a flow channel suitable for circulating fluid. The intermediate plate body 114a and the first plate 113 constitute the main body 111. The above-mentioned flow channel 110a is formed between the intermediate plate body 114a and the first plate 113. The two bent plate bodies 114b are connected to both ends of the intermediate plate body 114a. The bent plate body 114b constitutes the support connection portion 112. The reinforcing plate 110 here is formed by stacking the first plate 113 and the second plate 114 in the thickness direction, which is convenient for manufacturing and also helps to improve processing accuracy.

[0077] See also Figure 1 , Figures 3 to 5 Further, in the installation state where the reinforcing plate 110 is installed to the battery pack assembly 100, the intermediate plate body 114a of the reinforcing plate 110 is closer to the battery cell assembly 140 than the first plate 113. The intermediate plate body 114a is adapted to be connected to the battery cell assembly 140. A flow channel groove 113a is formed on the surface of the first plate 113 facing the second plate 114. The second plate 114 connected to the first plate 113 closes the notch of the flow channel groove 113a to form the above-mentioned flow channel 110a.

[0078] See also Figure 1 , Figures 3 to 5 For example, the end of the support connection portion 112 away from the main body portion 111 may include a first connection hole (not marked). The first connection hole is suitable for connecting to the housing of the battery pack through a fastener. The main body portion 111 may include a second connection hole 114e. The second connection hole 114e is suitable for connecting to the housing of the battery pack through a fastener.

[0079] exist Figure 5In the example shown, a flange 114c is formed at the end of the supporting connecting portion 112. A first connecting hole is provided at the flange 114c. A rivet 114d is installed in the first connecting hole. The flange 114c here can be arranged parallel to the main body 111.

[0080] According to the reinforcing plate 110 of the present invention, when applied to the battery pack assembly 100, it is possible to achieve the effects of heat transfer, limiting the battery cell assembly 140, connecting the cover body 130, and enhancing the strength of the package.

[0081] See also Figures 1 to 5 The present invention further provides a battery pack assembly 100. The battery pack assembly 100 may include the above-mentioned reinforcing plate 110. According to the battery pack assembly 100 of the present invention, by applying the above-mentioned reinforcing plate 110, the anti-vibration performance of the battery pack assembly 100 when vibration or the like occurs can be improved.

[0082] See also Figure 1 , Figures 3 to 5 In addition, the battery pack assembly 100 may further include a shell and a battery cell assembly 140. The shell is formed with a chamber 100a. The reinforcing plate 110 is located in the chamber 100a and is connected to the shell. A second accommodating space 100b is enclosed between the shell and the reinforcing plate 110. The battery cell assembly 140 is connected to the second accommodating space 100b. By placing the battery cell assembly 140 in the second accommodating space 100b enclosed by the shell and the reinforcing plate 110, the battery cell assembly 140 can be protected by the shell and the reinforcing plate 110, and force can be transmitted between the battery cell assembly 140 and the shell through the reinforcing plate 110 to improve the vibration resistance of the battery cell assembly 140.

[0083] The strength of the ends of the battery cell assemblies provided with poles in the related art is relatively weak, and there is a risk of deformation and failure of the shells at both ends of the battery cell assemblies. Since the ends of the battery cell assemblies provided with poles lack fixing and protective structures, the ends of the battery cell assemblies provided with poles are severely deformed during vibration. Especially during severe vibration, there is a risk of deformation and failure of the shells at the ends of the battery cell assemblies provided with poles.

[0084] Continue reading Figure 1 , Figures 3 to 5For example, poles are provided at opposite ends of the battery cell assembly 140 along the first direction D1. The first direction D1 is perpendicular to the height direction D3 of the battery cell assembly 140. The reinforcing plate 110 may include two supporting connection parts 112 arranged opposite to each other. The two supporting connection parts 112 are respectively connected to the two ends of the main body 111. And the two supporting connection parts 112 are located on both sides of the battery cell assembly 140 along the first direction D1. By arranging the supporting connection parts 112 on the outside of the poles of the battery cell assembly 140, it is helpful to improve the stress of the two ends of the battery cell assembly 140 along the first direction D1 when the battery pack assembly 100 vibrates, and avoid the two ends of the battery cell assembly 140 along the first direction D1. The two supporting connection parts 112 of the reinforcing plate 110 are used to protect the ends of the battery cell assembly 140 provided with poles when the battery pack assembly 100 vibrates, thereby avoiding serious deformation of the two ends of the battery cell assembly 140 along the first direction D1 during vibration, thereby preventing the risk of failure of the two ends of the battery cell assembly 140 along the first direction D1. In other words, according to the battery pack assembly of the utility model, the ends of the battery cell assembly 140 provided with poles are protected by the two supporting connection parts 112 of the reinforcing plate 110. During vibration, the end of the battery cell assembly 140 with the pole is not easily deformed under the protection of the support connection part 112. Especially during severe vibration, the reinforcing plate can effectively prevent the end of the battery cell assembly 140 with the pole from failing due to shell deformation.

[0085] See also Figures 1 to 5 , further, the housing may include a tray 120 and a cover 130. The cover 130 is connected to the tray 120 to form a chamber 100a between the cover 130 and the tray 120. The cover 130 is connected to the reinforcing plate 110 to enclose the reinforcing plate 110 to form a second accommodating space 100b. By connecting the reinforcing plate 110 to the cover 130, the external impact force can be effectively transmitted between the battery cell assembly 140 and the cover 130 to weaken the effect of the external impact force on the battery cell assembly 140, thereby achieving the purpose of protecting the battery cell assembly 140.

[0086] In order to achieve more effective force transmission and vibration prevention effects, the connection between the reinforcing plate 110 and the battery cell assembly 140 is located at a portion of the battery cell assembly 140 that is away from the cover 130 along the height direction D3.

[0087] See also Figure 1 , Figures 3 to 5 For example, a flow channel 110a suitable for circulating fluid is formed inside the main body 111. The main body 111 is suitable for cooling the battery cell assembly 140. The battery pack assembly 100 may include a heat conducting portion 150. The heat conducting portion 150 is connected between the main body 111 and the battery cell assembly 140 along the height direction D3 of the battery cell assembly 140 to transfer heat between the main body 111 and the battery cell assembly 140. The heat conducting portion 150 here is used to improve the heat transfer efficiency between the main body 111 and the battery cell assembly 140.

[0088] Optionally, the heat conducting part 150 may be pre-integrated with the reinforcing plate 110 , and may also be pre-integrated with the battery cell assembly 140 .

[0089] See also Figure 1 , Figure 3 and Figure 4 In addition, the battery pack assembly 100 may further include a heat insulating member 170. The heat insulating member 170 is connected between the tray 120 and the main body 111 of the reinforcing plate 110 along the height direction D3 of the battery cell assembly 140 to prevent heat transfer between the reinforcing plate 110 and the tray 120. By providing the heat insulating member 170, the heat transfer path between the tray 120 and the reinforcing plate 110 can be cut off, thereby ensuring that the battery cell assembly 140 is maximally heat exchanged with the heat exchange medium in the reinforcing plate 110, thereby effectively improving the cooling effect of the battery pack assembly 100.

[0090] For example, the heat insulating member 170 is constructed as a member made of foam. By using foam to make the heat insulating member 170, the vibration-proof performance between the reinforcing plate 110 and the tray 120 can be improved while achieving the purpose of heat insulation to buffer vibration or external impact force.

[0091] Optionally, the heat insulating member 170 may be connected to the tray 120 and the reinforcing plate 110 by bonding or the like.

[0092] By adopting the above technical means, when the foam adhesive has a weak bearing capacity or is insufficiently filled, even if the external force cannot be fully transmitted to the tray 120, the reinforcing plate 110 can absorb part of the external force and transmit it to the cover 130. At this time, since the reinforcing plate 110 is fixed relative to the cover 130, the risk of increased local stress in the shell due to factors such as failure of foam adhesive bonding or insufficient filling can be avoided.

[0093] See also Figure 1 , Figures 3 to 5 For example, in the height direction D3 of the battery cell assembly 140, a structural adhesive layer 160 is provided between the battery cell assembly 140 and the cover body 130. The structural adhesive layer 160 is configured as a structural layer formed by curing the structural adhesive coated between the battery cell assembly 140 and the cover body 130. The structural adhesive layer 160 is suitable for bonding the battery cell assembly 140 and the cover body 130. By providing the structural adhesive layer 160, it is used to fix the battery cell assembly 140 to the cover body 130, enhance the strength of the connection structure between the battery cell assembly 140 and the cover body 130, and enable the battery cell assembly 140 to move together with the cover body 130 when vibration occurs. When used in combination with the reinforcing plate 110, the vibration-proof performance of the battery cell assembly 140 can be effectively improved.

[0094] See also Figure 1In addition, the battery pack assembly 100 may further include two stop members 131 arranged opposite to each other. The stop members 131 are fixedly connected to the cover body 130. And the two stop members 131 are located on both sides of the battery cell assembly 140 along the second direction D2 to prevent the battery cell assembly 140 from moving along the second direction D2, and the second direction D2 is perpendicular to the height direction D3 and the first direction D1. By providing the stop members 131, when the battery pack assembly 100 is subjected to an impact force along the second direction D2, the battery cell assembly 140 can be prevented from moving relative to the shell, but the battery cell assembly 140 can be ensured to move together with the shell under the impact force, so that the battery cell assembly 140 can be prevented from being deformed or damaged due to bumps or the like.

[0095] Continue reading Figure 1 For example, the stopping member 131 may be fastened to the second connection hole 114 e of the reinforcing plate 110 by means of fasteners such as rivets and screws.

[0096] In the illustrated example, the stopping member 131 may be constructed as a plate, a frame, or a combination of the two.

[0097] See also Figure 1 , Figures 3 to 5 For example, the cover 130 can be fastened to the first connection hole of the reinforcing plate 110 by means of fasteners such as rivets and screws. Structural adhesive can also be applied between the cover 130 and the reinforcing plate 110 to improve the structural strength of the connection. After the support connection portion 112 of the reinforcing plate 110 is bonded and riveted to the cover 130, the reinforcing plate 110 and the tray 120 can share the external force, thereby increasing the overall strength of the battery pack assembly 100.

[0098] See also Figure 1 , Figure 3 as well as Figure 4 Optionally, the battery cell assembly 140 may include a battery cell monomer. The battery cell monomer may be a blade battery cell.

[0099] According to the battery pack assembly 100 of the utility model, the support connection part 112 of the reinforcing plate 110 is connected to the cover body 130, which solves the problem of excessive local stress caused by the failure of bonding between the liquid cooling plate and the tray 120 in the related art. When the cover body 130 and the tray 120 are made of plate parts through a stamping process, the support connection part 112 of the reinforcing plate 110 is glued and riveted to the cover body 130, so that the stress from the battery cell assembly 140 can be shared by the reinforcing plate 110 and the tray 120, thereby improving the overall strength of the battery pack assembly 100 compared with the related art. The reinforcing plate 110 of the utility model, by adding a bent edge as the support connection part 112, can improve the stress of the two ends of the battery cell assembly 140 when the battery pack assembly 100 vibrates, and avoid the two ends of the battery cell assembly 140 from being severely deformed during vibration, thereby preventing the risk of failure of the two ends of the battery cell assembly 140.

[0100] The utility model further provides an electric device, which may include the battery pack assembly 100 described above.

[0101] According to the electric equipment of the present invention, by applying the above-mentioned battery pack assembly 100, the safety and service life of the electric equipment can be improved.

[0102] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0103] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. A reinforcing plate, characterized in that: The reinforcing plate comprises: A main body portion, the main body portion being suitable for connecting to a battery cell assembly; and A support connection portion, one end of which is connected to an end of the main body along a first direction, and the other end of which is suitable for being connected to a shell of a battery pack, wherein the first direction is a direction perpendicular to the thickness direction of the main body.

2. The reinforcing plate according to claim 1, characterized in that: The supporting connection portion and the main body portion are arranged at an angle.

3. The reinforcing plate according to claim 2, characterized in that: The included angle between the supporting connection part and the main body is denoted as α, and 0<α<π, the dimension of the supporting connection part along the first direction is denoted as L, and the dimension of the supporting connection part along the thickness direction of the main body is denoted as H, then the relationship among α, L and H satisfies 4. The reinforcing plate according to claim 1, characterized in that: A flow channel suitable for flowing fluid is formed inside the main body, and the main body is suitable for cooling the battery core assembly.

5. The reinforcing plate according to claim 4, characterized in that: The reinforcing plate further comprises a heat conducting portion, the heat conducting portion is connected to the main body portion, and the heat conducting portion is suitable for being arranged between the main body portion and the battery core assembly and closely attached to the battery core assembly.

6. The reinforcing plate according to claim 4, characterized in that: The reinforcing plate includes two supporting connection parts arranged opposite to each other, the two supporting connection parts are respectively connected to two ends of the main body, and a first accommodating space is formed between the two supporting connection parts and the main body, and the first accommodating space is suitable for accommodating the battery cell assembly.

7. The reinforcing plate according to claim 6, characterized in that: The reinforcing plate comprises: First Board; and The second plate is a bent plate component, the bent plate component includes an intermediate plate body and two bent plate bodies, a flow channel groove is formed on the intermediate plate body and / or the first plate, the intermediate plate body and the first plate are stacked and sealed in the thickness direction to enclose and form the flow channel suitable for flowing fluid, the intermediate plate body and the first plate constitute the main body, the two bent plate bodies are connected to the two ends of the intermediate plate body along the first direction, and the bent plate body constitutes the supporting connection part.

8. The reinforcing plate according to any one of claims 1 to 7, characterized in that: The end of the support connection portion away from the main body portion includes a first connection hole, and the first connection hole is suitable for connecting to the housing of the battery pack through a fastener; and / or The main body portion includes a second connection hole, and the second connection hole is suitable for connecting to the housing of the battery pack through a fastener.

9. A battery pack assembly, characterized in that: The battery pack assembly comprises a reinforcement plate according to any one of claims 1 to 8.

10. The battery pack assembly according to claim 9, characterized in that: The battery pack assembly further includes: a housing, wherein the housing is formed with a chamber, the reinforcing plate is located in the chamber and connected to the housing, and a second accommodating space is enclosed between the housing and the reinforcing plate; and A battery cell assembly is connected to the second accommodation space.

11. The battery pack assembly according to claim 10, characterized in that: The battery cell assembly is provided with poles at two opposite ends along a first direction, wherein the first direction is perpendicular to a height direction of the battery cell assembly; The reinforcing plate includes two supporting connection parts which are arranged opposite to each other. The two supporting connection parts are respectively connected to two ends of the main body part, and the two supporting connection parts are located on two sides of the battery cell assembly along the first direction.

12. The battery pack assembly according to claim 11, characterized in that: The housing comprises: Pallets; and A cover body is connected to the tray to form a chamber between the cover body and the tray, and the cover body is connected to the reinforcing plate to enclose the reinforcing plate to form the second receiving space.

13. The battery pack assembly according to claim 10, characterized in that: A flow channel suitable for flowing fluid is formed inside the main body, and the main body is suitable for cooling the battery core assembly; The battery pack assembly includes a heat conducting portion connected between the main body and the battery cell assembly along a height direction of the battery cell assembly to transfer heat between the main body and the battery cell assembly.

14. The battery pack assembly according to claim 12, characterized in that: The battery pack assembly further includes a heat insulating member connected between the tray and the main body of the reinforcing plate along a height direction of the battery cell assembly to prevent heat transfer between the reinforcing plate and the tray.

15. The battery pack assembly according to claim 14, characterized in that: The heat insulating component is constructed as a component made of foam rubber.

16. The battery pack assembly according to claim 12, characterized in that: In the height direction of the battery cell assembly, a structural adhesive layer is arranged between the battery cell assembly and the cover body, and the structural adhesive layer is constructed as a structural layer formed after the structural adhesive coated between the battery cell assembly and the cover body is cured, and the structural adhesive layer is suitable for bonding the battery cell assembly and the cover body.

17. The battery pack assembly according to claim 12, characterized in that: The battery pack assembly also includes two stop members arranged opposite to each other, the stop members are fixedly connected to the cover body, and the two stop members are located on both sides of the battery cell assembly along a second direction to prevent the battery cell assembly from moving along the second direction, and the second direction is perpendicular to the height direction and the first direction.

18. An electrical equipment, characterized in that: The electrical equipment comprises a battery pack assembly according to any one of claims 9 to 17.

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