Battery cluster and electric equipment

Abstract

The utility model relates to a battery cluster and electric equipment, and relates to the technical field of batteries. The battery cluster includes at least two battery packs and at least two reinforcing supports. And the at least two battery packs are sequentially stacked and communicated with each other. The at least two reinforcing supporting pieces are correspondingly arranged on the side walls of the at least two battery packs and are fixedly connected with the battery packs, and any two adjacent reinforcing supporting pieces are propped against and supported in the stacking direction of the battery packs. And when the battery packs are stacked, the strength of the reinforcing support pieces is sequentially increased from top to bottom. According to the battery cluster provided by the invention, the overall energy density of the battery cluster can be improved while the supporting strength requirement of the battery cluster is met, and meanwhile, the cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular, to a battery cluster and a power utilization device. BACKGROUND

[0002] In the prior art, in order to ensure the output power in actual application, a battery cluster is usually formed by assembling multiple layers of battery packs using a cluster frame, then connecting the battery packs through high-voltage and low-voltage wire harnesses to complete the construction of the whole battery cluster system. In some improved designs, the cluster frame is removed, and the battery packs are directly stacked and connected to form a battery cluster.

[0003] However, in the above setting mode, when the cluster frame is used, in order to ensure the strength of the cluster frame, the cluster frame as a whole needs to occupy a large space in the battery cluster, thereby affecting the energy density of the whole battery cluster.

[0004] When the cluster frame is removed, the lower battery packs need to bear the weight of the upper battery packs, and the weight borne by the lower battery packs increases as the height increases. In order to ensure the strength of the battery packs, the strength of the battery packs needs to be strengthened according to the strength of the lowermost battery pack. The strengthened battery packs will cause strength redundancy when applied to the upper layer, which not only affects the energy density of the whole battery cluster, but also causes material waste, thereby increasing the production cost.

[0005] Therefore, it is urgent to provide a battery cluster that can meet the requirements of improving the energy density of the whole battery cluster while meeting the strength requirements of the battery cluster, and reducing the cost. SUMMARY

[0006] The purpose of the present application is to provide a battery cluster and a power utilization device, which can meet the requirements of improving the energy density of the whole battery cluster while meeting the strength requirements of the battery cluster, and reducing the cost.

[0007] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a battery cluster, which comprises at least two battery packs and at least two reinforcing support members. The at least two battery packs are stacked in sequence and are in communication with each other. The at least two reinforcing support members are arranged corresponding to the side walls of the at least two battery packs and are fixedly connected with the battery packs. In the stacking direction of the battery packs, any two adjacent reinforcing support members abut and support each other. The strength of the reinforcing support members increases in sequence from top to bottom when the battery packs are stacked.

[0008] Based on the above embodiments of the present application, when the battery cluster is set in groups, the cluster frame is cancelled, and a plurality of battery packs are stacked and connected in sequence, thereby eliminating the space occupation of the cluster frame to the whole battery cluster and improving the energy density of the battery cluster. Meanwhile, when the battery packs are stacked, the reinforcing supports arranged on the side walls of the battery packs abut and support in sequence, thereby sharing the pressure received by the battery packs, so that the force-bearing parts such as the box of the battery pack can be arranged to be relatively light and thin, achieving lightweight design, thereby reducing the amount of materials and space occupation, and improving the energy density of the whole battery cluster. Further, the strength of the separately arranged reinforcing supports increases in sequence from top to bottom, and in the specific production and assembly process, the strength of the reinforcing supports can be adjusted by adjusting the structure of the reinforcing supports themselves, so as to correspond to the increasing pressure received by the battery packs from top to bottom when stacked, thereby adjusting the structure of the reinforcing supports according to the pressure received by the battery packs, so that the reinforcing supports can meet the corresponding strength requirements while reducing strength redundancy, reducing material waste and reducing the weight of the whole battery cluster, thereby reducing costs while improving the energy density of the whole battery cluster.

[0009] In some embodiments, the reinforcing support includes at least one support column, the support column is fixedly arranged on the side wall of the battery pack, and the number of support columns increases in sequence from top to bottom when the battery packs are stacked.

[0010] Based on the above embodiments of the present application, a specific structure of the reinforcing support is provided, that is, the reinforcing support is composed of a plurality of separately arranged support columns, and the strength of the reinforcing support is adjusted by adjusting the number of support columns.

[0011] In some embodiments, the support column has a first support surface, a second support surface and a third support surface, the first support surface is formed on the side of the support column and connected to the side wall of the battery pack. The second support surface and the third support surface are respectively formed on the two ends of the support column, and in the two adjacent support columns along the stacking direction of the battery pack, the second support surface of the lower support column is arranged opposite to the third support surface of the upper support column.

[0012] Based on the above embodiments of the present application, when the reinforcing support is arranged as a plurality of support columns, the first support surface is arranged to realize the surface contact between the support column and the side wall of the battery pack, thereby increasing the contact area between them and reducing the stress per unit area of the side wall of the battery pack, thereby reducing the strength requirement of the side wall of the battery pack and achieving lightweight design of the side wall of the battery pack. Meanwhile, the arrangement of the second support surface and the third support surface and the opposite arrangement of the two in the two adjacent support columns when the battery packs are stacked make the support between the two adjacent support columns more stable.

[0013] In some embodiments, a cavity structure is formed on the side of the support column away from the first support surface, and a reinforcing rib is arranged in the cavity structure.

[0014] Based on the above-mentioned embodiments of the present application, by forming the cavity structure, the material usage and weight of the support column are reduced, and the arrangement of the reinforcing ribs can ensure that the support column has sufficient strength while the cavity structure is formed, and the overall support strength of the reinforcing support is ensured when the battery cluster is arranged in groups.

[0015] In some embodiments, at least four support columns are arranged on each side of the battery pack, and the four support columns are symmetrically arranged on both sides of the battery pack along a first direction, and at least two support columns on the same side are arranged equidistantly along a second direction. The first direction is perpendicular to the stacking direction of the battery pack, and the second direction is perpendicular to the stacking direction of the battery pack and perpendicular to the first direction.

[0016] Based on the above-mentioned embodiments of the present application, by arranging support columns on both sides of the battery pack, the support of the support columns to the battery pack and the overall battery cluster is more balanced, which can to some extent avoid the battery cluster from deviating to one side. By arranging at least two support columns on the same side of the battery pack and equidistantly arranging the two support columns, the support stability of the overall battery cluster is further enhanced.

[0017] In some embodiments, the reinforcing support is arranged in a frame structure, and the reinforcing support comprises a top rod and a bottom rod, two end rods, and at least one reinforcing rod. The top rod and the bottom rod are arranged in parallel, the end rod is connected between the end of the top rod and the end of the bottom rod, the end rod cooperates with the top rod and the bottom rod to form a rectangular frame structure, and the arrangement direction of the end rod is consistent with the stacking direction of the battery pack. The at least one reinforcing rod is connected between the top rod and the bottom rod, and the number of reinforcing rods increases sequentially from top to bottom when the battery pack is stacked.

[0018] Based on the above-mentioned embodiments of the present application, another specific structure of the reinforcing support is provided, and by arranging the top rod and the bottom rod, the contact area of the abutting support between the two adjacent reinforcing supports is larger, so that the support between the two reinforcing supports is more stable. At the same time, by adjusting the number of reinforcing rods to adjust the strength of the reinforcing support, the different pressure sizes of the battery pack at different positions when stacked are corresponded.

[0019] In some embodiments, at least one of the upper and lower ends of the side wall of the battery pack is provided with a flange, and the flange is located between the two adjacent reinforcing supports along the stacking direction of the battery pack.

[0020] Based on the above-mentioned embodiments of the present application, by arranging the flange to strengthen the connection between the battery pack and the reinforcing support, the connection between the battery pack and the reinforcing support is more stable.

[0021] In some embodiments, any two adjacent reinforcing supports along the stacking direction of the battery pack are connected by a bolt, and the bolt passes through the flange.

[0022] Based on the above-mentioned embodiments of the present application, the bolt connection is not only convenient and fast, but also has high connection strength, and can improve the connection strength between the reinforcing support and the flange.

[0023] In some embodiments, the battery cluster further comprises a positioning module, the positioning module comprising a positioning hole and a positioning pin. In any two adjacent battery packs in the stacking direction, one of the battery packs is provided with the positioning hole, and the other battery pack is provided with the positioning pin, which can be inserted into the positioning hole.

[0024] Based on the above-mentioned embodiments of the present application, the positioning module can be provided to make the alignment between the battery packs more accurate when the battery packs are stacked, so that the two adjacent reinforcing supports can better abut and support each other, thereby improving the stability of the support.

[0025] According to a second aspect of the present application, a power consuming device is provided, which comprises a device main body and the above-mentioned battery cluster. The device main body is provided with a receiving cavity, and the battery cluster is arranged in the receiving cavity.

[0026] Based on the above-mentioned embodiments of the present application, the power consuming device provided by the present application comprises the above-mentioned battery cluster, so it also has the above-mentioned beneficial effects. To avoid repetition, they will not be described here.

[0027] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0029] Figure 1 is a structural schematic diagram of a battery cluster provided by an embodiment of the present application.

[0030] Figure 2 is a structural schematic diagram of a single battery pack and a reinforcing support in a battery cluster provided by an embodiment of the present application.

[0031] Figure 3 is a structural schematic diagram of a reinforcing support in a battery cluster provided by an embodiment of the present application.

[0032] Figure 4 is a structural schematic diagram of a battery cluster provided by another embodiment of the present application.

[0033] Figure 5 is a structural schematic diagram of a reinforcing support in a battery cluster provided by another embodiment of the present application. Figure 1 .

[0034] Figure 6 is a structural schematic of a battery cluster reinforcing support provided by another embodiment of the present application Figure 2 .

[0035] Figure 7 is an enlarged schematic view of the A area in Figure 1

[0036] Figure 8 is an enlarged schematic view of the B area in Figure 1

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038] 1, battery pack; 2, reinforcing support; 21, support column; 211, first support surface; 212, second support surface; 213, third support surface; 214, reinforcing rib; 22, top rod; 23, bottom rod; 24, end rod; 25, reinforcing rod; 3, flange; 4, positioning module; 41, positioning hole; 42, positioning pin. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the present application clearer, the following further describes the present application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the following further describes the present application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of the present application.

[0042] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0043] In the present application, the orientation words such as "first direction, second direction" used without the opposite description are based on Figure 1 , Figure 2 and Figure 4 ​​The XYZ coordinate system defined in the battery pack is defined as follows: the Y direction refers to the first direction, the X direction refers to the second direction, and the Z direction refers to the battery pack stacking direction.

[0044] In the description of the present application, it should be noted that, unless otherwise stated, the terms "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] In the prior art, in order to ensure the output power in actual application, a battery cluster is usually formed by assembling multiple battery packs, i.e. using a cluster frame to assemble multiple layers of battery packs, and then connecting the battery packs through high and low voltage wire harnesses to complete the construction of the whole cluster battery system. In some improved designs, the cluster frame is also removed, and the battery cluster is formed by directly stacking and connecting the battery packs.

[0047] However, in the above setting mode, when the cluster frame is used, in order to ensure the strength of the cluster frame, the cluster frame as a whole needs to occupy a large space in the battery cluster, thereby affecting the energy density of the whole battery cluster.

[0048] When the cluster frame is removed, the lower battery packs need to bear the weight of the upper battery packs, and the lower the battery pack, the more weight it needs to bear. In order to ensure the strength of the battery pack, the strength of the battery pack needs to be strengthened according to the lowest layer of battery pack. The strengthened battery pack when applied to the upper layer will cause strength redundancy, not only affecting the energy density of the whole battery cluster, but also causing material waste, thereby increasing the production cost.

[0049] In order to solve the above problems in the prior art, according to the first aspect of the present application, a battery cluster is provided, which refers to Figure 1 and Figure 2As shown in the middle, the battery cluster includes at least two battery packs 1 and at least two reinforcing supports 2. The at least two battery packs 1 are sequentially stacked and communicated with each other. The at least two reinforcing supports 2 are correspondingly arranged on the side walls of the at least two battery packs 1 and fixedly connected with the battery packs 1, and any two adjacent reinforcing supports 2 in the stacking direction of the battery packs 1 abut and support each other. Among them, the strength of the reinforcing support 2 increases sequentially from top to bottom when the battery packs 1 are stacked.

[0050] Based on the above embodiments of the present application, when the battery cluster is arranged in groups, the cluster frame is cancelled, and a plurality of battery packs 1 are sequentially stacked and connected, thereby eliminating the space occupation of the cluster frame to the whole battery cluster and improving the energy density of the battery cluster. At the same time, when the battery packs 1 are stacked, the reinforcing supports 2 arranged on the side walls of the battery packs 1 abut and support each other sequentially, thereby sharing the pressure on the battery packs 1, so that the box and other force-bearing parts of the battery pack 1 can be arranged to be relatively light and thin, achieving lightweight design, thereby reducing material usage and space occupation and improving the energy density of the battery pack 1 and the whole battery cluster.

[0051] Further, the strength of the separately arranged reinforcing support 2 increases sequentially from top to bottom, which can be adjusted by adjusting the structure of the reinforcing support 2 itself during specific production and assembly process, so as to correspond to the sequentially increasing pressure on the battery pack 1 from top to bottom when stacked, thereby adjusting the structure of the reinforcing support 2 according to the pressure on the battery pack 1, so that it can meet the corresponding strength requirement while reducing strength redundancy, reducing material waste and reducing the weight of the whole battery cluster, thereby reducing the cost while improving the energy density of the battery pack 1 and the whole battery cluster.

[0052] Specifically, during the assembly process of the battery cluster, when the battery packs 1 are directly stacked by cancelling the cluster frame, the lower battery packs 1 need to bear the pressure from the upper battery packs 1 except the uppermost battery pack 1, and the pressure on the battery pack 1 increases as it goes down. At this time, in order to ensure that the battery pack 1 can meet the strength requirement and avoid damage to the internal structure of the battery pack 1 such as the battery cell, one method is to strengthen the strength of each battery pack 1 to the highest strength requirement, that is, each battery pack 1 can meet the strength requirement when arranged at the bottom. In this case, the upper battery packs 1 all have strength redundancy, and the strength redundancy increases as it goes up, which not only leads to material waste and increases the cost of the whole battery cluster, but also affects the volume and weight of the whole battery cluster, affecting the energy density of the whole battery cluster.

[0053] The other method is to set each battery pack 1 to different strengths, but at this time, on the one hand, the structure of each battery pack 1 needs to be designed and produced separately, which will not only affect the production efficiency, but also cause the cost to rise. On the other hand, when assembling, multiple battery packs 1 need to be stacked in order according to the different strengths, which causes the battery cluster assembly process to be complicated.

[0054] Through the above arrangement of the present application, the reinforcing support 2 for bearing is arranged outside the battery pack 1, and the reinforcing support 2 supports in turn when the battery pack 1 is stacked. At this time, the battery pack 1 itself does not need to bear a large weight, so the battery pack 1 can be arranged to be relatively light and thin, achieving lightweight setting, thereby improving the energy density of the battery pack 1 and the battery cluster as a whole and reducing the cost. At the same time, the strength of the reinforcing support 2 is increased from top to bottom, thereby meeting the support strength requirement while reducing redundancy and material waste.

[0055] Further, compared with the arrangement of setting each battery pack 1 to different strengths, the reinforcing support 2 is a part arranged on the side wall of the battery pack 1 and only has a supporting effect, so the structure of the reinforcing support 2 is simpler than that of the battery pack 1, and it is also simpler and lower in cost to design the structure. The reinforcing support 2 can be made of steel or other materials with high strength and low cost, which can reduce the production cost compared with the battery box which has high requirements for material performance. At the same time, when assembling, the battery pack 1 can be stacked and supported first, and then the reinforcing support 2 is fixed on the side wall of the battery pack 1 by welding or bolt connection to realize abutting support, without the need for special stacking order, so the assembly process is simple and fast.

[0056] At the same time, in the present application, in order to ensure that the pressure of the battery pack 1 can be shared to the reinforcing support 2 when the battery pack 1 is stacked, and to reduce the pressure on the battery pack 1 itself, a certain gap needs to be arranged between two battery packs 1, so that the weight of the upper battery pack 1 will not be directly pressed to the lower battery pack 1, but will be transmitted to the reinforcing support 2 on the side, and then transmitted downward through the abutting support of the reinforcing support 2. In actual arrangement, the lower end of the reinforcing support 2 can be arranged lower than the bottom surface of the corresponding battery pack 1, or the upper end of the reinforcing support 2 can be arranged higher than the upper end surface of the corresponding battery pack 1.

[0057] In addition, it should be noted that the abutting support of the two reinforcing supports 2 in the present application includes direct contact between the two reinforcing supports 2 to achieve support, or the support between the two reinforcing supports 2 through an intermediate part, such as a non-slip pad or other structure arranged between the contact surfaces of the two reinforcing supports 2, which can be arranged according to the actual situation, and the present application does not make specific limitations.

[0058] Meanwhile, as shown in Figure 1 In the present application, only the specific embodiment that a plurality of battery packs 1 are sequentially stacked to form a row of battery clusters is given. In some cases, the battery packs 1 can also be stacked to form multiple rows of battery clusters. The specific configuration can be set according to the actual situation and certain adaptive adjustment can be made. The present application does not make specific limitations in this regard.

[0059] In the present application, the reinforcing support 2 can be specifically configured as any suitable structure.

[0060] As shown in Figures 1 to 3 In an exemplary embodiment provided by the present application, the reinforcing support 2 can include at least one support column 21, which is fixedly arranged on the side wall of the battery pack 1, and the number of support columns 21 increases sequentially from top to bottom when the battery packs 1 are stacked.

[0061] Based on the above embodiments of the present application, a specific structure of the reinforcing support 2 is provided, i.e., the reinforcing support 2 is composed of a plurality of separately arranged support columns 21, and the strength of the reinforcing support 2 is adjusted by adjusting the number of support columns 21.

[0062] Specifically, when the reinforcing support 2 is configured as a support column 21, and multiple support columns 21 are arranged on the same side of a single battery pack 1, the multiple support columns 21 can be arranged at equal intervals along the extension direction of the side wall of the battery pack 1, so that the support effect of the support columns 21 on the battery pack 1 is more uniform, and to some extent, the problems such as damage of the support columns 21 or deviation of the battery cluster to one side caused by uneven stress are avoided.

[0063] Meanwhile, when the reinforcing support 2 is specifically configured as a support column 21, the strength of the reinforcing support 2 corresponding to the side of the battery pack 1 is enhanced by sequentially increasing the number of support columns 21 from top to bottom. In this process, the number of corresponding support columns 21 can be arranged in the form of an arithmetic sequence. For example, one support column 21 is sequentially added from top to bottom, or two support columns 21 are sequentially added from top to bottom, or three, four or more support columns 21 are sequentially added.

[0064] Further, in some embodiments of the present application, the support column 21 can have a first support surface 211, a second support surface 212 and a third support surface 213. The first support surface 211 is formed on the side of the support column 21 and connected to the side wall of the battery pack 1. The second support surface 212 and the third support surface 213 are respectively formed on the two ends of the support column 21, and in the two adjacent support columns 21 along the stacking direction of the battery pack 1, the second support surface 212 of the lower support column 21 is arranged opposite to the third support surface 213 of the upper support column 21.

[0065] Based on the above embodiments of the present application, when the reinforcing support 2 is provided as a plurality of support columns 21, the support columns 21 are in surface contact with the side wall of the battery pack 1 by the provision of the first support surface 211, thereby increasing the contact area therebetween and reducing the stress per unit area of the side wall of the battery pack 1, thereby reducing the strength requirement for the side wall of the battery pack 1 and achieving lightweight setting of the side wall of the battery pack 1. Meanwhile, the provision of the second support surface 212 and the third support surface 213 and the facing arrangement of the two of the two adjacent support columns 21 when the battery pack 1 is stacked make the support between the two adjacent support columns 21 more stable.

[0066] Specifically, in the actual assembly and fixing process, the weight of the upper battery pack 1 does not directly act on the lower battery pack 1 by the above provision of the present application, so that the connection position of the side wall of the battery pack 1 and the support column 21 only needs to bear the weight of a single battery pack 1. At this time, the first support surface 211 is in surface contact with the side wall of the battery pack 1, and then the support column 21 and the side wall of the battery pack 1 can be fixed by various connection methods including welding, bolt connection and riveting.

[0067] Meanwhile, by forming the second support surface 212 and the third support surface 213, the support between the ends of the two adjacent support columns 21 can be made more stable when they abut and support each other, thereby improving the stability of the reinforcing support 2 as a whole when supporting.

[0068] Reference Figure 3 As shown in FIG. 1, in some embodiments of the present application, a cavity structure can be formed on the side of the support column 21 away from the first support surface 211, and a reinforcing rib 214 is arranged in the cavity structure.

[0069] Based on the above embodiments of the present application, by forming the cavity structure, the material usage and weight of the support column 21 are reduced, and the provision of the reinforcing rib 214 can ensure that the support column 21 has sufficient strength while the cavity structure is formed, thereby ensuring the overall support strength of the reinforcing support 2 when the battery cluster is arranged in groups.

[0070] Specifically, since the support column 21 mainly bears the pressure in the axial direction when arranged, the reinforcing rib 214 can be arranged in the cavity structure in the axial direction of the support column 21 when arranged. Meanwhile, the reinforcing rib 214 can be provided in plurality, and the plurality of reinforcing ribs 214 are arranged in parallel with each other. Further, the plurality of reinforcing ribs 214 can be connected to each other by the provision of a connecting structure, so as to further improve the strength of the reinforcing rib 214.

[0071] In addition, it should be noted that in some embodiments of the present application, the support column 21 can be integrally formed, and the support column 21 can be made of steel or resin or other high-strength materials. For example, when the support column 21 is made of steel, the support column 21 can be integrally formed by casting or other methods.

[0072] Referring to FIGS. 1 and 2, in some embodiments of the present application, at least four support columns 21 are provided on each side of the battery pack 1, and the four support columns 21 are symmetrically arranged on both sides of the battery pack 1 along a first direction, and at least two support columns 21 on the same side are arranged at equal intervals along a second direction. The first direction is perpendicular to the stacking direction of the battery pack 1, and the second direction is perpendicular to the stacking direction of the battery pack 1 and perpendicular to the first direction. Figure 1 Figure 2 Based on the above embodiments of the present application, by arranging the support column 21 on both sides of the battery pack 1, the support of the support column 21 for the battery pack 1 and the battery cluster as a whole is more balanced, which can to some extent avoid the battery cluster from deviating to one side. By arranging at least two support columns 21 on the same side of the battery pack 1 and arranging the two support columns 21 at equal intervals, the support stability of the battery cluster as a whole is further enhanced.

[0073] Specifically, in the actual processing and assembly process, the battery pack 1 is usually arranged as a cuboid structure with a rectangular horizontal cross section. At this time, the above-mentioned first direction can refer to the width direction of the battery pack 1, and the second direction can refer to the length direction of the battery pack 1, and the stacking direction of the battery pack 1 corresponds to the height direction of the battery pack 1. By symmetrically arranging the support column 21 on both sides of the width direction of the battery pack 1 and arranging a plurality of support columns 21 along the length direction of the battery pack 1, the support stability of the battery pack 1 and the battery cluster as a whole is further improved.

[0074] Referring to FIGS. 1 and 2, in some embodiments of the present application, at least four support columns 21 are provided on each side of the battery pack 1, and the four support columns 21 are symmetrically arranged on both sides of the battery pack 1 along a first direction, and at least two support columns 21 on the same side are arranged at equal intervals along a second direction. The first direction is perpendicular to the stacking direction of the battery pack 1, and the second direction is perpendicular to the stacking direction of the battery pack 1 and perpendicular to the first direction.

[0075] Referring to FIGS. 1 and 2, in some embodiments of the present application, at least four support columns 21 are provided on each side of the battery pack 1, and the four support columns 21 are symmetrically arranged on both sides of the battery pack 1 along a first direction, and at least two support columns 21 on the same side are arranged at equal intervals along a second direction. The first direction is perpendicular to the stacking direction of the battery pack 1, and the second direction is perpendicular to the stacking direction of the battery pack 1 and perpendicular to the first direction. Figures 4 to 6 In another exemplary embodiment provided by the present application, the reinforcing support 2 can be arranged as a frame structure, and the reinforcing support 2 includes a top rod 22 and a bottom rod 23, two end rods 24, and at least one reinforcing rod 25. The top rod 22 and the bottom rod 23 are arranged in parallel, the end rod 24 is connected between the end of the top rod 22 and the end of the bottom rod 23, the end rod 24 cooperates with the top rod 22 and the bottom rod 23 to form a rectangular frame structure, and the end rod 24 is arranged in the same direction as the stacking direction of the battery pack 1. The at least one reinforcing rod 25 is connected between the top rod 22 and the bottom rod 23, and the number of reinforcing rods 25 increases sequentially from top to bottom when the battery pack 1 is stacked.

[0076] ​Based on the above embodiments of the present application, another specific structure of the reinforcing support 2 is provided, which makes the contact area of the two adjacent reinforcing supports 2 larger when abutting and supporting, so that the support between the two reinforcing supports 2 is more stable. At the same time, the number of reinforcing rods 25 is adjusted to adjust the strength of the reinforcing support 2, so as to correspond to the different pressure sizes of the battery pack 1 in different positions when stacking.

[0077] Specifically, when the reinforcing support 2 is arranged in a frame structure, the top rod 22, the bottom rod 23 and the end rod 24 can be fixed to the side wall of the battery pack 1 by welding, riveting or bolt connection. At the same time, the top rod 22 and the end rod 24, the bottom rod 23 and the end rod 24, the top rod 22 and the reinforcing rod 25, and the bottom rod 23 and the reinforcing rod 25 can be fixed by bolt connection, at this time, the number of reinforcing rods 25 is adjusted, and then the strength of the reinforcing support 2 is adjusted. It can also be integrally machined by casting, so as to improve the strength of the reinforcing support 2 itself.

[0078] Further, in some embodiments of the present application, when the reinforcing rod 25 is arranged, the reinforcing rod 25 can be connected between the top rod 22 and the bottom rod 23 along the stacking direction of the battery pack 1, or part of the reinforcing rod 25 can be arranged at an angle to the stacking direction of the battery pack 1, at this time, the reinforcing rod 25 should be symmetrically arranged in groups of two, and the two reinforcing rods 25 symmetrically form an eight-shaped structure, so as to enhance the resistance effect to the force in the inclined direction.

[0079] At the same time, the same as the last embodiment, when the reinforcing support 2 is arranged in a frame structure composed of the top rod 22, the bottom rod 23, the end rod 24 and the reinforcing rod 25, at this time, each battery pack 1 can be symmetrically arranged on both sides along the first direction. A group of frame structures are arranged, so that the reinforcing support 2 supports the battery pack 1 and the battery cluster more evenly.

[0080] Reference Figure 7 In some embodiments of the present application, at least one of the upper and lower ends of the side wall of the battery pack 1 is provided with a flange 3, and the flange 3 is located between the two adjacent reinforcing supports 2 along the stacking direction of the battery pack 1.

[0081] Based on the above embodiments of the present application, the connection between the battery pack 1 and the reinforcing support 2 is strengthened by the arrangement of the flange 3, so that the connection between the battery pack 1 and the reinforcing support 2 is more stable.

[0082] Specifically, in the actual production process, the flange 3 can be arranged at both the upper end and the lower end of the side wall of the battery pack 1, or only at the upper end or the lower end of the side wall of the battery pack 1. The arrangement can be determined according to the connection requirement, and the present application does not make a specific limitation in this regard.

[0083] Meanwhile, when the reinforcing support 2 is assembled and fixed, the flange 3 is arranged between the two reinforcing supports 2 at this time. When the battery pack 1 is stacked, the flange 3 is subjected to the pressure caused by the abutment of the two reinforcing supports 2, and the pressure direction is along the thickness direction of the flange 3. Since the reinforcing support 2 is fixedly connected with the side wall of the battery pack 1, the reinforcing support 2 and the flange 3 do not have a large relative movement, so that the pulling force on the flange 3 is small. Therefore, the flange 3 can be arranged to be relatively thin, and the connection between the reinforcing battery pack 1 and the reinforcing support 2 can be achieved while avoiding excessive influence on the size of the battery cluster in the thickness direction.

[0084] Further, in the actual production process, the flange 3 can be integrally processed and formed with the box body of the battery pack 1 by bending or the like. The bending processing not only is simple and convenient in the processing process, but also can strengthen the connection strength between the flange 3 and the box body of the battery pack 1.

[0085] In some embodiments, the two reinforcing supports 2 adjacent in the stacking direction of the battery pack 1 are connected by a bolt, and the bolt passes through the flange 3.

[0086] Based on the above-mentioned embodiments of the present application, the bolt connection is not only convenient and fast, but also has high connection strength, and can also improve the connection strength between the reinforcing support 2 and the flange 3.

[0087] Specifically, in the specific connection, when the reinforcing support 2 is arranged as a support column 21, the bolt can be arranged to pass downward from the cavity structure of the upper support column 21, sequentially pass through the third support surface 213 of the upper support column 21, the flange 3 and the second support surface 212 of the lower support column 21, and then be fixed in the cavity structure of the lower support column 21 by a nut. Alternatively, when the reinforcing support 2 is arranged as a frame structure, the bolt can sequentially pass through the bottom rod 23 of the upper reinforcing support 2, the flange 3 and the top rod 22 of the lower reinforcing support 2 from top to bottom, thereby achieving the bolt connection between the two adjacent reinforcing supports 2.

[0088] By connecting the two adjacent reinforcing supports 2 by the bolt, and the bolt passing through the flange 3, compared with the welding connection between the two reinforcing supports 2, only the edge region of the contact surface is welded in the welding connection, while the bolt directly passes through part of the structure of the reinforcing support 2 in the bolt connection, thereby improving the connection strength of the connection position and making the connection between the two adjacent reinforcing supports 2 more stable.

[0089] Reference Figure 8 As shown in FIG. 1, in some embodiments of the present application, the battery cluster can further include a positioning module 4, which includes a positioning hole 41 and a positioning pin 42. In any two adjacent battery packs 1 along the stacking direction, one of the battery packs 1 is provided with the positioning hole 41, and the other battery pack 1 is provided with the positioning pin 42, which can be inserted into the positioning hole 41.

[0090] Based on the above embodiments of the present application, by providing the positioning module 2, the alignment between the battery packs 1 can be more accurate when the battery packs 1 are stacked, so that the adjacent two reinforcing supports 2 can be better supported, thereby improving the stability of the support.

[0091] Specifically, in the actual assembly process, two positioning modules 4 can be provided between the adjacent two battery packs 1, and the relative positions of the two battery packs 1 in the stacking direction can be fixed by the two positioning modules 4, so that the two battery packs 1 can be more accurately docked when stacked, and thus the reinforcing supports 2 between the adjacent two battery packs 1 can be more stably supported.

[0092] On the basis of the above technical solutions, according to the second aspect of the present application, a power consuming device is provided, which includes a device main body and the above-mentioned battery cluster. The device main body is provided with a receiving cavity, and the battery cluster is arranged in the receiving cavity.

[0093] Specifically, in the present application, the power consuming device can be, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an electric toy, an electric tool, an electric car, an electric vehicle, a ship, a spacecraft, etc. The electric toy can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric plane toys, etc. The spacecraft can include airplanes, rockets, space shuttles, and spaceships, etc.

[0094] Based on the above embodiments of the present application, the power consuming device provided by the present application includes the above-mentioned battery cluster, and thus also has the above-mentioned beneficial effects. To avoid repetition, further description is omitted here.

[0095] The preferred embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solutions of the present application, and these simple modifications all belong to the protection scope of the present application.

[0096] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, various possible combinations are not described again in the present application.

[0097] Furthermore, the various embodiments of the present application can be combined, where appropriate, to yield further embodiments, without departing from the scope of the present application.

Claims

1. A battery cluster, characterized in that, The battery cluster includes: At least two battery packs, wherein the at least two battery packs are stacked sequentially and interconnected; At least two reinforcing support members are correspondingly disposed on at least two of the side walls of the battery pack and fixedly connected to the battery pack; Along the stacking direction of the battery pack, any two adjacent reinforcing supports abut against each other. When the battery packs are stacked, the strength of the reinforcing support increases sequentially from top to bottom.

2. The battery cluster according to claim 1, characterized in that, The reinforcing support includes at least one support column, which is fixedly disposed on the side wall of the battery pack, and the number of support columns increases sequentially from top to bottom when the battery packs are stacked.

3. The battery cluster according to claim 2, characterized in that, The support column has a first support surface, a second support surface and a third support surface. The first support surface is formed on the side of the support column and connected to the side wall of the battery pack. The second support surface and the third support surface are respectively formed at both ends of the support column. In two adjacent support columns along the battery pack stacking direction, the second support surface of the lower support column is positioned opposite to the third support surface of the upper support column.

4. The battery cluster according to claim 3, characterized in that, A cavity structure is formed on the side of the support column opposite to the first support surface, and a reinforcing rib is provided inside the cavity structure.

5. The battery cluster according to claim 2, characterized in that, Each of the battery packs has at least four support columns on its side. The four support columns are symmetrically arranged on both sides of the battery pack along the first direction, and at least two of the support columns on the same side are equally spaced along the second direction. Wherein, the first direction is perpendicular to the battery pack stacking direction, the second direction is perpendicular to the battery pack stacking direction, and is also perpendicular to the first direction.

6. The battery cluster according to claim 1, characterized in that, The reinforcing support is configured as a frame structure, and the reinforcing support includes: A top rod and a bottom rod, wherein the top rod and the bottom rod are arranged in parallel; Two end rods are provided, connecting the end of the top rod and the end of the bottom rod. The end rods, together with the top and bottom rods, form a rectangular frame structure, and the direction of the end rods is consistent with the stacking direction of the battery pack; and... At least one reinforcing rod is connected between the top rod and the bottom rod, and the number of reinforcing rods increases sequentially from top to bottom when the battery packs are stacked.

7. The battery cluster according to any one of claims 1-6, characterized in that, At least one of the upper and lower ends of the sidewall of the battery pack is provided with a flange, and the flange is located between two adjacent reinforcing supports along the stacking direction of the battery pack.

8. The battery cluster according to claim 7, characterized in that, Any two adjacent reinforcing supports along the battery pack stacking direction are connected by bolts, and the bolts pass through the flanges.

9. The battery cluster according to claim 7, characterized in that, The battery cluster also includes a positioning module, which includes positioning holes and positioning pins; In any two adjacent battery packs along the stacking direction, one battery pack is provided with a positioning hole, and the other battery pack is provided with a positioning pin, the positioning pin being able to be inserted into the positioning hole.

10. An electrical appliance, characterized in that, The electrical equipment includes: The main body of the equipment, wherein a receiving cavity is provided within the main body of the equipment; and, The battery cluster as described in any one of claims 1-9, wherein the battery cluster is disposed within the receiving cavity.

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