Battery pack and electric equipment

Abstract

The utility model provides a battery pack and electric equipment. The battery pack comprises a box body, a battery module and an anti-collision beam, the box body is provided with a mounting cavity and at least one anti-collision side plate, and the anti-collision side plate is located on one side of the mounting cavity and forms part of the side wall of the mounting cavity. The battery module is arranged in the mounting cavity and is spaced from the anti-collision side plate; and the anti-collision beam is arranged between the battery module and the anti-collision side plate. According to the battery pack provided by the utility model, the technical problem of insufficient anti-collision strength of the side protection structure of the battery pack can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field, concretely relates to a battery pack and electric equipment. BACKGROUND

[0002] In order to meet the industry's safety standards for electric vehicles, the battery pack must have certain side protection capability. In the related art, the side of the battery pack is provided with side protection structures such as anti-collision side plates and anti-collision side beams. When the battery pack is subjected to impact and extrusion from the side, the side protection structures can absorb and disperse the impact force, thereby avoiding direct damage to the battery pack, and thus avoiding safety problems such as internal short circuit and electrolyte leakage of the battery. However, the anti-collision strength of the side protection structure of the current battery pack is insufficient, which cannot meet the side impact regulations of the battery pack. SUMMARY

[0003] Embodiments of the utility model provide a battery pack and electric equipment, which can improve the technical problem of insufficient anti-collision strength of the side protection structure of the battery pack.

[0004] In one embodiment, both sides of the battery pack in the width direction are provided with the anti-collision side plates, both sides of the battery module in the width direction are spaced apart from the corresponding anti-collision side plates, and the anti-collision beam is arranged between any one side of the battery module in the width direction and the corresponding anti-collision side plate.

[0005] In one embodiment, both sides of the battery pack in the width direction are provided with the anti-collision side plates, both sides of the battery module in the width direction are spaced apart from the corresponding anti-collision side plates, and the anti-collision beam is arranged between any one side of the battery module in the width direction and the corresponding anti-collision side plate.

[0006] In one embodiment, the anti-collision beam comprises a first anti-collision plate, a second anti-collision plate and a connecting plate. The first anti-collision plate and the second anti-collision plate are spaced apart and opposite, and the first anti-collision plate is located between the anti-collision side plate and the second anti-collision plate, and the second anti-collision plate is located between the first anti-collision plate and the battery module. The connecting plate is connected between the first anti-collision plate and the second anti-collision plate.

[0007] In one embodiment, the connecting plate is provided with a plurality of connecting plates, each of which has opposite first and second connecting ends. The first connecting ends are connected to each other and connected to the first anti-collision plate, the second connecting ends are connected to the second anti-collision plate, and the second connecting ends are spaced apart along the height direction of the second anti-collision plate.

[0008] In an embodiment, the plurality of connecting plates are connected by the plurality of first connecting ends to form a pointed corner structure, and the pointed corner of the pointed corner structure faces the anti-collision side plate.

[0009] In an embodiment, the box further comprises a bottom guard plate, the bottom guard plate forms a bottom wall of the mounting cavity, and the battery module is mounted on the bottom guard plate; the anti-collision beam further comprises a fixed bottom plate, the fixed bottom plate is located on the lower side of the connecting plate and connected between the first anti-collision plate and the second anti-collision plate, and the fixed bottom plate is fixedly connected with the bottom guard plate.

[0010] In an embodiment, one end of the anti-collision beam away from the bottom guard plate is provided with an opening, the opening is located between the first anti-collision plate and the second anti-collision plate, and the connecting plate is located between the opening and the fixed bottom plate.

[0011] In an embodiment, the mounting cavity is further filled with potting glue, and the connecting plate is provided with a glue passing hole penetrating therethrough, and the glue passing hole is used for flowing the potting glue into the anti-collision beam.

[0012] In an embodiment, the fixed bottom plate is further provided with a glue containing hole penetrating the fixed bottom plate along the thickness direction of the fixed bottom plate, and the glue containing hole is used for flowing the potting glue to contact the bottom guard plate.

[0013] In an embodiment, in the width direction of the battery pack, the anti-collision beam and the anti-collision side plate are arranged at intervals, and the gap between the anti-collision beam and the anti-collision side plate is greater than or equal to 2 mm and less than or equal to 10 mm; and / or, in the width direction of the battery pack, the anti-collision beam and the battery module are arranged at intervals, and the gap between the anti-collision beam and the battery module is greater than or equal to 2 mm and less than or equal to 10 mm.

[0014] In an embodiment, the anti-collision beam is made of fiber reinforced composite material.

[0015] In an embodiment, the side surface of the anti-collision side plate away from the anti-collision beam is further provided with an anti-collision edge beam, and the anti-collision edge beam extends along the length direction of the anti-collision side plate.

[0016] In an embodiment, the anti-collision edge beam and the anti-collision side plate are further connected with a reinforcing rib.

[0017] In an embodiment, the anti-collision side beam has opposite inner sides and outer sides, the inner sides are connected with the anti-collision side plates, and the outer sides are spaced apart from the anti-collision side plates; a hanging sleeve for connecting the anti-collision side beam with an electrical equipment is further fixed on the anti-collision side beam, the hanging sleeve is located between the inner sides and the outer sides, and the distance between the hanging sleeve and the inner sides is smaller than the distance between the hanging sleeve and the outer sides.

[0018] In an embodiment, the hanging sleeve is welded to the anti-collision side beam, and a welding material is connected between the hanging sleeve and the anti-collision side beam, the welding material extends along the circumferential direction of the hanging sleeve.

[0019] In a second aspect, the embodiments of the utility model provide a kind of electrical equipment, and the electrical equipment includes the battery pack described in any one of the above embodiments.

[0020] The embodiments of the utility model have the following beneficial effects:

[0021] In the embodiments of the utility model, the anti-collision beam is further arranged between the anti-collision side plate and the battery module of the battery pack, so that the anti-collision strength of the side protection structure of the battery pack can be improved, and then when the battery pack is impacted or extruded from the side, the anti-collision side plate and the anti-collision beam can absorb and disperse the impact force, so that the battery pack is prevented from being directly damaged, and safety problems such as internal short circuit and electrolyte leakage of the battery are avoided.

[0022] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is the perspective view of the battery pack provided by the embodiments of the utility model;

[0025] Figure 2 Figure 1 is the structural cross-sectional view of the battery pack in the figure;

[0026] Figure 3 Figure 2 is the partial structural cross-sectional view of the battery pack in the figure;

[0027] Figure 4 is the perspective view of the anti-collision beam in the battery pack of the present application.

[0028] Figure 5 is Figure 4 a perspective view of the anti-collision beam from another angle in

[0029] Figure 6 is Figure 4 a side view of the anti-collision beam in

[0030] Figure 7 is Figure 1 an enlarged view of the structure at A in

[0031] Figure 8 is a partial structural sectional view of the battery pack of the present application. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing in the drawings. And "inner" and "outer" refer to the outline of the device.

[0033] To improve the technical problem of insufficient anti-collision strength of the side protection structure of the battery pack, the embodiments of the present application provide a battery pack 100, as shown in Figure 1 and Figure 2 , Figure 1 is a structural schematic view of an embodiment of the battery pack 100 of the present application, Figure 2 is Figure 1 a structural sectional view of an embodiment of the battery pack in The battery pack 100 mainly includes a box body 10, a battery module 20 and an anti-collision beam 30. The box body 10 is provided with a mounting cavity 11 and at least one anti-collision side plate 12, the anti-collision side plate 12 is located on one side of the mounting cavity 11 and constitutes part of the side wall of the mounting cavity 11; the battery module 20 is arranged in the mounting cavity 11 and is spaced apart from the anti-collision side plate 12; the anti-collision beam 30 is arranged between the battery module 20 and the anti-collision side plate 12.

[0034] Specifically, please refer to Figure 1 and Figure 2The overall shape of the box body 10 is approximately a rectangular parallelepiped, so the box body 10 has a length direction, a width direction and a height direction. In this embodiment, the box body 10 includes two end plates 14, two anti-collision side plates 12, a bottom guard plate 13 and a top cover plate 15. The two end plates 14 are spaced opposite to each other along the length direction of the box body 10, the two anti-collision side plates 12 are spaced opposite to each other along the width direction of the box body 10, the bottom guard plate 13 and the top cover plate 15 are spaced opposite to each other along the height direction of the box body 10, and the top cover plate 15 is located above the bottom guard plate 13.

[0035] The two end plates 14, the two anti-collision side plates 12, the bottom guard plate 13 and the top cover plate 15 together enclose an installation cavity 11. The battery module 20 and other electrical components (such as a battery management system, high and low voltage connectors, etc.) are installed in the installation cavity 11. The battery module 20 mainly includes multiple battery cells and accessories that physically and electrically connect the multiple battery cells.

[0036] Generally, the overall shape of the battery module 20 is also approximately a rectangular parallelepiped. When the battery module 20 is installed in the installation cavity 11, the length direction, width direction and height direction of the battery module 20 are respectively parallel to the length direction, width direction and height direction of the box body 10.

[0037] The battery management system, high and low voltage connectors and other electrical components are usually installed on one side of the length direction of the battery module 20. In this embodiment, Figure 2 As shown, both sides of the battery module 20 in the width direction are spaced apart from and opposite to the corresponding anti-collision side panels 12 , so that the anti-collision beam 30 can be installed between the battery module 20 and the anti-collision side panels 12 .

[0038] The specific structure of the anti-collision beam 30 can be various, for example, the anti-collision beam 30 can be a solid rod, a hollow tube, a frame, etc., and the anti-collision beam 30 can extend along the length of the battery module 20 to provide more comprehensive protection for the battery module 20. In addition, the anti-collision beam 30 can be installed between the battery module 20 and the anti-collision side panel 12 by bolting, clamping, bonding, or natural placement.

[0039] From the above, it can be understood that the battery pack 100 of the present invention further provides an anti-collision beam 30 between its anti-collision side plate 12 and the battery module 20, which can improve the anti-collision strength of the side protection structure of the battery pack 100. When the battery pack 100 is hit or squeezed from the side, the anti-collision side plate 12 and the anti-collision beam 30 can absorb and disperse the impact force, avoiding direct damage to the battery pack 100, thereby avoiding safety problems such as internal short circuit of the battery and electrolyte leakage.

[0040] It should be noted here that when the battery pack 100 is installed on the car, the car is usually provided with a better protective structure at the position corresponding to the end plate 14, so the anti-collision beam 30 may not be provided between the battery module 20 and the end plate 14 of the box body 10. Of course, if the electrical equipment does not have a protective structure at the position corresponding to the end plate 14, an anti-collision beam 30 may also be provided between the battery module 20 and the end plate 14 of the box body 10. In this case, the end plate 14 may also be called an anti-collision side plate 12, that is, the box body 10 at this time includes four anti-collision side plates 12, and the four anti-collision side plates 12 surround the circumference of the installation cavity 11. The battery module 20 is spaced apart from each anti-collision side plate 12, and an anti-collision beam 30 is provided between the battery module 20 and each anti-collision side plate 12.

[0041] In addition, one anti-collision side panel 12 may be provided. For example, in some embodiments, the peripheral side of the housing 10 includes two end panels 14, one ordinary side panel, and one anti-collision side panel 12. The two end panels 14 are spaced apart and opposed to each other along the length of the housing 10, and the ordinary side panel and the anti-collision side panel 12 are spaced apart and opposed to each other along the width of the housing 10. When the battery pack 100 is installed on an electrical device, the electrical device is provided with a better protective structure at the positions corresponding to the two end panels 14 and the ordinary side panels. Therefore, there is no need for spacing between the battery module 20 and the two end panels 14, and between the battery module 20 and the ordinary side panels, that is, there is no need for an anti-collision beam 30. Instead, there is a spacing between the battery module 20 and the only anti-collision side panel 12, and an anti-collision beam 30 is provided between the battery module 20 and the anti-collision side panel 12.

[0042] Optionally, in one embodiment, as Figure 2 As shown, anti-collision side plates 12 are provided on both sides of the battery pack 100 in the width direction, both sides of the battery module 20 in the width direction are spaced apart from the corresponding anti-collision side plates 12, and an anti-collision beam 30 is provided between any side of the battery module 20 in the width direction and the corresponding anti-collision side plate 12.

[0043] Specifically, in this embodiment, the battery pack 100 is used in a car. Due to the limitation of the car space, the car generally does not have a good protective structure on both sides of the battery pack 100 in the width direction. Therefore, in this embodiment, by providing anti-collision side panels 12 on both sides of the installation cavity 11, and providing an anti-collision beam 30 between the battery module 20 and the corresponding anti-collision side panels 12, both sides of the battery module 20 in the width direction can be protected to prevent the sides of the battery module 20 from being damaged by impact.

[0044] Optionally, in one embodiment, as Figures 3 to 6 As shown in any of the figures, each anti-collision beam 30 includes a first anti-collision plate 31, a second anti-collision plate 32 and a connecting plate 33. Figure 3As shown, the first and second bumpers 31 and 32 are spaced apart along the width direction of the box body 10, and the first bumper 31 is located between the bumper side plate 12 and the second bumper 32, and the second bumper 32 is located between the first bumper 31 and the battery module 20; the connecting plate 33 is connected between the first and second bumpers 31 and 32. That is, in this embodiment, the bumper beam 30 is configured as a frame structure, so that the weight of the bumper beam 30 is lighter, and the problem of the heavy weight of the battery pack 100 is avoided.

[0045] Optionally, in an embodiment, as shown in Figures 3 to 6 As shown in any of the drawings, the connecting plate 33 is provided with a plurality of connecting plates 33, each of which has opposite first and second connecting ends 331 and 332, a plurality of first connecting ends 331 are connected to each other and connected to the first bumper 31, a plurality of second connecting ends 332 are connected to the second bumper 32 respectively, and a plurality of second connecting ends 332 are arranged along the height direction of the second bumper 32.

[0046] Specifically, in this embodiment, the first connecting ends 331 of the plurality of connecting plates 33 are connected to the same position on the first bumper 31, and the second connecting ends 332 are connected to different positions on the second bumper 32, so that the plurality of connecting plates 33 form a sharp corner structure with the sharp corner facing the bumper side plate 12, which not only improves the structural stability of the bumper beam 30, but also disperses the impact force to different positions through the plurality of connecting plates 33 when the bumper side plate 12 is impacted, thereby improving the anti-collision strength of the bumper beam 30 and better protecting the battery module 20.

[0047] It should be noted that the number of connecting plates 33 can be two, three, four, five, etc., and the specific number can be selected flexibly as needed, for example, in Figure 4 or Figure 5 As shown in the structure scheme, the connecting plate 33 is provided with three, and the three first connecting ends 331 of the three connecting plates 33 are connected to the middle position of the first bumper 31, and the three second connecting ends 332 are connected to different positions of the second bumper 32.

[0048] Optionally, in an embodiment, as shown in Figure 3As shown, the box body 10 is also provided with a bottom guard plate 13, the bottom guard plate 13 constitutes the bottom wall of the mounting cavity 11, the battery module 20 is mounted on the bottom guard plate 13, the bottom guard plate 13 can form protection for the bottom of the battery module 20, avoid the battery module 20 being damaged when the bottom of the battery pack 100 is impacted or extruded, the specific structure of the bottom guard plate 13 can be realized by referring to the related prior art, which will not be described in detail here. In the embodiment, the anti-collision beam 30 also includes a fixed bottom plate 34, the fixed bottom plate 34 is located on the lower side of the connecting plate 33 and is connected between the first anti-collision plate 31 and the second anti-collision plate 32, and the fixed bottom plate 34 is fixedly connected with the bottom guard plate 13, so that the installation stability of the anti-collision beam 30 can be improved, and the anti-collision beam 30 can be prevented from shaking or tilting.

[0049] It should be noted that the connection mode between the fixed bottom plate 34 and the bottom guard plate 13 can have multiple choices, such as bolt connection, clamping, bonding, magnetic attraction connection and the like. In an embodiment, the fixed bottom plate 34 is bonded on the bottom guard plate 13 by adhesive, so that the structure is simple, convenient to install, and the installation stability can be ensured.

[0050] Optionally, in an embodiment, as shown in any one of the accompanying drawings, Figures 4 to 6 As shown in any one of the accompanying drawings, one end of the anti-collision beam 30 away from the bottom guard plate 13 is provided with an opening 35, the opening 35 is located between the first anti-collision plate 31 and the second anti-collision plate 32, and the connecting plate 33 is located between the opening 35 and the fixed bottom plate 34. Specifically, in the embodiment, reference can be made to Figure 2 When the anti-collision beam 30 is installed between the battery module 20 and the anti-collision side plate 12, the "sharp corner structure" formed by the plurality of first connecting ends 331 concentratedly connected needs to face the anti-collision side plate 12, that is, the first anti-collision plate 31 needs to be closer to the anti-collision side plate 12 than the second anti-collision plate 32. Therefore, the opening 35 is arranged in the embodiment, so that the orientation of the "sharp corner structure" can be observed by the assembler, and the anti-collision beam 30 can be installed more accurately, thereby avoiding the situation that the anti-collision beam 30 is installed reversely (i.e., the situation that the sharp corner structure faces the battery module 20).

[0051] In addition, in some embodiments, the mounting cavity 11 is also filled with potting glue, and the opening 35 can make the potting glue flow into the anti-collision beam 30 more fully.

[0052] Optionally, in an embodiment, the mounting cavity 11 is also filled with potting glue, as shown in any one of the accompanying drawings, Figure 4 or Figure 5 As shown, the connecting plate 33 is provided with a glue passing hole 333, the glue passing hole 333 is used for flowing the potting glue into the anti-collision beam 30, and when the potting glue is filled, the internal cavity of the anti-collision beam 30 is filled with the potting glue, so that the installation stability of the anti-collision beam 30 can be improved, and the anti-collision strength of the anti-collision beam 30 can be improved, thereby achieving better anti-collision effect.

[0053] It should be noted here that there is no limit to the type of potting compound, for example, it can be epoxy resin potting compound, silicone rubber potting compound, polyurethane potting compound, etc. The specific type can be flexibly selected according to needs.

[0054] In addition, if Figure 4 As shown, there may be multiple glue holes 333 on each connecting plate 33 , and the multiple glue holes 333 are arranged at intervals along the length direction of the connecting plate 33 , so that the potting glue can flow more fully into the anti-collision beam 30 .

[0055] Optionally, in one embodiment, as Figure 4 or Figure 5 As shown, the fixed bottom plate 34 is further provided with a glue hole 341, which penetrates the fixed bottom plate 34 along the thickness direction of the fixed bottom plate 34 and is used for the potting glue to flow into and contact the bottom guard plate 13. Figure 3 To understand, in this embodiment, when the potting compound flows onto the fixed base plate 34, it will continue to flow into the sol holes, thereby allowing the potting compound to contact the bottom guard plate 13. Since the potting compound has certain adhesive properties, the potting compound that has flowed into the anti-collision beam 30 can also flow into the adhesive holes 341 and adhere to the bottom guard plate 13, thereby further improving the installation stability and anti-collision strength of the anti-collision beam 30.

[0056] It should be noted that there can be multiple glue holes 341, and the multiple glue holes 341 are arranged at intervals along the length direction of the fixed base plate 34. This can increase the bonding area between the potting glue and the bottom guard plate 13, which is beneficial to improving the structural stability and anti-collision strength of the anti-collision beam 30.

[0057] Optionally, in one embodiment, as Figure 3 As shown, in the width direction of the battery pack 100, the anti-collision beam 30 and the anti-collision side plate 12 are spaced apart, and the gap between the anti-collision beam 30 and the anti-collision side plate 12 is greater than or equal to 2 mm and less than or equal to 10 mm. Specifically, the gap between the anti-collision beam 30 and the anti-collision side plate 12 can be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc.

[0058] It is understood that if the gap between the anti-collision beam 30 and the anti-collision side panel 12 is less than 2 mm, the potting compound will not easily flow into the gap between the anti-collision beam 30 and the anti-collision side panel 12 during filling. As a result, after the potting compound solidifies, there will still be an air gap between the anti-collision beam 30 and the anti-collision side panel 12, thereby reducing the protective effect. If the gap between the anti-collision beam 30 and the anti-collision side panel 12 is greater than 10 mm, the internal structure of the battery pack 100 will be less compact, resulting in wasted space.

[0059] Therefore, the embodiment can ensure that the pouring sealant can fully flow between the crash beam 30 and the crash side plate 12, improve the crash effect, and avoid causing the waste of space in the battery pack 100 by making the gap between the crash beam 30 and the crash side plate 12 greater than or equal to 2 mm and less than or equal to 10 mm.

[0060] Optionally, in an embodiment, as shown in Figure 3 the crash beam 30 and the battery module 20 are arranged in a spaced manner in the width direction of the battery pack 100, and the gap between the crash beam 30 and the battery module 20 is greater than or equal to 2 mm and less than or equal to 10 mm. Specifically, the gap between the crash beam 30 and the battery module 20 can be 2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, etc.

[0061] It can be understood that if the gap between the crash beam 30 and the battery module 20 is less than 2 mm, the pouring sealant is not easy to flow into the gap between the crash beam 30 and the battery module 20 when filling the pouring sealant, so that there is still an air gap between the crash beam 30 and the battery module 20 after the pouring sealant solidifies, and the protection effect is reduced. If the gap between the crash beam 30 and the battery module 20 is greater than 10 mm, the structure inside the battery pack 100 is not compact enough, causing space waste.

[0062] Therefore, the embodiment can ensure that the pouring sealant can fully flow between the crash beam 30 and the battery module 20, improve the crash effect, and avoid causing the waste of space in the battery pack 100 by making the gap between the crash beam 30 and the battery module 20 greater than or equal to 2 mm and less than or equal to 10 mm.

[0063] Optionally, in an embodiment, the crash beam 30 is made of a fiber-reinforced composite material, which can be a carbon fiber-reinforced composite material, a glass fiber-reinforced composite material, an aramid fiber-reinforced composite material, etc. It can be understood that the fiber-reinforced composite material has the characteristics of light weight and high strength, so that the crash beam 30 has a smaller weight and at the same time has a better crash strength.

[0064] Optionally, in an embodiment, as shown in Figure 1 or Figure 2 the side surface of the crash side plate 12 away from the crash beam 30 is also provided with a crash side beam 40, and the crash side beam 40 extends along the length direction of the crash side plate 12. Specifically, in the embodiment, the two sides of the box body 10 in the width direction are both provided with the crash side plate 12, and the crash side beam 40 is fixed outside each crash side plate 12. The crash side beam 40 is in a solid rod shape, and the crash side beam 40 extends along the length direction of the crash side plate 12.

[0065] It can be understood that, by arranging the anti-collision side beam 40, the side of the battery pack 100 can be collectively protected by the anti-collision side beam 40, the anti-collision side plate 12 and the anti-collision beam 30, so that the side of the battery pack 100 has better anti-impact strength, and the side of the battery module 20 is better protected.

[0066] Optionally, in an embodiment, as shown in Figure 2 The anti-collision side beam 40 and the anti-collision side plate 12 are further connected with a reinforcing rib 50. The reinforcing rib 50 is located below the anti-collision side beam 40 and connects the anti-collision side beam 40 and the anti-collision side plate 12, so as to improve the structural strength and anti-impact strength of the anti-collision side beam 40 and better resist impact.

[0067] Optionally, in an embodiment, as shown in Figure 7 and Figure 8 The anti-collision side beam 40 has opposite inner side edges 41 and outer side edges 42. The inner side edges 41 are connected with the anti-collision side plate 12, and the outer side edges 42 are spaced apart from the anti-collision side plate 12. The anti-collision side beam 40 is further fixed with a mounting bushing 60. The mounting bushing 60 is used for connecting the anti-collision side beam 40 with an electrical equipment. The mounting bushing 60 is located between the inner side edges 41 and the outer side edges 42, and the distance between the mounting bushing 60 and the inner side edges 41 is smaller than the distance between the mounting bushing 60 and the outer side edges 42.

[0068] That is, in the embodiment, the mounting bushing 60 is far away from the outer side edges 42 of the anti-collision side beam 40 and close to the inner side edges 41 and the anti-collision side plate 12. Therefore, when the anti-collision side beam 40 is deformed or damaged due to impact, the mounting bushing 60 is not easy to fall off the anti-collision side beam 40, and the connection position between the battery pack 100 and the electrical equipment is not easy to be damaged, thereby avoiding the situation that the battery pack 100 falls off and causes secondary damage.

[0069] Optionally, in an embodiment, as shown in Figure 7 and Figure 8 The mounting bushing 60 is welded and fixed on the anti-collision side beam 40, and a welding material 70 is connected between the mounting bushing 60 and the anti-collision side beam 40. The welding material 70 extends along the circumferential direction of the mounting bushing 60. Specifically, in the embodiment, the top surface 43 of the anti-collision side beam 40 is provided with a mounting hole. The mounting bushing 60 includes a rod portion 61 and a head portion 62 connected with each other. The rod portion 61 extends into the mounting hole, and the head portion 62 is supported on the top surface 43 of the anti-collision side beam 40. The mounting bushing 60 is further provided with a connecting hole 63 penetrating the rod portion 61 and the head portion 62. The connecting hole 63 is used for penetrating a connecting member (such as a bolt) to realize the connection between the anti-collision side beam 40 and the electrical equipment.

[0070] As shown in Figure 7 and Figure 8As shown, the outer periphery of the head 62 is provided with the solder 70, the solder 70 extends along the circumferential direction of the head 62, and the solder 70 is connected with the outer periphery of the head 62 and the top surface 43 of the anti-collision beam 40, that is, when welding, the welding gun is welded along the whole circumference of the head 62, so that the connection strength of the mounting bush 60 and the anti-collision beam 40 can be improved, and the mounting bush 60 is less likely to fall off from the anti-collision beam 40.

[0071] The embodiment of the present application also provides a kind of electric equipment (not shown), the electric equipment includes battery pack 100, the specific structure of the battery pack 100 refers to the above embodiment, since the above all embodiments are all technical solutions used in the present electric equipment, at least have all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0072] Among them, the electric equipment can be automobile, ship, industrial equipment, household equipment and the like.

[0073] The above embodiments of the present application are described in detail, the principle and implementation mode of the present application are described in this paper by applying specific examples, the above embodiment is only used to help understand the method and core idea of the present application; at the same time, for the skilled in the art, according to the idea of the present application, there will be changes in specific implementation mode and application range, as described above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A battery pack, characterized in that: include: A box body, the box body being provided with an installation cavity and at least one anti-collision side plate, the anti-collision side plate being located on one side of the installation cavity and constituting a part of a side wall of the installation cavity; A battery module, the battery module is arranged in the installation cavity and spaced apart from the anti-collision side plate; and An anti-collision beam is provided between the battery module and the anti-collision side plate.

2. The battery pack according to claim 1, wherein: The anti-collision side panels are provided on both sides of the battery pack in the width direction, the two sides of the battery module in the width direction are respectively spaced apart from the corresponding anti-collision side panels, and the anti-collision beam is provided between any side of the battery module in the width direction and the corresponding anti-collision side panel.

3. The battery pack according to claim 1, wherein: The anti-collision beam includes a first anti-collision plate, a second anti-collision plate and a connecting plate; the first anti-collision plate and the second anti-collision plate are spaced apart from each other, and the first anti-collision plate is located between the anti-collision side plate and the second anti-collision plate, and the second anti-collision plate is located between the first anti-collision plate and the battery module; the connecting plate is connected between the first anti-collision plate and the second anti-collision plate.

4. The battery pack according to claim 3, characterized in that: There are multiple connecting plates, each of which has a first connecting end and a second connecting end relative to each other, multiple first connecting ends are connected to each other and to the first anti-collision plate, multiple second connecting ends are respectively connected to the second anti-collision plate, and multiple second connecting ends are spaced apart along the height direction of the second anti-collision plate.

5. The battery pack according to claim 4, characterized in that: The plurality of connecting plates are connected through the plurality of first connecting ends to form a pointed-angle structure, wherein the pointed corners of the pointed-angle structure face toward the anti-collision side plate.

6. The battery pack according to claim 4, characterized in that: The box body is also provided with a bottom guard plate, which constitutes the bottom wall of the installation cavity, and the battery module is installed on the bottom guard plate; the anti-collision beam also includes a fixed bottom plate, which is located on the lower side of the connecting plate and connected between the first anti-collision plate and the second anti-collision plate, and the fixed bottom plate is fixedly connected to the bottom guard plate.

7. The battery pack according to claim 6, characterized in that: An opening is provided at one end of the anti-collision beam away from the bottom guard plate. The opening is located between the first anti-collision plate and the second anti-collision plate. The connecting plate is located between the opening and the fixed bottom plate.

8. The battery pack according to claim 7, characterized in that: The installation cavity is further filled with potting glue, and a glue hole is passed through the connecting plate, and the glue hole is used for allowing the potting glue to flow into the anti-collision beam.

9. The battery pack according to claim 8, characterized in that: The fixed base plate is further provided with a glue hole, which passes through the fixed base plate along the thickness direction of the fixed base plate, and is used for allowing the potting glue to flow into and contact the bottom guard plate.

10. The battery pack according to any one of claims 1 to 9, characterized in that: In the width direction of the battery pack, the anti-collision beam and the anti-collision side plate are spaced apart, and the gap between the anti-collision beam and the anti-collision side plate is greater than or equal to 2 mm and less than or equal to 10 mm; And / or, in the width direction of the battery pack, the anti-collision beam and the battery module are spaced apart, and the gap between the anti-collision beam and the battery module is greater than or equal to 2 mm and less than or equal to 10 mm.

11. The battery pack according to any one of claims 1 to 9, characterized in that: The anti-collision beam is made of fiber-reinforced composite material.

12. The battery pack according to any one of claims 1 to 9, characterized in that: A surface of the anti-collision side plate on one side away from the anti-collision beam is further provided with an anti-collision side beam, and the anti-collision side beam extends along the length direction of the anti-collision side plate.

13. The battery pack according to claim 12, wherein: A reinforcing rib is further connected between the anti-collision side beam and the anti-collision side plate.

14. The battery pack according to claim 12, wherein: The anti-collision side beam has an inner side and an outer side relative to each other, the inner side is connected to the anti-collision side plate, and the outer side is spaced apart from the anti-collision side plate; a mounting bushing is also fixed on the anti-collision side beam, and the mounting bushing is used for connecting the anti-collision side beam with electrical equipment, the mounting bushing is located between the inner side and the outer side, and the distance between the mounting bushing and the inner side is smaller than the distance between the mounting bushing and the outer side.

15. The battery pack according to claim 14, characterized in that: The mounting bushing is fixed on the anti-collision side beam by welding, and a solder is connected between the mounting bushing and the anti-collision side beam, and the solder extends along the circumferential direction of the mounting bushing.

16. An electrical device, characterized in that: Comprising a battery pack as described in any one of claims 1-15.

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