A battery pack housing, a battery pack and a vehicle

Abstract

This application relates to the field of battery technology, providing a battery pack housing, a battery pack, and a vehicle. The battery pack housing is used for mounting on a battery pack, and the battery pack is used for connecting to a vehicle chassis. The battery pack housing includes a shell and a protrusion. The protrusion is connected to the impact-prone edge of the shell. When the battery pack with the housing is mounted on the vehicle chassis, the impact-prone edge is the edge of the shell facing away from the vehicle's passenger compartment, and the protrusion protrudes from the impact-prone edge in the direction away from the passenger compartment. This allows the shell to protect the battery cell modules inside. The protrusion enhances the rigidity of the impact-prone edge of the battery pack, making it less prone to deformation. When a vehicle equipped with this battery pack travels on uneven roads, obstacles on the road will preferentially impact the protrusion instead of directly impacting the impact-prone edge, thus protecting the edge and improving the safety of the battery pack.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a battery pack casing, a battery pack, and a vehicle. Background Technology

[0002] The battery pack of an electric vehicle is typically installed under the chassis, and its shape is generally rectangular. When an electric vehicle travels on uneven roads, the chassis vibrates frequently, causing the battery pack to vibrate frequently as well. This means that the front and bottom corners of the battery pack are most vulnerable to impacts from obstacles when the vehicle is moving forward, and the rear and bottom corners are most vulnerable when the vehicle is reversing. Because the contact area at the corners is small, the pressure is greater, resulting in stress concentration. Consequently, the front and rear bottom corners of the battery pack are most prone to deformation and damage, thus reducing the battery pack's safety. Utility Model Content

[0003] This application provides a battery pack housing, a battery pack, and a vehicle. The battery pack housing is used for mounting on the battery pack, and the battery pack is used for connecting to the vehicle chassis. The battery pack housing includes a shell and a protrusion. The protrusion is connected to the impact-prone edge of the shell. When the battery pack with the housing is mounted on the vehicle chassis, the impact-prone edge is the edge of the shell facing away from the vehicle's passenger compartment. The protrusion protrudes from the impact-prone edge in a direction away from the passenger compartment. This protrusion enhances the rigidity of the impact-prone edge of the battery pack, making it less prone to deformation. When a vehicle equipped with this battery pack travels on uneven roads, obstacles on the road will preferentially impact the protrusion instead of directly impacting the impact-prone edge, thus protecting the edge and making it less prone to deformation. Therefore, the safety of the battery pack is improved.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] In a first aspect, this application provides a battery pack housing for mounting on a battery pack, the battery pack for connecting to a vehicle chassis, the battery pack housing comprising: a housing and a protrusion. The protrusion is connected to a high-impact edge of the housing; when the battery pack having the battery pack housing is mounted on the vehicle chassis, the high-impact edge is the edge of the housing facing away from the vehicle's passenger compartment, and the protrusion protrudes from the high-impact edge in a direction facing away from the vehicle's passenger compartment.

[0006] Optionally, the number of protrusions is at least two, and the at least two protrusions are spaced apart along the impact-prone edge.

[0007] Optionally, the number of protrusions is two; when the battery pack with the battery pack housing is connected to the vehicle chassis, the two protrusions are arranged opposite each other along the direction from the front to the rear of the vehicle.

[0008] Optionally, the housing includes multiple side beams and a bottom plate; the multiple side beams are connected end to end along the edge of the bottom plate and together with the bottom plate form a battery receiving cavity;

[0009] The battery housing cavity is used to accommodate the battery cell module; the edge of the base plate facing away from the surface of the battery housing cavity is the impact-prone edge.

[0010] The protrusion is a strip-shaped component; the strip-shaped component extends along the easily impacted edge.

[0011] Optionally, the protrusion includes a folding plate, the folding plate including a first connecting plate and a second connecting plate connected to each other, the plate surfaces of the first connecting plate and the second connecting plate intersecting;

[0012] The first connecting plate is connected to the outer side of the frame beam, and the second connecting plate is connected to the impact-prone edge.

[0013] Optionally, the outer side of the frame beam is provided with a wire socket; the first connecting plate is provided with a first clearance notch on the side opposite to the second connecting plate, the first clearance notch being used to avoid the wire socket;

[0014] The battery pack housing includes a first buffer layer and a first heat exchange plate; both the first buffer layer and the first heat exchange plate are located within the battery housing cavity; the first buffer layer is sandwiched between the first heat exchange plate and the base plate.

[0015] Optionally, the protrusion includes a flat plate, the side of which is connected to the impact-prone edge; the surface of the flat plate intersects with the surface of the impact-prone edge.

[0016] Optionally, the outer side of the frame beam is provided with a wire socket; the side of the flat plate away from the easily impacted edge is provided with a second clearance notch, which is used to avoid the wire socket;

[0017] The battery pack housing includes a second buffer layer, a second heat exchange plate, and a connector; the second buffer layer is sandwiched between the second heat exchange plate and the base plate;

[0018] Both the base plate and the second heat exchange plate have connecting holes on their edges; the connector passes through the connecting holes in the base plate and the second heat exchange plate, and is threadedly connected to the frame beam.

[0019] Secondly, this application provides a battery pack, the battery pack including the battery pack shell and the cell module as described in any of the first aspects above, the cell module being located within the battery receiving cavity of the battery pack shell.

[0020] Thirdly, this application provides a vehicle, the vehicle including a vehicle chassis and the battery pack described in the second aspect above; the battery pack is connected to the vehicle chassis.

[0021] Compared with the prior art, the beneficial effects of this application are at least as follows:

[0022] Since the battery pack housing is used to install the battery pack, and the battery pack is used to connect to the vehicle chassis, the battery pack housing includes a shell, which can protect the battery cell modules inside the shell.

[0023] The battery pack casing also includes protrusions connected to the impact-prone edge of the casing. When the battery pack with this casing is installed on a vehicle chassis, the impact-prone edge is the edge of the casing facing away from the vehicle's passenger compartment, and the protrusions extend from this edge in the direction away from the passenger compartment. This protrusion enhances the rigidity of the impact-prone edge, making it less prone to deformation. When a vehicle equipped with this battery pack travels on uneven roads, obstacles will preferentially impact the protrusions rather than directly impacting the impact-prone edge, thus protecting it and reducing its deformation. This improves the safety of the battery pack. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 An exploded view of a battery pack casing provided in an embodiment of this application;

[0026] Figure 2 This is a structural diagram of the battery pack casing when viewed from a direction perpendicular to the impact-prone edge;

[0027] Figure 3 for Figure 1 Schematic diagram of the structure of the central protrusion;

[0028] Figure 4 An exploded view of another battery pack casing provided in an embodiment of this application;

[0029] Figure 5for Figure 4 Schematic diagram of the structure of the central protrusion;

[0030] Figure 6 This is a structural schematic diagram of a vehicle provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100-Battery pack casing, 110-Casing, 111-Easily impacted edge, 112-Frame beam, 1121-Wire connector, 113-Base plate, 114-Battery housing cavity, 115-First reinforcing beam, 116-Second reinforcing beam, 120-Protrusion, 121-Folded plate, 1211-First connecting plate, 1212-Second connecting plate, 1213-First clearance notch, 122-Flat plate, 1221-Second clearance notch, 130-First buffer layer, 131-First buffer component, 140-First heat exchange plate, 141-Sub-liquid cooling plate, 150-Second buffer layer, 151-Second buffer component, 160-Second heat exchange plate, 170-Connector, 200-Battery pack, 300-Vehicle, 310-Vehicle chassis. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] The battery pack of an electric vehicle is typically installed under the chassis and is generally rectangular in shape. When an electric vehicle travels on uneven roads, the chassis vibrates frequently, causing the battery pack to vibrate frequently as well. This means that the front and bottom corners of the battery pack are most vulnerable to impacts from obstacles when the vehicle is moving forward, and the rear and bottom corners are most vulnerable when the vehicle is reversing. Because the contact area at the corners is small, the pressure is greater, resulting in stress concentration. Consequently, the front and rear bottom corners of the battery pack are most prone to deformation and damage, thus reducing the safety of the battery pack.

[0035] To address the aforementioned technical problems, the battery pack housing provided by this utility model solves these problems by providing protrusions on the impact-prone edges. Specifically, the battery pack housing is used to install on the battery pack, which is connected to the vehicle chassis. The battery pack housing includes a shell that protects the internal battery cell modules.

[0036] The battery pack casing also includes protrusions connected to the impact-prone edge of the casing. When the battery pack with the casing is installed on the vehicle chassis, the impact-prone edge is the edge of the casing facing away from the vehicle's passenger compartment. The protrusions extend from this edge in the direction away from the passenger compartment. This protrusion enhances the rigidity of the impact-prone edge, making it less prone to deformation. When a vehicle equipped with this battery pack travels on uneven roads, obstacles will preferentially impact the protrusions rather than directly impacting the impact-prone edge, thus protecting it and reducing its deformation. This improves the safety of the battery pack.

[0037] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.

[0038] The following provides a detailed description of the specific structure of the battery pack casing and various possible implementation methods.

[0039] Figure 1 This is an exploded view of a battery pack casing 100 provided in an embodiment of this application. Figure 2 This is a structural diagram of the battery pack casing 100 viewed along a direction perpendicular to the impact-prone edge 111. Figure 3 for Figure 1 Schematic diagram of the structure of the central protrusion 120. Figure 6 This is a structural schematic diagram of a vehicle 300 provided in an embodiment of this application.

[0040] See Figure 1 , Figure 2 , Figure 3 and Figure 6 The battery pack housing 100 is used to mount the battery pack 200, which is used to connect to the vehicle chassis 310. The battery pack housing 100 includes a housing 110 and a protrusion 120. The protrusion 120 is connected to the impact-prone edge 111 of the housing 110. When the battery pack 200 with the battery pack housing 100 is mounted on the vehicle chassis 310, the impact-prone edge 111 is the edge of the housing 110 facing away from the driver's compartment of the vehicle 300, and the protrusion 120 protrudes from the impact-prone edge 111 in the direction facing away from the driver's compartment of the vehicle 300.

[0041] In this embodiment, the battery pack housing 100 is used to install on the battery pack 200, and the battery pack 200 is used to connect to the vehicle chassis 310. The battery pack housing 100 includes a shell 110, which can protect the battery cell module inside the shell 110.

[0042] Because the battery pack housing 100 also includes a protrusion 120 connected to the impact-prone edge 111 of the housing 110, when the battery pack 200 with the battery pack housing 100 is installed on the vehicle chassis 310, the impact-prone edge 111 is the edge of the housing 110 facing away from the passenger compartment of the vehicle 300, and the protrusion 120 protrudes from the impact-prone edge 111 in the direction facing away from the passenger compartment of the vehicle 300. Thus, the protrusion 120 enhances the rigidity of the impact-prone edge 111 of the battery pack 200, making the impact-prone edge 111 less prone to deformation. When the vehicle 300 with the battery pack 200 is traveling on uneven roads, obstacles on the road will preferentially impact the protrusion 120 instead of directly impacting the impact-prone edge 111, thereby protecting the impact-prone edge 111 and making it less prone to deformation. Therefore, the safety of the battery pack 200 is improved.

[0043] It should be noted that the material of the protrusion 120 can be steel or alloy, or other materials with high strength. This application embodiment does not limit this.

[0044] It should also be noted that the connection between the protrusion 120 and the impact-prone edge 111 can be welding, bolting, or other connection methods, and this application embodiment does not limit this.

[0045] Optionally, in some embodiments, see Figure 1 , Figure 2 , Figure 3 and Figure 6 The number of protrusions 120 is at least two, and at least two protrusions 120 are spaced apart along the impact-prone edge 111.

[0046] In this way, at least two protrusions 120 can protect the housing 110 in at least two sections of the impact-prone edge 111, thereby increasing the protection range of the impact-prone edge 111.

[0047] The more protrusions 120 there are, the larger the protection range for the impact-prone edge 111, the better the protection effect for the casing 110, and the higher the safety of the battery pack 200.

[0048] It should be noted that the number of the above-mentioned protrusions 120 can be two, three or more, and this application embodiment does not limit this.

[0049] Optionally, in some embodiments, see Figure 1 , Figure 2 , Figure 3 and Figure 6 There are two protrusions 120; when the battery pack 200 with the battery pack housing 100 is connected to the vehicle chassis 310, the two protrusions 120 are arranged opposite each other in the direction from the front to the rear of the vehicle.

[0050] Because the front bottom edge of the battery pack 200 is most vulnerable to impact from ground obstacles when the electric vehicle is moving forward, and the rear bottom edge of the battery pack 200 is most vulnerable to impact from ground obstacles when the electric vehicle is reversing, the two protrusions 120 are arranged opposite each other along the direction from the front to the rear of the vehicle. This can effectively protect the impact-prone edges 111 at the front and rear of the housing 110.

[0051] It should be noted that the probability of impact on the parts of the easily impacted edge 111 other than the front and rear ends is relatively small, so the protrusion 120 does not need to be set.

[0052] Optionally, in some embodiments, see Figure 1 , Figure 2 , Figure 3 and Figure 6 The housing 110 includes multiple side beams 112 and a base plate 113; the multiple side beams 112 are connected end to end along the edge of the base plate 113, and together with the base plate 113, form a battery receiving cavity 114. The battery receiving cavity 114 is used to receive the battery cell module; the edge of the base plate 113 facing away from the surface of the battery receiving cavity 114 is a high-impact edge 111. The protrusion 120 is a strip-shaped member; the strip-shaped member extends along the high-impact edge 111.

[0053] In this embodiment, the housing 110 includes multiple side beams 112 and a base plate 113. The multiple side beams 112 are connected end to end along the edge of the base plate 113 and together with the base plate 113, they form a battery receiving cavity 114, which is used to accommodate the battery cell module. This constitutes the basic structure of the housing 110, which can protect the battery cell module inside the housing 110.

[0054] Since the edge of the base plate 113 facing away from the battery housing cavity 114 is the impact-prone edge 111, and the protrusion 120 is a strip-shaped member extending along the impact-prone edge 111, the protrusion 120 can be distributed along the extension direction of the impact-prone edge 111, thereby more comprehensively covering the impact-prone edge 111 and better protecting the housing 110, thus further improving the safety of the battery pack 200.

[0055] It should be noted that the aforementioned protrusion 120 is made of high-strength steel with a yield strength of not less than 340 MPa. The aforementioned bottom guard plate is made of hot-formed steel with a yield strength of not less than 950 MPa.

[0056] Optionally, in some embodiments, see Figure 1 , Figure 2 , Figure 3 and Figure 6 The protrusion 120 includes a folded plate 121, which includes a first connecting plate 1211 and a second connecting plate 1212 connected to each other. The surfaces of the first connecting plate 1211 and the second connecting plate 1212 intersect. The first connecting plate 1211 is connected to the outer side of the frame beam 112, and the second connecting plate 1212 is connected to the impact-prone edge 111.

[0057] In this embodiment, the surfaces of the first connecting plate 1211 and the second connecting plate 1212 intersect. The first connecting plate 1211 is connected to the outer side of the frame beam 112, and the second connecting plate 1212 is connected to the impact-prone edge 111. Thus, at the corner of the impact-prone edge 111, the exposed surfaces on both sides of the edge can be protected by the folding plate 121. Furthermore, the protrusion 120 can further enhance the rigidity of the impact-prone edge 111 of the battery pack 200, making the impact-prone edge 111 less prone to deformation, thereby further improving the safety of the battery pack 200.

[0058] It should be noted that the surfaces of the first connecting plate 1211 and the second connecting plate 1212 can be perpendicular to each other or form an angle of other degrees. This application embodiment does not limit this. When the surfaces of the first connecting plate 1211 and the second connecting plate 1212 are perpendicular to each other, the protrusion 120 can be an angle steel.

[0059] Optionally, in some embodiments, see Figure 1 , Figure 2 , Figure 3 and Figure 6 The outer side of the frame beam 112 is provided with a wire socket 1121; the first connecting plate 1211 is provided with a first clearance notch 1213 on the side opposite to the second connecting plate 1212, the first clearance notch 1213 is used to avoid the wire socket 1121. The battery pack shell 100 includes a first buffer layer 130 and a first heat exchange plate 140; the first buffer layer 130 and the first heat exchange plate 140 are both located in the battery receiving cavity 114; the first buffer layer 130 is sandwiched between the first heat exchange plate 140 and the bottom plate 113.

[0060] The base plate 113 and the frame beam 112 are fixedly connected together by welding. Thus, when the battery pack 200 is connected to the vehicle chassis 310, the internal cell modules of the battery pack 200 cannot be replaced by removing the base plate 113. Therefore, in this case, the battery pack casing 100 is suitable for power battery systems where the cell modules cannot be replaced by removing the base plate 113.

[0061] In this embodiment, a wire insertion port 1121 is provided on the outer side of the frame beam 112. This wire insertion port 1121 is used to connect power transmission wires, thereby facilitating the battery pack 200 to output the stored electrical energy. A first clearance notch 1213 is provided on the side of the first connecting plate 1211 opposite to the second connecting plate 1212, which is used to avoid the wire insertion port 1121. This protects the impact-prone edge 111 without affecting the normal use of the wire insertion port 1121.

[0062] The battery pack casing 100 includes a first buffer layer 130 and a first heat exchange plate 140, both located within the battery housing cavity 114. The first buffer layer 130 provides cushioning protection for the battery cell modules inside the casing 110 when the battery pack 200 vibrates, ensuring the internal battery cell modules are not damaged and thus improving the stability of the battery pack 200. The first heat exchange plate 140 regulates the temperature of the battery cell modules. Specifically, when the temperature of the battery cell modules is high, it absorbs heat from the battery cell modules, thus dissipating heat; when the temperature of the battery cell modules is low, it releases heat, thus heating the battery cell modules.

[0063] Since the first buffer layer 130 is sandwiched between the first heat exchange plate 140 and the base plate 113, the battery cell module can directly contact the first heat exchange plate 140, which facilitates heat exchange between the battery cell module and the first heat exchange plate 140, thus improving the heat exchange efficiency of the first heat exchange plate 140.

[0064] It should be noted that the aforementioned first buffer layer 130 includes a plurality of spaced-apart first buffer members 131, so that the deformation of the plurality of first buffer members 131 does not affect each other. This allows the buffering effect on various parts of the first heat exchange plate 140 to be more uniform. The material of the first buffer member 131 can be foam or rubber, or other types of flexible materials, and this application embodiment does not limit this.

[0065] It should also be noted that the aforementioned first heat exchange plate 140 is a split liquid cooling plate. Specifically, the split liquid cooling plate includes two equally sized sub-liquid cooling plates 141, which are spliced ​​together along the plate surface direction to form the split liquid cooling plate. Bolts are fixedly connected to the side of the base plate 113 facing the battery housing cavity 114, and connecting holes are provided on the edge of the split liquid cooling plate. The bolts pass through the connecting holes to fix the split liquid cooling plate to the base plate 113, thereby preventing the split liquid cooling plate from moving relative to the base plate 113 along the plate surface direction, thus enhancing the structural stability of the battery pack 200.

[0066] It should also be noted that the aforementioned housing 110 further includes a first reinforcing beam 115 located within the battery receiving cavity 114. The two ends of the first reinforcing beam 115 are respectively welded to the inner walls of two opposing frame beams 112. The first reinforcing beam 115 can increase the overall rigidity of the housing 110, thus making the housing 110 less prone to deformation and further improving the safety of the battery pack 200.

[0067] Optionally, in some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6 The protrusion 120 includes a flat plate 122, the side of which is connected to the impact-prone edge 111; the surface of the flat plate 122 intersects with the surface of the impact-prone edge 111.

[0068] In this embodiment, the surface of the planar plate 122 intersects with the surface where the impact-prone edge 111 is located, meaning the planar plate 122 protrudes from the surface where the impact-prone edge 111 is located. When the vehicle 300 equipped with the battery pack 200 travels on uneven roads, the lower side of the planar plate 122 is closest to the ground. This causes obstacles on the road to preferentially impact the lower side of the planar plate 122, rather than directly impacting the impact-prone edge 111, thus protecting the impact-prone edge 111. Because the planar plate 122 has high stiffness along its surface direction, it is less prone to deformation, making the impact-prone edge 111 less likely to deform, further improving the safety of the battery pack 200.

[0069] Optionally, in some embodiments, see Figure 2 , Figure 4 , Figure 5 and Figure 6The outer side of the frame beam 112 is provided with a wire insertion port 1121; the side of the flat plate 122 near the impact-prone edge 111 is provided with a second clearance notch 1221, which is used to avoid the wire insertion port 1121. The battery pack housing 100 includes a second buffer layer 150, a second heat exchange plate 160, and a connector 170; the second buffer layer 150 is sandwiched between the second heat exchange plate 160 and the base plate 113. The edges of the base plate 113 and the second heat exchange plate 160 are provided with connection holes; the connector 170 passes through the connection holes of the base plate 113 and the second heat exchange plate 160, and is threadedly connected to the frame beam 112.

[0070] The flat plate 122 is fixedly connected to the impact-prone edge 111 by welding. The base plate 113 and the side beam 112 are connected by a connector 170, meaning that the base plate 113 and the side beam 112 can be separated when the connector 170 is removed. Thus, when the battery pack 200 is connected to the vehicle chassis 310, the battery cell modules inside the battery pack 200 can be replaced by removing the base plate 113. Therefore, in this case, the battery pack casing 100 is suitable for a power battery system where the battery cell modules can be replaced by removing the base plate 113.

[0071] In this embodiment, a wire insertion port 1121 is provided on the outer side of the frame beam 112. This wire insertion port 1121 is used to connect power transmission wires, thereby facilitating the battery pack 200 to output the stored electrical energy. A second clearance notch 1221 is provided on the side of the flat plate 122 near the impact-prone edge 111, which is used to avoid the wire insertion port 1121. This protects the impact-prone edge 111 without affecting the normal use of the wire insertion port 1121.

[0072] The battery pack casing 100 includes a second buffer layer 150 and a second heat exchange plate 160. The second buffer layer 150 provides cushioning protection for the battery cell modules inside the casing 110 when the battery pack 200 vibrates, ensuring that the internal battery cell modules are not damaged, thus improving the stability of the battery pack 200. The second heat exchange plate 160 can regulate the temperature of the battery cell modules. Specifically, when the temperature of the battery cell modules is high, it can absorb heat from the battery cell modules to dissipate heat; when the temperature of the battery cell modules is low, it can release heat to heat the battery cell modules.

[0073] Since the second buffer layer 150 is sandwiched between the second heat exchange plate 160 and the base plate 113, with the second heat exchange plate 160 located on the side of the second buffer layer 150 closer to the battery housing cavity 114, this allows the battery cell module to directly contact the second heat exchange plate 160, facilitating heat exchange between the battery cell module and the second heat exchange plate 160, thus improving the heat exchange efficiency of the second heat exchange plate 160.

[0074] Since the edges of the base plate 113 and the second heat exchange plate 160 are provided with connection holes, the connector 170 passes through the connection holes of the base plate 113 and the second heat exchange plate 160, and is threadedly connected to the frame beam 112. This makes the connection between the base plate 113, the second heat exchange plate 160 and the frame beam 112 more secure, thereby increasing the overall rigidity of the housing 110 and further improving the safety of the battery pack 200.

[0075] It should be noted that the aforementioned second buffer layer 150 includes two spaced-apart second buffer members 151, so that the two second buffer members 151 do not affect each other when they deform. This allows the buffering effect on various parts of the second heat exchange plate 160 to be more uniform. The material of the second buffer member 151 can be foam or rubber, or other types of flexible materials; this application embodiment does not limit this.

[0076] It should also be noted that the second heat exchange plate 160 is an integral liquid-cooled plate. The connecting member 170 can be a bolt or rivet, or other types of connecting member 170, which is not limited in this embodiment.

[0077] It should also be noted that the aforementioned housing 110 further includes a second reinforcing beam 116 located within the battery receiving cavity 114. The two ends of the second reinforcing beam 116 are respectively welded to the inner walls of two opposing frame beams 112. This second reinforcing beam 116 increases the overall rigidity of the housing 110, making the housing 110 less prone to deformation and thus further improving the safety of the battery pack 200.

[0078] It should also be noted that the surfaces of the protrusion 120 and the base plate 113 facing away from the battery housing 114 are both coated with a PVC (Polyvinyl Chloride) coating. This PVC coating can reduce the impact and scratching effect of obstacles on the protrusion 120 and the base plate 113, thus further protecting the housing 110. The thickness of this PVC coating is greater than 0.8 mm and less than 1 mm.

[0079] See Figure 1 , Figure 2 , Figure 3 and Figure 6 This application embodiment also provides a battery pack 200, which includes any of the above-described battery pack shell 100 and a cell module, with the cell module located in the battery receiving cavity 114 of the battery pack shell 100.

[0080] In this embodiment, the battery pack housing 100 is used to install on the battery pack 200, and the battery pack 200 is used to connect to the vehicle chassis 310. The battery pack housing 100 includes a shell 110, which can protect the battery cell module inside the shell 110.

[0081] Because the battery pack housing 100 also includes a protrusion 120 connected to the impact-prone edge 111 of the housing 110, when the battery pack 200 with the battery pack housing 100 is installed on the vehicle chassis 310, the impact-prone edge 111 is the edge of the housing 110 facing away from the passenger compartment of the vehicle 300, and the protrusion 120 protrudes from the impact-prone edge 111 in the direction facing away from the passenger compartment of the vehicle 300. Thus, the protrusion 120 enhances the rigidity of the impact-prone edge 111 of the battery pack 200, making the impact-prone edge 111 less prone to deformation. When the vehicle 300 with the battery pack 200 is traveling on uneven roads, obstacles on the road will preferentially impact the protrusion 120 instead of directly impacting the impact-prone edge 111, thereby protecting the impact-prone edge 111 and making it less prone to deformation. Therefore, the safety of the battery pack 200 is improved.

[0082] See Figure 1 , Figure 2 , Figure 3 and Figure 6 This application embodiment also provides a vehicle 300, which includes a vehicle chassis 310 and the aforementioned battery pack 200, the battery pack 200 being connected to the vehicle chassis 310.

[0083] In this embodiment, the protrusion 120 enhances the rigidity of the impact-prone edge 111 of the battery pack 200, making the impact-prone edge 111 less prone to deformation. When the vehicle 300 equipped with this battery pack 200 travels on uneven roads, obstacles on the road will preferentially impact the protrusion 120 instead of directly impacting the impact-prone edge 111, thus protecting the impact-prone edge 111 and making it less prone to deformation. Therefore, the battery pack 200 has high safety. When the battery pack 200 is connected to the vehicle chassis 310, it can improve the safety of the vehicle 300.

[0084] It should be noted that the aforementioned vehicle 300 is an electric vehicle 300 or a hybrid electric vehicle 300. Specifically, it can be a sedan, SUV, or bus, or other types of vehicles 300. This application embodiment does not limit this.

[0085] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0086] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0087] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something,” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “above something” or “on top of something,” but also “on something” or “on top of something” without an intermediate feature or layer therebetween, i.e., directly on something.

[0088] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations rotated 90° or be in other orientations, and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery pack housing, characterized by, For mounting on a battery pack, the battery pack being connected to a vehicle chassis (310), the battery pack housing comprising: Shell (110); A protrusion (120) is connected to the impact-prone edge (111) of the housing (110); when the battery pack having the battery pack housing is installed on the vehicle chassis (310), the impact-prone edge (111) is the edge of the housing (110) facing away from the vehicle cabin, and the protrusion (120) protrudes from the impact-prone edge (111) in the direction facing away from the vehicle cabin.

2. The battery pack enclosure of claim 1, wherein, The number of the protrusions (120) is at least two, and at least two of the protrusions (120) are spaced apart along the impact-prone edge (111).

3. The battery pack enclosure of claim 2, wherein, The number of the protrusions (120) is two; when the battery pack with the battery pack shell is connected to the vehicle chassis (310), the two protrusions (120) are arranged opposite each other in the direction from the front to the rear of the vehicle.

4. The battery pack enclosure of any one of claims 1-3, wherein, The housing (110) includes a plurality of side beams (112) and a bottom plate (113); the plurality of side beams (112) are connected end to end along the edge of the bottom plate (113) and together with the bottom plate (113) form a battery receiving cavity (114); The battery housing cavity (114) is used to accommodate the battery cell module; the edge of the base plate (113) facing away from the surface of the battery housing cavity (114) is the impact-prone edge (111); The protrusion (120) is a strip; the strip extends along the impact-prone edge (111).

5. The battery pack casing according to claim 4, characterized in that, The protrusion (120) includes a folding plate (121), which includes a first connecting plate (1211) and a second connecting plate (1212) connected to each other, wherein the surface of the first connecting plate (1211) and the surface of the second connecting plate (1212) intersect. The first connecting plate (1211) is connected to the outer side of the frame beam (112), and the second connecting plate (1212) is connected to the impact-prone edge (111).

6. The battery pack casing according to claim 5, characterized in that, The outer side of the frame beam (112) is provided with a wire socket (1121); the first connecting plate (1211) is provided with a first clearance notch (1213) on the side away from the second connecting plate (1212), and the first clearance notch (1213) is used to avoid the wire socket (1121); The battery pack housing includes a first buffer layer (130) and a first heat exchange plate (140); the first buffer layer (130) and the first heat exchange plate (140) are both located in the battery receiving cavity (114); the first buffer layer (130) is sandwiched between the first heat exchange plate (140) and the base plate (113).

7. The battery pack casing according to claim 4, characterized in that, The protrusion (120) includes a flat plate (122), the side of which is connected to the impact-prone edge (111); the surface of the flat plate (122) intersects with the surface of the impact-prone edge (111).

8. The battery pack casing according to claim 7, characterized in that, The outer side of the frame beam (112) is provided with a wire socket (1121); the side of the flat plate (122) away from the collision edge (111) is provided with a second clearance notch (1221), which is used to avoid the wire socket (1121); The battery pack housing includes a second buffer layer (150), a second heat exchange plate (160), and a connector (170); the second buffer layer (150) is sandwiched between the second heat exchange plate (160) and the base plate (113); The edges of the base plate (113) and the second heat exchange plate (160) are provided with connection holes; the connector (170) passes through the connection holes of the base plate (113) and the second heat exchange plate (160), and is threadedly connected to the frame beam (112).

9. A battery pack, characterized in that, include: The battery pack casing according to any one of claims 1-8; A cell module, wherein the cell module is located within the battery housing cavity (114) of the battery pack casing.

10. A vehicle, characterized in that, include: Vehicle chassis (310); The battery pack as claimed in claim 9; The battery pack is connected to the vehicle chassis (310).

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