Battery shell and vehicle

Abstract

The utility model provides a battery shell and vehicle relates to battery pack technical field, battery shell includes frame, the cross section structure of frame includes first cross section, second cross section and third cross section, first cross section and third cross section are geometrical structure, the second cross section is linear structure, the third cross section is linear structure, the first cross section is linear structure, the second cross section is linear structure, and the third cross section is linear structure. The first fracture surface and the third fracture surface are connected with the two ends of the second fracture surface respectively. Therefore, the frame can be conveniently manufactured by adopting a rolling forming process, so that the production process of the frame and even the battery shell can be simplified while the production quality is ensured, the weight of the frame formed by rolling is light, the overall weight of the battery shell can be reduced, and the light-weight design of a new energy vehicle can be conveniently realized.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a battery housing and a vehicle. Background Art

[0002] As the energy source of electric vehicles, the safety and reliability of battery packs are extremely important. The structural component used to support the battery pack, namely the battery shell, has a direct impact on the performance of electric vehicles and the safety of drivers and passengers.

[0003] At present, there are three main types of battery shells for electric vehicles: the first type is made of sheet metal stamping boxes. The production process of battery shells with this structure is relatively mature, but the steel battery shells stamped by sheet metal are too heavy, which is not conducive to the lightweight design of electric vehicles; the second type is a cast aluminum battery shell. The production process of battery shells with this structure is relatively simple, but cast aluminum will produce defects such as pores and pinholes, resulting in poor quality of the battery shell; the third type is welded and assembled from aluminum profiles. The battery shell with this structure has good strength and rigidity, and the cavity design of the aluminum profile has good energy absorption, but there are defects such as a large workload for welding and assembly, it is not easy to ensure airtightness, and the production process is relatively cumbersome. Utility Model Content

[0004] The problem solved by the utility model is: how to optimize the structure of the battery shell so as to make the production process simple, the production quality high and the weight light.

[0005] In order to solve the above problems, the utility model provides a battery housing and a vehicle.

[0006] In a first aspect, the present invention provides a battery housing, comprising a frame, the cross-sectional structure of the frame comprising a first section, a second section, and a third section, the first section and the third section being geometrically shaped, the second section being a linear structure, the first section and the third section being connected to both ends of the second section, respectively.

[0007] Optionally, the first section and the third section are rectangular structures, the first side of the first section and the first side of the third section are respectively connected to the two ends of the second section, and the first side of the first section, the first side of the third section and the second section are located on the same straight line.

[0008] Optionally, the frame includes a first frame and a second frame, both of the first frame and the second frame are L-shaped structures, and the end surfaces of the two free ends of the first frame are respectively fitted and connected to the end surfaces of the two free ends of the second frame to form a rectangular frame structure.

[0009] Optionally, the first frame includes a first side panel, a first connecting portion and a second connecting portion, the cross-sectional structures of the first side panel, the first connecting portion and the second connecting portion are the second section, the first section and the third section respectively, and the first side panel is a continuous plate structure.

[0010] Optionally, the battery housing also includes a liquid cooling plate assembly connected to the frame, the liquid cooling plate assembly includes a flow channel plate and a sealing plate, the flow channel is provided with a cooling channel on the side of the flow channel plate facing away from the frame, the sealing plate is fittedly connected to the flow channel plate and covers the cooling channel to form a cooling circuit, the flow channel plate is provided with a liquid inlet and a liquid outlet on the side facing the frame, and the liquid inlet and the liquid outlet are respectively connected to the cooling channel.

[0011] Optionally, the cooling channel includes a first serpentine channel and a second serpentine channel, the liquid inlet end and the liquid outlet end of the first serpentine channel are respectively connected to the liquid inlet end and the liquid outlet end of the second serpentine channel, the liquid inlet is arranged at the connecting point of the liquid inlet end of the first serpentine channel and the liquid inlet end of the second serpentine channel, and the liquid outlet is arranged at the connecting point of the liquid outlet end of the first serpentine channel and the liquid outlet end of the second serpentine channel.

[0012] Optionally, the liquid cooling plate assembly further includes a module bracket, which is integrally formed with the flow channel plate and is located on a side of the flow channel plate facing the frame, and is used to install a battery module.

[0013] Optionally, the battery housing further includes a seal, and the frame and the liquid cooling plate assembly are sealed and connected via the seal.

[0014] Optionally, a rivet nut is provided at the bottom of the frame, and the frame and the liquid cooling plate assembly are detachably connected at the rivet nut via a threaded fastener.

[0015] Optionally, the battery housing further includes a bracket accessory, which is arranged on a side of the frame and located outside the frame.

[0016] In a second aspect, the present invention provides a vehicle comprising the battery housing as described above.

[0017] The battery housing of the present invention has the following beneficial effects: the liquid cooling plate assembly can be connected to the bottom of the frame to support and cool the battery module installed in the frame. At the same time, by optimizing the cross-sectional structure of the frame, that is, setting the cross-sectional structure of the frame to include a first cross-sectional structure with a geometric shape, a second cross-sectional structure with a linear structure, and a third cross-sectional structure with a geometric shape, and connecting the first cross-sectional structure and the third cross-sectional structure to the two ends of the second cross-sectional structure respectively, the cross-sectional structure of the frame is roughly a cross-sectional structure with two rings at both ends and a single-layer plate in the middle. In this way, it is convenient to manufacture the frame by a roll-forming process, thereby simplifying the production process of the frame and even the battery housing while ensuring production quality. Moreover, the roll-formed frame is lighter in weight, which can reduce the overall weight of the battery housing and facilitate the lightweight design of new energy vehicles. In addition, the first section and the third section are set to a geometric shape structure, so that the frame parts corresponding to the first section and the third section are hollow beam structures, which can reduce the weight while making the frame have higher rigidity and bending resistance; and the second section is set to a straight structure, so that the frame part corresponding to the second section is a single-layer plate structure, which can not only connect the hollow beam structures corresponding to the first section and the third section, but also play a good sealing role. Moreover, the setting of the second section can also increase the height of the frame, thereby expanding the internal space of the battery shell, which is convenient for installing large-capacity battery modules. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the battery housing in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the battery housing in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the frame in the first embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the frame in the second embodiment of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the frame in the embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the exploded structure of the frame in the embodiment of the present utility model;

[0024] Figure 7 This is a schematic structural diagram of the first frame before bending in an embodiment of the present utility model;

[0025] Figure 8 This is a structural diagram of the liquid cooling plate assembly in an embodiment of the present utility model;

[0026] Figure 9 This is a schematic diagram of the exploded structure of the liquid cooling plate assembly in an embodiment of the present utility model;

[0027] Figure 10 This is a structural schematic diagram of another embodiment of the battery housing of the present utility model;

[0028] Figure 11 for Figure 10 Schematic diagram of the explosion structure of the battery shell.

[0029] Description of reference numerals:

[0030] 1. Liquid cooling plate assembly; 11. Sealing plate; 12. Channel plate; 121. Cooling channel; 1211. First serpentine channel; 1212. Second serpentine channel; 122. Liquid inlet; 123. Liquid outlet; 13. Module bracket; 14. Liquid inlet pipe joint; 15. Liquid outlet pipe joint; 2. Frame; 21. First frame; 211. First side panel; 212. First connecting portion; 213. Second connecting portion; 22. Second frame; 221. Second side panel; 222. Three connecting parts; 23, first section; 231, first side of the first section; 232, second side of the first section; 233, third side of the first section, 234, fourth side of the first section; 24, second section; 25, third section; 251, first side of the third section; 252, second side of the third section; 253, third side of the third section, 254, fourth side of the third section; 26, rivet nut; 3, seal; 4, bracket accessories; 41, mounting bracket. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0032] The Z-axis in the accompanying drawings represents the vertical direction, that is, the up-down position, with the positive direction of the Z-axis representing the top and the reverse direction of the Z-axis representing the bottom. The X-axis in the accompanying drawings represents the horizontal direction and is designated as the front-to-back position, with the positive direction of the X-axis representing the front side and the reverse direction of the X-axis representing the rear side. The Y-axis in the accompanying drawings represents the left-to-right position, with the positive direction of the Y-axis representing the left side and the reverse direction of the Y-axis representing the right side. It should also be noted that the aforementioned Z-axis, Y-axis, and X-axis are merely for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0033] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in this utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0035] Combine Figures 1 to 4 As shown, a battery housing provided by an embodiment of the present invention includes a frame 2, the cross-sectional structure of the frame 2 includes a first section 23, a second section 24 and a third section 25, the first section 23 and the third section 25 are geometrically shaped, the second section 24 is a linear structure, and the first section 23 and the third section 25 are respectively connected to the two ends of the second section 24.

[0036] Specifically, the frame 2 is typically an annular structure, such as a rectangle. The space enclosed by the frame and the liquid cooling plate assembly 1 described below is used to accommodate the battery module. Furthermore, the frame 2 can be manufactured by welding, casting, or steel plate roll forming. However, in practical applications, it is generally preferred that the frame 2 be roll-formed from steel plates. Roll-forming the frame 2 can be understood as meaning that the individual frames of the frame 2 are roll-formed from steel plates, and the frames are assembled into the frame 2 by welding. The cross-sectional structure of the frame 2 includes a first section 23, a second section 24, and a third section 25. The first section 23 and the third section 25 can be geometrically shaped structures, such as circular, elliptical, triangular, or rectangular. In practical applications, it is generally preferred that the first section 23 and the third section 25 be rectangular structures, and the second section 24 be a vertically arranged linear structure. That is, the first section 23 and the third section 25 are the sections of the steel plate after being rolled and bent into an annular structure, and the second section 24 is the section of a single-layer plate structure. At the same time, the first section 23 and the third section 25 are connected to the upper and lower ends of the second section 24 respectively. The first section 23 and the third section 25 can be connected to the end surfaces of the second section 24 respectively. Figure 3 As shown, the first section 23 and the third section 25 may be connected to the side walls at both ends of the second section 24, respectively. Figure 4 As shown, the rolled cross-section of the frame 2 is roughly a cross-sectional structure with two rings at both ends connected by a single-layer plate in the middle. When the first section 23 and the third section 25 are connected to the end faces of the second section 24, the vertical edges of the first section 23 and the third section 25 can be connected to the second section 24, or the middle position between the horizontal edges of the first section 23 and the third section 25 can be connected to the second section 24. In actual applications, the choice can be made as needed and is not specifically limited here.

[0037] The battery shell in this embodiment can be obtained by optimizing the cross-sectional structure of the frame 2, that is, the cross-sectional structure of the frame 2 is set to include a first section 23 with a geometric shape structure, a second section 24 with a linear structure and a third section 25 with a geometric shape structure, and the first section 23 and the third section 25 are respectively connected to the two ends of the second section 24, so that the cross-section of the frame 2 is roughly a cross-sectional structure with two rings at both ends and a single-layer plate in the middle. In this way, not only the structure of the frame 2 can be simplified, but also the frame 2 has a higher structural strength. At the same time, it is also convenient to manufacture the frame 2 by a roll-forming process, so that the production process of the frame 2 and even the battery shell can be simplified while ensuring production quality. Moreover, the roll-formed frame 2 is lighter in weight, which can reduce the overall weight of the battery shell, making it convenient for new energy vehicles to achieve lightweight design. In addition, the first section 23 and the third section 25 are set to a geometric structure, so that the parts of the frame 2 corresponding to the first section 23 and the third section 25 are hollow beam structures, which can reduce the weight while making the frame 2 have higher rigidity and bending resistance; and the second section 24 is set to a straight structure, so that the part of the frame 2 corresponding to the second section 24 is a single-layer plate structure, which can not only realize the connection of the hollow beam structures corresponding to the first section 23 and the third section 25, but also play a good sealing role. Moreover, the setting of the second section 24 can also increase the height of the frame 2, thereby expanding the internal space of the battery shell, which is convenient for installing large-capacity battery modules.

[0038] Optionally, combined Figure 3 and Figure 4 As shown, the first section 23 and the third section 25 are rectangular structures, the first side 231 of the first section 23 and the first side 251 of the third section 25 are respectively connected to the two ends of the second section 24, and the first side 231 of the first section 23, the first side 251 of the third section 25 and the second section 24 are located on the same straight line.

[0039] Specifically, the first section 23 includes a first side 231, a second side 232, a third side 233 and a fourth side 234 connected in sequence from end to end to form a rectangle, and the third section 25 also includes a first side 251, a second side 252, a third side 253 and a fourth side 254 connected in sequence from end to end to form a rectangle, wherein the first side 231 and the third side 233 of the first section 23 are vertically arranged, the second side 232 and the fourth side 234 of the first section 23 are horizontally arranged, the first side 251 and the third side 253 of the third section 25 are vertically arranged, and the second side 252 and the fourth side 254 of the third section 25 are horizontally arranged. At the same time, the first side 231 of the first section 23 and the first side 251 of the third section 25 are respectively connected to the two ends of the second section 24, and the first side 231 of the first section 23, the first side 251 of the third section 25 and the second section 24 are located on the same straight line, so that the first side 231 of the first section 23 and the first side 251 of the third section 25 are respectively connected to the end faces at both ends of the second section 24, and the first section 23 and the third section 25 are located on the same side of the second section 24, that is, the parts of the frame 2 corresponding to the first section 23 and the third section 25 are located on the inner side (that is, the side facing the internal space of the frame 2) or the outer side (that is, the side facing the external space of the frame 2) of the part of the frame 2 corresponding to the second section 24. In actual applications, it is usually preferred that the parts of the frame 2 corresponding to the first section 23 and the third section 25 are located on the inner side of the part of the frame 2 corresponding to the second section 24 to ensure the flatness of the outer surface of the frame 2.

[0040] In this optional embodiment, by configuring the first section 23 and the third section 25 as a rectangular structure, the roll-formed cross-section of the frame 2 is roughly formed into a U-shaped cross-section with a single-layer plate in the middle. This further improves the convenience of roll-forming. Furthermore, by connecting the first edge 231 of the first section 23 and the first edge 251 of the third section 25 to the two ends of the second section 24, respectively, and aligning the first edge 231 of the first section 23, the first edge 251 of the third section 25, and the second section 24 on the same straight line, the number of bends during the roll-forming process can be reduced, thereby improving roll-forming efficiency.

[0041] Optionally, combined Figures 5 to 7 As shown, the frame 2 includes a first frame 21 and a second frame 22. The first frame 21 and the second frame 22 are both L-shaped structures, and the end surfaces of the two free ends of the first frame 21 are respectively fitted and connected with the end surfaces of the two free ends of the second frame 22 to form a rectangular frame structure.

[0042] In this optional embodiment, the frame 2 is formed of two L-shaped frames joined together by welding to form a rectangular frame structure, wherein the two L-shaped frames are respectively a first frame 21 and a second frame 22. The end surface shapes of the two free ends of the first frame 21 and the end surface shapes of the two free ends of the second frame 22 are similar to the cross-sectional structure of the frame 2. Moreover, the first frame 21 and the second frame 22 are usually bent to form an L shape. When producing the frame 2, a rolling process is usually first used to manufacture two long strip frames, such as Figure 7 As shown, the two long strip frames are then bent into L-shaped frames, as shown Figure 6 As shown, the two L-shaped frames are finally welded into a rectangular frame structure. In this way, the bending process can be used to replace part of the welding, which not only reduces the welding work in the production process of the frame 2, but also reduces the consumption of welding rods, reduces production costs, and at the same time, improves the overall sealing of the frame 2.

[0043] Optionally, combined Figure 6 As shown, the first frame 21 includes a first side panel 211, a first connecting portion 212 and a second connecting portion 213. The cross-sectional structures of the first side panel 211, the first connecting portion 212 and the second connecting portion 213 are respectively the second section 24, the first section 23 and the third section 25, and the first side panel 211 is a continuous plate structure.

[0044] In this optional embodiment, since the first frame 21 is an L-shaped frame, the first side panel 211, the first connecting portion 212 and the second connecting portion 213 of the first frame 21 are also L-shaped structures. Among them, the first side panel 211 is usually formed into an L-shaped structure by bending a whole plate, so that the first side panel 211 is a continuous plate structure, that is, the first side panel 211 is not welded into an L-shaped structure by two flat plates, but is formed into an L-shaped structure by bending. In this way, not only can the welding operation be further reduced and the production efficiency be improved, but the sealing of the frame 2 can also be further improved, thereby improving the sealing of the battery shell. The first connecting portion 212 is usually welded into an L-shaped structure by two straight-line portions, so as to realize the production and manufacturing of the first frame 21. In addition, the structure of the second connecting portion 213 is the same as that of the first connecting portion 212, and will not be repeated here.

[0045] Further, combined with Figure 6 As shown, the second frame 22 includes a second side plate 221 , a third connection portion 222 and a fourth connection portion. Moreover, the structure of the second frame 22 is the same as that of the first frame 21 , which will not be described again.

[0046] Optionally, combined Figure 8 and Figure 9As shown, the battery housing also includes a liquid cooling plate assembly 1 connected to the frame 2. The liquid cooling plate assembly 1 includes a flow channel plate 12 and a sealing plate 11. A cooling channel 121 is provided on the side of the flow channel plate 12 facing away from the frame 2. The sealing plate 11 is fitted and connected to the flow channel plate 12 and covers the cooling channel 121 to form a cooling circuit. A liquid inlet 122 and a liquid outlet 123 are provided on the side of the flow channel plate 12 facing the frame 2. The liquid inlet 122 and the liquid outlet 123 are respectively connected to the cooling channel 121.

[0047] In this optional embodiment, the liquid cooling plate assembly 1 is usually installed at the bottom of the frame 2, and the space enclosed by the liquid cooling plate assembly 1 is used to accommodate the battery module. In this way, the liquid cooling plate assembly 1 can be used to support and cool the battery module installed in the frame 2. In addition, the flow channel plate 12 of the liquid cooling plate assembly 1 is usually an integrally cast plate structure, which is processed into the cooling channel 121, the liquid inlet 122 and the liquid outlet 123 by casting; the sealing plate 11 is usually a flat plate structure, which is usually connected to the flow channel plate 12 by welding to close the cooling channel 121 on the flow channel plate 12 into a cooling circuit. In this way, it is convenient to add coolant to the cooling circuit from the liquid inlet 122, and let the coolant flow out from the liquid outlet 123 for circulation, so that the coolant flowing in the cooling circuit is used to cool the battery module, so as to achieve the cooling effect of the liquid cooling plate assembly 1 on the battery module.

[0048] Optionally, combined Figure 9 As shown, the cooling channel 121 includes a first serpentine channel 1211 and a second serpentine channel 1212. The liquid inlet end and the liquid outlet end of the first serpentine channel 1211 are respectively connected to the liquid inlet end and the liquid outlet end of the second serpentine channel 1212. The liquid inlet 122 is arranged at the connecting point of the liquid inlet end of the first serpentine channel 1211 and the liquid inlet end of the second serpentine channel 1212. The liquid outlet 123 is arranged at the connecting point of the liquid outlet end of the first serpentine channel 1211 and the liquid outlet end of the second serpentine channel 1212.

[0049] In this optional embodiment, the liquid inlet 122 is usually arranged at the connection point between the liquid inlet end of the first serpentine flow channel 1211 and the liquid inlet end of the second serpentine flow channel 1212, and the liquid outlet 123 is usually arranged at the connection point between the liquid outlet end of the first serpentine flow channel 1211 and the liquid outlet end of the second serpentine flow channel 1212, so that the liquid inlet 122 and the liquid outlet 123 are respectively located at, for example, the front and rear ends of the flow channel plate 12. In this way, after the coolant flows into the cooling circuit from the liquid inlet 122 located at one end of the flow channel plate 12, it can be divided into two paths and flow to the liquid outlet 123 located at the other end of the flow channel plate 12, that is, flow through the first serpentine flow channel 1211 and the second serpentine flow channel 1212 to the liquid outlet 123, so as to ensure that the cooling effect of the battery module in the areas corresponding to the first serpentine flow channel 1211 and the second serpentine flow channel 1212 is consistent, thereby improving the cooling effect of the battery module.

[0050] Further, combined with Figure 9 As shown, a liquid inlet pipe joint 14 and a liquid outlet pipe joint 15 are respectively provided at the liquid inlet 122 and the liquid outlet 123. In this way, the liquid inlet pipe and the liquid outlet pipe of the cooling circuit are conveniently fixed to the liquid inlet pipe joint 14 and the liquid outlet pipe joint 15, respectively, to improve the convenience of pipe connection.

[0051] Optionally, combined Figure 8 and Figure 10 As shown, the liquid cooling plate assembly 1 further includes a module bracket 13 , which is integrally formed with the flow channel plate 12 and is located on the side of the flow channel plate 12 facing the frame 2 , and is used to install the battery module.

[0052] In this optional embodiment, a cooling channel 121 is provided on one side of the flow channel plate 12, and a module bracket 13 is provided on the other side. The flow channel plate 12 is typically manufactured using a casting process, and the module bracket 13 is typically cast together with the flow channel plate 12, so that the module bracket 13 is integrated with the flow channel plate 12. This not only reduces the number of parts, facilitating material management and mass production, but also simplifies the production process, improves production efficiency, and reduces production costs.

[0053] Optionally, combined Figure 2 and Figure 11 As shown, the battery housing further includes a seal 3 , and the frame 2 and the liquid cooling plate assembly 1 are sealed and connected via the seal 3 .

[0054] In this optional embodiment, the seal 3 is typically a sealing foam, which can be a closed ring structure or a ring structure such as a rectangle formed by multiple sealing strips along the bottom edge of the frame 2. In actual application, the design can be selected according to actual needs and is not specifically limited here. In this way, by providing the seal 3 between the frame 2 and the liquid cooling plate assembly 1 to achieve a sealed connection, water from the outside of the battery housing is prevented from leaking into the battery housing through the connection between the frame 2 and the liquid cooling plate assembly 1, thereby improving the sealing of the battery housing.

[0055] Optionally, combined Figure 2 and Figure 11 As shown, a rivet nut 26 is provided at the bottom of the frame 2 , and the frame 2 and the liquid cooling plate assembly 1 are detachably connected at the rivet nut 26 via a threaded fastener.

[0056] Since the frame 2 is usually formed by roll forming of high-strength steel plates, and the thickness of the steel plates is usually small, if mounting points such as threaded holes or through holes are directly machined on the steel plates to assemble the liquid cooling plate assembly 1, it is easy to cause the steel plates to deform significantly. Moreover, the depth of the machined threaded holes is also small, which can easily cause slippage when the threads are tightened, resulting in poor tightening effect. Therefore, in this embodiment, rivet nuts 26 are embedded in the bottom of the frame 2 as mounting points for the liquid cooling plate assembly 1. While threaded fasteners such as bolts are threadedly connected to the rivet nuts 26 to achieve a detachable connection between the frame 2 and the liquid cooling plate assembly 1, the frame 2 is prevented from being significantly deformed during the machining of the mounting points, thereby improving the structural strength of the frame 2 and ensuring that the battery housing has high structural strength and stability.

[0057] Further, combined with Figure 11 As shown, a rivet nut 26 is provided on the top of the frame 2. The top of the frame 2 and the upper cover (not shown) are detachably connected by the rivet nut 26 and bolts. In this way, the rivet nut 26 is embedded in the top of the frame 2 as the mounting point of the upper cover to prevent the frame 2 from being significantly deformed during the processing of the mounting point, thereby improving the structural strength of the frame 2 and ensuring that the battery housing has high structural strength and stability.

[0058] Optionally, combined Figure 10 and Figure 11 As shown, the battery housing further includes a bracket attachment 4 , which is provided on a side of the frame 2 and located outside the frame 2 .

[0059] In this optional embodiment, the bracket attachment 4 is usually arranged on the outer side of the frame 2, which mainly includes a mounting bracket 41 and a water guide bracket (not shown in the figure), wherein the mounting bracket 41 is usually arranged on two opposite sides of the frame 2, for example Figure 10 As shown, the mounting bracket 41 is provided on the left and right sides of the frame 2; the mounting bracket 41 is used to be detachably connected to the mounting structure for mounting the battery housing (such as a vehicle body frame or a vehicle frame, etc.) to achieve the installation and fixation of the battery housing. The water retaining bracket is usually provided on at least one of the front side, rear side, left side and right side of the frame 2, and the water retaining bracket is usually an inclined channel steel structure with the notch of the channel steel structure facing the outside of the frame 2. When external water splashes onto the battery housing, the water guide bracket can guide the dripping water to the outside of the frame 2, thereby reducing the risk of water flowing along the outer surface of the frame 2 to the bottom of the frame 2 and penetrating into the interior of the battery housing from the connection between the flow channel plate 12 and the frame 2.

[0060] An embodiment of the present invention provides a vehicle, comprising the battery housing as described above.

[0061] The beneficial effects of the vehicle of this embodiment relative to the prior art are the same as those of the battery housing described above, and will not be described in detail here.

[0062] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A battery housing, characterized in that: The invention comprises a frame (2), wherein the cross-sectional structure of the frame (2) comprises a first cross-sectional structure (23), a second cross-sectional structure (24) and a third cross-sectional structure (25), wherein the first cross-sectional structure (23) and the third cross-sectional structure (25) are geometrically shaped, and the second cross-sectional structure (24) is linearly shaped, and the first cross-sectional structure (23) and the third cross-sectional structure (25) are respectively connected to two ends of the second cross-sectional structure (24).

2. The battery case according to claim 1, wherein: The first section (23) and the third section (25) are rectangular structures, the first side of the first section (23) and the first side of the third section (25) are respectively connected to the two ends of the second section (24), and the first side of the first section (23), the first side of the third section (25) and the second section (24) are located on the same straight line.

3. The battery case according to claim 1, wherein: The frame (2) comprises a first frame (21) and a second frame (22); the first frame (21) and the second frame (22) are both L-shaped structures, and the end surfaces of the two free ends of the first frame (21) are respectively fitted and connected with the end surfaces of the two free ends of the second frame (22) to form a rectangular frame structure.

4. The battery case according to claim 3, characterized in that The first frame (21) comprises a first side panel (211), a first connecting portion (212) and a second connecting portion (213); the cross-sectional structures of the first side panel (211), the first connecting portion (212) and the second connecting portion (213) are respectively the second cross-sectional structure (24), the first cross-sectional structure (23) and the third cross-sectional structure (25); and the first side panel (211) is a continuous plate structure.

5. The battery case according to claim 1, wherein: The invention also includes a liquid cooling plate assembly (1) connected to the frame (2), wherein the liquid cooling plate assembly (1) includes a flow channel plate (12) and a sealing plate (11), wherein a cooling channel (121) is provided on a side of the flow channel plate (12) facing away from the frame (2), and the sealing plate (11) is fitted and connected to the flow channel plate (12) and covers the cooling channel (121) to form a cooling circuit, and a liquid inlet (122) and a liquid outlet (123) are provided on a side of the flow channel plate (12) facing the frame (2), and the liquid inlet (122) and the liquid outlet (123) are respectively connected to the cooling channel (121).

6. The battery case according to claim 5, characterized in that The cooling channel (121) includes a first serpentine channel (1211) and a second serpentine channel (1212), wherein the liquid inlet and liquid outlet of the first serpentine channel (1211) are respectively connected to the liquid inlet and liquid outlet of the second serpentine channel (1212), the liquid inlet (122) is provided at the connection point between the liquid inlet end of the first serpentine channel (1211) and the liquid inlet end of the second serpentine channel (1212), and the liquid outlet (123) is provided at the connection point between the liquid outlet end of the first serpentine channel (1211) and the liquid outlet end of the second serpentine channel (1212).

7. The battery case according to claim 5, characterized in that The liquid cooling plate assembly (1) further comprises a module bracket (13), the module bracket (13) being integrally formed with the flow channel plate (12) and being located on a side of the flow channel plate (12) facing the frame (2), and the module bracket (13) being used for mounting a battery module.

8. The battery case according to claim 5, characterized in that A rivet nut (26) is provided at the bottom of the frame (2), and the frame (2) and the liquid cooling plate assembly (1) are detachably connected at the rivet nut (26) via a threaded fastener.

9. The battery case according to claim 1, wherein: It also includes a bracket attachment (4), which is arranged on the side of the frame (2) and located outside the frame (2).

10. A vehicle, characterized in that: The battery case comprises the battery case according to any one of claims 1 to 9.

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