Battery pack box and vehicle

Abstract

The invention discloses a battery pack box and a vehicle, and belongs to the technical field of vehicles, the battery pack box comprises a first shell, a first supporting assembly, a second shell and a first connecting assembly; the first supporting assembly is connected with the first shell, and a first containing space is defined by the first supporting assembly and the first shell. The second shell is connected to the side, close to the first supporting assembly, of the first shell, and a second containing space is defined by the second shell and the first supporting assembly. The first connecting assembly penetrates through the first shell, the first supporting assembly and the second shell, and part of the first connecting assembly is exposed out of the second shell. According to the battery pack box, the first connecting assembly capable of penetrating through the first shell is arranged, so that an operator can fix the battery pack box to the longitudinal beam of the vehicle from the bottom of the battery pack box, and the difficulty of connecting the battery pack box to the longitudinal beam of the vehicle is reduced.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a battery pack box and a vehicle. Background Art

[0002] New energy vehicles place batteries in battery pack boxes connected to the vehicle's longitudinal beams, and the number of batteries directly affects the mileage of new energy vehicles.

[0003] However, in actual use, in order to expand the battery and increase the mileage of new energy vehicles, multiple battery packs need to be suspended and installed on the vehicle longitudinal beams respectively, which has low installation efficiency and slow speed. Summary of the invention

[0004] Purpose of the invention: The present application provides a battery pack case for solving the technical problem of low installation efficiency when there are a large number of battery packs; another purpose of the present application is to provide a vehicle.

[0005] Technical solution: This application provides a battery pack box, including:

[0006] a first shell;

[0007] A first supporting assembly, the first supporting assembly is connected to the first shell and is surrounded by the first shell to form a first accommodating space;

[0008] A second shell, the second shell is connected to a side of the first shell close to the first supporting assembly, and is surrounded by the first supporting assembly to form a second accommodating space;

[0009] The first connecting component is connected to the first shell, the first connecting component passes through the first shell, the first supporting component and the second shell, and a part of the first connecting component is exposed outside the second shell.

[0010] In some embodiments, the battery pack case also includes a second support assembly, which is disposed in the first accommodating space and connected to the first shell, and the second support assembly is connected to a side of the first support assembly facing away from the second shell; the first connecting assembly passes through the second support assembly.

[0011] In some embodiments, the first connection component includes:

[0012] A first connecting member, the first connecting member is disposed through and connected to the first shell, and the first connecting member is disposed through the second supporting assembly;

[0013] The second connecting member is passed through and connected to the first connecting member, and a portion of the second connecting member is exposed outside the second shell.

[0014] In some embodiments, the first connecting member has a first limiting surface facing the second shell, and the first limiting surface is connected to the first shell;

[0015] The first connecting component further includes a third connecting member, the third connecting member is connected to the first connecting member, the third connecting member has a second limiting surface, and the second limiting surface is connected to a side of the second supporting component facing the second shell; and / or,

[0016] The first connecting component also includes a fourth connecting member, which is inserted into the second shell and connected to the first connecting member. The fourth connecting member has a third limiting surface, and the third limiting surface is connected to a side of the second shell facing away from the first shell.

[0017] In some embodiments, a protrusion is provided on a side of the second shell facing the first shell, the protrusion is located in the second accommodation space and protrudes toward the first shell, a groove is formed on a side of the protrusion away from the first shell, the groove passes through the second shell, the first connecting component passes through the second shell, and a portion of the first connecting component exposed from the second shell is located in the groove;

[0018] The second shell includes a plurality of protrusions, which are arranged at intervals along the first direction, and the protrusions divide the second accommodation space into a plurality of sub-spaces.

[0019] In some embodiments, the second support assembly includes:

[0020] A first support member, the first support member is connected to the first shell and is spaced apart from the first support assembly;

[0021] The second support member is arranged between the first support member and the first support assembly, and is respectively connected to the first support assembly and the first support member. The second support member is spaced apart from the first connection assembly.

[0022] In some embodiments, the first support assembly includes:

[0023] A plurality of first beams, the plurality of first beams are arranged at intervals along the second direction, the first beam is connected to a side of the first shell close to the second shell, the first beam is connected to a side of the second support assembly close to the second shell, and the first connecting assembly is arranged between two adjacent first beams;

[0024] A plurality of second beams, wherein the plurality of second beams are arranged at intervals along a first direction, and a first connecting component is arranged between two adjacent second beams;

[0025] The first beam has a first positioning groove facing the second shell, the second beam has a second positioning groove facing the first shell, the second beam is embedded in the first positioning groove and connected to the first beam, the first beam is embedded in the second positioning groove and connected to the second beam, and the first direction intersects with the second direction.

[0026] In some embodiments, the first housing includes:

[0027] The third support component, which is connected to the side of the second support component away from the first support component;

[0028] The fourth support component is disposed between the third support component and the second support component, and is respectively connected to the third support component and the second support component. The fourth support component is arranged along the circumferential direction of the third support component. The second housing is connected to the side of the fourth support component away from the third support component. The first support component, the third support component, and the fourth support component enclose a first accommodation space;

[0029] The covering part includes a first sub - part and a second sub - part. The first sub - part is attached to the side of the third support component facing away from the second housing, and the second sub - part is attached to the side of the fourth support component facing away from the first accommodation space. The first sub - part and the second sub - part are connected.

[0030] In some embodiments, the fourth support component includes:

[0031] The third support member is connected to the side of the third support component close to the second housing, and the first support component is connected to the side of the third support member away from the third support component;

[0032] The fourth support member is connected to the side of the third support member away from the third support component. The fourth support member protrudes relative to the third support member in a direction away from the first accommodation space and forms a first flanging portion;

[0033] The second housing includes a second flanging portion, and the second flanging portion is connected to the first flanging portion;

[0034] The battery pack box body further includes a second connection component, which passes through the first flanging portion and the second flanging portion, and a part of the second connection component is exposed outside the second flanging portion.

[0035] Correspondingly, the present application further provides a vehicle, including:

[0036] The longitudinal beam;

[0037] The battery pack box body as described above, the second housing is connected to the longitudinal beam, and the part of the first connection component exposed outside the second housing is connected to the longitudinal beam.

[0038] Beneficial effects: The battery pack box body provided by the embodiment of the present application includes a first housing, a first support assembly, a second housing, and a first connection assembly; the first support assembly is connected to the first housing and encloses a first accommodation space with the first housing; the second housing is connected to one side of the first housing close to the first support assembly and encloses a second accommodation space with the first support assembly; the first connection assembly penetrates through the first housing, the first support assembly, and the second housing, and a part of the first connection assembly is exposed outside the second housing. By providing the first connection assembly that can penetrate through the first housing, the operator can fix the battery pack box body to the vehicle longitudinal beam from the bottom of the battery pack box body, reducing the difficulty of connecting the battery pack box body to the vehicle longitudinal beam. Description of the Drawings

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative efforts.

[0040] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, where the same reference numerals in the following description represent the same parts.

[0041] Figure 1 Structural schematic diagram of the battery pack box body provided by the embodiment of the present application;

[0042] Figure 2 Cross-sectional view of the battery pack box body provided by the embodiment of the present application;

[0043] Figure 3 For Figure 2 Detail view of the circled area A in

[0044] Figure 4 For Figure 2 Detail view of the circled area B in

[0045] Figure 5 For Figure 2 Detail view of the circled area C in

[0046] Figure 6 Cross-sectional view of the battery pack box body provided by the embodiment of the present application from another angle;

[0047] Figure 7 For Figure 6 Detail view of the framed area D in

[0048] Figure 8 For Figure 1 Schematic diagram of the battery pack box body in with the second housing hidden;

[0049] Figure 9 It is a schematic structural diagram when the battery pack box body provided by the embodiment of the present application is connected to the longitudinal beam;

[0050] Figure 10 It is a cross-sectional view when the battery pack box body provided by the embodiment of the present application is connected to the longitudinal beam;

[0051] Figure 11 is Figure 10 a detail view of the circled E in;

[0052] Figure 12 is Figure 8 a detail view of the circled F in.

[0053] Explanation of reference numerals:

[0054] 10 - battery pack box body, 100 - first housing, 110 - first accommodation space, 120 - third support assembly, 140 - fourth support assembly, 141 - third support member, 142 - fourth support member, 143 - first flanging portion, 150 - covering portion, 151 - first sub - portion, 152 - second sub - portion, 200 - first support assembly, 210 - first beam, 211 - first positioning groove, 220 - second beam, 221 - second positioning groove, 300 - second housing, 310 - second accommodation space, 311 - sub - space, 320 - protruding portion, 321 - groove, 330 - second flanging portion, 400 - first connection assembly, 410 - first connecting member, 411 - first limiting surface, 420 - second connecting member, 430 - third connecting member, 431 - second limiting surface, 440 - fourth connecting member, 441 - third limiting surface, 500 - second support assembly, 510 - first support member, 520 - second support member, 600 - second connection assembly, 20 - connecting frame, 30 - longitudinal beam, 40 - battery, X - first direction, Y - second direction, Z - third direction. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0056] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise clearly specifically limited. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0057] It should also be noted that in the drawings of the embodiments of the present application, the arrows marked with X, Y, and Z respectively represent the first direction X, the second direction Y, and the third direction Z. The introduction of the first direction X, the second direction Y, and the third direction Z in the description of the present application is to more clearly express the relative position relationship involved in the present application. Among them, the first direction X, the second direction Y, and the third direction Z are three relative directions intersecting each other, rather than absolute orientations. In practical applications, the first direction X, the second direction Y, and the third direction Z can point to any orientation in space as long as the intersecting relationship between the two is maintained.

[0058] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application.

[0059] The new energy vehicle places the battery 40 through the battery pack box body 10 connected to the vehicle frame, and the number of batteries 40 directly affects the driving range of the new energy vehicle.

[0060] However, in the actual use process, it is necessary to suspend and install multiple battery packs separately, resulting in low installation efficiency and slow speed.

[0061] To solve the above technical problem of low installation efficiency when the number of battery packs is large, the first embodiment of the present application provides a battery pack box body 10. Please refer to Figure 1 、 Figure 2 and Figure 6, the battery pack housing 10 includes a first housing 100, a first support assembly 200, a second housing 300, and a first connection assembly 400; the first support assembly 200 is connected to the first housing 100 and encloses a first accommodation space 110 with the first housing 100; the second housing 300 is connected to one side of the first housing 100 close to the first support assembly 200 and encloses a second accommodation space 310 with the first support assembly 200; the first connection assembly 400 is connected to the first housing 100, the first connection assembly 400 penetrates through the first housing 100, the first support assembly 200, and the second housing 300, and a part of the first connection assembly 400 is exposed outside the second housing 300.

[0062] Among them, the first accommodation space 110 is used for placing the battery 40, and the second accommodation space 310 is also used for placing the battery 40.

[0063] In some embodiments, the second housing 300 is connected to one side of the first housing 100 along the third direction Z, and the first support assembly 200 is connected to one side of the first housing 100 close to the second housing 300 along the third direction Z.

[0064] In some embodiments, the first connection assembly 400 extends along the third direction Z.

[0065] In some embodiments, the third direction Z is a direction perpendicular to the horizontal plane.

[0066] In the above embodiments, by providing the first support member 510, upper and lower two spaces are formed inside the battery pack housing 10, which can allow the battery pack housing 10 to accommodate more batteries 40 while the projection of the battery pack housing 10 on the ground remains unchanged in the height direction. By only connecting the battery pack housing 10 to the longitudinal beam 30, more batteries 40 can be connected to the longitudinal beam 30 more efficiently, thereby improving the installation efficiency of the battery 40 and the battery pack. At the same time, the first connecting member 410 for connecting the battery pack housing 10 and the longitudinal beam 30 can penetrate from the first housing 100 of the battery pack to the second housing 300, that is, it can penetrate upward from the lower surface, which can facilitate the operator or the instrument to connect the battery pack housing 10 and the longitudinal beam 30 from below the vehicle. Compared with connecting the battery pack housing 10 from above the longitudinal beam 30, more devices fixedly connected to the longitudinal beam 30 can be avoided, and a larger operating space can be obtained, thereby reducing the installation difficulty of the battery pack housing 10 and improving the installation efficiency of the battery pack housing 10. In addition, the first connecting member 410 connected to the first housing 100 can also directly connect the part at the bottom of the battery pack housing 10 to the longitudinal beam 30. It is not easy for the first housing 100 and the second housing 300 to separate due to the influence of gravity or vehicle bumps, improving the connection reliability after the battery pack housing 10 and the longitudinal beam 30 are connected.

[0067] In some embodiments, please refer toFigure 2 , Figure 6 and Figure 8 The battery pack case 10 also includes a second support assembly 500, which is disposed in the first accommodating space 110 and connected to the first shell 100, and the second support assembly 500 is connected to a side of the first support assembly 200 away from the second shell 300; the first connecting assembly 400 is passed through the second support assembly 500.

[0068] In some embodiments, the second supporting component 500 has a guide hole, and the first connecting component 400 is inserted into the guide hole.

[0069] In some embodiments, the second support assembly 500 extends along the second direction Y; in some embodiments, at least one end of the second support assembly 500 along the second direction Y is connected to the first shell 100; in some embodiments, the second direction Y is the forward direction of the vehicle.

[0070] In some embodiments, the first support assembly 200 is connected to the first shell 100 via a threaded connection pair; in some embodiments, the first shell 100 includes a third support assembly 120 as a skeleton and laid on the bottom of the first shell 100. The third support assembly 120 is spliced ​​by a rectangular tube with an inner cavity. The end of the threaded connection pair that is away from the second shell 300 is arranged in the inner cavity to avoid the threaded connection pair penetrating through the surface of the first shell 100 away from the second shell 300, thereby ensuring that the surface of the battery pack case 10 is flat.

[0071] It is understandable that the maximum dimension between the first shell 100 and the second shell 300 along the third direction Z is relatively large, and the first connecting assembly 400 may be tilted during installation, resulting in increased difficulty in installation.

[0072] In the above embodiments, by passing the first connection component 400 through the second support component 500, the second support component 500 can guide the first connection component 400 in the third direction Z during installation, thereby reducing the installation difficulty of the first connection component 400. At the same time, the second support component 500 can also fix the first connection component 400 after installation, reducing the possibility that the first connection component 400 tilts when the battery pack housing 10 shakes, resulting in relative movement perpendicular to the third direction Z between the first housing 100 and the second housing 300, thereby improving the connection reliability between the first housing 100 and the second housing 300 and enhancing the use reliability of the battery pack housing 10. In addition, the second support member 520 disposed in the first accommodation space 110 can also improve the mechanical properties of the first housing 100, support the first housing 100 in the direction perpendicular to the third direction Z, and reduce the possibility of deformation of the first housing 100. Especially when the vehicle is impacted, the second support component 500 can reduce the amplitude of deformation of the first housing 100, thereby reducing the possibility that the battery 40 in the battery pack housing 10 is squeezed and enhancing the safety performance of the battery pack.

[0073] In some embodiments, referring to Figure 4 and Figure 7 , the first connection component 400 includes a first connecting member 410 and a second connecting member 420. The first connecting member 410 passes through and is connected to the first housing 100, and the first connecting member 410 passes through the second support component 500; the second connecting member 420 passes through and is connected to the first connecting member 410, and a part of the second connecting member 420 is exposed outside the second housing 300.

[0074] In some embodiments, the first connecting member 410 has a countersunk hole to axially limit the second connecting member 420 passing through the countersunk hole. In some applications, the second connecting member 420 is a bolt. The countersunk hole can not only limit the bolt but also make the head of the bolt completely sink into the countersunk hole, preventing the bolt from protruding outside the first housing 100 and keeping the surface of the battery pack housing 10 flat.

[0075] In the above embodiments, dividing the first connection component 400 into two parts, the first connecting member 410 and the second connecting member 420, can reduce the lengths of the first connecting member 410 and the second connecting member 420, thereby further reducing the installation difficulty of the battery pack housing 10.

[0076] In some embodiments, referring to Figure 4 , Figure 5 and Figure 7The first connecting member 410 has a first limiting surface 411 facing the second shell 300, and the first limiting surface 411 is connected to the first shell 100; the first connecting component 400 also includes a third connecting member 430, the third connecting member 430 is connected to the first connecting member 410, and the third connecting member 430 has a second limiting surface 431, and the second limiting surface 431 is connected to the side of the second supporting component 500 facing the second shell 300.

[0077] In some embodiments, the first shell 100 includes a third support assembly 120 as a skeleton and laid on the bottom of the first shell 100. The third support assembly 120 is spliced ​​by rectangular tubes with inner cavities. The rectangular tubes have limiting holes. The limiting holes penetrate the rectangular tubes and form a first opening and a second opening on the rectangular tubes. The first opening is connected to the first accommodating space 110. The area of ​​the first opening is smaller than the area of ​​the second opening. The first connecting member 410 has a limiting portion, and the limiting portion has a first limiting surface 411. The orthographic projection of the limiting portion along the third direction Z on the second shell 300 is located within the orthographic projection of the second opening along the third direction Z on the second shell 300, and is located outside the orthographic projection of the first opening along the third direction Z on the second shell 300. Therefore, the limiting portion can pass through the second opening into the inner cavity, but cannot pass through the first opening. The first limiting surface 411 is connected to the inner wall of the inner cavity of the rectangular tube, and the rectangular tube limits the limiting portion to limit the first connecting member 410.

[0078] In some embodiments, the third connecting member 430 is sleeved on the first connecting member 410 ; in some embodiments, the third connecting member 430 is threadedly connected to the first connecting member 410 .

[0079] In the above embodiment, the first limiting surface 411 and the second limiting surface 431 are provided to limit the first connecting member 410 in the axial direction, thereby further improving the connection reliability of the battery pack case 10 .

[0080] In some embodiments, see Figure 4 , Figure 5 and Figure 7 The first connecting component 400 also includes a fourth connecting member 440, which is inserted into the second shell 300 and connected to the first connecting member 410. The fourth connecting member 440 has a third limiting surface 441, and the third limiting surface 441 is connected to the side of the second shell 300 away from the first shell 100.

[0081] In some embodiments, the countersunk holes of the first connecting member 410 have countersunk structures at both ends of the first connecting member 410. One end facing away from the second housing 300 is used to place the head of the bolt serving as the first connecting member 410, and the end close to the second housing 300 is used to place the fourth connecting member 440; in some embodiments, the countersunk structure close to the second housing 300 has internal threads, and the fourth connecting member 440 located on the side of the second housing 300 close to the first housing 100 has external threads, and the fourth connecting member 440 is threadedly connected to the first connecting member 410.

[0082] In some embodiments, the second connecting member 420 passes through the fourth connecting member 440.

[0083] In some embodiments, the second housing 300 is clamped between the first connecting member 410 and the fourth connecting member 440.

[0084] In the above embodiments, by providing the fourth connecting member 440 to further define the position of the first connecting member 410, the connection reliability of the first connecting member 410 is improved. In addition, the fourth connecting member 440 and the first connecting member 410 cooperate to clamp the second housing 300, which can also reduce the possibility of deformation of the second housing 300 as a thin plate member, and further improve the use reliability of the battery pack housing 10. On the other hand, please refer to Figure 10 and Figure 11 , the surface of the fourth connecting member 440 facing away from the first housing 100 is used to contact the longitudinal beam 30 to define the distance between the longitudinal beam 30 and the battery pack housing 10 in the third direction Z, so as to reduce the contact area between the battery pack housing 10 and the longitudinal beam 30 and reduce the possibility of friction between the battery pack housing 10 and the longitudinal beam 30.

[0085] In some embodiments, please refer to Figure 1 , on the side of the second housing 300 facing the first housing 100, a protruding portion 320 is provided. The protruding portion 320 is located in the second accommodation space 310 and protrudes towards the first housing 100. A groove 321 is formed on the side of the protruding portion 320 facing away from the first housing 100. The groove 321 penetrates the second housing 300. The first connection assembly 400 penetrates the second housing 300, and the part of the first connection assembly 400 exposed outside the second housing 300 is located in the groove 321; wherein, the second housing 300 includes a plurality of protruding portions 320, and the plurality of protruding portions 320 are arranged at intervals along the first direction X, and the protruding portions 320 divide the second accommodation space 310 into a plurality of sub-spaces 311.

[0086] In some embodiments, the first direction X is the left-right direction of the vehicle.

[0087] In some embodiments, the number of grooves 321 formed by the protruding portions 320 is equal to the number of longitudinal beams 30 of the vehicle on which the battery pack housing 10 needs to be installed.

[0088] In some embodiments, the groove 321 extends along the second direction Y and penetrates the second housing 300; in some embodiments, the second direction Y is the vehicle forward direction.

[0089] In some embodiments, a part of the plurality of sub-spaces 311 is located between two adjacent longitudinal beams 30, and a part of the battery 40 is disposed in the sub-space 311, that is, a part of the battery 40 in the battery pack housing 10 is located between two adjacent longitudinal beams 30.

[0090] In the above embodiments, by providing the groove 321, the installation height after the connection between the battery pack housing 10 and the longitudinal beam 30 is increased, thereby ensuring the ground clearance of the vehicle and making the vehicle more passable. In addition, please refer to Figure 9 ., by providing a plurality of grooves 321, a plurality of longitudinal beams 30 can be disposed in the grooves 321, so that a part of the battery pack housing 10 can be disposed between two adjacent longitudinal beams 30, improving the space utilization rate of the vehicle chassis, enabling the battery pack housing 10 to carry a larger number of batteries 40, and thus improving the mileage of the new energy vehicle.

[0091] In some embodiments, please refer to Figure 2 , Figure 6 and Figure 7 , the second support assembly 500 includes a first support member 510 and a second support member 520. The first support member 510 is connected to the first housing 100 and is spaced apart from the first support assembly 200; the second support member 520 is disposed between the first support member 510 and the first support assembly 200, and is respectively connected to the first support assembly 200 and the first support member 510, and the second support member 520 is spaced apart from the first connection assembly 400.

[0092] In some embodiments, the second support member 520 and the first connection assembly 400 are spaced apart along the second direction Y.

[0093] In some embodiments, at least a part of the second support member 520 is located between two adjacent first connection assemblies 400, and at least a part of the first connection member 410 is located between two adjacent second support members 520.

[0094] In the above embodiments, the second support member 520 for supporting the first support assembly 200 is provided on one side of the first connection assembly 400 along the second direction Y, further improving the space utilization rate inside the battery pack housing 10, enabling the battery pack housing 10 to carry more batteries 40, thereby further reducing the difficulty of connecting the plurality of batteries 40 to the longitudinal beam 30 and improving the mileage of the new energy vehicle.

[0095] In some embodiments, please refer toFigure 8 and Figure 12 , the first support assembly 200 includes a plurality of first beams 210, the plurality of first beams 210 are arranged at intervals along the second direction Y, the first beam 210 is connected to one side of the first housing 100 close to the second housing 300, the first beam 210 is connected to one side of the second support assembly 500 close to the second housing 300, and the first connection assembly 400 is arranged between two adjacent first beams 210; a plurality of second beams 220, the plurality of second beams 220 are arranged at intervals along the first direction X, and the first connection assembly 400 is arranged between two adjacent second beams 220; wherein, the first beam 210 has a first positioning groove 211 facing the second housing 300, the second beam 220 has a second positioning groove 221 facing the first housing 100, the second beam 220 is embedded in the first positioning groove 211 and connected to the first beam 210, the first beam 210 is embedded in the second positioning groove 221 and connected to the second beam 220, and the first direction X intersects the second direction Y.

[0096] In some embodiments, the dimension of the first beam 210 along the third direction Z is the same as the dimension of the second beam 220 along the third direction Z, and the surface of the first beam 210 close to the second housing 300 is flush with the surface of the second beam 220 close to the second housing 300.

[0097] In the above embodiments, the connection between the mutually embedded first beam 210 and the second beam 220 is tighter and more reliable, and enables the first beam 210 and the second beam 220 to abut against each other in the first direction X and the second direction Y, thereby improving the mechanical properties of the first support assembly 200 in the direction perpendicular to the third direction Z and reducing the possibility of deformation of the first support assembly 200 in the direction perpendicular to the third direction Z.

[0098] In some embodiments, please refer to Figure 8, the first housing 100 includes a third support assembly 120, a fourth support assembly 140, and a covering portion 150. The third support assembly 120 is connected to a side of the second support assembly 500 away from the first support assembly 200; the fourth support assembly 140 is disposed between the third support assembly 120 and the second support assembly 500 and is respectively connected to the third support assembly 120 and the second support assembly 500, and the fourth support assembly 140 is disposed along the circumference of the third support assembly 120. The second housing 300 is connected to a side of the fourth support assembly 140 away from the third support assembly 120. The first support assembly 200, the third support assembly 120, and the fourth support assembly 140 enclose a first accommodation space 110; the covering portion 150 includes a first sub-portion 151 and a second sub-portion 152. The first sub-portion 151 is attached to a side of the third support assembly 120 facing away from the second housing 300, and the second sub-portion 152 is attached to a side of the fourth support assembly 140 facing away from the first accommodation space 110. The first sub-portion 151 and the second sub-portion 152 are connected.

[0099] In the above embodiment, the third support assembly 120 and the fourth support assembly 140 are respectively located inside the covering portion 150 as the skeleton of the bottom and the side of the first housing 100 to support the first housing 100, making the battery pack box 10 more firm and reliable and having better mechanical properties. At the same time, it can also support the entire battery pack box 10. The covering portion 150 attached to the outside of the third support assembly 120 and the fourth support assembly 140 can ensure the sealing performance of the first housing 100 and prevent sundries from entering the first accommodation space 110.

[0100] In some embodiments, please refer to Figure 3 , the fourth support assembly 140 includes a third support member 141 and a fourth support member 142. The third support member 141 is connected to a side of the third support assembly 120 close to the second housing 300, and the first support assembly 200 is connected to a side of the third support member 141 away from the third support assembly 120; the fourth support member 142 is connected to a side of the third support member 141 away from the third support assembly 120. The fourth support member 142 protrudes relative to the third support member 141 in a direction away from the first accommodation space 110 and forms a first flanging portion 143; the second housing 300 includes a second flanging portion 330, and the second flanging portion 330 is connected to the first flanging portion 143; the battery pack box 10 further includes a second connection assembly 600. The second connection assembly 600 passes through the first flanging portion 143 and the second flanging portion 330, and a part of the second connection assembly 600 is exposed outside the second flanging portion 330.

[0101] In the above embodiments, the first flanging portion 143 formed by the fourth support member 142 and the second side of the second housing 300 do not allow the connection area between the first housing 100 and the second housing 300 to be larger to obtain a better connection effect. At the same time, the second flanging portion 330 also allows the connection area between the battery pack housing 10 and the longitudinal beam 30 to be larger. The second connection assembly 600 passing through the first flanging portion 143 and the second flanging portion 330 is used to connect the battery pack housing 10 and the longitudinal beam 30, making the connection between the battery pack housing 10 and the longitudinal beam 30 more reliable.

[0102] Correspondingly, please refer to Figure 9 and Figure 10 , this application also provides a vehicle, including a longitudinal beam 30, a battery pack housing 10 as in the above embodiments, the second housing 300 is connected to the longitudinal beam 30, and the part of the first connection assembly 400 exposed outside the second housing 300 is connected to the longitudinal beam 30.

[0103] In some embodiments, the vehicle further includes a battery 40, and the battery 40 is disposed in the first accommodation space 110 and the second accommodation space 310.

[0104] In some embodiments, the vehicle further includes a connecting frame 20. The connecting frame 20 can be sleeved on the second housing 300 and fixedly connected to the second flanging portion 330. A part of the connecting frame 20 can be disposed in the groove 321 to connect the longitudinal beam 30 and the groove wall of the groove 321, further increasing the connection area between the battery pack housing 10 and the longitudinal beam 30, making the connection between the battery pack housing 10 and the longitudinal beam 30 more reliable.

[0105] The above has introduced in detail a battery pack housing and a vehicle provided by the embodiments of the present application. Specific examples are used in this application to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery pack box, characterized in that: include: A first housing (100); A first supporting assembly (200), the first supporting assembly (200) being connected to the first shell (100) and being arranged together with the first shell (100) to form a first accommodating space (110); a second shell (300), the second shell (300) being connected to a side of the first shell (100) close to the first supporting assembly (200), and being surrounded by the first supporting assembly (200) to form a second accommodating space (310); A first connecting component (400), the first connecting component (400) is connected to the first shell (100), the first connecting component (400) passes through the first shell (100), the first supporting component (200) and the second shell (300), and a portion of the first connecting component (400) is exposed outside the second shell (300).

2. The battery pack case according to claim 1, characterized in that: The battery pack case (10) further comprises a second support assembly (500), wherein the second support assembly (500) is arranged in the first accommodating space (110) and is connected to the first shell (100), and the second support assembly (500) is connected to a side of the first support assembly (200) facing away from the second shell (300); and the first connecting assembly (400) is passed through the second support assembly (500).

3. The battery pack case according to claim 2, characterized in that: The first connection component (400) comprises: A first connecting member (410), the first connecting member (410) is disposed through and connected to the first shell (100), and the first connecting member (410) is disposed through the second supporting assembly (500); A second connecting member (420), wherein the second connecting member (420) is passed through and connected to the first connecting member (410), and a portion of the second connecting member (420) is exposed outside the second shell (300).

4. The battery pack case according to claim 3, characterized in that: The first connecting member (410) has a first limiting surface (411) facing the second shell (300), and the first limiting surface (411) is connected to the first shell (100); The first connecting component (400) further comprises a third connecting member (430), the third connecting member (430) being connected to the first connecting member (410), the third connecting member (430) having a second limiting surface (431), the second limiting surface (431) being connected to a side of the second supporting component (500) facing the second shell (300); and / or, The first connecting component (400) further comprises a fourth connecting member (440), the fourth connecting member (440) being passed through the second shell (300), the fourth connecting member (440) being connected to the first connecting member (410), the fourth connecting member (440) having a third limiting surface (441), and the third limiting surface (441) being connected to a side of the second shell (300) facing away from the first shell (100).

5. The battery pack case according to claim 1, characterized in that: A protrusion (320) is provided on a side of the second shell (300) facing the first shell (100), the protrusion (320) is located in the second accommodating space (310) and protrudes toward the first shell (100), a groove (321) is formed on a side of the protrusion (320) away from the first shell (100), the groove (321) passes through the second shell (300), the first connecting component (400) passes through the second shell (300), and a portion of the first connecting component (400) exposed from the second shell (300) is located in the groove (321); The second shell (300) comprises a plurality of protrusions (320), the plurality of protrusions (320) are arranged at intervals along the first direction (X), and the protrusions (320) divide the second accommodating space (310) into a plurality of subspaces (311).

6. The battery pack case according to claim 2, characterized in that: The second supporting assembly (500) comprises: a first support member (510), the first support member (510) being connected to the first shell (100) and spaced apart from the first support assembly (200); A second support member (520), wherein the second support member (520) is disposed between the first support member (510) and the first support assembly (200), and respectively connects the first support assembly (200) and the first support member (510), and the second support member (520) is spaced apart from the first connection assembly (400).

7. The battery pack case according to claim 2, characterized in that: The first supporting assembly (200) comprises: a plurality of first beams (210), wherein the plurality of first beams (210) are arranged at intervals along a second direction (Y), wherein the first beams (210) are connected to a side of the first shell (100) close to the second shell (300), wherein the first beams (210) are connected to a side of the second supporting assembly (500) close to the second shell (300), and wherein the first connecting assembly (400) is arranged between two adjacent first beams (210); A plurality of second beams (220), wherein the plurality of second beams (220) are arranged at intervals along a first direction (X), and the first connecting component (400) is arranged between two adjacent second beams (220); The first beam (210) has a first positioning groove (211) facing the second shell (300), the second beam (220) has a second positioning groove (221) facing the first shell (100), the second beam (220) is embedded in the first positioning groove (211) and connected to the first beam (210), the first beam (210) is embedded in the second positioning groove (221) and connected to the second beam (220), and the first direction (X) intersects with the second direction (Y).

8. The battery pack case according to claim 2, characterized in that: The first housing (100) comprises: a third supporting assembly (120), the third supporting assembly (120) being connected to a side of the second supporting assembly (500) away from the first supporting assembly (200); a fourth support assembly (140), the fourth support assembly (140) being arranged between the third support assembly (120) and the second support assembly (500), and respectively connecting the third support assembly (120) and the second support assembly (500), and the fourth support assembly (140) being arranged along the circumference of the third support assembly (120), the second shell (300) being connected to a side of the fourth support assembly (140) away from the third support assembly (120), and the first support assembly (200), the third support assembly (120) and the fourth support assembly (140) being arranged to enclose and form the first accommodating space (110); The covering portion (150) includes a first sub-portion (151) and a second sub-portion (152), wherein the first sub-portion (151) is attached to a side of the third supporting assembly (120) that is away from the second shell (300), and the second sub-portion (152) is attached to a side of the fourth supporting assembly (140) that is away from the first accommodating space (110), and the first sub-portion (151) and the second sub-portion (152) are connected.

9. The battery pack case according to claim 8, characterized in that: The fourth support assembly (140) comprises: a third support member (141), the third support member (141) being connected to a side of the third support assembly (120) close to the second shell (300), and the first support assembly (200) being connected to a side of the third support member (141) away from the third support assembly (120); a fourth support member (142), the fourth support member (142) being connected to a side of the third support member (141) away from the third support assembly (120), the fourth support member (142) protruding relative to the third support member (141) in a direction away from the first accommodating space (110) and forming a first flange portion (143); The second shell (300) comprises a second flange portion (330), and the second flange portion (330) is connected to the first flange portion (143); The battery pack case (10) further comprises a second connection component (600), wherein the second connection component (600) is inserted through the first flange portion (143) and the second flange portion (330), and a portion of the second connection component (600) is exposed outside the second flange portion (330).

10. A vehicle, characterized in that: include: Stringer (30); According to the battery pack case (10) as described in any one of claims 1 to 9, the second shell (300) is connected to the longitudinal beam (30), and the portion of the first connecting component (400) exposed outside the second shell (300) is connected to the longitudinal beam (30).

Images