Frame, battery pack and vehicle

Abstract

The utility model discloses a frame, a battery pack and a vehicle, the frame comprises a mounting part, a crumple part and a sealing part which are sequentially arranged along a first direction, the mounting part, the crumple part and the sealing part are integrally formed, the crumple part comprises at least two inclined ribs which are arranged along a second direction, the second direction is perpendicular to the first direction, and the sealing part is arranged on the mounting part. The extending direction of the inclined ribs and the first direction form an angle, the first ends, in the first direction, of the at least two inclined ribs intersect and are connected with the hanging part, and the second ends, in the first direction, of the at least two inclined ribs are arranged at intervals in the second direction and are connected with the sealing part. The frame provided by the utility model has the advantages of high structural strength, good anti-collision performance and low manufacturing cost.

Description

Technical Field

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

[0002] The battery box assembly is a key structural load-bearing component of the power battery and is also the heaviest and largest structural component in the battery pack. Among them, the battery frame is the key to bearing the weight of the battery cell module within the box assembly, the structural safety of the battery pack and the collision safety of the entire vehicle. However, the frame of the battery frame in the related art is usually formed by welding multiple profiles. At this time, there are defects such as complex frame production process, high production cost, poor connection stability between adjacent profiles, and low overall strength of the frame. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides a frame having the advantages of high structural strength, good anti-collision performance, and low manufacturing cost.

[0005] The embodiments of the present invention also provide a battery pack and a vehicle.

[0006] The frame of an embodiment of the utility model includes a hanging part, a collapse part and a sealing part arranged in sequence along a first direction, and the hanging part, the collapse part and the sealing part are integrally formed. The collapse part includes at least two oblique ribs arranged along a second direction, the second direction is perpendicular to the first direction, and the extension direction of the oblique ribs is at an angle to the first direction. At least two of the oblique ribs intersect at the first end of the first direction and are connected to the hanging part, and are arranged at intervals along the second direction at the second end of the first direction and are connected to the sealing part.

[0007] According to the frame of the embodiment of the present invention, the mounting part, the collapse part and the sealing part are integrally formed. Compared with the frame in the related art in which the mounting part, the collapse part and the sealing part are independently arranged and welded to each other, the difficulty of connecting each of the mounting part and the sealing part with the collapse part is effectively reduced, thereby effectively reducing the production cost of the frame, and at the same time, the connection stability and strength between each of the mounting part and the sealing part and the collapse part are effectively improved.

[0008] Furthermore, by providing the collapsible portion with at least two oblique ribs extending in an angled direction relative to the first direction, when the frame is subjected to a lateral collision, the oblique ribs are more easily deformed and bent than the transverse ribs, thereby achieving the collapsible portion's energy-absorbing effect. Furthermore, by providing at least two oblique ribs intersecting at one end adjacent to the mounting portion and spaced apart at one end adjacent to the sealing portion in the second direction, impacts from the mounting portion are transmitted through at least two force transmission paths. This ensures that the collapsible portion achieves its energy-absorbing effect while minimizing deformation of each oblique rib, thereby enhancing the structural strength and stability of the frame.

[0009] In some embodiments, the at least two oblique ribs include a first oblique rib and a second oblique rib, the first end of the first oblique rib in the first direction is connected to the first end of the second oblique rib in the first direction, the first oblique rib, the second oblique rib and the sealing portion surround to form a first collapse cavity, and the size of the first collapse cavity in the height direction gradually decreases toward the direction away from the sealing portion.

[0010] In some embodiments, the collapse portion further includes a first transverse rib, which is located on the side of the second oblique rib away from the first oblique rib in the second direction, and the extension direction of the first transverse rib is parallel to the first direction. The first transverse rib, the second oblique rib and the mounting portion surround to form a second collapse cavity, and the size of the second collapse cavity in the height direction gradually increases in the direction away from the sealing portion.

[0011] In some embodiments, the sealing portion includes a first vertical rib, a second transverse rib and a third transverse rib, the first vertical rib includes a first rib segment forming a portion of the inner wall surface of the first collapse cavity, the second transverse rib and the third transverse rib are arranged at intervals along the second direction, and the first ends of the second transverse rib and the third transverse rib in the first direction are respectively connected to the two ends of the first rib segment in the second direction.

[0012] In some embodiments, the first vertical rib also includes a second rib segment connected to the first rib segment, and the sealing portion also includes a fourth transverse rib and a second vertical rib, the fourth transverse rib is located on the side of the third transverse rib away from the second transverse rib in the second direction, and the first end of the fourth transverse rib in the first direction is connected to the end of the second rib segment away from the first rib segment; the second vertical ribs are arranged at intervals on the side of the first vertical rib away from the collapse portion, and the second transverse rib and the fourth transverse rib are connected to the second vertical rib at the second end in the first direction.

[0013] In some embodiments, the sealing portion further includes a buffer rib, the extension direction of the buffer rib is perpendicular to the first direction, the buffer rib is connected to the second end of the third transverse rib in the first direction, and the buffer rib is closely connected to the second vertical rib.

[0014] In some embodiments, the dimension of the buffer rib in the second direction is H1, where H1 ≥ 3 mm.

[0015] In some embodiments, the mounting portion includes a fifth transverse rib and a sixth transverse rib arranged at intervals along the second direction, and the ends of the first oblique rib and the second oblique rib away from the sealing portion are connected to the end of the fifth transverse rib adjacent to the sealing portion, and the end of the sixth transverse rib adjacent to the sealing portion is connected to the end of the first transverse rib away from the sealing portion.

[0016] In some embodiments, the second collapse cavity is communicated with an inner cavity formed around the mounting portion.

[0017] In some embodiments, the extending direction of the first oblique rib forms an angle a with the second direction, and the extending direction of the second oblique rib forms an angle b with the first direction, wherein 20°≤a≤75°, and / or 10°≤b≤75°.

[0018] In some embodiments, 45°≤a≤60°, and / or, 30°≤b≤45.

[0019] In some embodiments, the outer fillet radii and the inner fillet radii of the sealing portion at the corner positions are R1 and R2 respectively, wherein R1>2mm and R2>2mm.

[0020] In some embodiments, the maximum dimension of the sealing portion in the first direction is W1, the maximum dimension of the collapse portion in the first direction is W2, and the maximum dimension of the mounting portion in the first direction is W3, wherein 25 mm ≤ W1 ≤ 35 mm, W2 > 0.5*M1, W1 > W3 > 0.5*W2;

[0021] And / or, the maximum dimension of the mounting portion in the height direction is H2, wherein H2>3mm.

[0022] The battery pack according to an embodiment of the present invention includes the frame as described in any of the above embodiments.

[0023] The technical advantages of the battery pack according to the embodiment of the present invention are the same as the technical advantages of the frame of the above embodiment, and will not be repeated here.

[0024] A vehicle according to an embodiment of the present invention includes a battery pack as described in the above embodiment.

[0025] The technical advantages of the vehicle according to the embodiment of the present invention are the same as the technical advantages of the battery pack in the above embodiment, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a cross-sectional view of a frame in the related art.

[0027] Figure 2 Schematic diagram of a battery frame in a battery pack according to an embodiment of the present invention.

[0028] Figure 3 It is a cross-sectional view of a frame according to an embodiment of the present utility model.

[0029] Figure 4 A cross-sectional view of a frame according to an embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of the positions of the frame and battery cells according to an embodiment of the present utility model.

[0031] Figure 6 It is a schematic diagram of the deformation trend when buffer ribs are provided on the frame according to an embodiment of the utility model.

[0032] Figure 7 It is a schematic diagram of the deformation trend when the frame according to the embodiment of the utility model is not provided with buffer ribs.

[0033] Reference numerals:

[0034] 100. Frame; 1. Mounting part; 11. Fifth horizontal rib; 12. Sixth horizontal rib; 2. Collapse part; 21. First collapse cavity; 22. Second collapse cavity; 23. First oblique rib; 24. Second oblique rib; 25. First horizontal rib; 3. Sealing part; 31. Second horizontal rib; 32. Third horizontal rib; 33. Fourth horizontal rib; 34. First vertical rib; 341. First rib segment; 342. Second rib segment; 35. Buffer rib; 36. Second vertical rib; 37. Sealing cavity; 4. Battery cell. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0036] The applicant found that Figure 1 In the frame of the related technology shown, the collapse portion includes an oblique rib and a transverse rib arranged at intervals along the height direction. At this time, when the frame is subjected to a side collision, the oblique rib is more likely to collapse and deform than the transverse rib. Although the collapse energy absorption effect can be achieved at this time, it is easy to cause the mounting portion to warp in the height direction because the deformation degree of the oblique rib is greater than that of the transverse rib, resulting in low structural strength and poor stability of the frame.

[0037] In order to solve the above defects, the following Figure 2-Figure 7 A frame 100 according to an embodiment of the present invention is described.

[0038] The frame 100 of an embodiment of the present invention includes a mounting portion 1, a collapsed portion 2 and a sealing portion 3 arranged in sequence along a first direction. The mounting portion 1, the collapsed portion 2 and the sealing portion 3 are integrally formed. The collapsed portion 2 includes at least two oblique ribs arranged along a second direction. The second direction is perpendicular to the first direction, and the extension direction of the oblique ribs is at an angle to the first direction. At least two oblique ribs intersect at the first end in the first direction and are connected to the mounting portion 1, and are arranged at intervals along the second direction and connected to the sealing portion 3 at the second end in the first direction.

[0039] According to the frame 100 of the embodiment of the present invention, the mounting portion 1, the collapse portion 2 and the sealing portion 3 are integrally formed. Compared with the frame in the related art in which the mounting portion, the collapse portion and the sealing portion are independently arranged and welded to each other, the difficulty of connecting each of the mounting portion 1 and the sealing portion 3 with the collapse portion 2 is effectively reduced, thereby effectively reducing the production cost of the frame 100, and at the same time effectively improving the connection stability and strength between each of the mounting portion 1 and the sealing portion 3 and the collapse portion 2.

[0040] Furthermore, by providing the crushing portion 2 with at least two oblique ribs extending in an angled direction relative to the first direction, when the frame 100 is subjected to a side impact, the oblique ribs are more easily deformed and bent than the transverse ribs, thereby achieving the crushing energy absorption effect of the crushing portion 2. Furthermore, by providing at least two oblique ribs intersecting at one end adjacent to the mounting portion 1 and spaced apart at one end adjacent to the sealing portion 3 in the second direction, the impact from the mounting portion 1 can be formed into at least two force transmission paths. This ensures that the crushing portion 2 achieves its crushing energy absorption effect while minimizing the deformation of each oblique rib, thereby enhancing the structural strength and stability of the frame 100.

[0041] It should be noted that the first direction is the width direction of the frame 100 after installation, and the second direction is the height direction of the frame 100 after installation. Figure 2 As shown, the battery frame includes four frames 100 connected end to end. In each frame 100, each of the mounting portion 1, the collapsed portion 2, and the sealing portion 3 extends along the length of the corresponding frame 100. The mounting portion 1, the collapsed portion 2, and the sealing portion 3 are preferably integrally roll-formed from a steel plate. The thickness of the steel plate used to make the frame 100 is 1 mm to 2 mm, preferably 1.2 mm.

[0042] For ease of understanding, Figure 3 The direction indicated by the arrow A is the first direction of the frame 100 according to the embodiment of the present invention. Figure 3 The direction indicated by the middle arrow B is the second direction of the frame 100 according to the embodiment of the present invention.

[0043] In some embodiments, at least two oblique ribs include a first oblique rib 23 and a second oblique rib 24, the first oblique rib 23 and the second oblique rib 24 are connected at the first end in the first direction, the first oblique rib 23, the second oblique rib 24 and the sealing portion 3 form a first collapse cavity 21, and the size of the first collapse cavity 21 in the height direction gradually decreases in the direction away from the sealing portion 3.

[0044] That is, the first collapse cavity 21 is a triangular cavity, and the structural stability of the first collapse cavity 21 is higher. While being able to achieve the collapse energy absorption effect, it is not easy for the mounting part 1 to warp in the height direction due to excessive deformation.

[0045] Specifically, the first oblique rib 23 is located above the second oblique rib 24 , and the outer contour of the cross section of the first collapse cavity 21 is substantially an isosceles triangle, and the height direction of the isosceles triangle is consistent with the first direction.

[0046] In some embodiments, the collapse portion 2 further includes a first transverse rib 25, which is located in the second direction on the side of the second oblique rib 24 away from the first oblique rib 23, and the extension direction of the first transverse rib 25 is parallel to the first direction. The first transverse rib 25, the second oblique rib 24 and the mounting portion 1 surround to form a second collapse cavity 22, and the size of the second collapse cavity 22 in the height direction gradually increases in the direction away from the sealing portion 3.

[0047] like Figure 5 As shown, when the frame 100 is subjected to a side collision, the collapse portion 2 can form three force transmission paths including the first oblique rib 23, the second oblique rib 24 and the first transverse rib 25, so as to effectively disperse the collision energy, and then can collapse synchronously through the first collapse cavity 21 and the second collapse cavity 22 to achieve a better energy absorption effect, and effectively avoid the sealing portion 3 from deforming too much toward the battery cell 4 and squeezing the battery cell 4 to affect the performance of the battery cell 4.

[0048] Specifically, if Figure 3 and Figure 4 As shown, the first oblique rib 23 and the second oblique rib 24 extend obliquely upward and obliquely downward toward the sealing portion 3 respectively. The first collapse cavity 21 is located above the second collapse cavity 22. The first collapse cavity 21 and the second collapse cavity 22 are both triangular cavities.

[0049] In some embodiments, as Figure 3 As shown, the sealing portion 3 includes a first vertical rib 34, a second transverse rib 31 and a third transverse rib 32. The first vertical rib 34 includes a first rib segment 341 that forms a portion of the inner wall surface of the first collapse cavity 21. The second transverse rib 31 and the third transverse rib 32 are arranged at intervals along the second direction. The first ends of the second transverse rib 31 and the third transverse rib 32 in the first direction are respectively connected to the two ends of the first rib segment 341 in the second direction.

[0050] At this time, when the frame 100 is subjected to a side collision, the first oblique rib 23 and the second oblique rib 24 transfer the impact to the sealing part 3, and the second transverse rib 31 and the third transverse rib 32 are respectively adjacent to the second oblique rib 24 and the first oblique rib 23 away from the end of the mounting part 1. The two can better withstand the impact without deformation, thereby effectively improving the supporting strength of the sealing part 3 in the first direction, and the sealing part 3 is less likely to bend and deform, and the overall structural strength of the frame 100 is higher.

[0051] Specifically, the second transverse rib 31 is located below the third transverse rib 32, and the second transverse rib 31 serves as the bottom plate of the sealing portion 3. The end of the first oblique rib 23 adjacent to the first rib segment 341 is butt-welded to the third transverse rib 32. The end of the second oblique plate adjacent to the first rib segment 341 is connected to the end of the first transverse rib 25 adjacent to the first rib segment 341, and is then butt-welded to the second transverse rib 31.

[0052] In some embodiments, as Figure 3 As shown, the first vertical rib 34 also includes a second rib segment 342 connected to the first rib segment 341, and the sealing portion 3 also includes a fourth transverse rib 33 and a second vertical rib 36. The fourth transverse rib 33 is located on the side of the third transverse rib 32 away from the second transverse rib 31 in the second direction, and the first end of the fourth transverse rib 33 in the first direction is connected to the end of the second rib segment 342 away from the first rib segment 341. The second vertical ribs 36 are arranged at intervals on the side of the first vertical rib 34 away from the collapse portion 2, and the second transverse rib 31 and the fourth transverse rib 33 are connected to the second vertical rib 36 at the second end in the first direction. That is, the sealing portion 3 forms two sealed cavities 37, and the second transverse rib 31 plays a role in strengthening the strength of the sealing portion 3 in the height direction. When the frame 100 is subjected to a lateral collision, the deformation of the sealing portion 3 toward the battery cell 4 is smaller.

[0053] In some embodiments, as Figure 3 As shown, the sealing portion 3 further includes a buffer rib 35 , the extension direction of the buffer rib 35 is perpendicular to the first direction, the buffer rib 35 is connected to the second end of the third transverse rib 32 in the first direction, and the buffer rib 35 is closely connected to the second vertical rib 36 .

[0054] At this time, the setting of the buffer rib 35 is as follows Figure 6 and Figure 7 As shown, when the frame 100 is subjected to a side collision, the impact on the second horizontal rib 31 acts on the second vertical rib 36 through the buffer rib 35, so that the area acting on the second vertical rib 36 is relatively wider, and the second vertical rib 36 is less likely to deform too much and invade too much into the battery pack, effectively reducing the risk of the second vertical rib 36 contacting or puncturing the shell of the battery cell 4.

[0055] Specifically, the buffer rib 35 and the second vertical rib 36 are connected by right-angle penetration welding.

[0056] It should be noted that Figure 4As shown, the sealing portion 3 may also form only one sealing cavity 37. In this case, the first oblique rib 23 and the first vertical rib 34 of the sealing portion 3 are butt-welded from the inside. To ensure welding strength, the width H3 of the overlapping portion between the two is greater than 2 mm, such as 3 mm.

[0057] In some embodiments, as Figure 3 As shown, the dimension of the buffer rib 35 in the second direction is H1, where H1 ≥ 3 mm. This further reduces the impact of the second transverse rib 31 on the second vertical rib 36, and reduces the risk of excessive deformation of the second vertical rib 36 and contact or puncture of the battery cell 4 housing.

[0058] Specifically, the height dimensions of the buffer rib 35 may be 3 mm, 4 mm, or 5 mm.

[0059] In some embodiments, as Figure 3 and Figure 4 As shown, the mounting portion 1 includes a fifth transverse rib 11 and a sixth transverse rib 12 arranged at intervals along the second direction, the ends of the first oblique rib 23 and the second oblique rib 24 away from the sealing portion 3 are connected to the end of the fifth transverse rib 11 adjacent to the sealing portion 3, and the end of the sixth transverse rib 12 adjacent to the sealing portion 3 is connected to the end of the first transverse rib 25 away from the sealing portion 3.

[0060] Therefore, when the frame 100 is subjected to a side collision, the impact received by the fifth transverse rib 11 is directly transmitted to the first oblique rib 23 and the second oblique rib 24, and the impact received by the sixth transverse rib 12 is directly transmitted to the first transverse rib 25. As a result, the first oblique rib 23, the second oblique rib 24 and the first transverse rib 25 have a better effect of dispersing the impact from the bearing part, effectively preventing the fifth transverse rib 11 and the sixth transverse rib 12 from directly invading the collapse part 2 when subjected to external impact.

[0061] In some embodiments, as Figure 3 and Figure 4 As shown, the second collapse cavity 22 is communicated with the inner cavity formed around the mounting portion 1 .

[0062] At this time, there is no need to set a partition to separate the second collapse cavity 22 and the inner cavity formed around the mounting part 1, which effectively reduces the material used in the frame 100, the production cost of the frame 100 is lower, and the lightweight requirements of the vehicle are effectively met.

[0063] In some embodiments, as Figure 3 As shown, the extending direction of the first oblique rib 23 forms an angle a with the second direction, and the extending direction of the second oblique rib 24 forms an angle b with the first direction, wherein 20°≤a≤75°, and / or 10°≤b≤75°.

[0064] By setting the angle between the extension direction of the first oblique rib 23 and the height direction to be greater than or equal to 20°, this effectively prevents a small angle between the two, which would lead to poor stability of the first crush cavity 21 and its inability to withstand side collisions. By setting the angle between the extension direction of the first oblique rib 23 and the height direction to no more than 75°, this effectively prevents an excessively large angle between the two, which would increase the difficulty of compressive deformation and, in turn, make it difficult for the first crush cavity 21 to collapse and absorb energy.

[0065] By setting the angle between the extension direction of the second oblique rib 24 and the first direction to be greater than or equal to 10°, this effectively prevents a too small angle from causing the second crush cavity 22 to be less stable and unable to withstand side impacts. By setting the angle between the extension direction of the second oblique rib 24 and the first direction to be no more than 75°, this effectively prevents a too large angle from increasing the difficulty of the second oblique rib 24 deforming under pressure, thereby making it more difficult for the second crush cavity 22 to collapse and absorb energy.

[0066] In some embodiments, 45°≤a≤60°, and / or 30°≤b≤45°. This ensures that the crush portion 2 forms a first crush cavity 21 and a second crush cavity 22 with greater stability, and is also more easily deformed and crushed to absorb energy than the sealing portion 3 and the mounting portion 1 during a lateral collision, thereby effectively ensuring the sealing performance of the sealing portion 3 and the load-bearing performance of the mounting portion 1.

[0067] For example, the angle between the extension direction of the first oblique rib 23 and the height direction can be 45°, 50°, 55° and 60°, and the angle between the extension direction of the second oblique rib 24 and the first direction can be 30°, 35°, 40° and 45°.

[0068] In some embodiments, the outer fillet radii and the inner fillet radii of the sealing portion 3 at the corner positions are R1 and R2 respectively, wherein R1>2mm and R2>2mm.

[0069] Therefore, when the thickness of the steel plate of the roll-formed sealing portion 3 is between 1 mm and 2 mm, the corners of the sealing portion 3 are less likely to crack, and the yield rate of the frame 100 is higher.

[0070] Specifically, the outer fillet radius and the inner fillet radius of the sealing portion 3 at the corner position may both be 3 mm.

[0071] In some embodiments, the maximum dimension of the sealing portion 3 in the first direction is W1, the maximum dimension of the collapse portion 2 in the first direction is W2, and the maximum dimension of the mounting portion 1 in the first direction is W3, wherein 25mm≤W1≤35mm, W2>0.5*M1, W1>W3>0.5*W2.

[0072] By setting W1 to be greater than or equal to 25mm, the sealing portion 3 is ensured to have sufficient width to connect with other components of the battery frame, such as the bottom guard plate, to achieve a satisfactory sealing effect. By setting W1 to be less than or equal to 35mm, the sealing portion 3 is prevented from being too large in the width direction, thereby occupying too much space inside the battery pack and affecting the energy density of the battery pack. At the same time, by setting W2>0.5*M1, W1>W3>0.5*W2, it is ensured that the collapse cavity has sufficient collapse space to better absorb side collisions, and that the mounting portion 1 has sufficient width to form a mounting point for the mounting bolts.

[0073] And / or, the maximum height dimension of the mounting portion 1 is H2, where H2 > 3 mm. This prevents the mounting portion 1 from being too small in height, which could result in a weak connection with the constricted portion 2. In this case, the mounting portion 1 is less likely to bend or deform relative to the constricted portion 2 when supporting the entire battery pack.

[0074] The battery pack according to an embodiment of the present invention includes the frame 100 as described in any of the above embodiments.

[0075] The technical advantages of the battery pack according to the embodiment of the present invention are the same as the technical advantages of the frame 100 of the above embodiment, and will not be repeated here.

[0076] A vehicle according to an embodiment of the present invention includes a battery pack as described in the above embodiment.

[0077] The technical advantages of the vehicle according to the embodiment of the present invention are the same as the technical advantages of the battery pack in the above embodiment, and will not be repeated here.

[0078] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing 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 and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0080] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0081] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0082] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0083] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present invention.

Claims

1. A frame, characterized in that: It comprises a mounting portion, a collapsing portion and a sealing portion arranged in sequence along a first direction, wherein the mounting portion, the collapsing portion and the sealing portion are integrally formed. The collapse portion includes at least two oblique ribs arranged along a second direction, the second direction is perpendicular to the first direction, the extension direction of the oblique ribs is at an angle to the first direction, at least two of the oblique ribs intersect at a first end in the first direction and are connected to the mounting portion, and are arranged at intervals along the second direction at a second end in the first direction and are connected to the sealing portion.

2. The frame according to claim 1, characterized in that The at least two oblique ribs include a first oblique rib and a second oblique rib, the first end of the first oblique rib in the first direction is connected to the first end of the second oblique rib in the first direction, the first oblique rib, the second oblique rib and the sealing portion surround to form a first collapse cavity, and the size of the first collapse cavity in the height direction gradually decreases in the direction away from the sealing portion.

3. The frame according to claim 2, characterized in that The collapse portion also includes a first transverse rib, which is located on the side of the second oblique rib away from the first oblique rib in the second direction, and the extension direction of the first transverse rib is parallel to the first direction. The first transverse rib, the second oblique rib and the mounting portion form a second collapse cavity, and the size of the second collapse cavity in the height direction gradually increases towards the direction away from the sealing portion.

4. The frame according to claim 2 or 3, characterized in that: The sealing portion includes a first vertical rib, a second transverse rib and a third transverse rib, the first vertical rib includes a first rib segment forming a portion of the inner wall surface of the first collapse cavity, the second transverse rib and the third transverse rib are arranged at intervals along the second direction, and the first ends of the second transverse rib and the third transverse rib in the first direction are respectively connected to the two ends of the first rib segment in the second direction.

5. The frame according to claim 4, characterized in that: The first vertical rib further includes a second rib segment connected to the first rib segment, and the sealing portion further includes: a fourth transverse rib, the fourth transverse rib being located in the second direction on a side of the third transverse rib facing away from the second transverse rib, and the first end of the fourth transverse rib in the first direction being connected to an end of the second rib segment away from the first rib segment; The second vertical ribs are arranged at intervals on a side of the first vertical rib away from the collapsed portion, and the second transverse ribs and the fourth transverse ribs are connected to the second vertical ribs at second ends in the first direction.

6. The frame according to claim 5, characterized in that The sealing portion further includes a buffer rib, the extension direction of the buffer rib is perpendicular to the first direction, the buffer rib is connected to the second end of the third transverse rib in the first direction, and the buffer rib is closely connected to the second vertical rib.

7. The frame according to claim 6, characterized in that: The dimension of the buffer rib in the second direction is H1, wherein H1≥3mm.

8. The frame according to claim 3, characterized in that: The mounting portion includes a fifth transverse rib and a sixth transverse rib arranged at intervals along the second direction, the ends of the first oblique rib and the second oblique rib away from the sealing portion are connected to the end of the fifth transverse rib adjacent to the sealing portion, and the end of the sixth transverse rib adjacent to the sealing portion is connected to the end of the first transverse rib away from the sealing portion.

9. The frame according to claim 3, characterized in that: The second collapse cavity is communicated with the inner cavity formed around the mounting portion.

10. The frame according to claim 3, characterized in that: The extending direction of the first oblique rib forms an angle a with the second direction, and the extending direction of the second oblique rib forms an angle b with the first direction, wherein 20°≤a≤75°, and / or 10°≤b≤75°.

11. The frame according to claim 10, characterized in that: 45°≤a≤60°, and / or, 30°≤b≤45.

12. The frame according to claim 1, wherein: The outer fillet and inner fillet radii of the sealing portion at the corner positions are R1 and R2 respectively, wherein R1>2mm and R2>2mm.

13. The frame according to claim 1, wherein: The maximum dimension of the sealing portion in the first direction is W1, the maximum dimension of the collapse portion in the first direction is W2, and the maximum dimension of the mounting portion in the first direction is W3, wherein 25 mm ≤ W1 ≤ 35 mm, W2 > 0.5*M1, and W1 > W3 > 0.5*W2; And / or, the maximum dimension of the mounting portion in the height direction is H2, wherein H2>3mm.

14. A battery pack, characterized in that: Comprising a frame according to any one of claims 1-13.

15. A vehicle, characterized in that: Comprising the battery pack according to claim 14.

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