Frame and vehicle

Abstract

The frame comprises longitudinal beams, a plurality of cross beams, a mounting cross beam and a battery pack protection longitudinal beam, the cross beams are connected between the two opposite longitudinal beams respectively and distributed at intervals in the longitudinal direction, the mounting cross beam is connected between the two opposite longitudinal beams and arranged on the rear sides of the cross beams, and the battery pack protection longitudinal beam is arranged between the mounting cross beam and the battery pack protection longitudinal beam. The installation cross beam is provided with a battery pack installation part, and the battery pack protection longitudinal beam is connected to the installation cross beam and extends backwards. By arranging the mounting cross beam on the rear side of the cross beam, arranging the battery pack protection longitudinal beam on the mounting cross beam and extending backwards, the battery pack can be protected from being damaged by rear-end collision, and short circuit or fire of the battery pack can be avoided; therefore, the performance of the battery pack can be ensured, the service life of the battery pack can be prolonged, and the safety of a vehicle can be improved.

Description

Technical Field

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

[0002] At present, non-load-bearing vehicle models include a body and a frame, and non-load-bearing vehicle models powered by new energy are developing rapidly.

[0003] In the related art, the battery pack is set on the frame. If the vehicle collides or rear-ends, the frame is not strong enough and the battery pack will be squeezed, causing the battery pack to short-circuit or catch fire, thereby affecting the safety of the vehicle. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a vehicle frame that can protect the battery pack from rear-end collision, thereby preventing the battery pack from short-circuiting or catching fire, thereby improving the safety of the vehicle.

[0005] The utility model further provides a vehicle.

[0006] The vehicle frame according to the utility model includes: a longitudinal beam, a plurality of cross beams, a mounting cross beam and a battery pack protection longitudinal beam, the plurality of cross beams are respectively connected between two opposite longitudinal beams and are distributed at intervals along the longitudinal direction, the mounting cross beam is connected between two opposite longitudinal beams and is arranged on the rear side of the plurality of cross beams, the mounting cross beam is provided with a battery pack mounting portion, and the battery pack protection longitudinal beam is connected to the mounting cross beam and extends rearward.

[0007] According to the vehicle frame of the utility model, a mounting crossbeam is arranged on the rear side of the crossbeam, a battery pack protection longitudinal beam is arranged on the mounting crossbeam, and the battery pack protection longitudinal beam extends backward. Such an arrangement can protect the battery pack from damage caused by rear-end collision, and can also prevent the battery pack from short circuiting or catching fire, thereby ensuring the performance of the battery pack and extending the service life of the battery pack, thereby improving the safety of the vehicle.

[0008] In some examples of the present invention, there are multiple battery pack protection longitudinal beams, and the multiple battery pack protection longitudinal beams are evenly arranged at laterally intervals along the mounting cross beam.

[0009] In some examples of the present invention, the battery pack protection longitudinal beam includes: an upper beam body and a lower beam body, the front end of the upper beam body is connected to the mounting cross beam, the front end of the lower beam body is connected to the mounting cross beam, and the lower beam body is located below the upper beam body and connected to the upper beam body.

[0010] In some examples of the present invention, the upper beam body includes: an upper beam plate and an upper flange, the front end of the upper beam plate is connected to the mounting beam, and the upper flange is connected to the opposite laterally sides of the upper beam plate; the lower beam body includes: a lower beam plate and a lower flange, the front end of the lower beam plate is connected to the mounting beam, the lower flange is connected to the opposite laterally sides of the lower beam plate, and the upper flange and the lower flange are connected one-to-one.

[0011] In some examples of the present invention, the front end of the upper beam plate is connected to the top surface of the mounting beam, the front end of the lower beam plate is connected to the bottom surface of the mounting beam, and the upper flange and the lower flange are respectively connected to the rear side surface of the mounting beam.

[0012] In some examples of the present invention, the battery pack protection longitudinal beam includes a first section and a second section in the direction from front to rear, the width of the first section decreases in the direction from front to rear, and the width of the second section remains unchanged.

[0013] In some examples of the present invention, one side surface of the first segment is coplanar with one side surface of the second segment, and the other side surface of the first segment is inclined relative to the other side surface of the second segment.

[0014] In some examples of the present invention, the rear end of the battery pack protection longitudinal beam does not protrude beyond the rear end of the longitudinal beam in the direction from front to rear.

[0015] In some examples of the present invention, the mounting cross beam includes: a main beam body and a mounting bracket, and the mounting bracket is respectively connected between the main beam body and the longitudinal beam.

[0016] The vehicle according to the present utility model comprises: the vehicle frame and the battery pack as mentioned above, wherein the battery pack is connected to the battery pack mounting portion.

[0017] Compared with the prior art, the vehicle provided by the utility model adopts a method of setting an installation crossbeam on the rear side of the crossbeam, and a battery pack protection longitudinal beam is set on the installation crossbeam, and the battery pack protection longitudinal beam extends backward. On this basis, the structural strength of the battery pack protection longitudinal beam and the installation crossbeam is utilized. Such an arrangement can protect the battery pack from damage caused by rear-end collision, and can also prevent the battery pack from short circuiting or catching fire, thereby ensuring the performance of the battery pack and extending the service life of the battery pack, thereby improving the safety of the vehicle.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a schematic diagram of the first angle structure of the frame according to an embodiment of the utility model;

[0021] Figure 2 is a schematic diagram of the second angle structure of the frame according to an embodiment of the utility model;

[0022] Figure 3 It is a partial structural schematic diagram of a frame according to an embodiment of the utility model;

[0023] Figure 4 This is an enlarged view of A.

[0024] Reference numerals:

[0025] 100, frame;

[0026] 10. Longitudinal beam; 20. Cross beam; 30. Install cross beam; 31. Main beam body; 32. Install bracket; 33. Sleeve; 40. Battery pack protection longitudinal beam; 41. Upper beam body; 42. Lower beam body; 43. Upper beam plate; 44. Upper flange; 45. Lower beam plate; 46. Lower flange; 47. First section; 48. Second section;

[0027] 200. Battery pack. DETAILED DESCRIPTION

[0028] The embodiments of the present utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model are described in detail below.

[0029] Reference below Figure 1-Figure 4 A vehicle frame 100 according to an embodiment of the present invention is described. The vehicle frame 100 is applied to a vehicle.

[0030] like Figure 1-Figure 3 As shown, the vehicle frame 100 according to the utility model includes: a longitudinal beam 10, a plurality of cross beams 20, a mounting cross beam 30 and a battery pack protection longitudinal beam 40, the plurality of cross beams 20 are respectively connected between two opposite longitudinal beams 10 and are distributed at intervals along the longitudinal direction, the mounting cross beam 30 is connected between two opposite longitudinal beams 10 and is arranged on the rear side of the plurality of cross beams 20, the mounting cross beam 30 is provided with a battery pack mounting portion, and the battery pack protection longitudinal beam 40 is connected to the mounting cross beam 30 and extends backward.

[0031] It can be understood that the longitudinal beam 10, multiple cross beams 20, the installation cross beam 30 and the battery pack protection longitudinal beam 40 constitute the main structure of the frame 100. The longitudinal beams 10 are arranged at intervals on the left and right. The multiple cross beams 20 are located between the longitudinal beams 10 on the left and right sides, and the left ends of the multiple cross beams 20 are connected to the left longitudinal beam 10, and the right ends of the multiple cross beams 20 are connected to the right longitudinal beam 10. The multiple cross beams 20 are arranged at intervals front and back, so that the multiple cross beams 20 and the longitudinal beams 10 can form a frame structure, thereby improving the overall structural strength of the frame 100 and facilitating the installation of other components on the frame 100.

[0032] The mounting cross beam 30 is located between the left and right longitudinal beams 10, the left end of the mounting cross beam 30 is connected to the left longitudinal beam 10, and the right end of the mounting cross beam 30 is connected to the right longitudinal beam 10, so that the mounting cross beam 30 and the longitudinal beam 10 form a frame structure, thereby improving the overall structural strength of the frame 100, and the mounting cross beam 30 is located at the rear side of the plurality of cross beams 20, so that the mounting cross beam 30 can resist rear-end collision, thereby improving the structural strength of the frame 100.

[0033] In addition, a battery pack mounting portion is provided on the upper side of the mounting crossbeam 30, and the battery pack 200 is mounted on the battery pack mounting portion, so that the battery pack 200 and the frame 100 can be connected, and then the mounting pack can be set on the frame 100 to use the energy in the battery pack 200. A battery pack protection longitudinal beam 40 is provided on the surface of the mounting crossbeam 30, and the front end of the battery pack protection longitudinal beam 40 is connected to the mounting crossbeam 30, and the rear end of the battery pack protection longitudinal beam 40 extends backward, so that the battery pack protection longitudinal beam 40 can bulge backward relative to the mounting crossbeam 30. When a rear-end collision occurs behind the vehicle, During a collision, the rear end of the vehicle is subjected to a forward impact force, at which point the battery pack protection longitudinal beam 40 is first subjected to the impact force, which is then transmitted to the mounting cross beam 30, which in turn transmits the force to the longitudinal beams 10 on the left and right sides, thereby allowing the battery pack protection longitudinal beam 40, the mounting cross beam 30 and the longitudinal beam 10 to form a force transmission channel, which can protect the battery pack 200 from being harmed by the impact force and ensure that the battery pack 200 will not be squeezed, thereby ensuring the performance of the battery pack 200 and extending the service life of the battery pack 200, thereby improving the safety of the vehicle.

[0034] In particular, compared with the traditional frame 100 assembly (the power battery is only directly installed on the vehicle body floor or connected to the vehicle body floor through a simple bracket), the embodiment in this case arranges a mounting beam 30 behind the multiple beams 20, and arranges a battery pack mounting portion on the mounting beam 30, so that the battery pack 200 can be easily installed on the mounting beam 30, and a battery pack protection longitudinal beam 40 is arranged toward the rear side of the mounting beam 30. This arrangement can protect the battery pack 200 from damage caused by rear-end collisions, and can also prevent the battery pack 200 from short circuiting or catching fire, thereby ensuring the performance of the battery pack 200 and extending the service life of the battery pack 200, thereby improving the safety of the vehicle.

[0035] For example, a sleeve 33 is provided on the battery pack mounting portion, so that the sleeve 33 can be located on the mounting beam 30, the lower side of the sleeve 33 is provided in the battery pack mounting portion, and the upper side of the sleeve 33 is connected to the battery pack, so that the battery pack 200 can be connected to the mounting beam 30, and carbon dioxide gas shielded welding is adopted between the sleeve 33 and the mounting beam 30, and carbon dioxide gas shielded welding is also adopted between the mounting beam 30 and the battery pack protection longitudinal beam 40. The longitudinal beam 10, multiple beams 20, the mounting beam 30 and the battery pack protection longitudinal beam 40 are all made of different materials such as steel, aluminum, magnesium, and carbon fiber, and the longitudinal beam 10, multiple beams 20, the mounting beam 30 and the battery pack protection longitudinal beam 40 are all made of screw connection, casting, extrusion molding, stamping molding and other molding processes, thereby improving the overall structural strength of the frame 100 and preventing the battery pack from being damaged.

[0036] Therefore, by setting an installation beam 30 on the rear side of the beam 20, and setting a battery pack protection longitudinal beam 40 on the installation beam 30, and the battery pack protection longitudinal beam 40 extends backward, such a setting can protect the battery pack 200 from being damaged by a rear-end collision, and can also prevent the battery pack 200 from short circuiting or catching fire, thereby ensuring the performance of the battery pack 200 and extending the service life of the battery pack 200, thereby improving the safety of the vehicle.

[0037] Among them, Figure 1-Figure 3As shown, there are multiple battery pack protection longitudinal beams 40, and the multiple battery pack protection longitudinal beams 40 are evenly arranged at intervals laterally along the installation cross beam 30. That is to say, the front ends of the multiple battery pack protection longitudinal beams 40 are connected to the mounting cross beam 30, and the multiple battery pack protection longitudinal beams 40 extend backward, so that the battery pack protection longitudinal beams 40 can bulge backward relative to the mounting cross beam 30, and the multiple battery pack protection longitudinal beams 40 are evenly spaced. Such an arrangement can increase the protection area of ​​the battery pack 200 by the multiple battery pack protection longitudinal beams 40. When a rear-end collision occurs from the rear of the vehicle, the rear end of the vehicle is subjected to a forward impact force. At this time, the multiple battery pack protection longitudinal beams 40 are first subjected to the impact force, and the impact force is transmitted to the mounting cross beam 30, and the mounting cross beam 30 is then transmitted to the longitudinal beams 10 on the left and right sides, so that the multiple battery pack protection longitudinal beams 40, the mounting cross beam 30 and the longitudinal beam 10 can form a force transmission channel, which can protect the battery pack 200 from the harm of the impact force and ensure that the battery pack 200 will not be squeezed, thereby ensuring the performance of the battery pack 200 and extending the service life of the battery pack 200, thereby improving the safety of the vehicle. For example, there are three battery pack protection longitudinal beams 40 , which can increase the area of ​​the battery pack protection longitudinal beams 40 that resist impact force.

[0038] In addition, if Figure 4 As shown, the battery pack protection longitudinal beam 40 includes: an upper beam body 41 and a lower beam body 42, the front end of the upper beam body 41 is connected to the mounting cross beam 30, the front end of the lower beam body 42 is connected to the mounting cross beam 30, and the lower beam body 42 is located below the upper beam body 41 and connected to the upper beam body 41. It can be understood that the upper beam body 41 and the lower beam body 42 constitute the main structure of the battery pack protection longitudinal beam 40, the front end of the upper beam body 41 is connected to the upper side and rear side of the mounting cross beam 30, and the front end of the lower beam body 42 is connected to the lower side and rear side of the mounting cross beam 30, so that the battery pack protection longitudinal beam 40 can be connected to the three side surfaces of the mounting cross beam 30, thereby improving the connection strength between the battery pack protection longitudinal beam 40 and the mounting cross beam 30, and the upper beam body 41 is connected to the left and right sides of the lower beam body 42, so that the battery pack protection longitudinal beam 40 can form a whole, and then the battery pack protection longitudinal beam 40 can withstand the impact force from the rear.

[0039] Among them, Figure 4 As shown, the upper beam body 41 includes: an upper beam plate 43 and an upper flange 44, the front end of the upper beam plate 43 is connected to the mounting beam 30, and the upper flange 44 is connected to the opposite lateral sides of the upper beam plate 43; the lower beam body 42 includes: a lower beam plate 45 and a lower flange 46, the front end of the lower beam plate 45 is connected to the mounting beam 30, and the lower flange 46 is connected to the opposite lateral sides of the lower beam plate 45, and the upper flange 44 and the lower flange 46 are connected one-to-one.

[0040] That is to say, the upper beam plate 43 and the upper flange 44 constitute the main structure of the upper beam body 41, the front end of the upper beam plate 43 is connected to the upper side of the mounting cross beam 30, the upper flange 44 is located on the left and right sides of the upper beam plate 43, and the upper flange 44 is connected to the rear side of the mounting cross beam 30, so as to improve the strength between the battery pack protection longitudinal beam 40 and the mounting cross beam 30, thereby protecting the battery pack 200 from the risk of rear-end collision with the rear vehicle, and the lower beam plate 45 and the lower flange 46 constitute the main structure of the lower beam body 42, the front end of the lower beam plate 45 is connected to the lower side of the mounting cross beam 30, the lower flange 46 is located on the left and right sides of the lower beam plate 45, and the lower flange 46 is connected to the mounting cross beam 30. The rear side of the mounting crossbeam 30 is connected, thereby improving the strength between the battery pack protection longitudinal beam 40 and the mounting crossbeam 30, and further protecting the battery pack 200 from the risk of rear-end collision with the rear vehicle, and the upper flange 44 and the lower flange 46 are arranged relatively to each other up and down, so that the battery pack protection longitudinal beam 40 can be connected to the upper side, rear side and lower side of the mounting crossbeam 30. This arrangement can form a closed structure with the front ends of the upper beam body 41 and the lower beam body 42 and the mounting crossbeam 30, and an opening is formed at the rear ends of the upper beam body 41 and the lower beam body 42, so that the battery pack protection longitudinal beam 40 can form a cavity, thereby improving the structural strength of the battery pack protection longitudinal beam 40.

[0041] In particular, if Figure 4 As shown, the front end of the upper beam plate 43 is connected to the top surface of the mounting beam 30 , the front end of the lower beam plate 45 is connected to the bottom surface of the mounting beam 30 , and the upper flange 44 and the lower flange 46 are respectively connected to the rear side surface of the mounting beam 30 . It can be understood that the front end of the upper beam plate 43 is connected to the upper side of the mounting crossbeam 30, the upper flange 44 is located on the left and right sides of the upper beam plate 43, and the upper flange 44 is connected to the rear side of the mounting crossbeam 30, thereby improving the strength between the battery pack protection longitudinal beam 40 and the mounting crossbeam 30, thereby protecting the battery pack 200 from the risk of rear-end collision with the rear vehicle. The lower beam plate 45 and the lower flange 46 constitute the main structure of the lower beam body 42, the front end of the lower beam plate 45 is connected to the lower side of the mounting crossbeam 30, the lower flange 46 is located on the left and right sides of the lower beam plate 45, and the lower flange 46 is connected to the rear side of the mounting crossbeam 30, thereby improving the strength between the battery pack protection longitudinal beam 40 and the mounting crossbeam 30, thereby protecting the battery pack 200 from the risk of rear-end collision with the rear vehicle.

[0042] In addition, if Figure 4As shown, the battery pack protection longitudinal beam 40 includes a first section 47 and a second section 48 in the direction from front to rear. The width of the first section 47 decreases in the direction from front to rear, and the width of the second section 48 remains unchanged. That is to say, the portion of the battery pack protection longitudinal beam 40 close to the mounting cross beam 30 is the first section 47, and the portion away from the mounting cross beam 30 is the second section 48. The first section 47 and the second section 48 are connected in sequence along the front-to-back direction, so that the front-to-back direction of the battery pack protection longitudinal beam 40 can be continuous, thereby improving the structural strength of the battery pack protection longitudinal beam 40. The position of the first section 47 close to the mounting cross beam 30 is lower than the position away from the mounting cross beam 30. This arrangement can make the width of the first section 47 decrease from front to rear, and the width of the second section 48 remains unchanged. The end of the first section 47 away from the mounting cross beam 30 is connected to the second section 48. This arrangement can ensure that the structural strength of the portion of the battery pack protection longitudinal beam 40 close to the mounting cross beam 30 is large, so that when the battery pack protection longitudinal beam 40 is rear-ended by a vehicle behind, the battery pack protection longitudinal beam 40 will transfer the impact force to the mounting cross beam 30, thereby preventing the battery pack 200 from being damaged.

[0043] In particular, if Figure 4 As shown, one side surface of the first section 47 is coplanar with one side surface of the second section 48, and the other side surface of the first section 47 is inclined relative to the other side surface of the second section 48. It can be understood that the upper side of the first section 47 and the upper side surface of the second section 48 are coplanar, so that the upper side of the battery pack protection beam 40 can be smooth, thereby ensuring the structural strength of the battery pack protection beam 40, the lower side of the first section 47 is inclined relative to the lower side of the second section 48, and the position of the first section 47 close to the mounting beam 30 is lower than the position away from the mounting beam 30. This arrangement can ensure that the structural strength of the part of the battery pack protection beam 40 close to the mounting beam 30 is large, so that when the battery pack protection beam 40 is hit by a rear-end collision with a rear vehicle, the battery pack protection beam 40 transmits the impact force to the mounting beam 30, thereby preventing the battery pack 200 from being damaged.

[0044] In addition, if Figure 1-Figure 3 As shown, the rear end of the battery pack protection longitudinal beam 40 does not protrude from the rear end of the longitudinal beam 10 in the direction from front to rear. In other words, the rear end of the longitudinal beam 10 protrudes from the rear end of the battery pack protection longitudinal beam 40, so that the rear end of the longitudinal beam 10 can protect the rear end of the battery pack protection longitudinal beam 40, thereby preventing the wear of the battery pack protection longitudinal beam 40, and also can make the impact force first transferred to the longitudinal beam 10 when the rear vehicle collides with the rear vehicle, and then the impact force is transferred to the battery pack protection longitudinal beam 40 when the rear vehicle continues to move forward, and finally the impact force is transferred to the installation cross beam 30, so that when the battery pack protection longitudinal beam 40 is rear-ended by the rear vehicle, the battery pack protection longitudinal beam 40 transfers the impact force to the installation cross beam 30, thereby preventing the battery pack 200 from being damaged.

[0045] In addition, Figure 4 As shown, the mounting crossbeam 30 includes: a main beam body 31 and a mounting bracket 32, and the mounting bracket 32 ​​is respectively connected between the main beam body 31 and the longitudinal beam 10. It can be understood that the main beam body 31 and the mounting bracket 32 ​​constitute the main structure of the mounting crossbeam 30, and the mounting bracket 32 ​​is located on the left and right sides of the main beam body 31. This arrangement allows the mounting bracket 32 ​​to limit the main beam body 31. The mounting bracket 32 ​​located on the left is connected between the left longitudinal beam 10 and the left end of the main beam body 31, and the mounting bracket 32 ​​located on the right is connected between the right longitudinal beam 10 and the right end of the main beam body 31, so that the mounting bracket 32 ​​can improve the connection strength between the mounting crossbeam 30 and the longitudinal beam 10, thereby improving the overall structural strength of the frame 100 and protecting the battery pack 200 from damage.

[0046] The vehicle according to the utility model comprises: the frame 100 and the battery pack 200 of the above embodiment, and the battery pack 200 is connected to the battery pack mounting portion. By arranging the mounting crossbeam 30 on the rear side of the crossbeam 20, the battery pack protection longitudinal beam 40 is arranged on the mounting crossbeam 30, and the battery pack protection longitudinal beam 40 extends backward, such an arrangement can protect the battery pack 200 from being damaged by rear-end collision, and can also prevent the battery pack 200 from short circuit or fire, so as to ensure the performance of the battery pack 200 and extend the service life of the battery pack 200, thereby improving the safety of the vehicle.

[0047] 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", "axial", "radial", "circumferential" and the like 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means 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 utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0050] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vehicle frame (100), characterized in that: include: Stringer (10); A plurality of cross beams (20), wherein the plurality of cross beams (20) are respectively connected between two opposite longitudinal beams (10) and are spaced apart in the longitudinal direction; A mounting crossbeam (30), the mounting crossbeam (30) being connected between two opposite longitudinal beams (10) and being arranged at the rear side of the plurality of crossbeams (20), the mounting crossbeam (30) being provided with a battery pack mounting portion; A battery pack protection longitudinal beam (40), the battery pack protection longitudinal beam (40) is connected to the mounting cross beam (30) and extends rearward.

2. The frame (100) according to claim 1, characterized in that: There are a plurality of battery pack protection longitudinal beams (40), and the plurality of battery pack protection longitudinal beams (40) are evenly arranged at laterally intervals along the mounting crossbeam (30).

3. The frame (100) according to claim 1, characterized in that: The battery pack protection longitudinal beam (40) comprises: An upper beam body (41), the front end of the upper beam body (41) being connected to the mounting cross beam (30); A lower beam body (42), the front end of which is connected to the mounting cross beam (30), and the lower beam body (42) is located below the upper beam body (41) and connected to the upper beam body (41).

4. The frame (100) according to claim 3, characterized in that: The upper beam body (41) comprises: An upper beam plate (43), the front end of the upper beam plate (43) being connected to the mounting crossbeam (30); An upper flange (44), the upper flange (44) being connected to two opposite transverse sides of the upper beam plate (43); The lower beam body (42) comprises: A lower beam plate (45), the front end of which is connected to the mounting crossbeam (30); The lower flange (46) is connected to two opposite transverse sides of the lower beam plate (45), and the upper flange (44) and the lower flange (46) are connected in a one-to-one correspondence.

5. The frame (100) according to claim 4, characterized in that: The front end of the upper beam plate (43) is connected to the top surface of the mounting crossbeam (30), the front end of the lower beam plate (45) is connected to the bottom surface of the mounting crossbeam (30), and the upper flange (44) and the lower flange (46) are respectively connected to the rear side surface of the mounting crossbeam (30).

6. The frame (100) according to claim 1, characterized in that: The battery pack protection longitudinal beam (40) comprises a first section (47) and a second section (48) in the direction from front to rear, the width of the first section (47) decreases in the direction from front to rear, and the width of the second section (48) remains unchanged.

7. The frame (100) according to claim 6, characterized in that: One side surface of the first section (47) is coplanar with one side surface of the second section (48), and the other side surface of the first section (47) is inclined relative to the other side surface of the second section (48).

8. The frame (100) according to claim 1, characterized in that: The rear end of the battery pack protection longitudinal beam (40) does not protrude beyond the rear end of the longitudinal beam (10) in the direction from front to rear.

9. The frame (100) according to claim 1, characterized in that: The mounting crossbeam (30) comprises: Main beam body (31); A mounting bracket (32) is respectively connected between the main beam body (31) and the longitudinal beam (10).

10. A vehicle, characterized in that: include: The frame (100) according to any one of claims 1 to 9; A battery pack (200), the battery pack (200) being connected to the battery pack mounting portion.

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