Battery box frame, battery pack and vehicle

Abstract

The utility model discloses a battery box frame, battery pack and vehicle, battery box frame includes left longitudinal beam, middle longitudinal beam, right longitudinal beam, front frame beam and rear frame beam, left longitudinal beam, middle longitudinal beam and right longitudinal beam are arranged along the first direction at interval, the both ends of front frame beam are connected with the first end of left longitudinal beam and the first end of right longitudinal beam respectively, and the both ends of rear frame beam are connected with the second end of right longitudinal beam respectively. The two ends of the rear frame beam are connected with the second end of the left longitudinal beam and the second end of the right longitudinal beam respectively, the first end of the middle longitudinal beam is mechanically connected and bonded with the front frame beam, and the second end of the middle longitudinal beam is mechanically connected and bonded with the rear frame beam. The battery box frame provided by the utility model has the advantages of high structural strength and capability of meeting the light weight requirement of a vehicle.

Description

Technical Field

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

[0002] In order to ensure the structural strength of the battery box frame, the horizontal and vertical beams are often welded at the local position of the battery box frame with greater load bearing. However, in the related art, the horizontal and vertical beams in the battery box frame are all extruded aluminum profiles. Due to the cavity structure of the aluminum profile, the wall thickness of the aluminum profile is limited. When the horizontal and vertical beams are welded to the frame, it is easy to cause welding perforation, which will affect the structural strength of the battery box frame. If the wall thickness of the aluminum profile is increased, it is not easy to meet the lightweight requirements of the vehicle. 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 utility model proposes a battery box frame, which has the advantages of high structural strength and meets the lightweight requirements of the vehicle.

[0005] An embodiment of the present invention further provides a battery pack.

[0006] The embodiment of the utility model further provides a vehicle.

[0007] According to an embodiment of the utility model, the battery box frame includes a left longitudinal beam, a middle longitudinal beam, a right longitudinal beam, a front frame beam and a rear frame beam, wherein the left longitudinal beam, the middle longitudinal beam and the right longitudinal beam are arranged at intervals along a first direction; the two ends of the front frame beam are respectively connected to the first end of the left longitudinal beam and the first end of the right longitudinal beam, the two ends of the rear frame beam are respectively connected to the second end of the left longitudinal beam and the second end of the right longitudinal beam, the first end of the middle longitudinal beam is mechanically connected and bonded to the front frame beam, and the second end of the middle longitudinal beam is mechanically connected and bonded to the rear frame beam.

[0008] According to the battery box frame of the embodiment of the utility model, the middle longitudinal beam is mechanically connected and bonded to each of the front frame beam and the rear frame beam. Compared with welding, the above connection method of the middle longitudinal beam will not damage the structure of the middle longitudinal beam, the front frame beam and the rear frame beam, and effectively ensure that the middle longitudinal beam improves the structural strength of the battery box frame. Moreover, the middle longitudinal beam is connected to each of the front frame beam and the rear frame beam using two connection methods, and the connection strength between the middle longitudinal beam and each of the front frame beam and the rear frame beam is higher, thereby further improving the structural strength of the battery box frame.

[0009] In some embodiments, the battery box frame also includes a middle cross beam, which is located between the front frame beam and the rear frame beam, and the two ends of the middle cross beam are respectively connected to the left longitudinal beam and the right longitudinal beam, and the middle cross beam is mechanically connected and bonded to the middle longitudinal beam.

[0010] In some embodiments, the first end of the center longitudinal beam is mechanically connected to the front frame beam through a screw or a rivet, and the second end of the center longitudinal beam is mechanically connected to the rear frame beam through a screw or a rivet.

[0011] In some embodiments, the center longitudinal beam is mechanically connected to the center cross beam by screws or rivets.

[0012] In some embodiments, the first end and the second end of the middle cross beam are respectively provided with a first flange and a second flange, the first flange is welded to the inner side surface of the left longitudinal beam, and the second flange is welded to the inner side surface of the right longitudinal beam.

[0013] In some embodiments, the middle cross beam is integrally die-cast, and the middle cross beam is integrated with a first vehicle mounting point and a positioning pin for assembly guide positioning.

[0014] In some embodiments, the front frame beam is integrally die-cast and includes a front side beam, a front cross beam and a first longitudinal beam; the front side beam is located on the side of the front cross beam away from the rear frame beam, the two ends of the front side beam are respectively connected to the two ends of the front cross beam, and a front cavity is formed between the front side beam and the front cross beam; the first longitudinal beam is located in the front cavity, the two ends of the first longitudinal beam are respectively connected to the front side beam and the front cross beam, and a second vehicle mounting point is provided on at least one of the front side beam, the front cross beam and the first longitudinal beam.

[0015] In some embodiments, the front frame beam further comprises a first mounting bracket for mounting and fixing at least one of the power control assembly, the upper cover, the bottom guard plate and the cooling assembly, wherein the first mounting bracket is arranged on the first longitudinal beam;

[0016] And / or, the second vehicle mounting point is arranged on a side of the front side beam away from the front cross beam.

[0017] In some embodiments, the rear frame beam is integrally die-cast and includes a rear side beam, a rear cross beam and a second longitudinal beam, the rear side beam is located on the side of the rear cross beam away from the front frame beam, the two ends of the rear side beam are respectively connected to the two ends of the rear cross beam, and a rear cavity is formed between the rear side beam and the rear cross beam; the second longitudinal beam is located in the rear cavity, the two ends of the second longitudinal beam are respectively connected to the rear side beam and the rear cross beam, and a third vehicle mounting point is provided on at least one of the rear side beam, the rear cross beam and the second longitudinal beam.

[0018] In some embodiments, the rear side beam is provided with a connector mounting hole;

[0019] And / or, the third vehicle mounting point is arranged on the second longitudinal beam;

[0020] And / or, the rear frame beam further comprises a second mounting bracket for mounting and fixing at least one of the power control component, the upper cover, the bottom guard plate and the cooling component, and the second mounting bracket is arranged on the second longitudinal beam.

[0021] The battery pack according to an embodiment of the present invention comprises a battery module and a battery box frame as described in any of the above embodiments, wherein the battery module is installed in the battery box frame.

[0022] The technical advantages of the battery pack according to the embodiment of the utility model are the same as the technical advantages of the battery box frame of the above-mentioned embodiment, which will not be repeated here.

[0023] A vehicle according to an embodiment of the present invention includes a battery pack as described in the above embodiment.

[0024] The technical advantages of the vehicle according to the embodiment of the utility model are the same as the technical advantages of the battery pack in the above-mentioned embodiment, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a battery box frame according to an embodiment of the utility model.

[0026] Figure 2 It is an exploded view of a battery box frame according to an embodiment of the utility model.

[0027] Figure 3 It is another schematic diagram of the battery box frame according to an embodiment of the utility model, in which the middle longitudinal beam is hidden.

[0028] Figure 4 yes Figure 3 A is an enlarged view of the middle image.

[0029] Figure 5 yes Figure 3 Enlarged view of B.

[0030] Figure 6 yes Figure 3 Enlarged view of C in the middle.

[0031] Figure 7 yes Figure 3 Enlarged view of D in the middle.

[0032] Figure 8 yes Figure 3 Enlarged view of E.

[0033] Fig. 9 yes Figure 3Enlarged view of F.

[0034] Fig.10 is another exploded view of the battery box frame according to an embodiment of the utility model.

[0035] Fig.11 yes Fig.10 Enlarged view of G in the middle.

[0036] Fig.12 yes Fig.10 Magnified view of H in the middle.

[0037] Reference numerals:

[0038] 100. Battery box frame; 1. Left longitudinal beam; 2. Middle longitudinal beam; 3. Right longitudinal beam; 4. Front frame beam; 41. Front side beam; 42. Front cross beam; 43. First longitudinal beam; 44. First mounting bracket; 45. Second vehicle mounting point; 5. Rear frame beam; 51. Rear side beam; 511. Plug-in mounting hole; 52. Rear cross beam; 53. Second longitudinal beam; 54. Third vehicle mounting point; 55. Second mounting bracket; 6. Middle cross beam; 61. First flange; 62. Second flange; 63. First vehicle mounting point; 64. Locating pin; 7. Fastener; 8. Structural adhesive. DETAILED DESCRIPTION

[0039] 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 cannot be understood as limiting the present invention.

[0040] Combine the following Figure 1-Figure 12 A battery box frame 100 according to an embodiment of the present invention is described.

[0041] The battery box frame 100 according to the embodiment of the utility model includes a left longitudinal beam 1, a middle longitudinal beam 2, a right longitudinal beam 3, a front frame beam 4 and a rear frame beam 5. The left longitudinal beam 1, the middle longitudinal beam 2 and the right longitudinal beam 3 are arranged at intervals along the first direction. The two ends of the front frame beam 4 are respectively connected to the first end of the left longitudinal beam 1 and the first end of the right longitudinal beam 3, the two ends of the rear frame beam 5 are respectively connected to the second end of the left longitudinal beam 1 and the second end of the right longitudinal beam 3, the first end of the middle longitudinal beam 2 is mechanically connected and bonded to the front frame beam 4, and the second end of the middle longitudinal beam 2 is mechanically connected and bonded to the rear frame beam 5.

[0042] According to the battery box frame 100 of the embodiment of the utility model, the middle longitudinal beam 2 is mechanically connected and bonded to each of the front frame beam 4 and the rear frame beam 5. Compared with welding, the above connection method of the middle longitudinal beam 2 will not damage the structure of the middle longitudinal beam 2, the front frame beam 4 and the rear frame beam 5, and effectively ensure that the middle longitudinal beam 2 improves the structural strength of the battery box frame 100. Moreover, the middle longitudinal beam 2 is connected to each of the front frame beam 4 and the rear frame beam 5 using two connection methods, and the connection strength between the middle longitudinal beam 2 and each of the front frame beam 4 and the rear frame beam 5 is higher, thereby further improving the structural strength of the battery box frame 100.

[0043] It should be noted that the first end of the middle longitudinal beam 2 is bonded to the front frame beam 4 by structural adhesive, and the second end of the middle longitudinal beam 2 is bonded to the rear frame beam 5 by structural adhesive. In order to further improve the structural strength of the battery box frame 100, there are at least two middle longitudinal beams 2 and they are arranged at intervals along the first direction, wherein the first direction is the left-right direction of the battery box frame 100. Specifically, Figure 1 and Figure 2 As shown, there are two middle longitudinal beams 2, and the left longitudinal beam 1, the two middle longitudinal beams 2 and the right longitudinal beam 3 are arranged at equal intervals along the first direction.

[0044] For ease of understanding, Figure 1 The direction indicated by the middle arrow I is the first direction of the battery box frame 100 according to the embodiment of the present utility model.

[0045] In some embodiments, Figure 1-Figure 3 As shown, the battery box frame 100 also includes a middle cross beam 6, which is located between the front frame beam 4 and the rear frame beam 5, and the two ends of the middle cross beam 6 are respectively connected to the left longitudinal beam 1 and the right longitudinal beam 3, and the middle cross beam 6 is mechanically connected and bonded to the middle longitudinal beam 2.

[0046] The connection between the middle cross beam 6 and each of the left longitudinal beam 1, the right longitudinal beam 3 and the middle longitudinal beam 2 further improves the structural strength of the battery box frame 100. At the same time, the middle cross beam 6 and the middle longitudinal beam 2 are mechanically connected and bonded, that is, the two are connected in two ways. The structural strength between the middle cross beam 6 and the middle longitudinal beam 2 is higher and more stable.

[0047] Specifically, the middle cross beam 6 is bonded to the middle longitudinal beam 2 by structural adhesive.

[0048] In some embodiments, the first end of the middle longitudinal beam 2 is mechanically connected to the front frame beam 4 through a threaded member or a rivet, the second end of the middle longitudinal beam 2 is mechanically connected to the rear frame beam 5 through a threaded member or a rivet, and the middle longitudinal beam 2 is mechanically connected to the middle cross beam 6 through a threaded member or a rivet. That is, the middle longitudinal beam 2 is detachably connected to each of the front frame beam 4, the middle cross beam 6 and the rear frame beam 5 through a threaded member or a rivet. At this time, the middle longitudinal beam 2 is bonded to each of the front frame beam 4, the middle cross beam 6 and the rear frame beam 5 to ensure the structural strength of the battery box frame 100, while the assembly of the middle longitudinal beam 2 is convenient and reliable.

[0049] In some embodiments, Figure 10-12 As shown, the battery box frame 100 also includes bolts, a mounting hole is provided on the top surface of the middle longitudinal beam 2, and a threaded hole is provided on the top surface of each of the front frame beam 4, the middle cross beam 6 and the rear frame beam 5. The bolts pass through the mounting holes and are threadedly matched with the threaded holes to facilitate the connection between the middle longitudinal beam 2 and each of the front frame beam 4, the middle cross beam 6 and the rear frame beam 5.

[0050] That is, after the middle longitudinal beam 2 is erected on each of the front frame beam 4, the middle cross beam 6 and the rear frame beam 5, the bolts are passed through the mounting holes from top to bottom and threadedly engaged with the corresponding threaded holes, so that the middle longitudinal beam 2 can be connected to each of the front frame beam 4, the middle cross beam 6 and the rear frame beam 5. The installation difficulty of the middle longitudinal beam 2 is lower, and the production efficiency of the battery box frame 100 is higher.

[0051] Specifically, Fig.11 and Fig.12 As shown, a matching groove is provided on the middle bottom surface of the middle longitudinal beam 2, and notches are provided on the bottom surfaces at both ends of the middle longitudinal beam 2. The middle longitudinal beam 2 is sleeved on the middle cross beam 6 through the matching groove to achieve overlap with the middle cross beam 6, and is overlapped on the front frame beam 4 and the rear frame beam 5 respectively through the notches.

[0052] In some embodiments, Figure 2 As shown, the first end and the second end of the middle cross beam 6 are respectively provided with a first flange 61 and a second flange 62 , the first flange 61 is welded to the inner side surface of the left longitudinal beam 1 , and the second flange 62 is welded to the inner side surface of the right longitudinal beam 3 .

[0053] The design of the first flange 61 and the second flange 62 effectively increases the welding area between the middle cross beam 6 and each of the left longitudinal beam 1 and the right longitudinal beam 3 , the connection strength between the middle cross beam 6 and each of the left longitudinal beam 1 and the right longitudinal beam 3 is higher, and the structural strength of the battery box frame 100 is higher.

[0054] Specifically, the first flange 61 extends along the circumference of the center cross beam 6 and is connected end to end, and the second flange 62 extends along the circumference of the center cross beam 6 and is connected end to end. This arrangement ensures that the center cross beam 6 has a sufficiently large welding area with each of the left longitudinal beam 1 and the right longitudinal beam 3, while the cross-sectional area of ​​the main part of the center cross beam 6 does not need to be designed to be larger, thereby effectively meeting the lightweight requirements of the vehicle.

[0055] In some embodiments, Figure 5 and Figure 8 As shown, the middle cross beam 6 is integrally die-cast, and a first vehicle mounting point 63 and a positioning pin 64 for assembly guidance and positioning are integrated on the middle cross beam 6 .

[0056] The design of the positioning pin 64 effectively reduces the difficulty of connecting the first vehicle mounting point 63 on the middle cross beam 6 with the vehicle body. Moreover, the first vehicle mounting point 63 and other parts of the middle cross beam 6 are integrally die-cast, and the overall structural strength of the middle cross beam 6 is higher, which effectively improves the connection stability between the middle cross beam 6 and the vehicle body.

[0057] Specifically, Figure 1-Figure 3 As shown, there are two first vehicle mounting points 63 which are arranged at intervals along the first direction.

[0058] In some embodiments, Figure 3 and Figure 7 As shown, the front frame beam 4 is integrally die-cast and includes a front side beam 41, a front cross beam 42 and a first longitudinal beam 43. The front side beam 41 is located on the side of the front cross beam 42 away from the rear frame beam 5, and the two ends of the front side beam 41 are respectively connected to the two ends of the front cross beam 42, and a front cavity is formed between the front side beam 41 and the front cross beam 42. The first longitudinal beam 43 is located in the front cavity, and the two ends of the first longitudinal beam 43 are respectively connected to the front side beam 41 and the front cross beam 42, and at least one of the front side beam 41, the front cross beam 42 and the first longitudinal beam 43 is provided with a second vehicle mounting point 45.

[0059] The first longitudinal beam 43 effectively improves the connection strength between the front side beam 41 and the front cross beam 42, and the overall strength of the front frame beam 4 is higher. The second vehicle mounting point 45 is integrally die-cast with the front frame beam 4, which also reduces the welding process of the second vehicle mounting point 45 and further improves the production efficiency of the battery box frame 100.

[0060] Specifically, there are a plurality of first longitudinal beams 43 and they are arranged at intervals along the first direction. The plurality of first longitudinal beams 43 connect the front side beam 41 and the front cross beam 42, further improving the structural strength of the front frame beam 4. The front frame beam 4 also includes a front bottom plate, which connects each of the first longitudinal beam 43, the front side beam 41 and the front cross beam 42. The front frame beam 4 also includes two front frame frames for welding to the left longitudinal beam 1 and the right longitudinal beam 3, respectively, wherein one of the front frame frames connects the first end of the front side beam 41 and the first end of the front cross beam 42, and the other front frame frame connects the second end of the front side beam 41 and the second end of the front cross beam 42. Figure 6 As shown, the second vehicle mounting point 45 is arranged on a side of the front side beam 41 away from the front cross beam 42 .

[0061] In some embodiments, Figure 7 As shown, the front frame beam 4 also includes a first mounting bracket 44 for mounting and fixing at least one of the power control assembly, the upper cover, the bottom guard plate and the cooling assembly, and the first mounting bracket 44 is arranged on the first longitudinal beam 43. The first mounting bracket 44 does not need to be welded to the front frame beam 4 for a second time, thereby eliminating the welding process between the first mounting bracket 44 and the front frame beam 4, and effectively improving the production efficiency of the battery box frame 100.

[0062] Specifically, the electric control components include but are not limited to relays, fuses, connectors, sensors and other electrical components, as well as controllers and wiring harnesses. The cooling components include cold plates and cooling pipes.

[0063] In some embodiments, the rear frame beam 5 is integrally die-cast and includes a rear side beam 51, a rear cross beam 52, and a second longitudinal beam 53. The rear side beam 51 is located on the side of the rear cross beam 52 away from the front frame beam 4, and the two ends of the rear side beam 51 are respectively connected to the two ends of the rear cross beam 52, and a rear chamber is formed between the rear side beam 51 and the rear cross beam 52. The second longitudinal beam 53 is located in the rear chamber, and the two ends of the second longitudinal beam 53 are respectively connected to the rear side beam 51 and the rear cross beam 52, and at least one of the rear side beam 51, the rear cross beam 52, and the second longitudinal beam 53 is provided with a third vehicle mounting point 54.

[0064] The second longitudinal beam 53 effectively improves the connection strength between the rear side beam 51 and the rear cross beam 52, and the overall strength of the rear frame beam 5 is higher. The first vehicle mounting point 63, the second vehicle mounting point 45 and the third vehicle mounting point 54 are simultaneously arranged on the battery box frame 100, so that the force of the battery box frame 100 is more uniform. Moreover, the third vehicle mounting point 54 is integrally die-cast with the rear frame beam 5, which also reduces the welding process of the third vehicle mounting point 54, and further improves the production efficiency of the battery box frame 100.

[0065] Specifically, there are a plurality of second longitudinal beams 53 arranged at intervals along the first direction, and a plurality of second longitudinal beams 53 connect the rear side beams 51 and the rear cross beam 52, further improving the structural strength of the rear frame beam 5. The rear frame beam 5 also includes a rear bottom plate, which connects each of the second longitudinal beams 53, the rear side beams 51 and the rear cross beam 52. The rear frame beam 5 also includes two rear side frames for welding to the left longitudinal beam 1 and the right longitudinal beam 3, respectively, wherein one rear side frame connects the first end of the rear side beam 51 and the first end of the rear cross beam 52, and the other rear side frame connects the second end of the rear side beam 51 and the second end of the rear cross beam 52. Fig. 9 As shown, the third vehicle mounting point 54 is arranged on the second longitudinal beam 53 .

[0066] In some embodiments, Figure 4 As shown, the rear side beam 51 is provided with a connector mounting hole 511. That is, the connector mounting hole 511 is integrated on the rear side beam 51, and there is no need to weld the adapter panel on the rear frame beam 5, which saves the welding process and improves the production efficiency of the battery box frame 100.

[0067] and / or, if Fig. 9 As shown, the rear frame beam 5 also includes a second mounting bracket 55 for mounting and fixing at least one of the power control assembly, the upper cover, the bottom guard plate and the cooling assembly, and the second mounting bracket 55 is arranged on the second longitudinal beam 53. Therefore, the second mounting bracket 55 does not need to be welded to the rear frame beam 5 for a second time, further improving the production efficiency of the battery box frame 100.

[0068] In some embodiments, the left longitudinal beam 1, the middle longitudinal beam 2 and the right longitudinal beam 3 are all profile parts, the two ends of the front frame beam 4 are respectively welded to the first end of the left longitudinal beam 1 and the first end of the right longitudinal beam 3, and the two ends of the rear frame beam 5 are respectively welded to the second end of the left longitudinal beam 1 and the second end of the right longitudinal beam 3. The structures of the left longitudinal beam 1, the middle longitudinal beam 2 and the right longitudinal beam 3 are relatively simple, and through extrusion molding, their production cost is lower and the production efficiency is higher.

[0069] It should be noted that the left longitudinal beam 1, the middle longitudinal beam 2, the right longitudinal beam 3, the front frame beam 4, the middle cross beam 6 and the rear frame beam 5 are all made of aluminum alloy, which is lighter and effectively meets the lightweight requirements of the vehicle.

[0070] The battery pack according to the embodiment of the present invention includes a battery module and a battery box frame 100 as in any of the above embodiments, and the battery module is installed in the battery box frame 100 .

[0071] The technical advantages of the battery pack according to the embodiment of the utility model are the same as the technical advantages of the battery box frame 100 of the above-mentioned embodiment, which will not be repeated here.

[0072] A vehicle according to an embodiment of the present invention includes a battery pack as described in the above embodiment.

[0073] The technical advantages of the vehicle according to the embodiment of the utility model are the same as the technical advantages of the battery pack in the above-mentioned embodiment, which will not be repeated here.

[0074] 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 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.

[0075] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0076] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0078] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A battery box frame, characterized in that: It includes a left longitudinal beam, a middle longitudinal beam, a right longitudinal beam, a front frame beam and a rear frame beam, wherein the left longitudinal beam, the middle longitudinal beam and the right longitudinal beam are arranged at intervals along a first direction; two ends of the front frame beam are respectively connected to the first end of the left longitudinal beam and the first end of the right longitudinal beam, two ends of the rear frame beam are respectively connected to the second end of the left longitudinal beam and the second end of the right longitudinal beam, the first end of the middle longitudinal beam is mechanically connected and bonded to the front frame beam, and the second end of the middle longitudinal beam is mechanically connected and bonded to the rear frame beam.

2. The battery box frame according to claim 1, characterized in that: The battery box frame also includes a middle cross beam, which is located between the front frame beam and the rear frame beam. The two ends of the middle cross beam are respectively connected to the left longitudinal beam and the right longitudinal beam. The middle cross beam is mechanically connected and bonded to the middle longitudinal beam.

3. The battery box frame according to claim 1, characterized in that: The first end of the middle longitudinal beam is mechanically connected to the front frame beam through a threaded part or a rivet, and the second end of the middle longitudinal beam is mechanically connected to the rear frame beam through a threaded part or a rivet.

4. The battery box frame according to claim 2, characterized in that: The middle longitudinal beam is mechanically connected to the middle cross beam through a screw or a riveted member.

5. The battery box frame according to claim 2, characterized in that: The first end and the second end of the middle cross beam are respectively provided with a first flange and a second flange, the first flange is welded to the inner side surface of the left longitudinal beam, and the second flange is welded to the inner side surface of the right longitudinal beam.

6. The battery box frame according to claim 2, characterized in that: The middle cross beam is integrally die-cast, and is integrated with a first vehicle mounting point and a positioning pin for assembly guidance and positioning.

7. The battery box frame according to claim 1, characterized in that: The front frame beam is integrally die-cast and comprises: A front side beam and a front cross beam, wherein the front side beam is located on a side of the front cross beam away from the rear frame beam, two ends of the front side beam are respectively connected to two ends of the front cross beam, and a front chamber is formed between the front side beam and the front cross beam; and A first longitudinal beam, wherein the first longitudinal beam is located in the front cavity, two ends of the first longitudinal beam are respectively connected to the front side beam and the front cross beam, and a second vehicle mounting point is provided on at least one of the front side beam, the front cross beam and the first longitudinal beam.

8. The battery box frame according to claim 7, characterized in that: The front frame beam further comprises a first mounting bracket for mounting and fixing at least one of the power control assembly, the upper cover, the bottom guard plate and the cooling assembly, wherein the first mounting bracket is arranged on the first longitudinal beam; And / or, the second vehicle mounting point is arranged on a side of the front side beam away from the front cross beam.

9. The battery box frame according to claim 1, characterized in that: The rear frame beam is integrally die-cast and comprises: a rear side beam and a rear cross beam, wherein the rear side beam is located on a side of the rear cross beam away from the front frame beam, two ends of the rear side beam are respectively connected to two ends of the rear cross beam, and a rear chamber is formed between the rear side beam and the rear cross beam; and A second longitudinal beam, wherein the second longitudinal beam is located in the rear cavity, and both ends of the second longitudinal beam are respectively connected to the rear side beam and the rear cross beam, and a third vehicle mounting point is provided on at least one of the rear side beam, the rear cross beam and the second longitudinal beam.

10. The battery box frame according to claim 9, characterized in that: The rear side beam is provided with a connector mounting hole; And / or, the third vehicle mounting point is arranged on the second longitudinal beam; And / or, the rear frame beam further comprises a second mounting bracket for mounting and fixing at least one of the power control component, the upper cover, the bottom guard plate and the cooling component, and the second mounting bracket is arranged on the second longitudinal beam.

11. A battery pack, characterized in that: It comprises a battery module and a battery box frame as described in any one of claims 1 to 10, wherein the battery module is installed in the battery box frame.

12. A vehicle, characterized in that: Comprising the battery pack as claimed in claim 11.

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