CN220053494U - Battery mounting frame - Google Patents

Abstract

The utility model belongs to the technical field of battery packs, and discloses a battery mounting frame which comprises a main frame, wherein at least two battery layers are arranged on the main frame along the vertical direction, each battery layer consists of a plurality of cross beams which are distributed at intervals along the horizontal first direction and a plurality of longitudinal beams which are distributed at intervals along the horizontal second direction, two ends of each cross beam are respectively connected with one longitudinal beam, a plurality of vertical beams which are arranged at intervals vertically are arranged between every two adjacent battery layers, two ends of each vertical beam are respectively connected with two adjacent battery layers, a battery mounting bracket capable of supporting a battery pack is arranged on each battery layer, a plurality of laminating blocks are arranged at the top of the main frame, the bottom ends of the laminating blocks are connected with the main frame, the top ends of the laminating blocks are of a plane structure, the laminating blocks are arranged to be laminated with a frame, the whole structure has low gravity center and high stability, and is convenient to assemble.

Description

Battery mounting frame

Technical Field

The utility model relates to the technical field of battery packs, in particular to a battery mounting frame.

Background

Along with the development of new energy automobile industry, new energy electric cars are more and more common in daily life, however, the long-distance use of the car is not facilitated due to the long charging time of the battery, and especially for heavy truck types which need long-distance and efficient use, the transportation efficiency of heavy trucks can be reduced due to the long charging time, so that most of the conventional battery packs are designed into a power conversion mode, the battery packs are required to be assembled with a battery frame in advance, the battery frame is assembled with a frame, and the battery shell can be rapidly removed and replaced through a quick-change mechanism.

The existing battery mounting frame mostly adopts a multi-layer welded structure, the whole structure is high in height, the gravity center is high, the difficulty of assembly and welding is increased, meanwhile, the welding accumulated deformation is large, and the stability of the battery mounting frame is poor, so that a need exists for the battery mounting frame to solve the problems.

Disclosure of Invention

One object of the present utility model is to:

the battery mounting frame is simple in structure and convenient to assemble, and meanwhile stability of the battery mounting frame is improved by arranging the attaching blocks at the top of the main frame.

To achieve the purpose, the utility model adopts the following technical scheme:

a battery mounting frame, comprising: the battery pack comprises a main frame, the main frame is equipped with two at least battery layers along vertical direction, the battery layer is frame construction, and is adjacent through a plurality of vertical beam connections that extend along vertical direction and level interval set up between the battery layer, the battery layer can be dismantled and be connected with the battery installing support that can support battery pack, the top of main frame is equipped with a plurality of laminating pieces, the bottom of laminating piece with the main frame is connected, the top of laminating piece is equipped with the laminating face, the orientation and the height of laminating face can be adjusted, so that a plurality of the laminating face can laminate with the frame simultaneously.

Preferably, the battery layer comprises at least two cross beams which are distributed at intervals side by side along the horizontal first direction and at least two longitudinal beams which are distributed at intervals side by side along the horizontal second direction, two ends of each cross beam are respectively connected with two longitudinal beams in one-to-one correspondence, and two ends of each longitudinal beam are respectively connected with two cross beams in one-to-one correspondence.

Preferably, the auxiliary frame comprises two second auxiliary beams and a first auxiliary beam, one ends of the two second auxiliary beams are respectively connected with the main frame, the other ends of the two second auxiliary beams are respectively and correspondingly connected with two ends of the first auxiliary beam, and the auxiliary frame is configured to be capable of installing a high-low voltage integrated interface and/or a water inlet and outlet integrated interface.

Preferably, the auxiliary frame is connected with the cross beam, the auxiliary frame further comprises an interface mounting bracket, the interface mounting bracket and the first auxiliary beam are arranged at intervals along the first direction, and two ends of the interface mounting bracket are respectively connected with the two second auxiliary beams in a one-to-one correspondence manner.

Preferably, the interface mounting bracket is provided with a plurality of interface connection holes, and the high-low voltage integrated interface is connected with the interface mounting bracket through an interface mounting screw penetrating through the interface connection holes; and/or

The water inlet and outlet integrated interface is connected with the interface mounting bracket through an interface mounting screw penetrating through the interface connecting hole.

Preferably, the battery mounting bracket comprises a plurality of supporting blocks arranged at intervals along the length direction of the longitudinal beam, one end of each supporting block is connected with the longitudinal beam, the other end of each supporting block extends inwards, a battery mounting surface is arranged at the top of each supporting block, and a plurality of battery mounting surfaces are located on the same horizontal plane.

Preferably, the support block is provided with a battery connecting hole, and the battery pack is connected with the support block through a battery mounting screw penetrating through the battery connecting hole.

Preferably, the top of the main frame is further provided with a plurality of guide pins, one ends of the guide pins are connected with the main frame, the other ends of the guide pins extend vertically upwards, and the guide pins are configured to be matched with pin holes on the frame so that the main frame can be positioned.

Preferably, the direction and the height of the bonding surface are adjusted by a grinding process.

Preferably, a plurality of mounting through holes are formed in the bottom of the main frame, and the main frame can be connected with the frame through connecting bolts penetrating through the mounting through holes.

The utility model has the beneficial effects that:

the utility model provides a battery mounting frame, which comprises a main frame, wherein the main frame comprises at least two battery layers which are vertically distributed, adjacent battery layers are connected through vertical beams, and each battery layer is of a frame structure and is easy to assemble; each battery layer is provided with a detachable battery mounting bracket capable of supporting a battery pack, the battery mounting bracket of the bottommost battery layer is assembled firstly in the process of placing the battery pack, after the battery pack is placed, the battery mounting bracket and the battery pack of the upper layer are assembled again, the assembly gap between the battery packs is reduced, the structure is compact, the overall height of the battery mounting frame can be effectively reduced, the gravity center is reduced, and the stability is improved. On the other hand, set up the laminating piece in main frame top surface, laminating piece lower extreme and main frame connection, the upper end sets up the laminating face, in actual assembly process, is connected laminating piece and main frame earlier, and the height and the orientation of laminating face are adjusted to the degree of deformation according to main frame again, make a plurality of laminating faces can laminate with the frame simultaneously to the processing deformation of compensation main frame, thereby improve battery installation frame and frame connection's stability.

Drawings

The utility model is described in further detail below with reference to the drawings and examples;

FIG. 1 is an isometric view of a battery mounting frame assembly battery pack;

FIG. 2 is an isometric view of a battery mounting frame;

fig. 3 is a top view of the battery mounting frame;

fig. 4 is a front view of the battery mounting frame.

In the figure:

1. a main frame; 11. a cross beam; 12. a longitudinal beam; 13. a vertical beam; 14. mounting through holes; 2. a battery mounting bracket; 21. a support block; 22. a battery mounting surface; 23. a battery connection hole; 3. a bonding block; 4. an inlet-outlet water integration interface; 5. a high-low voltage integrated interface; 6. a subframe; 61. a first secondary beam; 62. a second secondary beam; 63. an interface mounting bracket; 64. an interface connection hole; 7. a guide pin; 8. and a battery pack.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 4, the battery mounting frame comprises a main frame 1 and an auxiliary frame 6, the main frame 1 is composed of at least two battery layers arranged at intervals along the vertical direction, each battery layer is of a frame structure, adjacent battery layers are connected through a plurality of vertical beams 13 which extend along the vertical direction and are arranged at intervals horizontally, and the vertical beams 13 can play a supporting role on the battery layers and guarantee the perpendicularity of the main frame 1.

Illustratively, the main frame 1 is provided with two battery layers, each battery layer is formed by connecting two rectangular boxes, the dimensions of the rectangular boxes are designed according to the dimensions of the battery packs 8, and each rectangular box can accommodate one battery pack 8, that is, the main frame 1 can place four battery packs 8.

In other embodiments, the main frame 1 may also be provided with three, four or more than four battery layers, each battery layer may be provided with three, four or more than four rectangular boxes, so that the main frame 1 can place more battery packs 8, and the size of the rectangular boxes may also be adjusted according to the size of the battery packs 8, so as to adapt to battery packs 8 of different models, and improve the versatility of the battery mounting frame; correspondingly, the number or the cross-sectional size of the vertical beams 13 can be appropriately increased, so that the overall structural stability of the main frame 1 is improved, and the main frame 1 is ensured to be capable of supporting a plurality of battery packs 8.

As shown in fig. 1 to 2, each battery layer is connected with a battery mounting bracket 2 capable of supporting a battery pack 8, in order to reduce the assembly gap between the battery packs 8, the battery mounting bracket 2 is detachably connected with a rectangular square frame, in the process of placing the battery packs 8, the battery mounting bracket 2 of the bottommost battery layer is assembled first, after the battery packs 8 are placed, the battery mounting bracket 2 and the battery packs 8 of the previous layer are assembled continuously, the distance between each battery layer is adjusted according to the height of the battery packs 8, specifically, the assembly gap between the battery packs 8 can be reduced to the greatest extent by adjusting the length of a vertical beam 13 in a layer-by-layer installation mode, the overall height of the battery mounting frame is effectively reduced by a compact structure, the center of gravity is lowered, and the stability is improved.

As shown in fig. 1 to 3, the rectangular boxes are composed of two cross beams 11 arranged at intervals side by side along a horizontal first direction and two longitudinal beams 12 arranged at intervals side by side along a horizontal second direction, the first direction is mutually perpendicular to the second direction, two ends of each cross beam 11 are respectively and fixedly connected with the two longitudinal beams 12 in a one-to-one correspondence manner through welding or bonding and the like, two ends of each longitudinal beam 12 are respectively and fixedly connected with the two cross beams 11 in a one-to-one correspondence manner through welding or bonding and the like, two adjacent rectangular boxes share one cross beam 11 or one longitudinal beam 12, each battery layer can be independently assembled, each battery layer is connected through a vertical beam 13, the assembly of the main frame 1 is completed, the vertical beam 13 is fixedly connected with the battery layers through welding or bonding and the like, the structure is simple, the processing and manufacturing are convenient, the assembly is easy, and the manufacturing cost can be effectively reduced.

In other embodiments, the rectangular square frame may also be integrally formed, where the cross beam 11 and the longitudinal beam 12 are integrally connected, so as to improve the connection strength of the cross beam 11 and the longitudinal beam 12, thereby improving the structural stability of the main frame 1, and simultaneously, avoiding the deformation of the main frame 1 during the welding process, and reducing the deformation amount of the main frame 1.

As shown in fig. 1 to 4, the battery mounting bracket 2 includes a plurality of supporting blocks 21 arranged at intervals along the length direction of the longitudinal beam 12, the arrangement positions of the supporting blocks 21 are in one-to-one correspondence with the mounting holes of the battery pack 8, one end of each supporting block 21 is connected with the longitudinal beam 12, the other end extends inwards, the top of each supporting block 21 is provided with a battery mounting surface 22, the plurality of battery mounting surfaces 22 are located on the same horizontal plane, the cross section of each supporting block 21 is of an inverted-L structure, the supporting blocks 21 are connected with the longitudinal beam 12 through a bolt-nut structure, the top surface of each supporting block 21 is provided with a battery connecting hole 23, the battery pack 8 is connected with the supporting blocks 21 through battery mounting screws penetrating through the battery connecting holes 23, and the inverted-L structure is convenient for the supporting blocks 21 to be connected with the longitudinal beam 12 in a mounting manner and is also convenient for the battery pack 8 to be connected with the supporting blocks 21 in a mounting manner.

Preferably, two triangular side plates are arranged on two sides of the supporting block 21, the supporting block 21 is of an integrated structure, and the two triangular side plates can improve the bearing capacity of the supporting block 21 so as to prevent the supporting block 21 from deforming and failing.

In the actual assembly process, the main frame 1 is inevitably deformed due to welding, machining errors and the like, so that the flatness of the main frame 1 and the frame mounting surface is affected. As shown in fig. 1 to 4, the top of the main frame 1 is provided with a plurality of attaching blocks 3, the bottom of each attaching block 3 is connected with the main frame 1, the top of each attaching block 3 is provided with an attaching surface, and the orientation and the height of each attaching surface can be adjusted so that the attaching surfaces can be attached to the frame simultaneously. Illustratively, the orientation and height of the abutment surface is adjusted by the grinding process. After the main frame 1 is assembled, the laminating piece 3 of corresponding thickness is selected according to the deformation condition of the main frame 1 to guarantee that the laminating piece 3 has sufficient grinding allowance, then the laminating piece 3 is welded on the top surface of the main frame 1, the laminating piece 3 is uniformly arranged in each direction of the top surface of the main frame 1, and finally the main frame 1 is placed on a plane to grind the laminating piece 3, so that all the laminating surfaces are guaranteed to be positioned on the same horizontal plane, the processing deformation of the main frame 1 is compensated through the laminating piece 3, all the laminating surfaces are guaranteed to be laminated with a frame simultaneously, and the stability of connection of a battery mounting frame and the frame is improved.

In other embodiments, the orientation and height of the bonding surface of the bonding block 3 may also be adjusted by a cutting process or the like.

The main frame 1 is internally provided with a plurality of battery packs 8, the water inlet and outlet interface and the high-low voltage interface of each battery pack 8 are communicated with the water inlet and outlet interface or the high-low voltage interface of the whole vehicle, if the water inlet and outlet interface and the high-low voltage interface of each battery pack 8 are independently communicated, the workload is various and the power conversion efficiency is seriously reduced, therefore, the water inlet and outlet integrated interface 4 and the high-low voltage integrated interface 5 are configured for the plurality of battery packs 8, and the auxiliary frame 6 can be provided with the high-low voltage integrated interface 5 and/or the water inlet and outlet integrated interface 4. One end of the water inlet and outlet integrated interface 4 can be communicated with water inlet and outlet interfaces of a plurality of battery packs 8, and the other end of the water inlet and outlet integrated interface 4 can be communicated with the water inlet and outlet integrated interface of the whole vehicle; one end of the high-low voltage integrated interface 5 can be electrically connected with the high-low voltage interfaces of the battery packs 8, and the other end of the high-low voltage integrated interface 5 can be electrically connected with the whole vehicle high-low voltage integrated interface.

As shown in fig. 1 to 4, the sub-frame 6 is composed of two second sub-beams 62 and one first sub-beam 61 and is connected to the main frame 1, and one ends of the two second sub-beams 62 are respectively connected to one cross beam 11, and the other ends of the two second sub-beams 62 are respectively connected to both ends of the first sub-beam 61, and the second sub-beams 62 and the first sub-beam 61 are fixedly connected by welding, bonding or integral connection, and the sub-frame 6 is connected to any one of the battery layers by welding or bonding, and the like. Because the water inlet and outlet interfaces and the high-low pressure interfaces of the battery pack 8 are distributed on one side of the short side, the connection of the auxiliary frame 6 and the cross beam 11 can shorten the distance between the water inlet and outlet interfaces of the battery pack 8 and the water inlet and outlet integrated interface 4 and/or shorten the distance between the high-low pressure interfaces of the battery pack 8 and the high-low pressure integrated interface 5, and the situation that the battery pack 8 cannot be connected with the water inlet and outlet integrated interface 4 and/or the high-low pressure integrated interface 5 due to too far distance is avoided.

In other embodiments, the subframe 6 may also be connected to the stringers 12.

Preferably, the auxiliary frame 6 is connected with the battery layer at the bottommost layer, the bottom surface of the auxiliary frame 6 and the bottom surface of the main frame 1 are located on the same horizontal plane, on one hand, the water inlet and outlet integrated interface 4 and/or the high-low pressure integrated interface 5 are installed at the top of the auxiliary frame 6, the auxiliary frame 6 is located at the bottommost layer and is convenient for the water inlet and outlet integrated interface 4 and/or the high-low pressure integrated interface 5 to be communicated with the water inlet and outlet interface and/or the high-low pressure interface of the battery pack 8 in each battery layer, on the other hand, the bottom surface of the auxiliary frame 6 is abutted with the frame, and the bearing pressure of the auxiliary frame 6 can be transferred to the frame, so that the bearing pressure of the auxiliary frame 6 is reduced, and deformation or separation of the auxiliary frame 6 from the main frame 1 is avoided.

As shown in fig. 2 to 3, the subframe 6 is further provided with an interface mounting bracket 63, the interface mounting bracket 63 and the first auxiliary beam 61 are arranged at intervals along the first direction, two ends of the interface mounting bracket 63 are respectively connected with the two second auxiliary beams 62 in a one-to-one correspondence manner, and the interface mounting bracket 63 can be fixedly connected with the second auxiliary beams 62 through welding, bonding or a bolt structure.

Illustratively, two interface mounting brackets 63 are provided, and two sides of the two interface mounting brackets 63, which are arranged in parallel and are away from each other, are respectively fixedly connected with the first auxiliary beam 61 and the cross beam 11 by means of welding or bonding, so as to further improve the connection strength of the interface mounting brackets 63. The top surface of interface mounting support 63 is the interface mounting face, two interface mounting faces are located same horizontal plane, the bottom of interface mounting support 63 is higher than the bottom surface of subframe 6 simultaneously, be equipped with a plurality of interface connection holes 64 on the interface mounting support 63, high low pressure integrated interface 5 is connected with interface mounting support 63 through the interface mounting screw that wears to locate interface connection hole 64, and/or business turn over water integrated interface 4 is connected with interface mounting support 63 through the interface mounting screw that wears to locate interface connection hole 64, two parallel arrangement's interface mounting support 63 can avoid business turn over water integrated interface 4 and/or high low pressure integrated interface 5 to empty, interface mounting screw protruding part and frame butt, battery mounting frame can steadily place.

In other embodiments, the interface mounting bracket 63 may also adopt a flat plate structure, where the size of the flat plate structure is consistent with that of the subframe 6, the interface mounting bracket 63 is fixedly connected with the upper end surface of the subframe 6 by welding, bonding or a bolt structure, and the water inlet and outlet integrated interface 4 and/or the high-low voltage integrated interface 5 are mounted on the top surface of the interface mounting bracket 63 and fixed by an interface mounting screw. Further, the top surface of the interface mounting bracket 63 is provided with an inlet and outlet integrated interface mounting groove and/or a high-low voltage integrated interface 5 mounting groove.

In the assembly process, each battery pack 8 is installed, the connection between the battery pack 8 and the water inlet and outlet integrated interface 4 and/or the high-low voltage integrated interface 5 is completed, when the battery is replaced, the whole vehicle water inlet and outlet integrated interface 4 is communicated with the water inlet and outlet integrated interface 4, and/or the whole vehicle high-low voltage integrated interface 5 is electrically connected with the high-low voltage integrated interface 5, so that the connection between the water inlet and outlet interfaces of each battery pack 8 and/or the high-low voltage interfaces and the whole vehicle can be completed, a large amount of wiring work is reduced, and the power conversion efficiency is greatly improved.

Illustratively, the cross beam 11, the longitudinal beam 12, the vertical beam 13, the first auxiliary beam 61 and the second auxiliary beam 62 are all made of thin-walled square beams, so that under the condition of ensuring the bearing capacity and the structural stability of the battery mounting frame, the dead weight of the battery mounting frame is reduced, and meanwhile, the manufacturing cost of the battery mounting frame is reduced, specifically, the square beams are 70mm in cross section size, 3mm in thickness, and materials are common and low in cost. In other embodiments, square beams of other dimensions may be selected as the fabrication material.

As shown in fig. 1 to 4, the top of the main frame 1 is further provided with two guide pins 7, one end of each guide pin 7 is connected with the top surface of the main frame 1 in a manner of welding, bonding or threaded connection, and the like, the other end of each guide pin extends vertically upwards, the installation positions of the guide pins 7 are in one-to-one correspondence with pin holes in the top of the frame, in the assembly process of the battery installation frame, the distance between the bottom of the frame and the bottom of the frame can be adjusted, the battery installation frame is placed at the bottom of the frame, the distance between the top of the frame and the bottom of the frame is adjusted, the top of the frame is made to be close to the battery installation frame, the guide pins 7 are inserted into the pin holes in the top of the frame in one-to-one correspondence, namely, the positioning of the battery installation frame is completed, the top of the frame is made to be close to the battery installation frame until the top of the frame is attached to the attaching surface, and the battery installation frame is convenient and quick, and the battery replacement efficiency can be effectively improved.

In other embodiments, a plurality of guide pins 7 may be provided in a one-to-one correspondence with the actual number of pin holes on the frame.

Illustratively, the bottom of the main frame 1 is provided with a plurality of mounting through holes 14, and the main frame 1 can be connected with the vehicle frame by connecting bolts penetrating the mounting through holes 14, so that the battery mounting frame can be firmly fixed on the vehicle frame. In other embodiments, the mounting through hole 14 may also be used as a mounting power exchanging device, and the bottom surface of the battery mounting frame is connected with the vehicle frame in a mounting manner, so that the battery mounting frame is switched to a power exchanging mode, and the battery mounting frame can be applied to different scenes.

Furthermore, the foregoing description of the preferred embodiments and the principles of the utility model is provided herein. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. A battery mounting frame, comprising: the battery pack comprises a main frame (1), wherein the main frame (1) is provided with at least two battery layers along the vertical direction, the battery layers are of a frame structure, the battery layers are adjacent to each other, vertical beams (13) which extend along the vertical direction and are arranged at intervals horizontally are connected with each other, the battery layers are detachably connected with a battery mounting bracket (2) capable of supporting a battery pack (8), the top of the main frame (1) is provided with a plurality of laminating blocks (3), the bottom of each laminating block (3) is connected with the main frame (1), the top of each laminating block (3) is provided with a laminating surface, and the orientation and the height of each laminating surface can be adjusted so that a plurality of laminating surfaces can be laminated with a frame simultaneously.

2. The battery mounting frame according to claim 1, wherein the battery layer comprises at least two cross beams (11) which are arranged side by side at intervals along a first horizontal direction and at least two longitudinal beams (12) which are arranged side by side at intervals along a second horizontal direction, two ends of each cross beam (11) are respectively connected with the two longitudinal beams (12) in a one-to-one correspondence manner, and two ends of each longitudinal beam (12) are respectively connected with the two cross beams (11) in a one-to-one correspondence manner.

3. The battery mounting frame according to claim 2, further comprising a sub-frame (6), the sub-frame (6) comprising two second sub-beams (62) and one first sub-beam (61), one ends of the two second sub-beams (62) being respectively connected to the main frame (1), the other ends of the two second sub-beams (62) being respectively connected to both ends of the first sub-beam (61), the sub-frame (6) being configured to be capable of mounting a high-low voltage integration interface (5) and/or a water inlet-outlet integration interface (4).

4. A battery mounting frame according to claim 3, wherein the sub-frame (6) is connected to the cross member (11), the sub-frame (6) further comprises an interface mounting bracket (63), the interface mounting bracket (63) and the first sub-beam (61) are arranged at intervals along the first direction, and two ends of the interface mounting bracket (63) are respectively connected to two second sub-beams (62) in a one-to-one correspondence.

5. The battery mounting frame according to claim 4, wherein the interface mounting bracket (63) is provided with a plurality of interface connection holes (64), and the high-low voltage integrated interface (5) is connected with the interface mounting bracket (63) by an interface mounting screw penetrating through the interface connection holes (64); and/or

The water inlet and outlet integrated interface (4) is connected with the interface mounting bracket (63) through an interface mounting screw penetrating through the interface connecting hole (64).

6. The battery mounting frame according to claim 2, wherein the battery mounting bracket (2) comprises a plurality of supporting blocks (21) which are arranged at intervals along the length direction of the longitudinal beam (12), one end of each supporting block (21) is connected with the longitudinal beam (12), the other end of each supporting block (21) extends inwards, a battery mounting surface (22) is arranged at the top of each supporting block (21), and a plurality of battery mounting surfaces (22) are located on the same horizontal plane.

7. The battery mounting frame according to claim 6, wherein the support block (21) is provided with a battery connection hole (23), and the battery pack (8) is connected to the support block (21) by a battery mounting screw penetrating the battery connection hole (23).

8. The battery mounting frame according to any one of claims 1-7, wherein the top of the main frame (1) is further provided with a plurality of guide pins (7), one end of the guide pins (7) is connected with the main frame (1), the other end extends vertically upwards, and the guide pins (7) are configured to cooperate with pin holes on the frame to enable positioning of the main frame (1).

9. The battery mounting frame of any one of claims 1-7 wherein the orientation and height of the abutment surface is adjusted by a grinding process.

10. The battery mounting frame according to any one of claims 1 to 7, wherein a plurality of mounting through holes (14) are provided at the bottom of the main frame (1), and the main frame (1) is connectable to the vehicle frame by connecting bolts penetrating the mounting through holes (14).