All-aluminum tray for new energy automobile battery pack

Abstract

The invention discloses an all-aluminum tray for a new energy automobile battery pack, relates to the technical field of new energy automobiles, and solves the technical problem that all-aluminum trays of the same size cannot adapt to battery packs of different specifications in the prior art. Comprising a tray body, the tray body comprises a bottom plate and a frame, a bearing area for mounting a battery pack is formed between the bottom plate and the frame, end clamping plates and symmetrically arranged side clamping plates are arranged in the bearing area, and a clamping mechanism for limiting the position of the battery pack is mounted on the tray body; the clamping mechanisms comprise U-shaped plates, hinge assemblies, telescopic pieces, rotating cylinders, locking mechanisms and combination mechanisms, the two U-shaped plates are slidably installed on the outer side of the tray body and connected with the side clamping plates through the hinge assemblies, and the rotating cylinders penetrate through the bottom plate and are rotationally connected with the bottom plate. According to the battery pack tray, stable limiting installation can be conveniently conducted on battery packs with different sizes and models through the tray, and the applicability of the battery pack tray can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to an all-aluminum tray for a new energy vehicle battery pack. Background Art

[0002] Battery trays for new energy vehicles, often also called battery module frames or battery boxes, are key components used to load and protect battery modules in electric vehicles, plug-in hybrid vehicles, and other new energy vehicles. They not only support and secure the batteries but also significantly impact thermal management, safety, and energy density.

[0003] The structural design of new energy vehicle battery packs is becoming increasingly diverse, and different battery pack models often have different sizes and specifications. To meet the installation requirements of different battery packs, existing technologies generally use dedicated all-aluminum pallets. That is, each size and specification of battery pack requires a specially designed all-aluminum pallet of the corresponding size to match. This design model has certain limitations. First, the cost of spare parts is high. Since multiple battery packs of different sizes require corresponding all-aluminum pallets of different sizes, this will lead to a wide variety of spare parts and increased storage and management costs. In addition, when vehicle manufacturers adjust the size of battery packs, they need to redesign and manufacture the matching all-aluminum pallets, which increases R&D costs and production cycles, affecting the flexibility of electric vehicle development. Summary of the Invention

[0004] The purpose of the present invention is to provide an all-aluminum tray for new energy vehicle battery packs, which solves the problem in the prior art that all-aluminum trays of the same size cannot adapt to battery packs of different specifications.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An all-aluminum tray for new energy vehicle battery packs, comprising a tray body comprising a bottom plate and a frame. A loading area for mounting the battery pack is formed between the bottom plate and the frame. The loading area is provided with end clamping plates and symmetrically arranged side clamping plates. A clamping mechanism for defining the position of the battery pack is mounted on the tray body.

[0007] The clamping mechanism includes a U-shaped plate, a hinge assembly, a telescopic member, a rotating drum, a locking mechanism and a combined mechanism. The two U-shaped plates are slidably installed on the outside of the pallet body, and the U-shaped plates are connected to the side clamping plates through a hinge assembly. The rotating drum passes through the bottom plate and is rotatably connected thereto. The telescopic member is arranged in the load-bearing area, and the telescopic member is connected to the rotating drum through a locking mechanism. The combined mechanism is installed under the bottom plate, and the combined mechanism is used to drive the rotating drum to rotate and the two U-shaped plates to slide.

[0008] As a further solution of the present invention: a U-shaped opening is commonly provided on the frame and the bottom plate, the two U-shaped plates are slidably installed in the U-shaped opening, a protective plate is connected to the bottom of the bottom plate through a number of protruding pins, and circumferentially distributed hanging ears are installed on the side walls of the frame.

[0009] As a further solution of the present invention: the hinge assembly includes a first through slot, a first connecting rod and a movable part, the first through slot is opened at the center of the side of the U-shaped mouth, the movable part covers the first through slot, the two first connecting rods are respectively hingedly installed on the opposite sides of the two U-shaped plates, and the other end of the first connecting rod passes through the first through slot and is hinged to the corresponding side clamping plate, the movable part includes an inner shell cover and an outer shell cover, the inner shell cover and the outer shell cover are respectively connected to the opposite sides of the two U-shaped plates, and the inner shell cover and the outer shell cover are slidably plugged in.

[0010] As a further solution of the present invention: the combined mechanism includes a driving mechanism and a linkage mechanism, the driving mechanism is installed in the U-shaped opening, and the driving mechanism is used to drive the two U-shaped plates to slide synchronously, and the linkage mechanism is used to drive the rotating drum to rotate when one of the U-shaped plates slides.

[0011] As a further solution of the present invention: the driving mechanism includes a main gear, a sub-gear, a transverse rack, an L-shaped rack and an electric push rod, the main gear is rotatably installed at the center of the bottom of the base plate, the sub-gear is coaxially connected to the side of the main gear away from the base plate, the two transverse racks are staggered and connected to the opposite sides of the two U-shaped plates and mesh with the main gear, the electric push rod is installed at the bottom of the base plate, the output end of the electric push rod is connected to the moving block, the L-shaped rack is connected to the side of the moving block away from the base plate, and the L-shaped rack is meshed with the sub-gear.

[0012] As a further solution of the present invention: the linkage mechanism includes an L-shaped plate, an L-shaped column, a second connecting rod and a swing rod, the L-shaped plate is fixedly installed on the bottom of the base plate, one end of the L-shaped column is connected to the U-shaped plate close to the L-shaped plate, the other end of the L-shaped column slides through the L-shaped plate and is hinged to the second connecting rod, the other end of the second connecting rod is hinged to the swing rod, and the other end of the swing rod is connected to the outer cylinder wall of the rotating cylinder near the bottom end.

[0013] As a further solution of the present invention: an L-shaped notch is provided at one end of the side splint close to the end splint, the end splint is slidably connected to the L-shaped notch, a guide rod is installed in the L-shaped notch, and a second through groove is symmetrically provided on the end splint along its length direction, the guide rod passes through the second through groove, and the guide rod is slidably connected to the second through groove.

[0014] As a further solution of the present invention: the telescopic part includes a square tube, a sliding column, a first spring and a guide wheel. The sliding column is slidably connected to the square tube, the first spring is installed in the square tube, and one end of the first spring is connected to the sliding column. The guide wheel is installed at the end of the sliding column away from the first spring.

[0015] As a further solution of the present invention: the locking mechanism includes a pressure rod, an annular plate, a second spring, a limiting gear and an inner ring gear. The annular plate is slidably arranged in the rotating cylinder, and the annular plate is connected to the lower surface of the inner part of the rotating cylinder through the second spring. The pressure rod is rotatably connected to the top of the annular plate, and the top end of the pressure rod passes through the rotating cylinder and is connected to the lower surface of the square tube end. The inner ring gear is installed on the inner cylinder wall of the rotating cylinder, and the limiting gear is mounted on the pressure rod and meshes with the inner ring gear.

[0016] As a further solution of the present invention: a third through slot is opened on the top of the square tube and distributed along its length direction; a threaded protrusion passing through the third through slot is installed on the sliding column, and a locking knob is installed on the threaded protrusion.

[0017] Beneficial effects of the present invention:

[0018] In the present invention, the locking mechanism facilitates the release of the rotational freedom of the telescopic part after being pressed down, so that after the two ends of the battery pack are respectively fitted with one end of the frame and the end clamp, the telescopic part is deflected to make its end fit with the end clamp. Then, the combined mechanism is used to not only facilitate driving the two U-shaped plates to slide toward each other along the tray body, but also to drive the rotating drum to rotate when one of the U-shaped plates slides, thereby canceling the downward pressure on the telescopic part. The locking mechanism facilitates the rotating drum to drive the telescopic part to deflect, so that the telescopic part can contact the end clamp and adaptively shrink, thereby limiting the position of the end clamp. At the same time, when the two U-shaped plates slide toward each other, the hinge assembly can push the two side clamps to slide toward each other, thereby clamping and limiting the two sides of the battery pack. With the end clamp with limited position, it is convenient to adapt to the installation of battery packs of different sizes, which is beneficial to improving the applicability of the tray. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional diagram of an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0021] Figure 2 This is a three-dimensional diagram of an all-aluminum tray for a new energy vehicle battery pack in use according to the present invention;

[0022] Figure 3 This is a three-dimensional diagram of an all-aluminum tray for a new energy vehicle battery pack after removing the protective plate of the tray;

[0023] Figure 4 This is a three-dimensional diagram of an all-aluminum tray for a new energy vehicle battery pack after removing the movable parts of the tray;

[0024] Figure 5 This is a partial perspective view of the clamping mechanism in an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0025] Figure 6 This is a three-dimensional diagram of the driving mechanism in an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0026] Figure 7 This is a three-dimensional diagram of the connection between the U-shaped plate and the linkage mechanism in an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0027] Figure 8 This is a three-dimensional diagram of the connection between the telescopic member and the rotating drum in an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0028] Figure 9 This is a cross-sectional view of the connection between the telescopic member and the rotating drum in an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0029] Figure 10 This is a three-dimensional diagram of the connection between the side clamping plates and the end clamping plates in an all-aluminum tray for a new energy vehicle battery pack according to the present invention;

[0030] Figure 11 It is a three-dimensional diagram of the connection part between the U-shaped plate and the movable part in an all-aluminum tray for a new energy vehicle battery pack of the present invention.

[0031] In the figure: 1, bottom plate; 2, frame; 3, battery pack; 4, carrying area; 5, end clamp; 51, second through slot; 6, side clamp; 61, L-shaped notch; 62, guide rod; 7, clamping mechanism; 71, U-shaped plate; 72, hinge assembly; 721, first through slot; 722, first connecting rod; 723, movable part; 7231, inner shell; 7232, outer shell; 73, telescopic part; 731, square tube; 7311, third through slot; 732, sliding column; 7321, locking knob; 733, first Spring; 734, guide wheel; 74, rotating drum; 75, locking mechanism; 751, pressure rod; 752, annular plate; 753, second spring; 754, limit gear; 755, inner ring gear; 756, limit block; 76, combined mechanism; 761, main gear; 762, secondary gear; 763, transverse rack; 764, L-shaped rack; 765, electric push rod; 766, L-shaped plate; 767, L-shaped column; 768, second connecting rod; 769, swing rod; 8, U-shaped mouth; 9, protective plate; 10, hanging ear. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] like Figure 1-11 As shown, the present invention is an all-aluminum pallet for new energy vehicle battery packs, including a pallet body, the pallet body including a bottom plate 1 and a frame 2, a bearing area 4 for mounting a battery pack 3 is formed between the bottom plate 1 and the frame 2, and an end clamping plate 5 and a symmetrically arranged side clamping plate 6 are provided in the bearing area 4, and a clamping mechanism 7 for limiting the position of the battery pack 3 is installed on the pallet body; the clamping mechanism 7 includes a U-shaped plate 71, a hinge assembly 72, a telescopic member 73, a rotating drum 74, a locking mechanism 75 and a joint mechanism 76, two U-shaped plates 71 are slidably installed on the outside of the pallet body, and the U-shaped plates 71 are connected to the side clamping plates 6 through the hinge assembly 72, the rotating drum 74 passes through the bottom plate 1 and is rotatably connected thereto, a sealed bearing is provided between the rotating drum 74 and the bottom plate 1, the telescopic member 73 is provided in the bearing area 4, and the telescopic member 73 is connected to the rotating drum 74 through the locking mechanism 75, the joint mechanism 76 is installed below the bottom plate 1, and the joint mechanism 76 is used to drive the rotating drum 74 to rotate and the two U-shaped plates 71 to slide.

[0034] It should be noted that when in use, the battery pack 3 is first placed on the carrying area 4 so that one end is in contact with the end of the frame 2, and then the end clamping plate 5 is pushed to make it in contact with the other end of the battery pack 3. Subsequently, the telescopic member 73 is pressed down to release the restriction on its rotational freedom by the locking mechanism 75, and the telescopic member 73 can be deflected so that its end is in contact with the side of the end clamping plate 5. Starting the joint mechanism 76 can not only drive the two U-shaped plates 71 to slide toward each other, but also drive the rotating drum 74 to rotate when one of the U-shaped plates 71 slides. When the telescopic member 73 is not pressed down, the locking mechanism 75 locks its rotational freedom, so that the rotating drum 74 drives the telescopic member 73 to deflect synchronously when it rotates.

[0035] Since the end of the telescopic member 73 is in contact with the end clamp 5, and the end clamp 5 cannot move further after being in contact with the battery pack 3, the rotation of the rotating drum 74 will drive the telescopic member 73 to adaptively contract. At the same time, when the two U-shaped plates 71 slide toward each other, the hinge assembly 72 will push the two side clamps 6 close to the battery pack 3, so that the two sides of the battery pack 3 can be clamped and limited, completing the limited installation of the battery pack 3.

[0036] like Figure 1 and Figure 3As shown, a U-shaped opening 8 is provided on the frame 2 and the bottom plate 1, and two U-shaped plates 71 are slidably installed in the U-shaped opening 8. A protective plate 9 is connected to the bottom of the bottom plate 1 through several protruding pins, and circumferentially distributed hanging ears 10 are installed on the side wall of the frame 2.

[0037] It should be noted that the side of the U-shaped plate 71 is flush with the side of the frame 2, and the bottom of the U-shaped plate 71 is flush with the bottom of the base plate 1. The protective plate 9 is used to conveniently protect the tray body, and several mounting holes are provided on the hanging ear 10 to facilitate the installation of the tray body on the new energy vehicle.

[0038] like Figure 2 and Figure 10 As shown, an L-shaped notch 61 is provided at one end of the side splint 6 close to the end splint 5, the end splint 5 is slidably connected to the L-shaped notch 61, a guide rod 62 is installed in the L-shaped notch 61, and the end splint 5 is symmetrically provided with a second through groove 51 distributed along its length direction, the guide rod 62 passes through the second through groove 51, and the guide rod 62 is slidably connected to the second through groove 51.

[0039] It should be noted that the L-shaped notch 61 facilitates the sliding of the end splint 5 along the length direction of the side splint 6. The guide rod 62 and the second through groove 51 are used to facilitate not only the guiding and limiting of the sliding of the end splint 5, but also the guiding and limiting of the sliding of the side splint 6, which is beneficial to improving the stability of the movement of the end splint 5 and the side splint 6.

[0040] like Figure 2 and Figure 8-9 As shown, the telescopic member 73 includes a square tube 731, a sliding column 732, a first spring 733 and a guide wheel 734. The sliding column 732 is slidably plugged into the square tube 731, the first spring 733 is installed in the square tube 731, and one end of the first spring 733 is connected to the sliding column 732. The guide wheel 734 is installed at one end of the sliding column 732 away from the first spring 733.

[0041] It should be noted that the cross-section of the sliding column 732 is equal to the inner cross-section of the square tube 731. After the end of the sliding column 732 is compressed, it can adaptively slide along the square tube 731 and compress the first spring 733. The guide wheel 734 is used to contact the side of the end splint 5 after the telescopic member 73 is deflected, so that when the telescopic member 73 deflects in the direction close to the end splint 5, the guide wheel 734 can roll along the side of the end splint 5, which not only reduces the resistance encountered by the telescopic member 73 during deflection, but also avoids scratches on the end splint 5.

[0042] like Figure 2 and 9As shown, the locking mechanism 75 includes a pressure rod 751, an annular plate 752, a second spring 753, a limiting gear 754 and an inner ring gear 755. The annular plate 752 is slidably arranged in the rotating cylinder 74, and the annular plate 752 is connected to the lower surface of the inside of the rotating cylinder 74 through the second spring 753. The pressure rod 751 is rotatably connected to the top of the annular plate 752, and the top of the pressure rod 751 passes through the rotating cylinder 74 and is connected to the lower surface of the end of the square tube 731. The inner ring gear 755 is installed on the inner cylinder wall of the rotating cylinder 74, and the limiting gear 754 is mounted on the pressure rod 751 and meshes with the inner ring gear 755.

[0043] It should be noted that, since the battery pack 3 needs to push the end clamping plate 5 to fit with its end portion first when installing, and then use the telescopic member 73 to limit the position of the end clamping plate 5, the telescopic member 73 needs to be deflected. After deflection is in place, the rotational freedom is limited. Pressing down the telescopic member 73 can make the pressure rod 751 drive the annular plate 752 to slide down along the rotating cylinder 74 and compress the second spring 753, so that the limiting gear 754 is separated from the inner ring gear 755, and the telescopic member 73 is deflected to drive the pressure rod 751 to rotate. After loosening the telescopic member 73, the second spring 753 drives the annular plate 752 and the pressure rod 751 to rise and reset, so that the limiting gear 754 is re-engaged with the inner ring gear 755, and the rotation of the telescopic member 73 is locked, so that the deflection of the telescopic member 73 is controlled by the rotation of the rotating cylinder 74.

[0044] In this embodiment, a plurality of limit blocks 756 are circumferentially installed on the top of the inner gear ring 755. The limit blocks 756 facilitate the rising and resetting of the limit gear 754, which can achieve a positioning effect. At the same time, the limit blocks 756 can be used to keep the second spring 753 in a stored force state at all times, thereby avoiding the telescopic part 73 from shaking and improving the stability of the telescopic part 73.

[0045] like Figure 2-3 As shown, the combined mechanism 76 includes a driving mechanism and a linkage mechanism. The driving mechanism is installed in the U-shaped opening 8 and is used to drive the two U-shaped plates 71 to slide synchronously. The linkage mechanism is used to drive the rotating drum 74 to rotate when one of the U-shaped plates 71 slides.

[0046] It should be noted that the driving mechanism controls the two U-shaped plates 71 to slide toward or away from each other, and the U-shaped plates 71 connected to the linkage mechanism can synchronously drive the rotating drum 74 to rotate adaptively when sliding, and the rotating drum 74 can utilize the locking mechanism 75 (such as Figure 9 As shown in FIG, the telescopic member 73 is driven to deflect synchronously, thereby realizing the linkage between the U-shaped plate 71 and the telescopic member 73.

[0047] like Figure 3 and Figure 6As shown, the driving mechanism includes a main gear 761, a sub-gear 762, a transverse rack 763, an L-shaped rack 764 and an electric push rod 765. The main gear 761 is rotatably installed at the center of the bottom of the base plate 1. The sub-gear 762 is coaxially connected to the side of the main gear 761 away from the base plate 1. The two transverse racks 763 are staggered and connected to the opposite sides of the two U-shaped plates 71 and mesh with the main gear 761. The electric push rod 765 is installed at the bottom of the base plate 1. The output end of the electric push rod 765 is connected to the moving block. The L-shaped rack 764 is connected to the side of the moving block away from the base plate 1, and the L-shaped rack 764 meshes with the sub-gear 762.

[0048] It should be noted that, in this embodiment, the electric push rod 765 has a self-locking function. The self-locking electric push rod is a prior art and will not be elaborated here. Starting the electric push rod 765 pushes the moving block and the L-shaped rack 764 to move, thereby driving the secondary gear 762 to drive the main gear 761 to rotate synchronously. When the main gear 761 rotates, it drives the two meshing transverse racks 763 to approach each other, thereby causing the two U-shaped plates 71 to slide toward each other.

[0049] like Figure 3 、 Figure 5 and Figure 7 As shown, the linkage mechanism includes an L-shaped plate 766, an L-shaped column 767, a second connecting rod 768 and a swing rod 769. The L-shaped plate 766 is fixedly installed at the bottom of the base plate 1, one end of the L-shaped column 767 is connected to the U-shaped plate 71 close to the L-shaped plate 766, the other end of the L-shaped column 767 slides through the L-shaped plate 766 and is hinged to the second connecting rod 768, the other end of the second connecting rod 768 is hinged to the swing rod 769, and the other end of the swing rod 769 is connected to the outer cylinder wall of the rotating cylinder 74 near the bottom end.

[0050] It should be noted that there is no connection between the L-shaped plate 766 and the U-shaped plate 71. When one of the U-shaped plates 71 moves, it can slide along the L-shaped plate 766. When the two U-shaped plates 71 slide toward each other, one of the U-shaped plates 71 drives the L-shaped column 767 to slide along the L-shaped plate 766. During the sliding process, the hinged second connecting rod 768 is pulled, thereby driving the swing rod 769 to deflect, causing the rotating drum 74 to rotate.

[0051] like Figure 2 、 Figure 4 and Figure 11As shown, the hinge assembly 72 includes a first through slot 721, a first connecting rod 722 and a movable part 723. The first through slot 721 is opened at the center of the side of the U-shaped opening 8. The movable part 723 covers the first through slot 721. The two first connecting rods 722 are respectively hingedly installed on the opposite sides of the two U-shaped plates 71, and the other end of the first connecting rod 722 passes through the first through slot 721 and is hinged to the corresponding side clamping plate 6. The movable part 723 includes an inner shell cover 7231 and an outer shell cover 7232. The inner shell cover 7231 and the outer shell cover 7232 are respectively connected to the opposite sides of the two U-shaped plates 71, and the inner shell cover 7231 and the outer shell cover 7232 are slidably plugged in.

[0052] It should be noted that when the two U-shaped plates 71 slide toward each other, they drive the hinged first connecting rod 722, which can drive the two side clamps 6 to slide toward the direction close to the battery pack 3, so as to facilitate clamping and limiting it. Since the first through slot 721 is in an open state, in order to prevent external dust and water from entering the tray body and affecting the battery pack 3, the sliding and plugged inner shell cover 7231 and outer shell cover 7232 are used, which not only facilitates covering and protecting the first through slot 721, but also does not affect the sliding of the two U-shaped plates 71.

[0053] like Figure 2 and Figure 8 As shown, the top of the square tube 731 is provided with a third through slot 7311 distributed along its length direction, the sliding column 732 is provided with a threaded protrusion passing through the third through slot 7311, and a locking knob 7321 is installed on the threaded protrusion, and the locking knob 7321 is threadedly connected to the threaded protrusion.

[0054] It should be noted that when the guide wheel 734 at the end of the telescopic member 73 collides with the side of the end clamp 5, although the telescopic member 73 with its rotational freedom locked at this time can limit the position of the end clamp 5, since the telescopic member 73 can adaptively shrink when under pressure, in order to ensure the stability of the position of the end clamp 5, when the side clamp 6 completes the limiting clamping of the battery pack 3, tighten the locking knob 7321 to make it press against the top of the square tube 731, and the movement of the slide column 732 can be locked, so that the telescopic member 73 will not expand or contract, thereby utilizing the telescopic member 73 to stably limit the movement of the end clamp 5 and improve the stability of the installation of the battery pack 3.

[0055] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An all-aluminum tray for a new energy vehicle battery pack, comprising a tray body, wherein the tray body comprises a bottom plate (1) and a frame (2), wherein a bearing area (4) for mounting a battery pack (3) is formed between the bottom plate (1) and the frame (2), and wherein: The load-bearing area (4) is provided with end clamping plates (5) and symmetrically arranged side clamping plates (6), and the tray body is provided with a clamping mechanism (7) for limiting the position of the battery pack (3); The clamping mechanism (7) includes a U-shaped plate (71), a hinge assembly (72), a telescopic member (73), a rotating drum (74), a locking mechanism (75) and a joint mechanism (76). The two U-shaped plates (71) are slidably mounted on the outside of the pallet body, and the U-shaped plates (71) are connected to the side clamping plates (6) through the hinge assembly (72). The rotating drum (74) passes through the bottom plate (1) and is rotatably connected thereto. The telescopic member (73) is arranged in the bearing area (4), and the telescopic member (73) is connected to the rotating drum (74) through the locking mechanism (75). The joint mechanism (76) is mounted below the bottom plate (1), and the joint mechanism (76) is used to drive the rotating drum (74) to rotate and the two U-shaped plates (71) to slide.

2. The all-aluminum tray for new energy vehicle battery pack according to claim 1, characterized in that: The frame (2) and the bottom plate (1) are both provided with a U-shaped opening (8), the two U-shaped plates (71) are slidably mounted in the U-shaped opening (8), a protective plate (9) is connected to the bottom of the bottom plate (1) via a plurality of protruding pins, and circumferentially distributed hanging ears (10) are mounted on the side walls of the frame (2).

3. The all-aluminum tray for new energy vehicle battery pack according to claim 2, characterized in that: The hinge assembly (72) includes a first through slot (721), a first connecting rod (722) and a movable member (723), wherein the first through slot (721) is provided at the center of the side of the U-shaped opening (8), and the movable member (723) covers the first through slot (721), and the two first connecting rods (722) are respectively hingedly mounted on the opposite sides of the two U-shaped plates (71), and the other end of the first connecting rod (722) passes through the first through slot (721) and is hingedly connected to the corresponding side clamping plate (6), and the movable member (723) includes an inner shell cover (7231) and an outer shell cover (7232), wherein the inner shell cover (7231) and the outer shell cover (7232) are respectively connected to the opposite sides of the two U-shaped plates (71), and the inner shell cover (7231) and the outer shell cover (7232) are slidably plugged.

4. The all-aluminum tray for new energy vehicle battery pack according to claim 2, characterized in that: The combined mechanism (76) includes a driving mechanism and a linkage mechanism. The driving mechanism is installed in the U-shaped opening (8) and is used to drive the two U-shaped plates (71) to slide synchronously. The linkage mechanism is used to drive the rotating drum (74) to rotate when one of the U-shaped plates (71) slides.

5. The all-aluminum tray for new energy vehicle battery pack according to claim 4, characterized in that: The driving mechanism comprises a main gear (761), a sub-gear (762), a transverse rack (763), an L-shaped rack (764) and an electric push rod (765); the main gear (761) is rotatably mounted at the center of the bottom of the base plate (1); the sub-gear (762) is coaxially connected to the side of the main gear (761) away from the base plate (1); the two transverse racks (763) are staggeredly connected to the opposite sides of the two U-shaped plates (71) and mesh with the main gear (761); the electric push rod (765) is mounted at the bottom of the base plate (1); the output end of the electric push rod (765) is connected to the moving block; the L-shaped rack (764) is connected to the side of the moving block away from the base plate (1), and the L-shaped rack (764) meshes with the sub-gear (762).

6. The all-aluminum tray for new energy vehicle battery pack according to claim 4, characterized in that: The linkage mechanism comprises an L-shaped plate (766), an L-shaped column (767), a second connecting rod (768) and a swing rod (769), wherein the L-shaped plate (766) is fixedly mounted on the bottom of the base plate (1), one end of the L-shaped column (767) is connected to the U-shaped plate (71) close to the L-shaped plate (766), the other end of the L-shaped column (767) slides through the L-shaped plate (766) and is hinged to the second connecting rod (768), the other end of the second connecting rod (768) is hinged to the swing rod (769), and the other end of the swing rod (769) is connected to the outer cylinder wall of the rotating cylinder (74) close to the bottom end.

7. The all-aluminum tray for new energy vehicle battery pack according to claim 1, characterized in that: An L-shaped notch (61) is provided at one end of the side clamp (6) close to the end clamp (5), and the end clamp (5) is slidably connected to the L-shaped notch (61). A guide rod (62) is installed in the L-shaped notch (61), and the end clamp (5) is symmetrically provided with a second through groove (51) distributed along its length direction. The guide rod (62) passes through the second through groove (51), and the guide rod (62) is slidably connected to the second through groove (51).

8. The all-aluminum tray for new energy vehicle battery pack according to claim 1, characterized in that: The telescopic member (73) includes a square tube (731), a sliding column (732), a first spring (733) and a guide wheel (734). The sliding column (732) is slidably connected to the square tube (731). The first spring (733) is installed in the square tube (731), and one end of the first spring (733) is connected to the sliding column (732). The guide wheel (734) is installed on one end of the sliding column (732) away from the first spring (733).

9. The all-aluminum tray for new energy vehicle battery pack according to claim 8, characterized in that: The locking mechanism (75) includes a pressure rod (751), an annular plate (752), a second spring (753), a limiting gear (754) and an inner gear ring (755). The annular plate (752) is slidably arranged in the rotating cylinder (74), and the annular plate (752) is connected to the lower surface inside the rotating cylinder (74) through the second spring (753). The pressure rod (751) is rotatably connected to the top of the annular plate (752), and the top end of the pressure rod (751) passes through the rotating cylinder (74) and is connected to the lower surface of the end of the square tube (731). The inner gear ring (755) is installed on the inner cylinder wall of the rotating cylinder (74). The limiting gear (754) is mounted on the pressure rod (751) and meshes with the inner gear ring (755).

10. The all-aluminum tray for new energy vehicle battery pack according to claim 8, characterized in that: The top of the square tube (731) is provided with a third through slot (7311) distributed along its length direction, and the sliding column (732) is provided with a threaded protrusion passing through the third through slot (7311), and a locking knob (7321) is provided on the threaded protrusion.

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