Lifting lug, tray, battery pack and vehicle

Abstract

The lifting lug is used for the tray of the battery pack, the lifting lug comprises a connecting structure and a hanging structure, the connecting structure comprises a first end face and a bottom face, the first end face is connected with the bottom face, the first end face is suitable for being connected with a frame of the tray, the bottom face is suitable for being connected with a bottom protection plate of the tray, and the hanging structure is connected with the connecting structure. The hanging structure is suitable for being connected with a vehicle body. The lifting lug comprises the connecting structure and the hanging structure, the hanging structure is connected with the vehicle body, the first end face of the connecting structure is connected with the frame of the tray, the bottom face of the connecting structure is connected with the bottom protection plate of the tray, the lifting lug is connected with the frame and is also fixedly connected with the bottom protection plate, and the connecting stability of the tray and the vehicle body can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a lifting lug, a tray, a battery pack and a vehicle. Background Art

[0002] The battery pack tray ear is an important part of the battery pack structure. The tray is used to support the battery module, and the ear is fixed on the frame of the tray. The battery pack is connected to the vehicle through the ear.

[0003] The existing pallet lifting ears are only connected to the frame, which has the problem of insufficient connection stability. Utility Model Content

[0004] The utility model aims to provide a lifting lug, a tray, a battery pack and a vehicle, so as to solve the problem of insufficient stability in the connection between the lifting lug and the frame.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In the first aspect, the utility model provides a lifting ear, which is used for a tray of a battery pack, and the lifting ear includes a connecting structure and a hanging structure, the connecting structure includes a first end surface and a bottom surface, the first end surface is connected to the bottom surface, the first end surface is suitable for connecting to the frame of the tray, and the bottom surface is suitable for connecting to the bottom guard plate of the tray; the hanging structure is connected to the connecting structure, and the hanging structure is suitable for connecting to a vehicle body.

[0007] In one embodiment, the connecting structure includes a main body and an extension portion, the main body is connected to the extension portion, the main body includes the first end surface, the hanging structure is connected to an end of the main body facing away from the first end surface, and the surface of the extension portion away from the main body is the bottom surface.

[0008] In one embodiment, the extension portion is provided with a first mounting hole from the bottom surface, and the first mounting hole is suitable for being matched and connected with the bottom guard plate.

[0009] In one embodiment, the extension portion includes a bottom plate and a plurality of connecting plates, the bottom plate is opposite to the main body and is arranged at intervals, the plurality of connecting plates are arranged at intervals and are all connected to the main body and the bottom plate, and the surface of the bottom plate facing away from the main body is the bottom surface.

[0010] In one embodiment, the main body includes a first shell and a first reinforcement rib, and the first reinforcement rib is accommodated in the first shell; the hanging structure also includes a second shell and a second reinforcement rib, the second shell is connected to the first shell, and the second reinforcement rib is accommodated in the second shell.

[0011] In one embodiment, the first reinforcing rib and the second reinforcing rib are of an integral structure.

[0012] In one embodiment, the hanging structure further includes a second end face opposite to the first end face. One end of the first reinforcing rib away from the second reinforcing rib extends to the first end face, and one end of the second reinforcing rib away from the first reinforcing rib extends to the second end face.

[0013] In one embodiment, the cross-sectional shape of the first reinforcing rib and / or the second reinforcing rib is any one of a "rice" shape, a "cross" shape, and a "vertical" shape.

[0014] In one embodiment, the hanging structure is provided with a second mounting hole. The hanging structure further includes a sleeve, and the sleeve is inserted through the second mounting hole and is adapted to be fixedly connected to the vehicle body.

[0015] In one embodiment, the connecting structure and the hanging structure are of an integral structure.

[0016] In one embodiment, the lug has one mounting position, and the mounting position is adapted to be fixedly connected to the vehicle body.

[0017] In a second aspect, the present invention further provides a tray, including a bottom guard plate, a frame, and a lug as described in any one of the various embodiments of the first aspect. The bottom guard plate is located on one side of the frame. The bottom guard plate and the frame enclose a receiving cavity, and the bottom guard plate extends outward from the outer peripheral edge of the frame. The first end face is connected to the outer peripheral surface of the frame, and the bottom face is connected to the bottom guard plate.

[0018] In one embodiment, there are a plurality of lugs. A plurality of the lugs are respectively connected to opposite sides of the frame, and the bottom guard plate extends outward from the outer peripheral edges of the corresponding two sides of the frame.

[0019] In a third aspect, the present invention further provides a battery pack, including battery cells and a tray as described in any one of the various embodiments of the second aspect. The battery cells are received in the receiving cavity.

[0020] In a fourth aspect, the present invention further provides a vehicle, including a vehicle body and a battery pack as described in the third aspect. The battery pack is fixedly connected to the vehicle body.

[0021] By providing a connecting structure and a hanging structure, the hanging structure is connected to the vehicle body. The first end face of the connecting structure is connected to the frame of the tray, and the bottom face is connected to the bottom guard plate of the tray. The lug is not only connected to the frame but also fixedly connected to the bottom guard plate, which can improve the connection stability between the tray and the vehicle body. Description of the Drawings

[0022] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a perspective view of a tray of an embodiment;

[0024] Figure 2 is an exploded schematic diagram of a pallet according to an embodiment;

[0025] Figure 3 is a three-dimensional diagram of a frame of an embodiment;

[0026] Figure 4 is a schematic diagram of a cold plate of one embodiment;

[0027] Figure 5 is a perspective view of a lifting lug of an embodiment;

[0028] Figure 6 It is a three-dimensional diagram of a lifting ear of an embodiment.

[0029] Description of reference numerals:

[0030] 100-pallet;

[0031] 10-frame, 11-front frame, 12-rear frame, 13-side frame, 14-crossbeam, 15-mounting bracket;

[0032] 20-hanging ear, 21-connecting structure, 211-main body, 212-extension portion, 213-first end surface, 214-bottom surface, 215-first mounting hole, 216-bottom plate, 217-connecting plate, 218-first shell, 22-hanging structure, 221-second shell, 222-second reinforcing rib, 223-second end surface, 224-second mounting hole, 225-sleeve, 226-third mounting hole;

[0033] 30-cold plate, 31-flow plate, 32-temperature balancing plate. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0036] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0037] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] An embodiment of the utility model provides a vehicle, comprising a vehicle body and a battery pack according to an embodiment of the utility model, wherein the battery pack is connected and fixed to the vehicle body.

[0039] Optionally, the vehicle may be an electric vehicle or a hybrid vehicle, a sedan or an off-road vehicle, etc. The vehicle may be divided into mini vehicles, light vehicles, mid-size vehicles, and high-end vehicles, etc. according to the displacement of the engine, without any specific limitation.

[0040] Optionally, the vehicle body is made of a material with high structural strength, specifically metal materials, high-strength plastics, ceramics, carbon fiber, etc. Metal materials include aluminum, aluminum alloys, magnesium alloys, iron and iron alloys, etc. The vehicle body is a split structure, with multiple parts connected and fixed by welding, bonding, clamping, screwing, etc.

[0041] The vehicle adopts the battery pack in the embodiment of the utility model, and the connection between the battery pack and the vehicle body is stable.

[0042] The embodiment of the utility model further provides a battery pack, comprising a battery cell and the tray in the embodiment of the utility model.

[0043] Optionally, the battery pack may be a power battery pack.

[0044] Optionally, the battery cell may be a laminated battery cell, a wound battery cell, etc., without limitation.

[0045] Optionally, the battery cell includes a positive electrode sheet, a negative electrode sheet and a separator, and the positive electrode sheet, the separator and the negative electrode sheet are stacked in sequence. The tabs include a positive tab and a negative tab, and the positive tab and the negative tab can be arranged at the same end of the battery cell, or respectively at two opposite or adjacent ends of the battery cell, without specific limitation.

[0046] Optionally, the connection method between the electrode tab and the current collector can be welding, bonding, clamping, screwing, etc., without specific limitation.

[0047] Optionally, the battery cell may be a bare battery cell, or a shell is provided outside the battery cell, and the battery cell is accommodated in the shell.

[0048] Optionally, the shell is made of a material with high structural strength, specifically metal material, high-strength plastic, ceramic, etc. The metal material is, for example, aluminum, aluminum alloy, magnesium alloy, iron and iron alloy, etc.

[0049] Optionally, the shell includes an upper shell and a lower shell, and the upper shell and the lower shell are spliced ​​to form a battery cell shell. The upper shell and the lower shell can be connected and fixed by welding, bonding, clamping, screwing, etc., without specific limitation.

[0050] Optionally, the tray has a receiving cavity, and the battery cell is placed in the receiving cavity of the tray to fix the position of the battery cell.

[0051] Optionally, the number of battery cells in a single battery pack can be one or more, such as two, three, four, etc., without specific limitation.

[0052] The battery pack in the embodiment of the utility model adopts the tray in the embodiment of the utility model, so the connection between the battery pack and the vehicle body is stable.

[0053] Please refer to Figure 1 and Figure 2 The embodiment of the utility model further provides a pallet 100, including a bottom guard plate (not shown in the figure), a frame and a lifting ear 20 in the embodiment of the utility model. The bottom guard plate is located on one side of the frame 10, and the bottom guard plate and the frame 10 enclose a accommodating cavity, and the lifting ear 20 is connected to both the bottom guard plate and the frame 10.

[0054] Define the direction first. Please refer to Figure 1 , X is the first direction, Y is the second direction, and Z is the third direction.

[0055] Optionally, the frame 10 may be made of aluminum, aluminum alloy, magnesium alloy, iron, iron alloy, etc., without specific limitation.

[0056] Optionally, the shape enclosed by the frame 10 can be square, rectangular, circular, polygonal, etc., without limitation.

[0057] Optional, such as Figure 2 and Figure 3 As shown, the frame 10 includes a front frame 11, a rear frame 12 and two side frames 13, and the front frame 11 and the rear frame 12 are connected by the side frames 13. The front frame 11 and the rear frame 12 are opposite in a first direction X, and the two side frames 13 are opposite in a second direction Y.

[0058] The frame 10 can be an integrated structure, that is, the front frame 11, the rear frame 12 and the two side frames 13 are an integrated structure made by an integrated molding process, and the integrated molding process can be stamping, casting, etc., without limitation. The frame 10 can also be a split structure, and the front frame 11, the rear frame 12 and the two side frames 13 can be connected and fixed by welding, bonding, clamping, screwing, etc.

[0059] Optionally, the frame 10 further includes a plurality of beams 14 extending along the second direction Y, and two ends of the beams 14 are respectively connected to the two side frames 13 to divide the receiving space into a plurality of sub-spaces, each sub-space corresponding to receiving a battery cell.

[0060] Optionally, the cross beam 14 and the side frame 13 may be connected by welding, bonding, clamping, screwing, etc., without specific limitation.

[0061] Optionally, the frame 10 further includes a mounting bracket 15 , which is connected to the front frame 11 and a crossbeam 14 close to the front frame 11 , and the mounting bracket 15 is suitable for installing a distribution box.

[0062] Optionally, the shape of the bottom guard plate may correspond to the shape enclosed by the frame 10 without any specific limitation.

[0063] Optionally, the bottom guard plate extends outward from the outer peripheral edge of the frame 10 connected with the hanging ear 20, so as to be connected with the hanging ear 20. The outer side refers to the side of the frame 10 facing away from the accommodating cavity.

[0064] Optional, such as Figure 2 and Figure 4 As shown, the tray 100 further includes a cold plate 30 , and the cold plate 30 is received in the receiving cavity.

[0065] Optionally, the cold plate 30 includes a flow channel plate 31 and a temperature balancing plate 32, which are connected as a whole by brazing. The cold plate 30 is connected to the frame 10 by welding, bonding, clamping, screwing, etc. The welding method can be stir friction welding, etc., which is not specifically limited.

[0066] The pallet 100 in the embodiment of the utility model is provided with a bottom guard plate, a frame 10 and a lifting ear 20 in the embodiment of the utility model. The lifting ear 20 is connected to both the bottom guard plate and the frame 10, so that the connection stability of the pallet 100 can be improved.

[0067] The lifting lug 20 in the embodiment of the utility model is described in detail below.

[0068] Please refer to Figure 5 and Figure 6 The utility model provides a lifting ear 20, and the lifting ear 20 is used for a tray 100 of a battery pack. The lifting ear 20 includes a connecting structure 21 and a hanging structure 22. The connecting structure 21 includes a first end surface 213 and a bottom surface 214, the first end surface 213 is connected to the bottom surface 214, the first end surface 213 is suitable for connecting to the frame 10 of the tray 100, and the bottom surface 214 is suitable for connecting to the bottom guard plate of the tray 100.

[0069] Optionally, the shapes of the first end surface 213 and the bottom surface 214 may be square, rectangular, circular, polygonal, etc., without specific limitation.

[0070] Optionally, the first end surface 213 is connected to the outer peripheral surface of the frame 10 of the tray 100, and the connection method can be welding, bonding, clamping, screwing, etc., which is not specifically limited.

[0071] Similarly, the shape of the bottom surface 214 and the connection method between the bottom surface 214 and the bottom guard plate can refer to the aforementioned first end surface 213 and will not be repeated here.

[0072] Optionally, the hanging structure 22 is connected to the connecting structure 21 , and the hanging structure 22 is suitable for being connected to the vehicle body.

[0073] Optionally, the hanging structure 22 and the connecting structure 21 are split structures, and the hanging structure 22 and the connecting structure 21 can be connected and fixed by welding, bonding, clamping, screwing, etc.

[0074] Alternatively, the connection structure 21 and the hanging structure 22 are an integrated structure, and the hanging ear 20 is an extruded aluminum profile, which is convenient for mass production.

[0075] Optionally, a single hanging ear 20 has a mounting position, which is arranged on the hanging structure 22 and is suitable for being connected and fixed to the vehicle body.

[0076] By providing the lifting lug 20 with a mounting position suitable for connection and fixing with the vehicle body, the weight of the tray 100 can be significantly reduced, and the cost of the battery pack can be reduced. Moreover, the connection position between the lifting lug 20 and the frame 10 can be changed on the frame 10 along the first direction X, thereby reducing the overall design change of the tray caused by the change of the position of the lifting lug 20, achieving universalization within a certain range, and reducing the research and development cost of the lifting lug 20.

[0077] In the prior art, the lifting ear 20 is only connected to the frame 10 of the tray 100 , and the connection position is small, which may cause the problem of insufficient connection stability.

[0078] The lifting ear 20 in the embodiment of the utility model is connected to the vehicle body by setting a connecting structure 21 and a hanging structure 22. The first end surface 213 of the connecting structure 21 is connected to the frame 10 of the pallet 100, and the bottom surface 214 is connected to the bottom guard plate of the pallet 100. The lifting ear 20 is not only connected to the frame 10, but also fixedly connected to the bottom guard plate, which can improve the connection stability between the pallet 100 and the vehicle body.

[0079] In addition, the four edges of the bottom guard plate protrude from the outer peripheral surface of the frame 10 and are connected to the lifting ears 20, which also increases the protection area of ​​the bottom guard plate and prevents the side of the battery pack from being damaged.

[0080] Optionally, the connecting structure 21 includes a main body 211 and an extension portion 212, the main body 211 is connected to the extension portion 212, the main body 211 includes a first end surface 213, the hanging structure 22 is connected to one end of the main body 211 facing away from the first end surface 213, and the surface of the extension portion 212 away from the main body 211 is a bottom surface 214.

[0081] Optionally, the connection structure 21 may be an integrated structure or a split structure, and the main body 211 and the extension portion 212 are connected and fixed by welding, bonding, clamping, screwing, etc., without specific limitation.

[0082] Optional, such as Figure 5 As shown, the main body 211 is connected to the extension portion 212 in the third direction Z, the first end surface 213 is an end surface of the main body 211 along the second direction Y, and the hanging structure 22 is connected to one end of the main body 211 in the second direction Y facing away from the first end surface 213 .

[0083] By setting up a connecting structure 21 including a main body 211 and an extension portion 212, the hanging structure 22 is connected to one end of the main body 211 facing away from the first end surface 213, the surface of the extension portion 212 away from the main body 211 is the bottom surface 214, the various parts of the ear 20 are connected as a whole, and the first end surface 213 of the connecting structure 21 is connected to the frame 10, and the bottom surface 214 is connected to the bottom guard plate, so that the connection stability can be improved.

[0084] Optional, such as Figure 6 As shown, the extension portion 212 is provided with a first mounting hole 215 from the bottom surface 214 , and the first mounting hole 215 is suitable for being matched and connected with the bottom guard plate.

[0085] Optionally, the shape of the first mounting hole 215 can be square, circular, polygonal, etc., without specific limitation.

[0086] Optionally, the tray 100 further includes a first fixing member, and the bottom guard plate is correspondingly provided with a first fixing hole, and the first fixing member is passed through the first mounting hole 215 and the first fixing hole to connect the extension portion 212 and the bottom guard plate.

[0087] By setting the extension part 212, a first mounting hole 215 is opened from the bottom surface 214. The first mounting hole 215 is suitable for connecting with the bottom guard plate. The ear 20 is not only connected to the frame 10, but also fixedly connected to the bottom guard plate, which can improve the connection stability between the pallet 100 and the vehicle body.

[0088] Optionally, the extension portion 212 includes a bottom plate 216, and the surface of the bottom plate 216 facing away from the main body 211 is the bottom surface 214. The extension portion 212 can also be connected to the hanging structure 22, in which case the extension portion 212 is the bottom plate 216.

[0089] Optional, such as Figure 6 As shown, the extension portion 212 includes a bottom plate 216 and a plurality of connecting plates 217 . The bottom plate 216 is opposite to the main body 211 and is arranged at intervals. The plurality of connecting plates 217 are arranged at intervals and are all connected to the main body 211 and the bottom plate 216 . The surface of the bottom plate 216 facing away from the main body 211 is the bottom surface 214 .

[0090] Optionally, the bottom plate 216 and the main body 211 are arranged opposite to each other in the third direction Z, and a surface of the bottom plate 216 facing away from the main body 211 in the third direction Z is a bottom surface 214 .

[0091] Optionally, there are multiple connecting plates 217, one end of the connecting plate 217 in the third direction Z is connected to the bottom plate 216, and the other end is connected to the main body 211. In addition to connecting the bottom plate 216 and the main body 211, the connecting plate 217 also serves to strengthen the structural strength of the extension part 212, thereby increasing the rigidity of the extension part 212.

[0092] Optionally, the base plate 216 and the plurality of connecting plates 217 may be an integral structure or a split structure, and the base plate 216 and the connecting plates 217 may be connected and fixed by welding, bonding, clamping, screwing, etc., without specific limitation.

[0093] By setting the extension part 212 to include a bottom plate 216 and multiple connecting plates 217, the bottom plate 216 is opposite to the main body 211 and is arranged at intervals, and the multiple connecting plates 217 are arranged at intervals and are all connected to the main body 211 and the bottom plate 216, the rigidity of the extension part 212 can be increased, thereby improving the fatigue durability performance of the battery pack.

[0094] Optional, such as Figure 6 As shown, the main body 211 includes a first shell 218 and a first reinforcement rib (not shown in the figure), and the first reinforcement rib is accommodated in the first shell 218; the hanging structure 22 also includes a second shell 221 and a second reinforcement rib 222, the second shell 221 is connected to the first shell 218, and the second reinforcement rib 222 is accommodated in the second shell 221.

[0095] Optionally, the first reinforcing rib and the first housing 218 can be made by an integral molding process, or the first reinforcing rib and the first housing 218 can be a split structure, and the first reinforcing rib and the first housing 218 are connected by welding, bonding, snap connection or the like, and no specific limitation is made.

[0096] Optionally, the first housing 218 and the second housing 221 can be an integral structure or a split structure, and the first housing 218 and the second housing 221 are fixedly connected by welding, bonding, snap connection, screwing or the like, and no specific limitation is made.

[0097] Optionally, the connection manner of the second reinforcing rib 222 and the second housing 221 is similar to that of the first reinforcing rib and the first housing 218 described above, and reference can be made thereto without further elaboration.

[0098] By providing that the main body portion 211 includes the first housing 218 and the first reinforcing rib, the hanging structure 22 further includes the second housing 221 and the second reinforcing rib 222, the second housing 221 is connected to the first housing 218, the second reinforcing rib 222 is received in the second housing 221, the first reinforcing rib can strengthen the structural strength of the main body portion 211, and the second reinforcing rib 222 can strengthen the structural strength of the hanging structure 22, the stiffness of the lug 20 can be improved, the overall mode of the battery pack can be enhanced, and the fatigue durability performance of the battery pack can be improved.

[0099] Optionally, the first reinforcing rib and the second reinforcing rib 222 are an integral structure, which is convenient for processing and has stable connection.

[0100] Optionally, the first reinforcing rib and the second reinforcing rib 222 extend along the same straight line, and the extending direction is parallel to the second direction Y.

[0101] Optionally, as Figure 6 shown, the hanging structure 22 further includes a second end face 223 opposite to the first end face 213. One end of the first reinforcing rib away from the second reinforcing rib 222 extends to the first end face 213, and one end of the second reinforcing rib 222 away from the first reinforcing rib extends to the second end face 223, so that the overall structural strength of the lug 20 is uniform and the anti-fatigue performance is improved.

[0102] Optionally, the cross-sectional shape of the first reinforcing rib and / or the second reinforcing rib 222 is any one of a "rice" shape, a "cross" shape, and a "vertical" shape.

[0103] Optionally, when the second reinforcing rib 222 and the first reinforcing rib are an integral structure, the cross-sectional shape of the second reinforcing rib 222 corresponds to the cross-sectional shape of the first reinforcing rib, and reference can be made thereto without further elaboration.

[0104] By setting the cross-sectional shape of the first reinforcing rib to any one of "rice" shape, "plus" shape, and "vertical" shape, the first reinforcing rib can enhance the structural strength of the hanging structure 22, improve the overall mode of the battery pack, and enhance the fatigue durability performance of the battery pack.

[0105] Optionally, as Figure 5 and Figure 6 shown, the hanging structure 22 is provided with a second mounting hole 224. The hanging structure 22 further includes a sleeve 225 which is inserted through the second mounting hole 224 and fixedly connected to the vehicle body.

[0106] Optionally, the shape of the second mounting hole 224 can be square, circular, polygonal, etc. The shape of the sleeve 225 can be cylindrical, prismatic, etc., as long as it corresponds to the second mounting hole 224, and there is no specific limitation.

[0107] Optionally, the sleeve 225 is fixedly connected to the second outer shell 221.

[0108] Optionally, the installation position of the sleeve 225 is the installation position of the lug 20. The connection method between the sleeve 225 and the second outer shell 221 can be welding, bonding, clamping, screwing, etc., and there is no specific limitation.

[0109] Optionally, the sleeve 225 is connected to the second outer shell 221 by arc welding.

[0110] Optionally, the sleeve 225 can also be fixedly connected to the second reinforcing rib 222, and the connection method is not limited.

[0111] Optionally, as Figure 5 shown, the sleeve 225 is provided with a third mounting hole 226 which penetrates through the sleeve 225 along the third direction Z. The shape of the third mounting hole 226 can be square, circular, polygonal, etc., and there is no specific limitation.

[0112] Optionally, the tray 100 further includes a second connecting member which is inserted through the third mounting hole 226 to fixedly connect the hanging structure 22 to the vehicle body, thereby fixing the positions of the lug 20 and the tray 100.

[0113] By setting the hanging structure 22 to be provided with a mounting hole, and the sleeve 225 of the hanging structure 22 is inserted through the mounting hole and fixedly connected to the second outer shell 221, the position of the lug 20 and the vehicle body can be fixed, and the connection stability can be improved.

[0114] Optionally, there are multiple lugs 20, and multiple lugs 20 are respectively connected to the opposite sides of the frame 10. The bottom guard plate extends outward from the outer peripheral edges of the corresponding two sides of the frame 10.

[0115] Optionally, both side frames 13 are connected to a plurality of ears 20, and two connected ears 20 can be connected to each other; or, a plurality of ears 20 located on the same side frame 13 are arranged at intervals. All of the above methods are possible and are not specifically limited.

[0116] For example, Figure 2 As shown, the two side frames 13 of the frame 10 are suitable for connecting the lugs 20. Each side frame 13 is connected with four lugs 20 distributed at intervals, and the positions of the lugs 20 can be changed in the first direction X of the side frame 13 according to actual needs.

[0117] Optionally, the front frame 11 and the rear frame 12 may also be connected with hanging ears 20, which is not specifically limited.

[0118] By providing a plurality of lifting ears 20, the plurality of lifting ears 20 are respectively located on two opposite sides of the frame 10, and the plurality of lifting ears 20 located on the same side of the frame 10 are spaced apart, thereby reducing the overall design changes of the pallet caused by the change of the position of the lifting ears 20, achieving standardization within a certain range, and reducing the research and development cost of the lifting ears 20.

[0119] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described 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 cannot be understood as a limitation on the present invention.

[0120] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A lifting lug, characterized in that: The lug is used for the tray of the battery pack, and the lug includes: A connecting structure, including a first end face and a bottom face, the first end face is connected to the bottom face, the first end face is adapted to be connected to the frame of the tray, and the bottom face is adapted to be connected to the bottom guard plate of the tray; A hanging structure, connected to the connecting structure, and the hanging structure is adapted to be connected to the vehicle body.

2. The lifting lug according to claim 1, characterized in that: The connecting structure includes a main body part and an extending part, the main body part is connected to the extending part, the main body part includes the first end face, the hanging structure is connected to one end of the main body part facing away from the first end face, and the surface of the extending part away from the main body part is the bottom face.

3. The lifting lug according to claim 2, characterized in that: The extending part is provided with a first mounting hole from the bottom face, and the first mounting hole is adapted to be connected with the bottom guard plate in a matching manner.

4. The lifting lug according to claim 2, characterized in that: The extending part includes a bottom plate and a plurality of connecting plates, the bottom plate is arranged opposite to and spaced from the main body part, the plurality of connecting plates are arranged at intervals and are all connected to the main body part and the bottom plate, and the surface of the bottom plate facing away from the main body part is the bottom face.

5. The lifting lug according to claim 2, characterized in that: The main body part includes a first outer shell and a first reinforcing rib, and the first reinforcing rib is received in the first outer shell; the hanging structure further includes a second outer shell and a second reinforcing rib, the second outer shell is connected to the first outer shell, and the second reinforcing rib is received in the second outer shell.

6. The lifting lug according to claim 5, characterized in that: The first reinforcing rib and the second reinforcing rib are of an integral structure.

7. The lifting lug according to claim 6, characterized in that: The hanging structure further includes a second end face opposite to the first end face, one end of the first reinforcing rib away from the second reinforcing rib extends to the first end face, and one end of the second reinforcing rib away from the first reinforcing rib extends to the second end face.

8. The lifting lug according to claim 6, characterized in that: The cross-sectional shape of the first reinforcing rib and / or the second reinforcing rib is any one of a "rice" shape, a "cross" shape, and a "vertical" shape.

9. The lifting lug according to claim 1, characterized in that: The hanging structure is provided with a second mounting hole, and the hanging structure further includes a sleeve, and the sleeve is inserted through the second mounting hole and is adapted to be fixedly connected to the vehicle body.

10. The lifting lug according to claim 1, characterized in that: The connecting structure and the hanging structure are of an integral structure.

11. The lifting lug according to any one of claims 1 to 10, characterized in that: The lug has one mounting position, and the mounting position is adapted to be fixedly connected to the vehicle body.

12. A pallet, characterized in that: Including a bottom guard plate, a frame, and the lug according to any one of claims 1 to 11, the bottom guard plate is located on one side of the frame, the bottom guard plate and the frame enclose a receiving cavity, and the bottom guard plate extends outward from the outer peripheral edge of the frame, the first end face is connected to the outer peripheral surface of the frame, and the bottom face is connected to the bottom guard plate.

13. The pallet according to claim 12, characterized in that There are a plurality of the lugs, and a plurality of the lugs are respectively connected to two opposite sides of the frame, and the bottom guard plate extends outward from the outer peripheral edges of the corresponding two sides of the frame.

14. A battery pack, characterized in that: Including an electric core and the tray according to claim 12 or 13, and the electric core is received in the receiving cavity.

15. A vehicle, characterized in that: Including a vehicle body and the battery pack according to claim 14, and the battery pack is fixedly connected to the vehicle body.

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