Battery pack tray, battery pack and electric equipment

Abstract

The invention discloses a battery pack tray, a battery pack and electric equipment, the battery pack tray comprises a tray frame and a plurality of lifting lugs, the tray frame is provided with an accommodating cavity in a surrounding manner, and in a first direction, the tray frame comprises two side frames which are oppositely arranged; the multiple lifting lugs are arranged on the two opposite sides, in the first direction, of the tray frame correspondingly, and the lifting lugs are connected to the side walls, away from the containing cavity, of the side frames. Therefore, the lifting lugs are independently formed, so that the lifting lugs can be independently designed, the design flexibility of the battery pack tray is improved, the lightweight design of the battery pack tray is favorably realized, the modality of the battery pack tray is improved, the vibration stress resistance level of the lifting lugs is conveniently improved, and the practicability is relatively high.

Description

Technical Field

[0001] The present invention relates to the field of batteries, and in particular to a battery pack tray, a battery pack and an electrical device. Background Art

[0002] In the related art, the battery pack tray is provided with a crossbeam and a tray lug, and the tray lug and the crossbeam are integrated for easy installation. The flexible design of the lug cross section is limited, and the middle crossbeam cross section needs to be considered. In order to meet the design requirements of the cross section stiffness of the lug, the crossbeam may be over-designed, and the lug design cannot be copied and applied to other trays, lacking versatility, and there is room for improvement. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a battery pack tray, the lifting ears can be designed individually, the design flexibility is high, and it is conducive to the lightweight design of the battery pack tray, thereby improving the mode of the battery pack tray, and it is easy to improve the vibration stress resistance level of the lifting ears, and it is highly practical.

[0004] A battery pack pallet according to an embodiment of the present invention includes: a pallet frame, which surrounds a accommodating cavity, and in a first direction, the pallet frame includes two side frames arranged opposite to each other; a plurality of lifting ears, which are respectively arranged on opposite sides of the pallet frame in the first direction, and the lifting ears are connected to the side walls of the side frames facing away from the accommodating cavity.

[0005] According to the battery pack tray of the embodiment of the present invention, the lifting ears are independently formed so that they can be individually designed to improve the design flexibility of the battery pack tray, facilitate the lightweight design of the battery pack tray, thereby improving the mode of the battery pack tray and facilitating the improvement of the vibration stress resistance level of the lifting ears, and having strong practicality.

[0006] According to the battery pack tray of some embodiments of the present invention, in the first direction, the ears on opposite sides of the tray frame are symmetrically arranged.

[0007] According to the battery pack tray of some embodiments of the present invention, the lifting ear and the side frame are welded and connected.

[0008] According to the battery pack tray of some embodiments of the present invention, the lifting ear includes a main body and a sleeve portion, the main body is formed with a penetrating mounting hole, at least a portion of the sleeve is inserted into the mounting hole and is fixedly connected to the main body along the circumference of the sleeve, and the main body is fixedly connected to the side frame.

[0009] According to the battery pack tray of some embodiments of the present invention, in the second direction, the lifting ears are symmetrically formed parts, and the first direction, the second direction and the axial direction of the mounting hole are arranged perpendicularly in pairs.

[0010] According to the battery pack tray of some embodiments of the present invention, a plurality of cavities are provided in the lifting ear.

[0011] According to some embodiments of the battery pack tray of the present invention, the main body includes a top plate, a middle plate and a bottom plate arranged in parallel with an axial interval of the mounting hole, the top plate is connected to the middle plate via a first connecting plate to define a first chamber, and the bottom plate is connected to the middle plate via a second connecting plate to define a second chamber.

[0012] According to the battery pack tray of some embodiments of the present invention, the size of the top plate along the second direction is smaller than the size of the middle plate along the second direction, and the size of the middle plate along the second direction is equal to the size of the bottom plate along the second direction.

[0013] According to the battery pack tray of some embodiments of the present invention, the projection of the first chamber on the plane perpendicular to the first direction is an isosceles trapezoid; and / or the projection of the second chamber on the plane perpendicular to the first direction is a rectangle.

[0014] According to the battery pack tray of some embodiments of the present invention, the main body also includes two first partitions spaced apart along the second direction, the two first partitions are symmetrically arranged about the middle of the ear in the second direction, and the first partition extends along the axial direction of the mounting hole and is used to separate the first chamber and the second chamber.

[0015] According to some embodiments of the battery pack tray of the present invention, a dimension of the main body along the second direction is L1, and a dimension of the main body along the up-down direction is H1, which satisfies: 1.5≤L1 / H1≤3.0.

[0016] According to the battery pack tray of some embodiments of the present invention, an angle α1 is formed between the first connecting plate and the middle plate, satisfying: 40°≤α1≤70°.

[0017] According to the battery pack tray of some embodiments of the present invention, the distance between the two first partitions along the second direction is L2, which satisfies: 10mm≤L2≤30mm.

[0018] According to the battery pack tray of some embodiments of the present invention, the main body also includes a second partition, which is located in the middle of the main body along the second direction, and the second partition extends along the axial direction of the mounting hole and is used to separate the first chamber and the second chamber.

[0019] According to the battery pack tray of some embodiments of the present invention, the main body also includes a third partition, and the third partition is connected between the connection between the second partition and the middle plate and the side edge of the bottom plate along the second direction; and / or the third partition is connected between the connection between the second partition and the middle plate and the side edge of the top plate along the second direction.

[0020] According to some embodiments of the battery pack tray of the present invention, a dimension of the main body along the second direction is L1, and a dimension of the main body along the axial direction of the mounting hole is H1, which satisfies: 1.5≤L1 / H1≤2.5.

[0021] According to the battery pack tray of some embodiments of the present invention, an angle α1 is formed between the first connecting plate and the middle plate, satisfying: 40°≤α1≤80°.

[0022] According to the battery pack tray of some embodiments of the present invention, the first partition is connected to the outer wall of the sleeve portion; or the second partition is connected to the outer wall of the sleeve portion.

[0023] According to the battery pack tray of some embodiments of the present invention, the main body and the sleeve are integrally formed.

[0024] The invention also provides a battery pack.

[0025] A battery pack according to an embodiment of the present invention includes a battery pack tray according to any of the above embodiments.

[0026] The present invention further provides an electrical device.

[0027] An electric device according to an embodiment of the present invention includes a battery pack according to any of the above embodiments.

[0028] The advantages of the battery pack, the electrical equipment and the battery pack tray are the same as those of the prior art and will not be elaborated here.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1 is a schematic diagram of a battery pack tray according to an embodiment of the present invention;

[0032] Figure 2 is an exploded view of a battery pack tray according to an embodiment of the present invention;

[0033] Figure 3 is an axonometric view of a lifting ear according to Embodiment 1 of the present invention;

[0034] Figure 4 is a front view of a lifting ear according to Embodiment 1 of the present invention;

[0035] Figure 5 is an axonometric view of a lifting lug according to a second embodiment of the present invention;

[0036] Figure 6 4 is a front view of a lifting ear according to the second embodiment of the present invention.

[0037] Reference numerals:

[0038] Battery pack tray 100, first direction F1, second direction F2, axial direction F3 of the mounting hole,

[0039] Tray frame 1, side frame 11, accommodating cavity 12,

[0040] Lifting ear 2, main body 21, top plate 211, middle plate 212, bottom plate 213, first connecting plate 214, second connecting plate 215, first partition plate 216, second partition plate 217, third partition plate 218, sleeve portion 22, first chamber 23, second chamber 24. DETAILED DESCRIPTION

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to 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. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Hereinafter, a battery pack tray 100 according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0045] like Figure 1-Figure 6 As shown, a battery pack pallet 100 according to an embodiment of the present invention includes: a pallet frame 1 and a plurality of lifting ears 2, wherein the pallet frame 1 is provided with a receiving cavity 12, and in a first direction F1, the pallet frame 1 includes two side frames 11 arranged opposite to each other; the plurality of lifting ears 2 are respectively arranged on opposite sides of the pallet frame 1 in the first direction F1, and the lifting ears 2 are connected to the side walls of the side frames 11 facing away from the receiving cavity 12.

[0046] This is conducive to achieving a lightweight design of the battery pack tray 100, thereby improving the mode of the battery pack tray 100 and facilitating improving the vibration stress resistance level of the lifting ear 2, and is highly practical.

[0047] First, if Figure 1-Figure 2 As shown, the battery pack tray 100 includes a tray frame 1 and a plurality of lifting ears 2. The tray frame 1 is surrounded by a receiving cavity 12, and the tray frame 1 includes two side frames 11, which are arranged opposite to each other in a first direction F1. It should be noted that the first direction F1 can be Figure 1 The left and right directions shown can also be Figure 1 Front-to-back orientation shown.

[0048] The multiple ears 2 are divided into two groups. The two groups of ears 2 are respectively arranged on opposite sides of the pallet frame 1 along the first direction F1. Each group has multiple ears 2. The multiple ears 2 in the same group are spaced apart along the length direction of the side frame 11.

[0049] The ear 2 and the side frame 11 can be provided as separate molded parts, and one side of the ear 2 along the first direction F1 is in contact with the side wall of the side frame 11 away from the accommodating cavity 12 and is connected to the side frame 11, so that the ear 2 can be used to fix the battery pack tray 100. Exemplarily, the ear 2 can be welded to the side frame 11; or, the ear 2 can be fixed to the side frame 11 by a fixing member, and the present invention does not limit this.

[0050] Through the above arrangement, the lifting lug 2 can be designed separately to improve the design flexibility of the battery pack tray 100, and avoid the battery pack tray 100 from being over-designed. For example, when the tray crossbeam and the lifting lug 2 are integrally formed, in order to ensure that the structure of the lifting lug 2 meets the design requirements, the tray crossbeam may be over-designed. In addition, the lifting lug 2 can be applied to different battery pack trays 100, and has good versatility.

[0051] According to the battery pack tray 100 of the embodiment of the present invention, the lifting ear 2 is independently formed so that the lifting ear 2 can be individually designed to improve the design flexibility of the battery pack tray 100, facilitate the lightweight design of the battery pack tray 100, thereby improving the mode of the battery pack tray 100, and facilitate improving the vibration stress resistance level of the lifting ear 2, and has strong practicality.

[0052] In some embodiments of the present invention, Figure 1 As shown, the lifting lug 2 and the side frame 11 can be welded and connected. Through the above arrangement, the connection stability between the lifting lug 2 and the side frame 11 can be improved to enhance the overall stability of the battery pack tray 100, and the structure of the battery pack tray 100 can be simplified, which is conducive to achieving a lightweight design.

[0053] In some embodiments of the present invention, Figure 1 As shown, in the first direction F1, the ears 2 on opposite sides of the tray frame 1 are symmetrically arranged. Through the above arrangement, the installation position of the battery pack tray 100 can be kept symmetrical, which is beneficial to improving the installation stability of the battery pack tray 100 and reducing the difficulty of processing and positioning.

[0054] In some embodiments of the present invention, the ear 2 includes a main body portion 21 and a sleeve portion 22. A penetrating mounting hole is formed in the main body portion 21. At least a portion of the sleeve portion 22 is inserted into the mounting hole and is fixedly connected to the main body portion 21 along the circumference of the sleeve portion 22. The main body portion 21 is fixedly connected to the side frame 11.

[0055] For example, refer to Figure 3-Figure 4 As shown, the ear 2 includes a main body 21 and a sleeve 22. The main body 21 and the sleeve 22 are formed separately. A mounting hole is formed in the main body 21, and the mounting hole passes through the main body 21 in the up-down direction. The sleeve 22 is tubular in structure, and the sleeve 22 is matched with the mounting hole. At least part of the sleeve 22 is downwardly inserted into the mounting hole, and the outer peripheral wall of the sleeve 22 is fixedly connected to the top of the main body 21 along the circumference of the sleeve 22, such as by welding. Among them, one side of the main body 21 along the first direction F1 is used to be fixedly connected to the side frame 11 to install the ear 2 on the tray frame 1, and the sleeve 22 is used to pass through the mounting fixture, and the mounting fixture is used to fix the battery pack tray 100 at the installation position.

[0056] Through the above arrangement, the structural strength of the lifting ear 2 can be improved, the supporting effect of the lifting ear 2 on the battery pack tray 100 is enhanced, and the installation stability of the battery pack tray 100 is ensured.

[0057] In some embodiments of the present invention, Figure 4 As shown, in the second direction F2, the ear 2 can be set as a symmetrical molded part, and the first direction F1, the second direction F2 and the axial direction F3 of the mounting hole are set perpendicular to each other. Figure 4 The left and right directions shown, and the second direction F2 is set Figure 1 The front-to-back direction shown in the figure can be set to the axial direction F3 of the mounting hole Figure 1 Up and down directions shown.

[0058] Through the above arrangement, the connection between the lifting ear 2 and the side frame 11 can be made more stable, the impact resistance of the lifting ear 2 in different directions is ensured, and the design rationality of the battery pack tray 100 is improved.

[0059] In some embodiments of the present invention, Figure 4 As shown, a plurality of cavities are provided in the lifting ear 2. Through the above arrangement, the anti-deformation capability of the lifting ear 2 can be improved, and the weight of the lifting ear 2 can be reduced, thereby realizing a lightweight design of the battery pack tray 100.

[0060] In some embodiments of the present invention, the main body 21 includes a top plate 211, a middle plate 212 and a bottom plate 213 arranged in parallel at an axial interval F3 of the mounting hole, the top plate 211 is connected to the middle plate 212 via a first connecting plate 214 to define a first chamber 23, and the bottom plate 213 is connected to the middle plate 212 via a second connecting plate 215 to define a second chamber 24.

[0061] For example, refer to Figure 3-Figure 4 As shown, the main body 21 includes a top plate 211, a middle plate 212 and a bottom plate 213, and the top plate 211, the middle plate 212 and the bottom plate 213 are arranged along the axial direction F3 (reference Figure 1 The top plate 211 is connected to the corresponding side edges of the middle plate 212 via the first connecting plates 214 on both sides along the second direction F2, so as to define a first chamber 23 between the top plate 211 and the middle plate 212. At the same time, the middle plate 212 is connected to the corresponding side edges of the bottom plate 213 via the second connecting plates 215 on both sides along the second direction F2, so as to define a second chamber 24 between the middle plate 212 and the bottom plate 213, and the first chamber 23 and the second chamber 24 are arranged in sequence along the axial direction F3 of the mounting hole. Through the above arrangement, the deformation resistance of the top plate 211 can be improved, which is beneficial to improving the reliability of the battery pack tray 100.

[0062] In some embodiments of the present invention, Figure 3-Figure 4 As shown, the size of the top plate 211 along the second direction F2 can be set to be smaller than the size of the middle plate 212 along the second direction F2, the first connecting plate 214 is arranged to extend downward and outward, the upper end of the first connecting plate 214 is connected to the top plate 211 and the lower end is connected to the middle plate 212, so as to define a first trapezoidal first chamber 23 between the top plate 211 and the middle plate 212. At the same time, the size of the middle plate 212 along the second direction F2 can be set to be equal to the size of the bottom plate 213 along the second direction F2, the second connecting plate 215 extends downward, the upper end of the second connecting plate 215 is connected to the middle plate 212 and the lower end is connected to the bottom plate 213, so as to define a second rectangular second chamber 24 between the top plate 211 and the middle plate 212. In this way, the structure of the lifting ear 2 can be optimized and the reliability of the lifting ear 2 can be improved.

[0063] In some embodiments of the present invention, Figure 4 As shown, the projection of the first chamber 23 on a plane perpendicular to the first direction F1 can be set to be an isosceles trapezoid. Thus, the structure of the lifting ear 2 can be further optimized to improve the reliability of the lifting ear 2.

[0064] In some embodiments of the present invention, Figure 4 As shown, the projection of the second chamber 24 on a plane perpendicular to the first direction F1 can be set to be a rectangle. Thus, the structure of the lifting ear 2 can be further optimized to improve the reliability of the lifting ear 2.

[0065] In some embodiments of the present invention, Figure 3-Figure 4 As shown, the main body 21 can be provided to also include two first partitions 216, the two first partitions 216 are spaced apart along the second direction F2, and the two first partitions 216 are symmetrically arranged about the ear 2 in the middle of the second direction F2, the first partition 216 extends along the axial direction F3 of the mounting hole, the first partition 216 passes through the middle plate 212 and the two ends are respectively connected to the top plate 211 and the bottom plate 213, so that the first partition 216 can be used to separate the first chamber 23 and the second chamber 24.

[0066] Through the above arrangement, the first chamber 23 and the second chamber 24 can be further separated, thereby ensuring the anti-deformation ability of the lifting ear 2 and improving the design rationality of the battery pack tray 100.

[0067] According to the simulation results, the first-order mode of the battery pack with the tray beam and the lifting ear 2 integrally formed is 66.1Hz, which has Figure 3 The first-order mode of the battery pack of the hanging ear 2 is 69.1Hz, which is increased by 3.0Hz, thereby improving the overall stiffness of the battery pack; Figure 3 The 3σ stress of key components in the battery pack of the lifting lug 2 shown is smaller than that of the battery pack in which the pallet crossbeam and the lifting lug 2 are integrally formed, thereby improving the fatigue durability of the battery pack; Figure 3 The weight of the battery pack with the lifting lug 2 shown is less than that of the battery pack with the tray crossbeam and the lifting lug 2 being integrally formed, and the lightweight ratio reaches 68.6%. Thus, the lightweight design of the battery pack tray 100 can be achieved, while improving the stiffness of the lifting lug 2 and the battery pack mode, and reducing the vibration stress level.

[0068] In some embodiments of the present invention, Figure 4 As shown, the dimension of the main body 21 along the second direction F2 can be set to L1, and the dimension of the main body 21 along the axial direction F3 of the mounting hole can be set to H1, satisfying: 1.5≤L1 / H1≤3.0. In other words, the ratio of the dimension L1 of the main body 21 along the second direction F2 to the dimension H1 of the main body 21 along the axial direction F3 of the mounting hole can be 1.5, 1.7, 1.8, 2, 2.2, 2.5, 2.8, 3, etc. In this way, the structure of the main body 21 can be optimized, and the structural stability of the lifting ear 2 can be improved.

[0069] In some embodiments of the present invention, Figure 4 As shown, an angle α1 may be formed between the first connecting plate 214 and the middle plate 212, satisfying: 40°≤α1≤70°. In other words, the angle α1 between the first connecting plate 214 and the middle plate 212 may be 40°, 45°, 50°, 55°, 60°, 65°, 70°, etc. Through the above arrangement, the lifting lug 2 can be easily processed and formed, and the structure of the lifting lug 2 can be optimized, thereby improving the overall structural strength of the lifting lug 2.

[0070] In some embodiments of the present invention, Figure 4 As shown, the distance between the two first partitions 216 along the second direction F2 can be set to L2, satisfying: 10mm≤L2≤30mm. In other words, the distance L2 between the two first partitions 216 along the second direction F2 can be set to 10mm, 15mm, 20mm, 25mm, 30mm, etc. Through the above settings, the middle part of the lifting ear 2 can be effectively supported, the structure of the lifting ear 2 is optimized, the structural stability of the lifting ear 2 is improved, the processing difficulty of the lifting ear 2 can be reduced, and the practicality of the lifting ear 2 is improved.

[0071] In some embodiments of the present invention, the ratio of the dimension L1 of the main body 21 along the second direction F2 to the dimension H1 of the main body 21 along the axial direction F3 of the mounting hole can be set to be greater than or equal to 1.5 and less than or equal to 3, and the angle α1 formed between the first connecting plate 214 and the middle plate 212 can be set to be greater than or equal to 40° and less than or equal to 70°, and the spacing L2 between the two first partitions 216 along the second direction F2 can be set to be greater than or equal to 10 mm and less than or equal to 30 mm. In this way, the structural stability of the lifting ear can be effectively improved.

[0072] In some embodiments of the present invention, Figure 5-Figure 6 As shown, the main body 21 further includes a second partition 217, which is located in the middle of the main body 21 along the second direction F2, and extends along the axial direction F3 of the mounting hole. The second partition 217 passes through the middle plate 212 and its two ends are respectively connected to the top plate 211 and the bottom plate 213, and the second partition 217 is used to separate the first chamber 23 and the second chamber 24. In this way, the deformation resistance of the lifting ear 2 can be improved, and the design rationality of the battery pack tray 100 is improved.

[0073] In some embodiments of the present invention, the main body 21 further includes a third partition 218. The third partition 218 may be connected between the connection between the second partition 217 and the middle plate 212 and one side edge of the bottom plate 213 along the second direction F2; and / or the third partition 218 may be connected between the connection between the second partition 217 and the middle plate 212 and one side edge of the top plate 211 along the second direction F2.

[0074] For example, the third partition plate 218 may be provided in two pieces, one of which is connected between the connection between the second partition plate 217 and the middle plate 212 and one side edge of the bottom plate 213 along the second direction F2, and the other third partition plate 218 is connected between the connection between the second partition plate 217 and the middle plate 212 and the other side edge of the bottom plate 213 along the second direction F2, so that the third partition plate 218 can further separate the second chamber 24; or the third partition plate 218 may be provided in two pieces, one of which is connected between the connection between the second partition plate 217 and the middle plate 212 and one side edge of the top plate 211 along the second direction F2, and the other third partition plate 218 is connected between the connection between the second partition plate 217 and the top plate 211 and the other side edge of the bottom plate 213 along the second direction F2, so that the third partition plate 218 can further separate the first chamber 23. In this way, the structure of the lifting ear 2 can be optimized and the reliability of the lifting ear 2 can be improved.

[0075] According to the simulation results, the first-order mode of the battery pack with the tray beam and the lifting ear 2 integrally formed is 66.1Hz, which has Figure 5 The first-order mode of the battery pack of the hanging ear 2 is 69.2Hz, which is increased by 3.1Hz, thereby improving the overall stiffness of the battery pack; Figure 5 The 3σ stress of key components in the battery pack of the lifting lug 2 shown is smaller than that of the battery pack in which the pallet crossbeam and the lifting lug 2 are integrally formed, thereby improving the fatigue durability of the battery pack; Figure 5 The weight of the battery pack with the lifting lug 2 shown is less than that of the battery pack with the tray crossbeam and the lifting lug 2 being integrally formed, and the lightweight ratio reaches 61.7%. Thus, the lightweight design of the battery pack tray 100 can be achieved, while improving the stiffness of the lifting lug 2 and the battery pack mode, and reducing the vibration stress level.

[0076] In some embodiments of the present invention, Figure 6 As shown, the main body 21 can be moved along the second direction F2 (reference Figure 1 The dimension of the main body 21 in the axial direction F3 (refer to Figure 1 The dimension of the main body 21 along the second direction F2 (in the vertical direction shown in FIG. 1 ) is set to H1, satisfying: 1.5≤L1 / H1≤2.5. In other words, the ratio of the dimension L1 of the main body 21 along the second direction F2 to the dimension H1 of the main body 21 along the axial direction F3 of the mounting hole can be 1.5, 1.7, 1.8, 2, 2.2, 2.5, etc. In this way, the structure of the main body 21 can be optimized, and the structural stability of the lifting ear 2 can be improved.

[0077] In some embodiments of the present invention, Figure 6 As shown, an angle α1 may be formed between the first connecting plate 214 and the middle plate 212, satisfying: 40°≤α1≤80°. In other words, the angle α1 between the first connecting plate 214 and the middle plate 212 may be 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, etc. Through the above arrangement, the lifting lug 2 can be easily processed and formed, and the structure of the upper part of the lifting lug 2 can be optimized, thereby improving the overall structural strength of the lifting lug 2.

[0078] In some embodiments of the present invention, Figure 6 As shown, the ratio of the dimension L1 of the main body 21 along the second direction F2 to the dimension H1 of the main body 21 along the axial direction F3 of the mounting hole can be set to be greater than or equal to 1.5 and less than or equal to 2.5, and the angle α1 formed between the first connecting plate 214 and the middle plate 212 can be set to be greater than or equal to 40° and less than or equal to 80°. In this way, the structural stability of the lifting ear can be effectively improved.

[0079] In some embodiments of the present invention, Figure 3 As shown, the first partition plate 216 can be connected to the outer wall of the sleeve portion 22. Thus, the connection area between the main body portion 21 and the sleeve portion 22 can be increased to improve the overall structural stability of the lifting ear 2.

[0080] In some embodiments of the present invention, Figure 5 As shown, the second partition plate 217 can be connected to the outer wall of the sleeve portion 22. Thus, the connection area between the main body portion 21 and the sleeve portion 22 can be increased to improve the overall structural stability of the lifting ear 2.

[0081] In some embodiments of the present invention, the main body 21 and the sleeve 22 may be integrally formed, thereby increasing the connection strength between the main body 21 and the sleeve 22 to improve the overall structural stability of the lifting eye 2.

[0082] The invention also provides a battery pack.

[0083] A battery pack according to an embodiment of the present invention includes the battery pack tray 100 according to any one of the above embodiments.

[0084] According to the battery pack of the embodiment of the present invention, the weight of the battery pack tray 100 is reduced, thereby achieving lightweight battery pack, while improving the rigidity of the lifting lug 2 and the vibration resistance of the battery pack.

[0085] The present invention further provides an electrical device.

[0086] The electric device according to an embodiment of the present invention includes the battery pack according to any of the above embodiments. It should be noted that the electric device may be a new energy vehicle or a hybrid vehicle.

[0087] According to the electric equipment of the embodiment of the present invention, the weight of the battery pack tray 100 is reduced, thereby achieving lightweight battery pack, while improving the rigidity of the lifting lug 2 and the vibration resistance of the battery pack.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0089] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery pack tray (100), characterized in that: include: A pallet frame (1), wherein the pallet frame (1) is provided with a receiving cavity (12) and in a first direction (F1), the pallet frame (1) comprises two side frames (11) arranged opposite to each other; A plurality of lifting ears (2), wherein the plurality of lifting ears (2) are respectively arranged on two opposite sides of the tray frame (1) in the first direction (F1), and the lifting ears (2) are connected to the side wall of the side frame (11) facing away from the accommodating cavity (12).

2. The battery pack tray (100) according to claim 1, characterized in that: The lifting lug (2) and the side frame (11) are connected by welding.

3. The battery pack tray (100) according to claim 1, characterized in that: In the first direction (F1), the lifting ears (2) on opposite sides of the pallet frame (1) are symmetrically arranged.

4. The battery pack tray (100) according to claim 1, characterized in that: The lifting ear (2) comprises a main body (21) and a sleeve (22); a through mounting hole is formed in the main body (21); at least a portion of the sleeve (22) is inserted into the mounting hole and is fixedly connected to the main body (21) along the circumference of the sleeve (22); and the main body (21) is fixedly connected to the side frame (11).

5. The battery pack tray (100) according to claim 4, characterized in that: In the second direction (F2), the lifting ear (2) is a symmetrical molded part, and the first direction (F1), the second direction (F2) and the axial direction (F3) of the mounting hole are perpendicular to each other.

6. The battery pack tray (100) according to claim 5, characterized in that: A plurality of cavities are arranged in the lifting ear (2).

7. The battery pack tray (100) according to claim 6, characterized in that: The main body (21) comprises a top plate (211), a middle plate (212) and a bottom plate (213) which are arranged in parallel and spaced apart in the axial direction (F3) of the mounting hole; the top plate (211) is connected to the middle plate (212) via a first connecting plate (214) to define a first chamber (23); and the bottom plate (213) is connected to the middle plate (212) via a second connecting plate (215) to define a second chamber (24).

8. The battery pack tray (100) according to claim 7, characterized in that: The size of the top plate (211) along the second direction (F2) is smaller than the size of the middle plate (212) along the second direction (F2), and the size of the middle plate (212) along the second direction (F2) is equal to the size of the bottom plate (213) along the second direction (F2).

9. The battery pack tray (100) according to claim 8, characterized in that: The projection of the first chamber (23) on a plane perpendicular to the first direction (F1) is an isosceles trapezoid; and / or the projection of the second chamber (24) on a plane perpendicular to the first direction (F1) is a rectangle.

10. The battery pack tray (100) according to claim 8, characterized in that: The main body (21) further comprises two first partitions (216) spaced apart along the second direction (F2), the two first partitions (216) being symmetrically arranged in the middle of the lifting ear (2) in the second direction (F2), the first partition (216) extending along the axial direction (F3) of the mounting hole and being used to separate the first chamber (23) and the second chamber (24).

11. The battery pack tray (100) according to claim 10, characterized in that: The dimension of the main body (21) along the second direction (F2) is L1, and the dimension of the main body (21) along the axial direction (F3) of the mounting hole is H1, satisfying: 1.5≤L1 / H1≤3.

0.

12. The battery pack tray (100) according to claim 10, characterized in that: An included angle α1 is formed between the first connecting plate (214) and the middle plate (212), satisfying the following relationship: 40°≤α1≤70°.

13. The battery pack tray (100) according to any one of claims 10 to 12, characterized in that: The distance between the two first partitions (216) along the second direction (F2) is L2, which satisfies: 10 mm ≤ L2 ≤ 30 mm.

14. The battery pack tray (100) according to claim 8, characterized in that: The main body (21) further comprises a second partition (217), wherein the second partition (217) is located in the middle of the main body (21) along the second direction (F2), and the second partition (217) extends along the axial direction (F3) of the mounting hole and is used to separate the first chamber (23) and the second chamber (24).

15. The battery pack tray (100) according to claim 14, characterized in that: The main body (21) further comprises a third partition (218), wherein the third partition (218) is connected between a connection point between the second partition (217) and the middle plate (212) and an edge of one side of the bottom plate (213) along the second direction (F2); and / or, The third partition plate (218) is connected between the connection point between the second partition plate (217) and the middle plate (212) and a side edge of the top plate (211) along the second direction (F2).

16. The battery pack tray (100) according to claim 15, characterized in that: The dimension of the main body (21) along the second direction (F2) is L1, and the dimension of the main body (21) along the axial direction (F3) of the mounting hole is H1, satisfying: 1.5≤L1 / H1≤2.

5.

17. The battery pack tray (100) according to claim 15 or 16, characterized in that: An included angle α1 is formed between the first connecting plate (214) and the middle plate (212), satisfying the following relationship: 40°≤α1≤80°.

18. The battery pack tray (100) according to claim 10 or 14, characterized in that: The first partition plate (216) is connected to the outer wall of the sleeve portion (22); or the second partition plate (217) is connected to the outer wall of the sleeve portion (22).

19. The battery pack tray (100) according to claim 4, characterized in that: The main body (21) and the sleeve (22) are integrally formed.

20. A battery pack, characterized in that: Comprising a battery pack tray (100) according to any one of claims 1-19.

21. An electrical equipment, characterized in that: Comprising a battery pack according to claim 20.

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