Battery tray, battery pack and electric device

Abstract

A battery tray (100), a battery pack and an electric device. The battery tray (100) comprises an annular frame (110), a support portion (120) provided at the bottom of the annular frame (110), and a bottom plate (200); a first adhesive tank (121) and a second adhesive tank (122) are formed in the support portion (120); the first adhesive tank (121) is configured to accommodate a first adhesive (300), the second adhesive tank (122) is configured to accommodate a second adhesive (400), and the second adhesive tank (122) is annular and is provided along the contour of the support portion (120); and the bottom plate (200) is connected to the support portion (120) in a sealed manner by means of the first adhesive (300) provided in the first adhesive tank (121) and the second adhesive (400) provided in the second adhesive tank (122). The battery tray (100) can improve the sealing level between the bottom plate (200) and the support portion (120), and meet various working conditions of a battery pack.

Description

Battery trays, battery packs and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 202420276942.1, entitled “Battery Tray, Battery Pack and Electrical Equipment,” filed with the Patent Office of China on February 2, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present disclosure relates to the technical field of battery structures, and in particular, to a battery tray, a battery pack, and an electrical device. Background Art

[0004] In related technologies, power batteries consist of a tray and the batteries located within it. To ensure a sealed battery pack, the tray's bottom typically includes a base plate, with the batteries located within the battery mounting space enclosed by the tray and base plate. Because the battery pack must withstand diverse operating conditions without sacrificing sealing, the sealing requirements between the base plate and the tray are extremely high. Therefore, achieving a better seal between the base plate and the tray has become a pressing technical challenge.

[0005] Summary of the Invention

[0006] The purpose of the present disclosure is to provide a battery tray, a battery pack and an electrical device, wherein the battery tray can improve the sealing level between the bottom plate and the supporting part of the tray to meet various usage conditions of the battery pack.

[0007] In order to achieve the above objectives, the present disclosure provides a battery tray in a first aspect, comprising:

[0008] Ring frame;

[0009] a support portion, disposed at the bottom of the annular frame, the support portion being formed with a first glue groove and a second glue groove, the first glue groove being used to accommodate a first colloid, the second glue groove being used to accommodate a second colloid, the second glue groove being annular and arranged along the contour of the support portion; and

[0010] The bottom plate is sealed and connected to the supporting portion through the first colloid arranged in the first glue groove and the second colloid arranged in the second glue groove.

[0011] Optionally, the first glue groove is located inside the second glue groove.

[0012] Optionally, the first colloid is structured as structural adhesive; and the second colloid is structured as sealant.

[0013] Optionally, a glue overflow port is formed on the inner side of the first glue groove.

[0014] Optionally, there are multiple glue overflow openings, and the multiple glue overflow openings are arranged at intervals along the inner edge of the first glue groove.

[0015] Optionally, the width of the first glue groove is greater than 24 mm; the width of the second glue groove is greater than 5 mm; and / or

[0016] The depth of the first glue groove and the second glue groove is greater than or equal to 1 mm.

[0017] Optionally, the base plate is configured as a PCM board.

[0018] Optionally, a reinforcing rib structure is formed or provided on the side wall of the annular frame.

[0019] Optionally, the reinforcing rib structure includes a first reinforcing rib provided on the inner side wall of the annular frame; and / or

[0020] The reinforcing rib structure includes a second reinforcing rib provided on the outer side wall of the annular frame.

[0021] Optionally, the first reinforcing ribs are configured as first ribs arranged at intervals along the length direction of at least one side frame of the annular frame and extending along the depth direction of the annular frame;

[0022] The second reinforcing ribs are configured as second ribs extending along a length direction of at least one side frame of the annular frame and arranged at intervals along a depth direction of the annular frame.

[0023] Optionally, the cross-sectional area of ​​the first rib gradually increases in a direction toward the bottom plate.

[0024] Optionally, the battery tray further includes a lifting lug provided on an outer side wall of the annular frame.

[0025] Optionally, the lifting ear includes a lifting ear body and a lifting ear reinforcement rib provided on the lifting ear body.

[0026] Optionally, the support portion includes an annular support sub-portion connected to the bottom of the inner side wall of the annular frame and a first support sub-portion provided inside the annular support sub-portion and connecting at least two opposite sides of the annular support sub-portion;

[0027] The first glue groove is provided on the annular supporting sub-part and the first supporting sub-part;

[0028] The second glue groove is provided on the annular supporting sub-portion and is spaced apart from the first glue groove.

[0029] Optionally, the tray is integrally die-cast.

[0030] According to a second aspect of the present disclosure, a battery pack is provided, comprising the battery tray provided in the first aspect of the present disclosure.

[0031] According to a third aspect of the present disclosure, an electric device is further provided, wherein the electric device includes the battery pack provided in the second aspect of the present disclosure.

[0032] The battery tray disclosed herein comprises an annular frame, a support portion formed with a first adhesive groove and a second adhesive groove, and a bottom plate. The first adhesive groove is used to accommodate a first colloid, and the second adhesive groove is used to accommodate a second colloid. The bottom plate is sealed to the support portion via the first colloid disposed in the first adhesive groove and the second colloid disposed in the second adhesive groove. This improves the sealing level between the bottom plate and the support portion, meeting various operating conditions of the battery pack.

[0033] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0035] FIG1 is a structural diagram of a battery tray provided in some embodiments of the present disclosure.

[0036] FIG2 is a disassembled diagram of a battery tray provided in some embodiments of the present disclosure.

[0037] FIG3 is a structural diagram of a ring frame of a battery tray provided in some embodiments of the present disclosure.

[0038] FIG. 4 is an enlarged view of section A in FIG. 3 .

[0039] FIG5 is a structural diagram of the annular frame of the battery tray provided in some embodiments of the present disclosure from another perspective.

[0040] FIG. 6 is an enlarged view of portion B in FIG. 5 . DETAILED DESCRIPTION

[0041] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0042] In the present disclosure, unless otherwise specified, directional words such as "inside" and "outside" refer to the inside and outside of the outline of the corresponding component; "far" and "near" refer to the distance between the corresponding structure or the corresponding component and the distance between the corresponding structure or component and the corresponding component. In addition, the terms "first" and "second" used in the present disclosure are intended to distinguish one element from another and do not have order or importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be understood as limiting the present disclosure.

[0043] In related technologies, power batteries typically consist of a tray and the batteries located within it. To ensure a sealed battery pack, the tray's bottom typically includes a base plate, with the batteries located within the battery mounting space enclosed by the tray and base plate. Because battery packs must withstand multiple operating conditions, such as vibration, rock impact, high and low temperatures, and water wading, and their seals must not fail under these diverse conditions, the sealing requirements between the base plate and the tray are extremely high. Therefore, achieving a better seal between the two has become a pressing technical challenge.

[0044] In addition, the battery tray includes an aluminum alloy battery tray, which includes a base plate and a frame. The frame is wrapped around the outer edge of the base plate and is welded to the base plate. The lower surface of the frame and the lower surface of the base plate are in the same plane. The battery tray has the following problems:

[0045] 1. The pallet is a welded structure with high processing efficiency and low cost.

[0046] 2. The mechanical properties of the welding part decrease.

[0047] 3. The welding parts are prone to air leakage, and the weld scars need to be glued.

[0048] 4. The bottom surface of the tray is prone to arcing.

[0049] 5. The structure is not the lightest option.

[0050] Based on this, the present disclosure provides a battery tray, a battery pack and an electrical device to solve at least part of the above technical problems.

[0051] In order to achieve the above-mentioned purpose, as shown in Figures 1 to 6, an embodiment of the present disclosure provides a battery tray, which includes an annular frame 110, and a support portion 120 and a bottom plate 200 arranged at the bottom of the annular frame 110. The support portion 120 is formed with a first glue groove 121 and a second glue groove 122. The first glue groove 121 is used to set the first glue 300, and the second glue groove 122 is used to set the second glue 400. The second glue groove 122 is annular and is arranged along the contour of the support portion 120; the bottom plate 200 is sealed and connected to the support portion 120 through the first glue 300 and the second glue 400 respectively.

[0052] Through the above technical solution, the battery tray 100 of the present disclosure includes an annular frame 110, a support portion 120 formed with a first adhesive groove 121 and a second adhesive groove 122, and a bottom plate 200. The first adhesive groove 121 is used to accommodate a first colloid 300, and the second adhesive groove 122 is used to accommodate a second colloid 400. The second adhesive groove 122 is annular and arranged along the contour of the support portion 120. The bottom plate 200 can be sealed to the support portion 120 via the first colloid 300 arranged in the first adhesive groove 121 and the second colloid 400 arranged in the second adhesive groove 122. This improves the sealing level between the bottom plate 200 and the support portion 120 to meet various operating conditions of the battery pack.

[0053] It should be noted that the first colloid 300 is configured as a structural adhesive, and the second colloid 400 is configured as a sealant. The first adhesive groove 121 is located inside the second adhesive groove 122. The structural adhesive achieves a high-strength bond between the base plate 200 and the support portion 120, while the sealant provides a sealed connection between the base plate 200 and the support portion 120, thereby improving the sealing level between the base plate 200 and the support portion 120.

[0054] In the battery tray disclosed herein, structural adhesive is provided in the first adhesive groove 121, and sealant is provided in the second adhesive groove 122. The bottom plate 200 is sealed to the support portion 120 via the structural adhesive in the first adhesive groove 121 and the sealant in the second adhesive groove 122. The structural adhesive achieves a high-strength bond between the bottom plate 200 and the support portion 120, while the sealant provides a sealed connection between the bottom plate 200 and the support portion 120. This improves the sealing level between the bottom plate 200 and the support portion 120, meeting various operating conditions of the battery pack.

[0055] The annular frame 110 and the support portion 120 may be constructed using any suitable structure. The support portion 120 may be an annular structure, with its side edges connected to the bottom of the inner sidewall of the annular frame 110. The two may be welded or integrally formed, including but not limited to integral die-casting. For example, the annular frame 110 and the support portion 120 may be integrally formed using high-strength aluminum alloy high-vacuum, high-pressure die-casting. There are no welds between the annular frame 110 and the support portion 120, resulting in a dense internal structure and high sealing performance.

[0056] The base plate 200 can be made of any suitable structure or material. For example, the base plate 200 is constructed as a PCM board. PCM can be made of a mixture of polycarbonate (PC) and organic glass (PMMA). This material not only has good flexibility and curability, but also can change its physical state according to changes in external temperature. PCM boards are generally used to manufacture panels of household appliances such as refrigerators, washing machines, and water heaters. It combines the properties of cold-rolled steel sheets and galvanized steel sheets, and is treated with special amino resins and catalysts to give the product better performance. In addition, PCM boards are also corrosion-resistant and flexible, and are suitable for the needs of high-speed and precision processing equipment. PCM is widely used, mainly in panels and side panels of refrigerators and washing machines.

[0057] The battery tray 100 can include a thin-walled, integrally die-cast annular frame 110, a support portion 120, and a PCM base plate 200. The support portion 120 is connected to the base plate 200 using structural adhesive, and a sealant is used around the entire perimeter to ensure a seal. The structure that supports the battery pack utilizes a thin-walled, die-cast aluminum alloy structure for the annular frame 110. The overall wall thickness is thin, and reinforcing ribs are used to increase the strength of the load-bearing parts. The die-cast aluminum alloy can be a heat-treatment-free, high-strength, high-toughness, and high-corrosion-resistant aluminum alloy. The bottom is not a critical load-bearing component and is constructed using a PCM board to reduce weight and provide insulation between the module and the box. Aluminum alloy material composition: Si: 9.5-10.5%; Mg: 0.15-0.2%; Mn: 0.5-0.7%; Fe: <0.15%; Cu: <0.03%; Zn: <0.04%; Ti: 0.06-0.10%; Sr: 0.015-0.027%; others: <0.05%; others total <0.15%; Al: balance; formed by high vacuum die casting process.

[0058] In order to ensure that the adhesive surface in the first adhesive groove 121 is free of air holes and adhesive breakage after the adhesive is cured, as shown in FIG. 3 and FIG. 4 , in some embodiments, an adhesive overflow port 121 a is formed inside the first adhesive groove 121 .

[0059] The upper support surface of the support portion 120 is provided with two adhesive grooves, including a first adhesive groove 121 and a second adhesive groove 122. The first adhesive groove 121 is used to connect the base plate 200 (e.g., a high-strength fiberglass composite base plate 200) to the support portion 120 with a high-strength structural adhesive. Glue overflow openings 121a are evenly distributed around the inner periphery of the first adhesive groove 121 to ensure that the adhesive surface is free of air holes and adhesive breakage after curing, thereby ensuring the bonding strength of the base plate 200. The second adhesive groove 122 is used for applying high-performance sealant to ensure a tight seal between the base plate 200 and the support portion 120.

[0060] In some other embodiments, there are multiple overflow openings 121a, and the multiple overflow openings 121a are spaced apart along the inner edge of the first glue groove 121. The spacing between two adjacent overflow openings 121a along the extension direction of the first glue groove 121 can be the same or different, both of which allow excess structural adhesive inside the first glue groove 121 to be discharged through the overflow openings 121a, thereby improving the bonding effect between the base plate 200 and the support portion 120 at the location of the first glue groove 121.

[0061] Optionally, the width of the first glue groove 121 is greater than 24 mm, and the width of the first glue groove 121 can be specifically referred to as W1 in Figure 4; the width of the second glue groove 122 is greater than 5 mm, and the width of the second glue groove 122 can be specifically referred to as W2 in Figure 4; and / or, the depth of the first glue groove 121 and the second glue groove 122 is greater than or equal to 1 mm.

[0062] The depth of the first glue groove 121 and the second glue groove 122 can both be 1 mm. The first glue groove 121 is filled with structural glue and has a width greater than 24 mm, securely connecting the bottom plate 200 (e.g., a PCM board) to the bottom of the box frame. Glue overflow openings 121a are evenly distributed on the inner side of the first glue groove 121 to prevent air from being exhausted and excess structural glue from overflowing during gluing, thereby ensuring that the PCM board is transferred to the required position and the gluing area is sufficient. The second glue groove 122 is filled with sealant and has a width greater than 5 mm, ensuring a reliable seal at the boundary between the PCM board and the support portion 120. This ensures that the sealing requirements are met under conditions such as vibration and ball impact, ensuring the functional safety of the battery system.

[0063] To achieve a lightweight battery tray 100, in some embodiments, the sidewalls of the annular frame 110 are formed with reinforcing rib structures 1101, which can be integrally formed, for example. The annular frame 110 can be thin-walled to reduce the weight of the battery tray 100. Furthermore, to meet strength requirements, reinforcing rib structures 1101 can be provided on the sidewalls of the annular frame 110, including by welding or other connection methods, to increase strength and meet the requirements of battery pack use.

[0064] The reinforcement rib structure 1101 can be designed in any suitable form and can be arranged on the inner wall or outer wall of the annular frame 110, or can be arranged on both the inner wall and the outer wall. In some embodiments, the reinforcement rib structure 1101 includes a first reinforcement rib 130 provided on the inner wall of the annular frame 110. The first reinforcement rib 130 can be constructed in any suitable structure, for example, a strip reinforcement rib or a mesh reinforcement rib or a combination of the two. Through the cooperation between the first reinforcement rib 130 and the annular frame 110, the strength of the battery tray 100 can be guaranteed while reducing the overall weight.

[0065] In other embodiments, the reinforcing rib structure 1101 includes second reinforcing ribs 140 disposed on the outer sidewall of the annular frame 110. The second reinforcing ribs 140 may also be constructed using any suitable structure, such as strip-shaped reinforcing ribs, mesh-shaped reinforcing ribs, or a combination of both. The cooperation between the second reinforcing ribs 140 and the annular frame 110 can also ensure the strength of the battery tray 100 while reducing the overall weight.

[0066] In some other embodiments, the reinforcing rib structure 1101 includes a first reinforcing rib 130 provided on the inner sidewall of the annular frame 110, and a second reinforcing rib 140 provided on the outer sidewall of the annular frame 110. This solution further improves the structural strength of the annular frame 110 and enhances the performance of the battery pack by providing reinforcing ribs on both the inner and outer sidewalls of the annular frame 110.

[0067] The first reinforcing rib 130 and the second reinforcing rib 140 can be constructed using any suitable structure. As shown in Figure 3, in some embodiments of the present disclosure, the first reinforcing rib 130 is constructed as a first rib 131, which is arranged at intervals along the length direction of at least one side frame 111 of the annular frame 110 and extends along the depth direction of the annular frame 110; the second reinforcing rib 140 is constructed as a second rib 141, which extends along the length direction of at least one side frame 111 of the annular frame 110 and is arranged at intervals along the depth direction of the annular frame 110.

[0068] The first reinforcing rib 130 is disposed on the inner side wall of the annular frame 110 and extends along the depth direction of the annular frame 110. The first reinforcing rib 130 may be a plurality of first ribs 131, and the plurality of first ribs 131 may be arranged at intervals along the length direction of at least one side frame 111 of the annular frame 110. For example, when the annular frame 110 is a quadrilateral structure surrounded by four side frames 111, the first rib 131 may be disposed on the inner side wall of one side frame 111 of the quadrilateral structure, or on the inner side walls of two, three, or four side frames 111. For example, when disposed on the inner side walls of two side frames 111, the two side frames 111 may be disposed opposite each other.

[0069] In addition, the second reinforcing ribs 140 can be configured as second ribs 141 extending along the length direction of one side frame 111, two side frames 111, three side frames 111, or four side frames 111 of the annular frame 110 and arranged at intervals along the depth direction of the annular frame 110. The second reinforcing ribs 140 cooperate with the first reinforcing ribs 130 to improve the overall strength of the battery tray 100.

[0070] The first reinforcing rib 130 and the second reinforcing rib 140 may both be strip-shaped ribs. Since they extend in different directions, they form vertical and horizontal or mesh supports to improve the structural strength of the battery tray 100 .

[0071] In some embodiments, the cross-sectional area of ​​the first rib 131 gradually increases in the direction toward the bottom plate 200. The first rib 131 can be constructed as a structure with gradually increasing height, which improves strength while facilitating demolding of the mold. Furthermore, it can also, to a certain extent, achieve a guiding function during battery installation. At the same time, as the depth increases, the height gradually increases, making the bottom strength more prominent. Of course, the first rib 131 can also have the same height and width in the extension direction, which can also achieve the effect of improving strength.

[0072] The wall thickness of the four side frames 111 of the one-piece annular frame 110 can be 3mm. The outer horizontal reinforcement ribs make the box structure flat, which is convenient for the assembly of the outer insulation material; the inner vertical reinforcement ribs facilitate mold demolding; the inner and outer reinforcement ribs design improves the strength of the die-cast aluminum box frame.

[0073] To facilitate lifting, transportation, and installation of the battery tray 100 , in some embodiments, the battery tray 100 further includes a lifting lug 150 disposed on the outer side wall of the annular frame 110 .

[0074] To further reduce weight, the lifting lug 150 includes a lifting lug body 151 and a lifting lug reinforcement rib 152 disposed on the lifting lug body 151. By constructing the lifting lug 150 with the lifting lug body 151 and the lifting lug reinforcement rib 152, the weight of the lifting lug 150 can be reduced while maintaining strength, further achieving the lightweight requirements of the battery tray 100.

[0075] As shown in Figures 5 and 6, the wall thickness of the lifting ear body 151 can be 3 mm, and the reinforcement ribs can be star-shaped reinforcement ribs. The battery pack is installed on the vehicle through the lifting ears 150. The six lifting ears 150 bear the weight of the battery pack. The force is evenly distributed when bearing the load, and there is no stress concentration area. The wall thickness of the lifting ears 150 is uniform and the load-bearing performance is high.

[0076] The support portion 120 can be constructed in any suitable form. In some embodiments, the support portion 120 includes an annular support sub-portion 1201 connected to the inner sidewall of the annular frame 110, and a first support sub-portion 1202 disposed within the annular support sub-portion 1201 and connecting at least two opposite sides of the annular support sub-portion 1201. A first glue groove 121 is disposed in the annular support sub-portion 1201 and the first support sub-portion 1202. The first glue groove 121 includes a glue groove 1, which is located on the annular support sub-portion 1201 and is annular in shape and arranged along the contour of the annular support portion 1201. A second glue groove 122 is also annular in shape and arranged along the contour of the annular support sub-portion 1201. The second glue groove 122 is spaced apart from the glue groove 1 on the annular support portion 1201. In addition, in order to further improve the overall support strength, the support portion 120 also includes at least one first support sub-portion 1202 connecting the opposite sides of the annular support sub-portion 1201. A glue groove 2 is formed on the first support sub-portion 1202, which is connected to the glue groove 1 of the annular support sub-portion 1201. The glue groove 2 is located on the first support sub-portion 1202. The glue groove 2 is arranged along the extension direction of the first support sub-portion 1202, wherein the glue groove 1 and the glue groove 2 together form the first glue groove 121 for filling the structural glue. The first support sub-portion 1202 can further support the bottom of the battery, and its wall thickness can be 5mm. In addition, in order to further improve the strength of the first support sub-portion 1202, a support reinforcement rib 1203 can be formed on the first support sub-portion 1202, such as a mesh reinforcement rib to increase its structural strength.

[0077] The embodiment of the present disclosure provides a battery pack, which may include a battery cell module and the battery tray 100 of the above embodiment. Therefore, the battery pack also has all the advantages of the above battery tray 100, which will not be repeated here.

[0078] The present disclosure also provides an electrical device including the battery pack of the aforementioned embodiment. Thus, the electrical device also possesses all the advantages of the aforementioned battery pack. The electrical device includes a vehicle or other charging / discharging equipment for power supply.

[0079] The battery tray 100, battery pack, and electrical equipment disclosed herein have the following advantages:

[0080] The battery tray 100 is highly lightweight: Since the weight of the battery pack accounts for a large proportion of the entire vehicle equipment, the requirement for lightweighting the battery pack is more urgent; based on this requirement, the battery tray 100 of this embodiment adopts a frame structure and is die-cast from heat-treated aluminum alloy. The wall thickness of the box is designed to be 3mm, and mesh reinforcement ribs are designed on the four sides of the box, the lifting ears 150 and the load-bearing area at the bottom of the box to meet the vehicle's requirements for lightweight and high strength of the battery tray 100. The battery tray 100 is highly lightweight.

[0081] Battery tray 100 has high insulation and voltage resistance: The battery tray 100 must meet the insulation and voltage resistance requirements for carrying high-voltage battery modules and charging and discharging. To meet these requirements, the bottom of the battery tray 100 utilizes a high-strength PCM base plate 200. After the battery modules are assembled into the housing, the bottom surface mates with the PCM, ensuring high insulation and voltage resistance. This addresses the existing issues of high assembly dimensions between the modules and the battery tray 100, the need for additional insulation coating, and the resulting arcing issues in the battery pack. This patented design integrates bottom sealing, load-bearing, and insulation, resulting in a high insulation and voltage resistance rating for the battery tray 100 at a low cost.

[0082] The battery box has a high sealing level: the battery pack needs to meet multiple working conditions such as vibration, stone impact, high and low temperature, and wading. Moreover, the battery pack seal must not fail under various working conditions, and the battery pack must also have its original functionality, so the sealing requirements for the battery pack are extremely high. Based on this requirement, the battery tray 100 frame is made of high-strength aluminum alloy high-vacuum high-pressure die-casting. The frame has no welding points, the internal structure is dense, and the sealing is high. The bottom support surface of the battery tray 100 (support part 120) is equipped with two circles. Glue groove (first glue groove 121 and second glue groove 122); the inner ring glue groove (first glue groove 121) is used to connect the high-strength glass fiber composite base plate 200 and the support surface of the die-cast battery tray 100 with high bonding strength structural glue. Overflow ports 121a are evenly arranged around the glue groove to ensure that there are no air holes and no glue breaks on the bonding surface after the glue is cured, thereby ensuring the bonding strength of the base plate 200; the outer ring glue groove (second glue groove 122) is used to apply high-performance sealant to ensure the sealing between the glass fiber base plate 200 and the die-casting of the box frame.

[0083] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0084] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0085] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A battery tray (100), characterized in that: include: annular frame (110); a support portion (120) disposed at the bottom of the annular frame (110), the support portion (120) being formed with a first glue groove (121) and a second glue groove (122), the first glue groove (121) being used to accommodate a first colloid (300), the second glue groove (122) being used to accommodate a second colloid (400), the second glue groove (122) being annular and being arranged along the contour of the support portion (120); and The bottom plate (200) is sealed and connected to the supporting portion (120) via the first colloid (300) provided in the first colloid groove (121) and the second colloid (400) provided in the second colloid groove (122).

2. The battery tray according to claim 1, wherein: The first glue groove (121) is located inside the second glue groove (122).

3. The battery tray according to claim 1 or 2, characterized in that: The first colloid (300) is configured as a structural adhesive; the second colloid (400) is configured as a sealant.

4. The battery tray according to any one of claims 1 to 4, characterized in that: A glue overflow port (121a) is formed on the inner side of the first glue groove (121).

5. The battery tray according to claim 4, characterized in that: There are multiple glue overflow openings (121a), and the multiple glue overflow openings (121a) are arranged at intervals along the inner edge of the first glue groove (121).

6. The battery tray according to any one of claims 1 to 5, characterized in that: The width of the first glue groove (121) is greater than 24 mm; the width of the second glue groove (122) is greater than 5 mm; and / or The depth of the first glue groove (121) and the second glue groove (122) is greater than or equal to 1 mm.

7. The battery tray according to any one of claims 1 to 6, characterized in that: The bottom plate (200) is constructed as a PCM plate.

8. The battery tray according to any one of claims 1 to 7, characterized in that: The side wall of the annular frame (110) is formed with or provided with a reinforcing rib structure (1101).

9. The battery tray according to claim 8, characterized in that: The reinforcing rib structure (1101) comprises a first reinforcing rib (130) provided on the inner side wall of the annular frame (110); and / or The reinforcing rib structure (1101) includes a second reinforcing rib (140) provided on the outer side wall of the annular frame (110).

10. The battery tray according to claim 9, characterized in that: The first reinforcing ribs (130) are configured as first ribs (131) arranged at intervals along the length direction of at least one side frame (111) of the annular frame (110) and extending along the depth direction of the annular frame (110); The second reinforcing rib (140) is constructed as a second rib (141) extending along the length direction of at least one side frame (111) of the annular frame (110) and arranged at intervals along the depth direction of the annular frame (110).

11. The battery tray according to claim 10, characterized in that: The cross-sectional area of the first rib (131) gradually increases in a direction toward the bottom plate (200).

12. The battery tray according to any one of claims 1 to 11, characterized in that: The battery tray further includes a hanging ear (150) provided on the outer side wall of the annular frame (110).

13. The battery tray according to claim 12, characterized in that: The lifting lug (150) comprises a lifting lug body (151) and a lifting lug reinforcement rib (152) provided on the lifting lug body (151).

14. The battery tray according to any one of claims 1 to 13, characterized in that: The support portion (120) comprises an annular support sub-portion (1201) connected to the bottom of the inner side wall of the annular frame (110), and a first support sub-portion (1202) provided inside the annular support sub-portion (1201) and connecting at least two opposite sides of the annular support sub-portion (1201); The first glue groove (121) is provided on the annular supporting sub-portion (1201) and the first supporting sub-portion (1202); The second glue groove (122) is provided on the annular supporting sub-portion (1201) and is spaced apart from the first glue groove (121).

15. The battery tray according to any one of claims 1 to 14, characterized in that: The tray is integrally die-cast.

16. A battery pack, characterized in that: The battery pack comprises the battery tray (100) according to any one of claims 1 to 15.

17. An electrical device, characterized in that: The electrical equipment includes the battery pack according to claim 16.

Images