Battery tray, battery pack and electric equipment

Abstract

The utility model relates to a battery tray, a battery pack and electric equipment, the battery tray comprises an annular frame, a supporting part arranged at the bottom of the annular frame and a bottom plate, a first glue groove and a second glue groove are formed in the supporting part, the first glue groove is used for arranging a first glue body, and the second glue groove is used for arranging a second glue body; the bottom plate is connected to the supporting part in a sealed mode through a first rubber body arranged in the first rubber groove and a second rubber body arranged in the second rubber groove. According to the battery tray, the sealing grade between the bottom plate and the supporting part can be improved, and various use working conditions of a battery pack are met.

Description

Technical Field

[0001] 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

[0002] Power batteries usually include a tray and batteries inside the tray. In order to achieve the sealing performance of the battery pack, a bottom plate is usually set at the bottom of the tray, and the batteries are located inside the battery installation space surrounded by the tray and the bottom plate. Because the battery pack needs to meet multiple working conditions such as vibration, stone impact, high and low temperature, and wading, and the battery pack seal must not fail under various working conditions, the sealing requirements between the bottom plate and the tray are extremely high. Therefore, how to better achieve the sealing between the two has become a technical problem that needs to be solved urgently. Utility Model Content

[0003] 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.

[0004] In order to achieve the above objectives, the present disclosure provides a battery tray in a first aspect, comprising:

[0005] Ring frame;

[0006] A support portion, disposed at the bottom of the annular frame, the support portion being formed with a first glue groove for arranging a first colloid and a second glue groove for arranging a second colloid; and

[0007] The bottom plate is sealed and connected to the supporting part through the first colloid arranged in the first glue groove and the second colloid arranged in the second glue groove.

[0008] Optionally, the first glue groove is located inside the second glue groove.

[0009] Optionally, the first colloid is structured as structural adhesive; and the second colloid is structured as sealant.

[0010] Optionally, a glue overflow port is formed on the inner side of the first glue groove.

[0011] 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.

[0012] 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

[0013] The depth of the first glue groove and the second glue groove is greater than or equal to 1 mm.

[0014] Optionally, the base plate is configured as a PCM plate.

[0015] Optionally, a reinforcing rib structure is formed or provided on the side wall of the annular frame.

[0016] Optionally, the reinforcing rib structure comprises a first reinforcing rib provided on the inner side wall of the annular frame; and / or

[0017] The reinforcing rib structure includes a second reinforcing rib arranged on the outer side wall of the annular frame.

[0018] Optionally, the first reinforcing rib is configured as a first rib 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;

[0019] 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.

[0020] Optionally, a cross-sectional area of ​​the first rib gradually decreases in a direction toward the bottom plate.

[0021] Optionally, the battery tray further includes a lifting lug disposed on an outer side wall of the annular frame.

[0022] Optionally, the lifting ear includes a lifting ear body and a lifting ear reinforcement rib arranged on the lifting ear body.

[0023] Optionally, the support portion includes an annular support sub-portion connected to the inner side wall of the annular frame and a first support sub-portion disposed inside the annular support sub-portion and connecting at least two opposite sides of the annular support sub-portion;

[0024] The first glue groove is provided on the annular supporting sub-portion and the first supporting sub-portion;

[0025] The second glue groove is arranged on the annular supporting sub-portion.

[0026] Optionally, the tray is integrally die-cast.

[0027] According to a second aspect of the present disclosure, a battery pack is provided, wherein the battery pack includes the battery tray provided in the first aspect of the present disclosure.

[0028] According to a third aspect of the present disclosure, there is also provided an electrical device, wherein the electrical device comprises the battery pack provided in the second aspect of the present disclosure.

[0029] Through the above technical solution, the battery tray disclosed in the present invention includes an annular frame, a support portion formed with a first glue groove and a second glue groove, and a bottom plate, wherein the first glue groove is used to set a first colloid, and the second glue groove is used to set a second colloid, and the bottom plate can be sealed and connected to the support portion through the first colloid set in the first glue groove and the second colloid set in the second glue groove, so as to improve the sealing level between the bottom plate and the support portion and meet various use conditions of the battery pack.

[0030] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0032] Figure 1 is a structural diagram of a battery tray provided in some embodiments of the present disclosure.

[0033] Figure 2 is a disassembly diagram of a battery tray provided in some embodiments of the present disclosure.

[0034] Figure 3 is a structural diagram of the annular frame of the battery tray provided in some embodiments of the present disclosure.

[0035] Figure 4 is based on Figure 3 Enlarged view of part A in .

[0036] Figure 5 This is a structural diagram of the annular frame of the battery tray provided in some embodiments of the present disclosure from another perspective.

[0037] Figure 6 is based on Figure 5 Enlarged view of part B in .

[0038] Description of Reference Numerals

[0039] 100-battery tray; 110-annular frame; 111-side frame; 120-support part; 1201-annular support sub-part; 1202-first support sub-part; 1203-support reinforcement rib; 121-first glue groove; 121a-glue overflow port; 122-second glue groove; 130-first reinforcement rib; 131-first rib; 140-second reinforcement rib; 141-second rib; 150-lifting ear; 151-lifting ear body; 152-lifting ear reinforcement rib;

[0040] 200-base plate; 300-first colloid; 400-second colloid. DETAILED DESCRIPTION

[0041] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0042] In the present disclosure, unless otherwise specified, the directional words used, such as "inside" and "outside", refer to the inside and outside of the outline of the corresponding component; "far" and "near" refer to the corresponding structure or the corresponding component being far away from or close to another structure or component. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and 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 construed as limitations on the present disclosure.

[0043] In the related art, the battery tray includes an aluminum alloy battery tray, which includes a bottom plate and a frame. The frame is wrapped around the outer edge of the bottom plate and is welded to the bottom plate. The lower surface of the frame and the lower surface of the bottom plate are in the same plane. The battery tray has the following problems:

[0044] 1. The pallet is a welded structure with high processing efficiency and low cost.

[0045] 2. The mechanical properties of the welding part decrease.

[0046] 3. The welding parts are prone to air leakage, and the welding scars need to be glued.

[0047] 4. The bottom of the tray is prone to arcing.

[0048] 5. The structure is not the lightest solution.

[0049] Based on this, the present disclosure provides a battery tray, a battery pack and an electrical device to at least partially solve the above-mentioned technical problems.

[0050] In order to achieve the above purpose, Figures 1 to 6 As shown, 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 colloid 300, and the second glue groove 122 is used to set the second colloid 400; the bottom plate 200 is sealed and connected to the support portion 120 through the first colloid 300 and the second colloid 400 respectively.

[0051] Through the above technical solution, the battery tray 100 disclosed in the present invention includes an annular frame 110, a support portion 120 formed with a first glue groove 121 and a second glue groove 122, and a bottom plate 200. The first glue groove 121 is used to set the first colloid 300, and the second glue groove 122 is used to set the second colloid 400. The bottom plate 200 can be sealed and connected to the support portion 120 through the first colloid 300 set in the first glue groove 121 and the second colloid 400 set in the second glue groove 122. It is used to improve the sealing level between the bottom plate 200 and the support portion 120 to meet various use conditions of the battery pack.

[0052] 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, wherein the first adhesive groove 121 is located inside the second adhesive groove 122. The structural adhesive realizes a high bonding strength connection between the bottom plate 200 and the support portion 120, and the sealant realizes a sealed connection between the bottom plate 200 and the support portion 120, thereby improving the sealing level between the bottom plate 200 and the support portion 120.

[0053] In the battery tray disclosed in the present invention, a structural adhesive is provided in the first adhesive groove 121, a sealing adhesive is provided in the second adhesive groove 122, and the bottom plate 200 is sealed and connected to the support portion 120 by the structural adhesive provided in the first adhesive groove 121 and the sealing adhesive provided in the second adhesive groove 122. The structural adhesive realizes a high bonding strength connection between the bottom plate 200 and the support portion 120, and the sealing adhesive realizes a sealed connection between the bottom plate 200 and the support portion 120, thereby improving the sealing level between the bottom plate 200 and the support portion 120, and meeting various use conditions of the battery pack.

[0054] The annular frame 110 and the support part 120 may be constructed in any suitable structure, wherein the support part 120 may be an annular structure, and its side edge is connected to the bottom of the inner wall of the annular frame 110, and 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 part 120 are integrally formed by high-strength aluminum alloy high-vacuum high-pressure die-casting, and there is no welding point between the annular frame 110 and the support part 120, and the internal structure is dense and the sealing is high.

[0055] 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 is a phase change material, which is 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 usually used to manufacture panels of household appliances such as refrigerators, washing machines, and water heaters. It combines the characteristics 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.

[0056] The battery tray 100 may include a thin-walled integral die-cast annular frame 110 and a support portion 120, and a PCM bottom plate 200. The support portion 120 is connected to the bottom plate 200 by structural adhesive, and the sealant is used all around to ensure sealing. The structure that bears the battery pack adopts a thin-walled annular frame 110 die-cast aluminum alloy structure, with a thin overall wall thickness, and reinforced ribs are used to increase the strength of the bearing part. The die-cast aluminum alloy can be a heat-free, high-strength, high-toughness, and high-corrosion-resistant aluminum alloy; the bottom is not an important load, and a PCM board is used to reduce weight and insulate 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.

[0057] In order to ensure that the adhesive surface in the first adhesive groove 121 has no pores and no adhesive breakage after the adhesive is cured, Figure 3 and Figure 4 As shown, in some embodiments, a glue overflow port 121 a is formed inside the first glue groove 121 .

[0058] The upper supporting surface of the supporting portion 120 is provided with two circles of glue grooves, including a first glue groove 121 and a second glue groove 122; the first glue groove 121 is used to connect the base plate 200 (for example, a high-strength glass fiber composite base plate 200) with the supporting portion 120 by means of a structural glue with high bonding strength, and overflow glue ports 121a are evenly arranged around the inner side of the first glue groove 121 to ensure that there are no air holes or glue breaks on the bonding surface after the glue is cured, thereby ensuring the bonding strength of the base plate 200; the second glue groove 122 is used to apply high-performance sealant to ensure the seal between the base plate 200 and the supporting portion 120.

[0059] In some other embodiments, 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. In particular, along the extension direction of the first glue groove 121, the intervals between two adjacent glue overflow openings 121a can be the same or different, and both can enable the excess structural adhesive inside the first glue groove 121 to be discharged from the glue overflow openings 121a, thereby improving the bonding effect between the bottom plate 200 and the support portion 120 at the position of the first glue groove 121.

[0060] Optionally, 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 depths of the first glue groove 121 and the second glue groove 122 are greater than or equal to 1 mm.

[0061] 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 its width is greater than 24 mm, so that the bottom plate 200 (such as a PCM board) is firmly connected to the bottom of the box frame. The inner side of the first glue groove 121 is evenly provided with glue overflow ports 121a to solve the problem of air discharge in the glue groove and excess structural glue overflowing from the glue groove during glue pressing, so as to ensure that the PCM board is transferred to the required position and the gluing area is ensured; the second glue groove 122 is filled with sealant, and its width can be greater than 5 mm, so that the boundary between the PCM board and the support part 120 is reliably sealed, and the sealing requirements are met under vibration, ball hitting and other working conditions to ensure the functional safety of the battery system.

[0062] In order to achieve the lightness of the battery tray 100, in some embodiments, the side wall of the annular frame 110 is formed with a reinforcing rib structure, for example, it can be integrally formed. Among them, the annular frame 110 can adopt a thin-walled structure to reduce the weight of the battery tray 100. In addition, in order to meet its strength requirements, a reinforcing rib structure can also be set on the side wall of the annular frame 110, including by welding or other connection methods to improve its strength and meet the use requirements of the battery pack.

[0063] The reinforcing rib structure 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 reinforcing rib structure includes a first reinforcing rib 130 arranged on the inner wall of the annular frame 110. The first reinforcing rib 130 can be constructed in any suitable structure, for example, a strip reinforcing rib or a mesh reinforcing rib or a combination of the two. Through the cooperation between the first reinforcing rib 130 and the annular frame 110, the strength of the battery tray 100 can be guaranteed while reducing the overall weight.

[0064] In other embodiments, the reinforcing rib structure includes a second reinforcing rib 140 disposed on the outer side wall of the annular frame 110. The second reinforcing rib 140 may also be constructed using any suitable structure, such as a strip reinforcing rib or a mesh reinforcing rib or a combination of the two. By cooperating with the second reinforcing rib 140 and the annular frame 110, the strength of the battery tray 100 can also be ensured while reducing the overall weight.

[0065] In some other embodiments, the reinforcing rib structure includes a first reinforcing rib 130 provided on the inner side wall of the annular frame 110, and a second reinforcing rib 140 provided on the outer side wall of the annular frame 110. This solution further improves the structural strength of the annular frame 110 and improves the performance of the battery pack by simultaneously providing reinforcing ribs on the inner side wall and the outer side wall of the annular frame 110.

[0066] The first reinforcing rib 130 and the second reinforcing rib 140 may be constructed in any suitable structure, such as Figure 3 As shown, in some embodiments of the present disclosure, the first reinforcing rib 130 is constructed as a first rib 131 that 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 that 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.

[0067] The first reinforcing rib 130 is disposed on the inner side wall of the annular frame 110 and extends in 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 to each other.

[0068] In addition, the second reinforcing rib 140 can be configured as a second rib 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 rib 140 cooperates with the first reinforcing rib 130 to improve the overall strength of the battery tray 100.

[0069] The first reinforcing rib 130 and the second reinforcing rib 140 may both be strip-shaped ribs. Since the two extend in different directions, vertical and horizontal or mesh supports are formed to improve the structural strength of the battery tray 100 .

[0070] In some embodiments, the cross-sectional area of ​​the first rib 131 gradually decreases along the direction toward the bottom plate 200. The first rib 131 can be constructed as a structure with gradually increasing height, which improves the strength and facilitates the demoulding of the mold. In addition, it can also achieve the guiding function during battery installation to a certain extent. At the same time, as the depth increases, the height gradually increases, making the strength of the bottom more prominent. Of course, the height and width of the first rib 131 in the extension direction can also be the same, which can also meet the effect of improving strength.

[0071] The wall thickness of the four side frames 111 of the one-piece annular frame 110 can be 3 mm. The outer horizontal reinforcing ribs make the box structure flat, which is convenient for the assembly of the outer insulation material; the inner vertical reinforcing ribs facilitate mold demolding; the inner and outer reinforcing ribs design improves the strength of the die-cast aluminum box frame.

[0072] In order to facilitate the 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 .

[0073] In order to further reduce the weight, the lifting ear 150 includes a lifting ear body 151 and a lifting ear reinforcement rib 152 provided on the lifting ear body 151. By constructing the lifting ear 150 into a structural form of the lifting ear body 151 and the lifting ear reinforcement rib 152, the weight of the lifting ear 150 can be reduced while ensuring the strength, further realizing the lightweight requirement of the battery tray 100.

[0074] like Figure 5 and Figure 6 As shown, the wall thickness of the lifting ear body 151 can be 3 mm, the reinforcement rib can be a star-shaped reinforcement rib, and the battery pack is installed on the vehicle through the lifting ear 150. The six lifting ears 150 bear the weight of the battery pack. The force is evenly applied when bearing, and there is no stress concentration area. The wall thickness of the lifting ear 150 is uniform and the load-bearing performance is high.

[0075] 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 wall of the annular frame 110 and a first support sub-portion 1202 arranged inside 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 arranged in the annular support sub-portion 1201 and the first support sub-portion 1202; and a second glue groove 122 is arranged in the annular support sub-portion 1201. Among them, the annular support sub-section 1201 is connected to the inner wall of the annular frame 110, and a glue groove 1 and a second glue groove 122 are formed thereon. In addition, in order to further improve the overall support strength, the support part 120 also includes at least one first support sub-section 1202 connecting the opposite sides of the annular support sub-section 1201, and a glue groove 2 is formed on the first support sub-section 1202, which is connected to the glue groove 1 of the annular support sub-section 1201, wherein the glue groove 1 and the glue groove 2 together form a first glue groove 121 for filling structural glue. The first support sub-section 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-section 1202, a support reinforcement rib 1203 can be formed on the first support sub-section 1202, such as a mesh reinforcement rib to increase its structural strength.

[0076] 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.

[0077] The embodiment of the present disclosure also provides an electric device, which includes the battery pack of the above embodiment, so the electric device also has all the advantages of the above battery pack. The electric device includes a vehicle or other charging / discharging equipment for power supply.

[0078] The battery tray 100, battery pack and electrical equipment disclosed in the present invention have the following advantages:

[0079] 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 is formed by integral die-casting of heat-free aluminum alloy with a frame structure, and the wall thickness of the box is designed to be 3 mm. 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 requirements of the vehicle for lightweight and high-strength battery tray 100. The battery tray 100 is highly lightweight.

[0080] The battery tray 100 has a high insulation and voltage resistance level: the battery tray 100 needs to meet the requirements of carrying high-voltage battery modules and charging and discharging insulation and voltage resistance; based on this requirement, the bottom of the battery tray 100 uses a high-strength PCM bottom plate 200. After the battery core module is installed in the box, the bottom surface cooperates with the PCM, and the battery insulation and voltage resistance performance is high, which solves the problem of high assembly size requirements between the module and the battery tray 100 in the prior art, the need to add insulation coating, and the battery pack is prone to arcing. This patent integrates the bottom sealing, bearing and insulation design, and the battery tray 100 has a high insulation and voltage resistance level and low cost.

[0081] 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 formed in one piece by 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 (support part 120) of the battery tray 100 is provided with two circles. Glue grooves (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 bottom plate 200 and the support surface of the die-cast battery tray 100 with high bonding strength structural glue. Glue overflow ports 121a are evenly arranged around the glue groove to ensure that there are no air holes and no broken glue on the bonding surface after the glue is cured, thereby ensuring the bonding strength of the bottom 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 bottom plate 200 and the die-casting of the box frame.

[0082] 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 in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0083] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0084] In addition, 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, characterized in that: include: Ring frame; A support portion, disposed at the bottom of the annular frame, the support portion being formed with a first glue groove for arranging a first colloid and a second glue groove for arranging a second colloid; as well as The bottom plate is sealed and connected to the supporting part through the first colloid arranged in the first glue groove and the second colloid arranged in the second glue groove.

2. The battery tray according to claim 1, characterized in that: The first glue groove is located inside the second glue groove.

3. The battery tray according to claim 1, characterized in that: The first colloid is structured as structural adhesive; the second colloid is structured as sealant.

4. The battery tray according to claim 2, characterized in that: A glue overflow port is formed inside the first glue groove.

5. The battery tray according to claim 4, characterized in that: 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.

6. The battery tray according to claim 1, characterized in that: 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 The depth of the first glue groove and the second glue groove is greater than or equal to 1 mm.

7. The battery tray according to claim 1, characterized in that: The bottom plate is configured 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 is formed or provided with a reinforcing rib structure.

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

10. The battery tray according to claim 9, characterized in that: 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; 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.

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

12. The battery tray according to claim 1, characterized in that: The battery tray further includes a hanging ear arranged on an outer side wall of the annular frame.

13. The battery tray according to claim 12, characterized in that: The lifting ear comprises a lifting ear body and a lifting ear reinforcement rib arranged on the lifting ear body.

14. The battery tray according to claim 1, characterized in that: The support portion includes an annular support sub-portion connected to the inner side wall of the annular frame and a first support sub-portion disposed inside the annular support sub-portion and connecting at least two opposite sides of the annular support sub-portion; The first glue groove is provided on the annular supporting sub-portion and the first supporting sub-portion; The second glue groove is arranged on the annular supporting sub-portion.

15. The battery tray according to claim 1, characterized in that: The tray is integrally die-cast.

16. A battery pack, characterized in that: The battery pack comprises the battery tray described in any one of claims 1-15.

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

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