Battery tray, battery pack, and electric device

Abstract

The application provides a battery tray, a battery pack and a power utilization device. The battery tray comprises a tray and a reinforcing assembly. The tray comprises a first bearing part, and an inner side of the first bearing part is provided with a bearing surface configured to bear a battery assembly. The reinforcing assembly is connected to an outer side of the tray, and the reinforcing assembly is provided with at least one first support structure corresponding to the first bearing part. A cross section of the first support structure is triangular. The battery tray has good structural performance.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a battery tray, battery pack, and electrical device. Background Technology

[0002] The battery pack mainly consists of a tray and the battery pack inside the tray. After the battery pack is installed in the vehicle, it needs to have sufficient strength and rigidity to cope with different working conditions such as vibration and side extrusion.

[0003] In related technologies, a pallet includes a pallet body and side beams. The pallet body is used to support the battery pack, and the side beams are welded to both sides of the pallet body. The mounting position for connecting the battery pack to the vehicle is located on the side beams. Due to the torque between the mounting position, the welding position between the side beams and the pallet body, the structural performance of the pallet is reduced, making it difficult for the pallet to meet various complex working conditions. Utility Model Content

[0004] Based on this, this application provides a battery tray, a battery pack, and an electrical device, wherein the battery tray has high strength and rigidity.

[0005] In a first aspect, this application provides a battery tray, comprising:

[0006] The tray includes a first support portion, the inner side of which has a support surface configured to support a battery assembly.

[0007] A reinforcing component is attached to the outside of the pallet. The reinforcing component has at least one first support structure, which is correspondingly arranged with the first load-bearing part. The cross-section of the first support structure is triangular.

[0008] In one possible implementation, the first support structure includes a first support portion and a second support portion, both of which are connected to the first load-bearing portion;

[0009] The first support portion is inclined in the opposite direction to the bearing surface, and the second support portion is inclined in the opposite direction to the bearing surface. The first support portion and the bearing surface have a first included angle, and the second support portion and the bearing surface have a second included angle.

[0010] In one possible implementation, the first included angle is greater than or equal to 40°, and the first included angle is less than or equal to 50°;

[0011] And / or, the second included angle is greater than or equal to 40°, and the second included angle is less than or equal to 50°.

[0012] In one possible implementation, the pallet further includes a first mounting portion connected to at least one side of the first bearing portion along a first direction;

[0013] The reinforcing component also includes a second support structure, which is correspondingly arranged with the first mounting part, and the cross-section of the second support structure is triangular.

[0014] The first direction is parallel to the bearing surface.

[0015] In one possible implementation, the second support structure includes a third support portion, one side of which is connected to the first mounting portion, and the side of the third support portion away from the first mounting portion is inclined toward the first support structure and connected to the first support structure, with a third included angle between the third support portion and the bearing surface.

[0016] In one possible implementation, the third included angle is greater than or equal to 25°, and the third included angle is less than or equal to 35°.

[0017] In one possible implementation, the reinforcing component includes a first reinforcing member and a second reinforcing member connected to each other. The second reinforcing member includes a second bearing portion, which is arranged parallel to the bearing surface. The first reinforcing member is sandwiched between the first bearing portion and the second bearing portion, and both the first bearing portion and the second bearing portion are connected to the first reinforcing member.

[0018] The first reinforcing member includes multiple bent portions that are continuously bent relative to the bearing surface. Two adjacent bent portions constitute a first support portion and a second support portion, respectively. The first support portion, the second support portion, and the second bearing portion are connected to each other to jointly form a first support structure.

[0019] In one possible implementation, the second reinforcing member further includes a second mounting part and a fourth support part, wherein the second bearing part and the second mounting part are staggered, and the fourth support part connects the second bearing part and the second mounting part.

[0020] The reinforcement assembly also includes a third reinforcement member, which includes a third mounting part, and the second mounting part is connected between the first mounting part and the third mounting part;

[0021] The third support part is located on the third reinforcement and is connected to the third mounting part. The second mounting part, the fourth support part and the third support part are connected to each other to form the second support structure.

[0022] The second direction is perpendicular to the bearing surface.

[0023] In one possible implementation, the fourth support portion has a fourth included angle with the bearing surface;

[0024] The fourth included angle is greater than 35° and less than or equal to 90°. Secondly, this application provides a battery pack, comprising:

[0025] Battery components;

[0026] The battery tray provided in the first aspect above houses the battery assembly.

[0027] Thirdly, this application provides an electrical device, including an electrical appliance and a battery pack provided in the second aspect above, wherein the battery pack supplies power to the electrical appliance.

[0028] The battery tray, battery pack, and electrical equipment provided in this application embodiment include a battery tray and a reinforcing component. The tray includes a first load-bearing portion and a load-bearing surface, and the reinforcing component includes a first support structure. By providing a first load-bearing portion and a load-bearing surface on the inner side of the first load-bearing portion for supporting the battery assembly, and by providing a reinforcing component to enhance the strength and rigidity of the tray, the battery tray composed of the tray and the reinforcing component has high strength and rigidity. Since the first support structure is correspondingly provided to the first load-bearing portion and the cross-section of the first support structure is triangular, the first support structure has high geometric stability. The first support structure mainly bears pressure rather than bending moment, which can efficiently distribute and bear load, thereby significantly improving the strength and rigidity of the first load-bearing portion, thus contributing to improving the strength and rigidity of the battery tray.

[0029] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems solved by the battery tray, battery pack, and electrical equipment provided by this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the battery pack structure provided in an embodiment of this application;

[0032] Figure 2 for Figure 1 Exploded view;

[0033] Figure 3 This is a schematic diagram of the structure of the battery tray provided in an embodiment of this application;

[0034] Figure 4 Another structural schematic diagram of the battery tray provided in the embodiments of this application;

[0035] Figure 5 for Figure 4 The main view;

[0036] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0037] Figure 7 for Figure 3 A magnified view of a section at point B in the middle.

[0038] Explanation of reference numerals in the attached figures:

[0039] 10-Battery tray;

[0040] 100 - Pallet; 110 - First load-bearing part; 120 - First mounting part;

[0041] 200 - Reinforcing component; 210 - First support structure; 211 - First support part; 212 - Second support part; 220 - Second support structure; 221 - Third support part; 200a - First reinforcing member; 210a - Bending part; 200b - Second reinforcing member; 210b - Second load-bearing part; 220b - Second mounting part; 230b - Fourth support part; 200c - Third reinforcing member; 210c - Third mounting part;

[0042] 300 - Top Cover;

[0043] 20 - Battery assembly. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0045] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] The terms "first," "second," and "third" (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein.

[0048] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.

[0049] In related technologies, battery packs mainly consist of a tray and a battery pack housed within the tray. Once installed in a vehicle, the battery pack requires sufficient strength and rigidity to withstand various operating conditions such as vibration and side-clamping. The tray comprises a tray body and side beams. The tray body supports the battery pack, while the side beams are welded to both sides of the tray body. The mounting points for connecting the battery pack to the vehicle are located on the side beams. Because of the torque present at the mounting points and the welded points between the side beams and the tray body, the structural performance of the tray is reduced, making it difficult for the tray to meet various complex operating conditions.

[0050] In view of the above problems, this application provides a battery tray, a battery pack, and an electrical device. The battery tray can effectively improve the strength and rigidity of the tray by setting a reinforcing component on the outside of the tray, and the reinforcing component has a truss-type first support structure, thereby enabling the battery tray to meet various complex working conditions.

[0051] The following detailed description, in conjunction with the accompanying drawings, illustrates the specific implementation of the battery tray, battery pack, and electrical device according to embodiments of this application.

[0052] Reference Figure 1 and Figure 2As shown, this application embodiment provides a battery pack, including a battery tray 10 and a battery assembly 20, with the battery assembly 20 housed within the battery tray 10. The battery assembly 20 is used to store and release electrical energy, and the battery tray 10 is used to support the battery assembly 20, thereby facilitating the overall installation of the battery pack into electrical equipment via the battery tray 10.

[0053] Reference Figures 3 to 6 As shown, based on the above embodiments, this application provides a battery tray 10, including a tray 100 and a reinforcing component 200. The tray 100 includes a first support portion 110, and the inner side of the first support portion 110 has a support surface, which is configured to support the battery assembly 20.

[0054] The reinforcing component 200 is connected to the outside of the tray 100. The reinforcing component 200 has at least one first support structure 210, which is correspondingly disposed with the first bearing part 110. The cross-section of the first support structure 210 is triangular.

[0055] In this embodiment, the tray 100 is provided with a first support portion 110 for supporting the battery assembly 20, wherein the inner side of the first support portion 110 is set as a horizontal support surface so that the battery assembly 20 can be stably installed in the battery tray 10.

[0056] The reinforcing component 200 is used to improve the strength and rigidity of the tray 100, so that the tray 100 and the reinforcing component 200 together form a battery tray 10 with high strength and rigidity, which helps the battery tray 10 to meet various working conditions.

[0057] It is understandable that, since the first support part 110 is mainly used to support the battery pack 20, and the first support part 110 mainly bears the weight of the battery pack 20, and the weight of the battery pack 20 is relatively large, when the battery pack faces vibration conditions, the first support part 110 needs to have high strength and rigidity in the vertical direction to prevent the first support part 110 from being damaged due to insufficient strength or deformed due to insufficient rigidity when the battery pack follows the vehicle vibration.

[0058] In this embodiment, the reinforcing component 200 has a first support structure 210 corresponding to the first load-bearing part 110. Since the cross-section of the first support structure 210 is triangular, the first support structure 210 forms a truss structure. The first support structure 210 has high geometric stability. Moreover, the first support structure 210 mainly bears pressure and does not bear bending moment. In this way, the load can be efficiently distributed and borne, thereby effectively enhancing the strength and stiffness of the first load-bearing part 110, thereby enhancing the battery tray 10's tolerance to vibration conditions.

[0059] The battery tray 10 provided in this embodiment includes a tray 100 and a reinforcing component 200. The tray 100 includes a first bearing portion 110, which includes a bearing surface. The reinforcing component 200 includes a first support structure 210. By providing the first bearing portion 110 and a bearing surface on the inner side of the first bearing portion 110 for bearing the battery assembly 20, and by providing the reinforcing component 200 for enhancing the strength and rigidity of the tray 100, the battery tray 10 composed of the tray 100 and the reinforcing component 200 has high strength and rigidity. Since the first support structure 210 is correspondingly provided to the first bearing portion 110 and the cross-section of the first support structure 210 is triangular, the first support structure 210 has high geometric stability. The first support structure 210 mainly bears pressure and not bending moment, which can efficiently distribute and bear load, thereby significantly enhancing the strength and rigidity of the first bearing portion 110, thus contributing to enhancing the strength and rigidity of the battery tray 10.

[0060] Reference Figure 2 As shown, in some embodiments, the battery tray 10 may also include a cover 300, which is connected to the tray 100 to jointly define a receiving cavity in which the battery assembly 20 is housed.

[0061] Reference Figures 4 to 6 As shown, in one possible implementation, the first support structure 210 includes a first support portion 211 and a second support portion 212, both of which are connected to the first bearing portion 110.

[0062] The first support portion 211 is inclined in the opposite direction to the bearing surface, and the second support portion 212 is inclined in the opposite direction to the bearing surface. The first support portion 211 has a first included angle with the bearing surface, and the second support portion 212 has a second included angle with the bearing surface.

[0063] It should be understood that, since the cross-section of the first support structure 210 is a triangular truss structure, the first support part 211 and the second support part 212 are equivalent to two members of the truss structure, and the connection part of the first support part 211 and the second support part 212 is equivalent to a node of the truss structure.

[0064] When the first support portion 211 and the second support portion 212 are both inclined relative to the bearing surface and their inclination directions are opposite, the first support portion 211 and the second support portion 212 can support the first bearing portion 110 from different directions, thereby transferring the load borne by the first bearing portion 110 to the first support portion 211 and the second support portion 212, which helps to reduce the load borne by the first bearing portion 110, thereby helping to improve the strength and rigidity of the battery tray 10.

[0065] Specifically, the first support 211 can provide a force to the first bearing 110, which can be decomposed into a vertical component and a horizontal component. The vertical component can resist the vibration deformation of the first bearing 110, and the horizontal component can resist the lateral extrusion deformation of the first bearing 110.

[0066] Similarly, the second support 212 can provide a force to the first bearing part 110. This force can be decomposed into a vertical component and a horizontal component. The vertical component can resist the vibration deformation of the first bearing part 110, and the horizontal component can resist the lateral extrusion deformation of the first bearing part 110.

[0067] Reference Figure 6 As shown, in some embodiments, the first included angle α is greater than or equal to 40°, and the first included angle α is less than or equal to 50°.

[0068] If the first included angle α is less than 40°, the vertical component of the force exerted by the first support portion 211 on the first load-bearing portion 110 is small, insufficient to effectively improve the strength and stiffness of the first load-bearing portion 110 in the vertical direction, and the fatigue limit of the first support structure 210 does not meet the requirements, resulting in low reliability of the first support structure 210. The fatigue limit stress of the first support structure 210 can be 60% of its static limit strength.

[0069] If the first included angle α is greater than 50°, although it can improve the strength and reliability of the battery tray 10, it will cause the design redundancy of the first support structure 210 to be too large, thereby increasing the cost of the battery tray 10.

[0070] Therefore, setting the first included angle α between 40° and 50° can improve the strength, rigidity and reliability of the battery tray 10 and reduce the cost of the battery tray 10.

[0071] Reference Figure 6 As shown, in some embodiments, the second included angle β is greater than or equal to 40°, and the second included angle β is less than or equal to 50°.

[0072] Similarly, since both the first support portion 211 and the second support portion 212 are used to support the first load-bearing portion 110, the first load-bearing portion 110 can better cope with vibration conditions. On the one hand, if the second included angle β is too small, for example, less than 40°, the fatigue limit of the first support structure 210 will not meet the requirements, resulting in lower reliability of the first support structure 210. On the other hand, if the second included angle β is too large, for example, greater than 50°, the design redundancy of the first support structure 210 will be increased, thereby increasing the cost of the battery tray 10.

[0073] In this embodiment, the second included angle β is between 40° and 50°, which can significantly improve the strength, rigidity and reliability of the battery tray 10, while reducing the processing cost of the battery tray 10.

[0074] Reference Figures 4 to 6 As shown, in one possible implementation, the pallet 100 further includes a first mounting portion 120, which is connected to at least one side of the first support portion 110 along a first direction. The reinforcing assembly 200 also includes a second support structure 220, which is correspondingly disposed to the first mounting portion 120, and the cross-section of the second support structure 220 is triangular.

[0075] The first direction is parallel to the bearing surface, that is, the first direction is horizontal, and the first direction can be referred to as the X direction in the attached figure.

[0076] It should be noted that when the battery pack is installed on electrical equipment such as a vehicle, the first mounting part 120 is the connection structure between the battery tray 10 and the vehicle.

[0077] Under extrusion conditions, the battery tray 10 will be subjected to extrusion force from the side, and the extrusion force mainly acts on the side of the battery tray 10, that is, the first mounting part 120. If the strength or rigidity of the first mounting part 120 is insufficient, the battery tray 10 is easily damaged or deformed when facing extrusion conditions.

[0078] In this embodiment, by providing a second support structure 220 below the first mounting part 120, the second support structure 220 can distribute the load borne by the first mounting part 120, thereby effectively enhancing the strength and rigidity of the first mounting part 120, and thus enhancing the battery tray 10's ability to withstand extrusion conditions.

[0079] Reference Figure 4 and Figure 6 As shown, in one possible implementation, the second support structure 220 includes a third support portion 221, one side of which is connected to the first mounting portion 120, and the side of the third support portion 221 away from the first mounting portion 120 is inclined toward the first support structure 210 and connected to the first support structure 210. The third support portion 221 has a third included angle with the bearing surface.

[0080] Thus, since the third support part 221 is inclined relative to the horizontal direction, the third support part 221 can provide a force to the first mounting part 120. This force can be decomposed into a vertical component and a horizontal component. The vertical component can resist the vibration deformation of the first mounting part 120, and the horizontal component can resist the lateral extrusion deformation of the first mounting part 120, thereby effectively improving the rigidity of the first mounting part 120, which is beneficial for the first mounting part 120 to cope with various working conditions.

[0081] Reference Figure 6 As shown, in one possible implementation, the third included angle γ is greater than or equal to 25° and the third included angle is less than or equal to 35°.

[0082] It should be noted that since the third support part 221 is mainly used to prevent lateral extrusion deformation, if the third included angle γ is greater than 35°, the horizontal component of the force exerted by the third support part 221 on the first mounting part 120 is small, which is not conducive to the third support part 221 resisting lateral extrusion force. If the third included angle γ is less than 25°, it is not conducive to the third support part 221 transmitting torque. That is, the first bearing part 110 bears the weight of the battery assembly 20, and there is a lever arm between the first bearing part 110 and the first mounting part 120, which causes the first bearing part 110 to generate torque. This torque needs to be transmitted to the second support structure 220 through the third support part 221 to prevent the first bearing part 110 from undergoing serious deformation.

[0083] In this embodiment, the third included angle γ is between 25° and 35°, which enables the third support part 221 to effectively enhance the horizontal strength and rigidity of the first mounting part 120, thereby better resisting the lateral extrusion force of the battery pack, and also enables the torque of the first bearing part 110 to be transmitted to the second support structure 220 through the third support part 221.

[0084] Reference Figure 3 , Figure 6 and Figure 7 As shown, in a specific implementation, the reinforcing component 200 includes a first reinforcing member 200a and a second reinforcing member 200b that are connected to each other. The second reinforcing member 200b includes a second bearing portion 210b, which is arranged parallel to the bearing surface. The first reinforcing member 200a is sandwiched between the first bearing portion 110 and the second bearing portion 210b. Both the first bearing portion 110 and the second bearing portion 210b are connected to the first reinforcing member 200a.

[0085] The first reinforcing member 200a includes a plurality of bent portions 210a that are continuously bent relative to the bearing surface. Two adjacent bent portions 210a respectively constitute a first support portion 211 and a second support portion 212. The first support portion 211, the second support portion 212 and the second bearing portion 210b are connected to each other to jointly constitute the first support structure 210.

[0086] The first reinforcing member 200a and the second reinforcing member 200b, as well as the first reinforcing member 200a and the first bearing portion 110, can be welded together to improve the connection strength between the reinforcing assembly 200 and the tray 100. Furthermore, the reinforcing assembly 200 is divided into the first reinforcing member 200a and the second reinforcing member 200b, which facilitates the use of stamping processes to manufacture the first reinforcing member 200a and the second reinforcing member 200b, and then welds the first reinforcing member 200a and the second reinforcing member 200b to the tray 100. This allows for the convenient use of mature manufacturing processes to form the first support structure 210.

[0087] It is understandable that, since the first support part 211 and the second support part 212 are formed by continuous bending of a flat plate, each bend can form a bending part 210a. When the first included angle α and the second included angle β are larger, there are more bending parts 210a, which will inevitably increase the processing cost of the first reinforcing member 200a.

[0088] Reference Figure 3 , Figure 6 and Figure 7 As shown, in one possible implementation, the second reinforcing member 200b further includes a second mounting portion 220b and a fourth support portion 230b. The second bearing portion 210b and the second mounting portion 220b are offset from each other along a second direction, and the fourth support portion 230b connects the second bearing portion 210b and the second mounting portion 220b.

[0089] The reinforcing assembly 200 also includes a third reinforcing member 200c, which includes a third mounting portion 210c and a second mounting portion 220b connected between the first mounting portion 120 and the third mounting portion 210c. A third support portion 221 is disposed on the third reinforcing member 200c, and both sides of the third support portion 221 are connected to the third mounting portion 210c and the fourth support portion 230b, respectively. The second mounting portion 220b, the fourth support portion 230b, and the third support portion 221 are interconnected to jointly form the second support structure 220.

[0090] The second direction is perpendicular to the bearing surface, that is, the second direction is vertical. The second direction can be referred to as the Y direction in the attached figure.

[0091] With this configuration, the overlapping arrangement of the first mounting part 120, the second mounting part 220b, and the third mounting part 210c enhances the strength and rigidity of the overlapping portion, thereby improving the strength and rigidity of the battery tray 10. Furthermore, the second reinforcing member 200b and the third reinforcing member 200c can be fabricated separately first, and then assembled onto the tray 100. The second support structure 220 is then defined by the second mounting part 220b, the fourth support part 230b, and the third support part 221, which facilitates the fabrication of the second support structure 220 using existing processes.

[0092] Reference Figure 6 As shown, in one possible implementation, the fourth support 230b has a fourth included angle Ɵ between it and the bearing surface. The fourth included angle Ɵ is greater than 35° and less than or equal to 90°.

[0093] It should be understood that if the fourth included angle Ɵ is less than or equal to 35°, the fourth support part 230b and the third support part 221 will interfere with each other. If the fourth included angle Ɵ is greater than 90°, it will be unfavorable for the torque of the first bearing part 110 to be transmitted to the second mounting part 220b through the fourth bearing part.

[0094] Therefore, the fourth included angle Ɵ is located between 35° and 90° to prevent the fourth support 230b from interfering with the third support 221, and to facilitate the transmission of torque by the fourth support 230b.

[0095] Based on the above embodiments, this application also provides an electrical device, including an electrical device and a battery pack provided in the above embodiments, wherein the battery pack supplies power to the electrical device.

[0096] The structure and working principle of the battery pack have been described in detail in the foregoing embodiments, and will not be repeated here.

[0097] For example, the electrical equipment can be a vehicle, the electrical device can be an electric motor, and the battery pack can provide electrical energy to the electric motor, thereby driving the vehicle. The vehicle can be a pure electric vehicle, a range-extended electric vehicle, a hybrid electric vehicle, etc., and can also be any vehicle with a battery pack; this embodiment does not limit this.

[0098] Alternatively, electrical equipment can also include ships, aircraft, electronic terminal equipment, electrical appliances, and energy storage equipment, which will not be described in detail here.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery tray, characterized in that, include: The tray (100) includes a first support portion (110) having a support surface on its inner side, the support surface being configured to support a battery assembly (20). A reinforcing component (200) is connected to the outside of the tray (100). The reinforcing component (200) has at least one first support structure (210). The first support structure (210) is correspondingly disposed with the first bearing part (110). The cross section of the first support structure (210) is triangular.

2. The battery tray according to claim 1, characterized in that, The first support structure (210) includes a first support part (211) and a second support part (212), both of which are connected to the first bearing part (110); The first support (211) is inclined in the opposite direction to the bearing surface, and the second support (212) is inclined in the opposite direction to the bearing surface. The first support (211) has a first angle with the bearing surface, and the second support (212) has a second angle with the bearing surface.

3. The battery tray according to claim 2, characterized in that, The first included angle is greater than or equal to 40°, and the first included angle is less than or equal to 50°; And / or, the second included angle is greater than or equal to 40°, or the second included angle is less than or equal to 50°.

4. The battery tray according to claim 2, characterized in that, The pallet (100) further includes a first mounting portion (120), which is connected to at least one side of the first support portion (110) along a first direction; The reinforcing component (200) further includes a second support structure (220), which is correspondingly provided with the first mounting part (120), and the cross-section of the second support structure (220) is triangular; Wherein, the first direction is parallel to the bearing surface.

5. The battery tray according to claim 4, characterized in that, The second support structure (220) includes a third support part (221), one side of which is connected to the first mounting part (120), and the side of the third support part (221) away from the first mounting part (120) is inclined toward the first support structure (210) and connected to the first support structure (210). The third support part (221) has a third included angle with the bearing surface.

6. The battery tray according to claim 5, characterized in that, The third included angle is greater than or equal to 25°, and the third included angle is less than or equal to 35°.

7. The battery tray according to claim 5, characterized in that, The reinforcing component (200) includes a first reinforcing member (200a) and a second reinforcing member (200b) connected to each other. The second reinforcing member (200b) includes a second bearing portion (210b) which is arranged parallel to the bearing surface. The first reinforcing member (200a) is sandwiched between the first bearing portion (110) and the second bearing portion (210b). Both the first bearing portion (110) and the second bearing portion (210b) are connected to the first reinforcing member (200a). The first reinforcing member (200a) includes a plurality of bent portions (210a) that are continuously bent relative to the bearing surface. Two adjacent bent portions (210a) respectively constitute the first support portion (211) and the second support portion (212). The first support portion (211), the second support portion (212) and the second bearing portion (210b) are connected to each other to jointly constitute the first support structure (210).

8. The battery tray according to claim 7, characterized in that, The second reinforcing member (200b) further includes a second mounting part (220b) and a fourth support part (230b). The second bearing part (210b) and the second mounting part (220b) are offset along a second direction, and the fourth support part (230b) connects the second bearing part (210b) and the second mounting part (220b). The reinforcing component (200) further includes a third reinforcing member (200c), the third reinforcing member (200c) including a third mounting part (210c), and the second mounting part (220b) being connected between the first mounting part (120) and the third mounting part (210c); The third support part (221) is disposed on the third reinforcing member (200c) and connected to the third mounting part (210c). The second mounting part (220b), the fourth support part (230b) and the third support part (221) are interconnected to jointly form the second support structure (220). The second direction is perpendicular to the bearing surface.

9. The battery tray according to claim 8, characterized in that, The fourth support (230b) has a fourth included angle with the bearing surface; The fourth included angle is greater than 35° and the fourth included angle is less than or equal to 90°.

10. A battery pack, characterized in that, include: Battery assembly (20); The battery tray (10) as described in any one of claims 1-9, wherein the battery assembly (20) is housed within the battery tray.

11. An electrical appliance, characterized in that, It includes an electrical device and a battery pack as described in claim 10, wherein the battery pack supplies power to the electrical device.

Images