Tray, battery pack, power utilization device and vehicle

Abstract

The utility model discloses a tray, a battery pack, an electric device and a vehicle. Wherein the tray comprises a bearing piece and a first beam body; the bearing piece comprises a bearing part, and a first groove is formed in the bearing part; the first beam body comprises an abutting part and a sealing cover part, the abutting part abuts against the inner wall of the first groove, the abutting part is provided with a second groove at least partially located in the first groove, the sealing cover part seals and covers the second groove, and the abutting part and the sealing cover part are integrally arranged. Due to the fact that the abutting part and the sealing cover part are of the integrated structure, along with the increase of the length of the first beam body, the abutting part and the sealing cover part can keep good sealing performance all the time, and the possibility of accidents caused by poor sealing is reduced.

Description

Technical Field

[0001] The present application relates to the field of new energy, and specifically to a pallet, a battery pack, an electrical device and a vehicle. Background Art

[0002] A battery pack is a device that is composed of multiple battery cells and is used to store and release electrical energy. It is widely used in electric vehicles, mobile devices, renewable energy storage, etc. For a battery pack, sealing is an important factor related to its safety.

[0003] In the prior art, the connection of structural parts in a battery pack is mostly done by welding. However, in certain structures, this connection method may affect the sealing performance of the battery pack. Utility Model Content

[0004] In view of the above problems, the present application provides a tray, a battery pack, an electrical device and a vehicle, which can improve the sealing performance of the battery pack.

[0005] In the first aspect, the present application provides a tray, comprising: a supporting member and a first beam body; the supporting member comprises a supporting portion, on which a first groove is formed; the first beam body comprises a supporting portion and a covering portion, the supporting portion abuts against an inner wall of the first groove, and the supporting portion has a second groove at least partially located in the first groove, the covering portion covers the second groove, and the supporting portion and the covering portion are integrally arranged.

[0006] In the technical solution of this embodiment, the supporting part is used to support some structural parts, such as battery cells. The first groove is opened on the supporting part. On the one hand, it can facilitate the routing of various structural parts on the supporting part. On the other hand, it can also play the effect of strengthening the structural strength of the tray, especially the bending resistance of the tray in the length direction of the first groove. The first beam body is embedded in the first groove, and the supporting part resists the inner wall of the first groove to form a second groove for routing. When the tray is suspended or subjected to external force, the supporting parts on both sides of the first groove exert a force on the structural wall of the first groove. At this time, the supporting part that resists the inner wall of the first groove can accept the force, thereby reducing the deformation degree of the supporting part. The cover part closes the second groove in the supporting part, which not only can achieve the sealing of the second groove, but also can connect the two ends of the supporting part to improve the strength of the supporting part.

[0007] Since the abutting portion and the sealing portion are an integrated structure, as the length of the first beam increases, the abutting portion and the sealing portion can always maintain good sealing performance, thereby reducing the possibility of accidents caused by poor sealing.

[0008] In some embodiments, the cover portion includes a cover segment that covers the second groove, and the cover segment is integrally provided with the abutting portion. The technical solution of this embodiment is adopted, and the connection structure between the cover segment and the abutting portion is designed so that it can be manufactured by extrusion, and the production cost is relatively low. The wall thickness of the first beam body manufactured by this process is relatively uniform, and a good sealing effect can be achieved.

[0009] In some embodiments, the cover portion further includes a first extension section, which is located on one side of the cover portion and is used to abut the support portion. With the technical solution of this embodiment, the first extension section is connected to the support portion through the first extension section. On the one hand, the first extension section can be used as a limit structure to remind the staff that the first beam body has been installed to a suitable position in the first groove; on the other hand, the first extension section can increase the contact area between the first beam body and the support portion, thereby improving the stability and firmness of the connection between the first beam body and the support portion.

[0010] In some embodiments, the cover portion further comprises a second extension section, which is located on a side of the cover portion away from the first extension section and is used to abut against the support portion. By adopting the technical solution of this embodiment, by respectively arranging the first extension section and the second extension section on both sides of the cover portion, the contact area between the first beam body and the support portion can be further increased, thereby improving the stability and firmness of the connection between the two.

[0011] In some embodiments, the cover portion includes a cover segment that covers the second groove and a first extension segment located on one side of the cover segment, the abutting portion includes a first connecting segment for abutting the supporting portion, and the first extension segment abuts against the first connecting segment. By adopting the technical solution of this embodiment, by designing the connection structure between the abutting portion and the cover portion, the first beam body can be manufactured by sheet metal processing, the manufacturing cost is relatively low, and it also has good sealing performance.

[0012] In some embodiments, one end of the first extension section away from the cover section is connected to one end of the first connection section away from the second groove. With the technical solution of this embodiment, the first connection section abuts against the supporting portion, and then the first connection section is bent to form the cover portion, so that the second groove is sealed, the contact area between the first beam body and the supporting portion is increased, and the stability of the structure is improved.

[0013] In some embodiments, the abutting portion further comprises a buckling section, the buckling section is located at an end of the first connecting section away from the second groove, and the buckling section abuts against an end of the first connecting section away from the supporting member. By adopting the technical solution of this embodiment, the design of connecting the cover portion with the barbed buckling section can close the first beam body and reduce the possibility of leakage at the gap between the first connecting section and the first extension section.

[0014] In some embodiments, the cover portion further includes a second extension section, the second extension section is located on a side of the cover portion away from the first extension section, the abutting portion includes a second connecting section for abutting the supporting portion, and the second extension section abuts against the second connecting section. By adopting the technical solution of this embodiment, the contact area between the first beam and the supporting portion can be increased by designing the second connecting section and the second extension section, thereby improving the stability of the structure.

[0015] In some embodiments, the abutting portion further comprises a first abutting section, a second abutting section and a third abutting section which are sequentially connected to form the second groove, the first abutting section and the third abutting section are respectively connected to the cover portion, and at least one of the first abutting section, the second abutting section and the third abutting section abuts against the inner wall of the first groove. With the technical solution of this embodiment, the second groove formed by the first abutting section, the second abutting section and the third abutting section can provide sufficient space while also providing a better supporting effect on the first groove.

[0016] In some embodiments, the tray further comprises a first adhesive member, which is disposed in the first groove and connects the supporting member and the first beam body. In this embodiment, the first adhesive member is used to connect the supporting member and the first beam body, and there is no need to provide a connecting structure on the supporting member or the first beam body, which relatively simplifies the structure of the supporting member and the first beam body and reduces the manufacturing cost.

[0017] In some embodiments, the supporting portion has a first surface and a second surface, the first groove is formed on the first surface, and a boss is formed on the second surface. In this embodiment, the supporting portion and the boss may have the same thickness. In this way, the supporting member may be made by sheet metal processing, and the production cost is relatively low.

[0018] In some embodiments, the tray further comprises a second beam body, the second beam body is provided with a third groove, and the third groove is covered on the boss. By adopting the technical solution of this embodiment, by arranging the second beam body at the boss and arranging the first beam body at the first groove, the structural strength of the boss or the first groove can be strengthened, thereby improving the service life of the tray.

[0019] In some embodiments, the tray further includes a second adhesive member, which is disposed in the third groove and connects the supporting member and the second beam body. In this embodiment, the second adhesive member is used to connect the supporting member and the second beam body, and there is no need to provide a connecting structure on the supporting member or the second beam body, which relatively simplifies the structure of the supporting member and the second beam body and reduces the cost of production.

[0020] In some embodiments, the supporting member further comprises an enclosure, the enclosure is arranged around the supporting member, and the first groove is connected to the enclosure. With the technical solution of this embodiment, the first groove not only has its own routing function, but also can serve as a reinforcing rib in combination with the enclosure, thereby improving the structural stability of the tray.

[0021] In a second aspect, the present application provides a battery pack comprising the tray described in any of the above embodiments.

[0022] In a third aspect, an electrical device includes the battery pack described in the above embodiment.

[0023] In a fourth aspect, a vehicle comprises the battery pack described in the above embodiment.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structure of a tray according to some embodiments of the present application.

[0027] Figure 2 for Figure 1 Schematic diagram of the structure of the middle tray from another perspective.

[0028] Figure 3 for Figure 1 Schematic diagram of the structure of the AA phase.

[0029] Figure 4 for Figure 3 Enlarged schematic diagram of T in the middle.

[0030] Figure 5 for Figure 4 Exploded diagram.

[0031] Figure 6 for Figure 5 Schematic diagram of the structure of the first beam.

[0032] Figure 7 This is a cross-sectional view of the first beam body of some embodiments of the present application.

[0033] Figure 8 for Figure 7 Schematic diagram of the structure of the first beam.

[0034] The reference numerals in the specific implementation manner are as follows:

[0035] 100-pallet;

[0036] 110 - supporting member, 112 - supporting portion, 112a - first groove, 1122 - boss, 114 - enclosing portion;

[0037] 120-first beam body, 122-holding portion, 122a-second groove, 1221-first connecting section, 1222-second connecting section, 1223-fastening section, 1224-first holding section, 1225-second holding section, 1226-third holding section, 124-covering portion, 1242-covering section, 1244-first extending section, 1246-second extending section;

[0038] 130 - second beam, 130a - third groove, 130b - cavity. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] At present, judging from the development of the market situation, the application of battery packs is becoming more and more extensive. Battery packs are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of battery packs, the market demand is also constantly expanding.

[0048] The battery pack is a collection of multiple battery cells. In order to hide the wires connecting the batteries, the tray used to support the batteries is provided with an inwardly recessed wiring groove for wiring. For ease of design, the wiring groove is usually set in the middle of the tray, and both sides of the wiring groove are used to place batteries.

[0049] With the demand for battery pack power and thickness, the length of the battery pack is gradually increasing. Correspondingly, the rigidity of the tray is gradually decreasing, and it is easier to bend in the length direction. When the battery pack is subjected to the squeezing force in the length direction, stress concentration will occur at the wiring groove, especially at the connection between the end face with the wiring groove and the wiring groove, which may cause the tray to break.

[0050] In order to alleviate the problem of stress concentration in the wire trough, we can consider how to improve the structural strength of the wire trough. In fact, there are many ways to improve the structural strength of the wire trough, such as changing the structural shape of the wire trough, or setting reinforcing ribs in the wire trough, or setting an independent support structure to support the inner wall of the wire trough, and so on. As for which design scheme to consider, other factors also need to be considered, such as processing costs. At present, the tray is formed by bending through sheet metal technology, so the technical solution of setting an independent support structure is a relatively low-cost option. But no matter which technical solution is used, the sealing of the wire trough needs to be considered.

[0051] Therefore, how to set up an independent support structure that can improve the strength of the wiring trough and has good sealing performance is one of the important issues at present. According to research, if welding is used to achieve the sealing of the support structure, due to the large sealing span, it is easy to cause poor sealing, and the same is true for the adhesive sealing method.

[0052] Based on the above considerations, a pallet is designed, in which an independent first beam body is provided on the pallet, and the first beam body is an integrally formed design. With this design, the first beam body can support the first groove to a certain extent, improve the structural strength of the first groove, and due to the structural characteristics of the integrally formed first beam body, there is no need to consider the sealing of the first beam body.

[0053] The tray disclosed in the embodiment of the present application can be used, but not limited to, in power-consuming devices such as battery packs, vehicles, ships or aircraft. A power supply system of the power-consuming device can be composed of the tray disclosed in the present application, batteries, etc., which is conducive to improving the strength of the tray and alleviating the negative impact caused by the sealing problem.

[0054] The embodiment of the present application provides an electric device using a battery pack as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0055] According to some embodiments of the present application, referring to Figures 1 to 8The present application provides a tray 100, including a supporting member 110 and a first beam body 120; the supporting member 110 includes a supporting portion 112, and a first groove 112a is formed on the supporting portion 112; the first beam body 120 includes a supporting portion 122 and a covering portion 124, the supporting portion 122 abuts against the inner wall of the first groove 112a, and the supporting portion 122 has a second groove 122a at least partially located in the first groove 112a, the covering portion 124 covers the second groove 122a, and the supporting portion 122 and the covering portion 124 are integrally arranged.

[0056] In the technical solution of this embodiment, the supporting portion 112 is used to support some structural parts, such as battery cells. The first groove 112a is opened on the supporting portion 112. On the one hand, it can facilitate the routing of various structural parts on the supporting portion 112. On the other hand, it can also play the effect of strengthening the structural strength of the tray 100, especially the bending resistance of the tray 100 in the length direction of the first groove 112a. The first beam body 120 is embedded in the first groove 112a, and the supporting portion 122 resists the inner wall of the first groove 112a to form a second groove 122a for routing. When the tray 100 is suspended or subjected to external force, the supporting portions 112 on both sides of the first groove 112a exert a force on the structural wall of the first groove 112a. At this time, the supporting portion 122 that resists the inner wall of the first groove 112a can accept the force, thereby reducing the deformation degree of the supporting portion 112.

[0057] See also Figure 5 or Figure 7 The sealing portion 124 seals the second groove 122 a in the supporting portion 122 , which not only seals the second groove 122 a , but also connects the two ends of the supporting portion 122 , thereby improving the strength of the supporting portion 122 .

[0058] like Figure 6 or Figure 8 As shown, since the abutting portion 122 and the covering portion 124 are an integrated structure, as the length of the first beam body 120 increases, the abutting portion 122 and the covering portion 124 can always maintain good sealing performance, thereby reducing the possibility of accidents caused by poor sealing.

[0059] It should be noted that the “resistance” mentioned in this embodiment refers to the physical state in which an object supports other objects through its shape contour, which may be direct contact between the object and other objects or indirect contact between the object and other objects.

[0060] You can refer to Figures 4 to 6 In some embodiments, the covering portion 124 includes a covering segment 1242 that covers the second groove 122 a , and the covering segment 1242 is integrally formed with the supporting portion 122 .

[0061] In this embodiment, both ends of the cover segment 1242 are directly connected to the supporting portion 122 , and since the first beam body 120 has the same cross-section at any position in the length direction, an extrusion molding process can be selected to achieve one-piece molding of the cover segment 1242 and the supporting portion 122 .

[0062] It should be noted that extrusion molding refers to placing a molten matrix into a special extrusion molding device and applying a certain pressure to extrude the molten matrix into a mold cavity, and the extruded matrix still retains a specific shape.

[0063] By adopting the technical solution of this embodiment, the connection structure between the covering section 1242 and the supporting portion 122 is designed so that it can be manufactured by extrusion, with relatively low production cost. The wall thickness of the first beam body 120 manufactured by this process is relatively uniform, and a good sealing effect can be achieved.

[0064] Furthermore, a rounded corner is provided at the connection between the cover section 1242 and the abutting portion 122 to reduce stress concentrated at the connection.

[0065] like Figure 5 or Figure 6 As shown, in some embodiments, the cover portion 124 further includes a first extension segment 1244 , which is located on one side of the cover segment 1242 and is used to abut against the supporting portion 112 .

[0066] It should be noted that, in this embodiment, the first extension section 1244 abuts against the supporting portion 112, which refers to other structures outside the first groove 112a of the supporting portion 112. The surface abutting against the first extension section 1244 can be a flat surface, a stepped surface, a wavy surface, etc., which is not limited in this embodiment.

[0067] The structure of the covering portion 124 in this embodiment is adopted, which is connected to the supporting portion 112 via the first extension section 1244. On the one hand, the first extension section 1244 can serve as a limiting structure to remind the staff that the first beam body 120 has been installed to the appropriate position in the first groove 112a. On the other hand, the first extension section 1244 can increase the contact area between the first beam body 120 and the supporting portion 112, thereby improving the stability and firmness of the connection between the first beam body 120 and the supporting portion 112.

[0068] Optionally, the first extension section 1244 is in the shape of a long strip.

[0069] Please continue reading Figure 5 and Figure 6 In some embodiments, the cover portion 124 further includes a second extension segment 1246 , which is located on a side of the cover segment 1242 away from the first extension segment 1244 and is used to support the supporting portion 112 .

[0070] In this embodiment, the second extending section 1246 is similar to the first extending section 1244 , and both are structures for supporting the supporting portion 112 adjacent to the first groove 112 a.

[0071] In this embodiment, by respectively disposing the first extension section 1244 and the second extension section 1246 on both sides of the cover section 1242 , the contact area between the first beam body 120 and the supporting portion 112 can be further increased, thereby improving the stability and firmness of the connection between the two.

[0072] In addition, in terms of production technology, it is only necessary to open grooves corresponding to the first extension section 1244 and the second extension section 1246 on the mold cavity for extruding the first beam body 120, so as to realize the production of the first beam body 120 of this embodiment without increasing additional manufacturing costs.

[0073] Optionally, the second extension section 1246 is in the shape of a long strip.

[0074] See also Figure 7 and Figure 8 In some embodiments, the covering portion 124 includes a covering segment 1242 that covers the second groove 122a and a first extending segment 1244 located on one side of the covering segment 1242. The supporting portion 122 includes a first connecting segment 1221 for supporting the supporting portion 112, and the first extending segment 1244 is in contact with the first connecting segment 1221.

[0075] In this embodiment, based on the structural feature that the first extension section 1244 abuts against the first connection section 1221 , the abutting portion 122 and the covering portion 124 can be integrally arranged through sheet metal processing.

[0076] Sheet metal processing refers to the process of cold processing metal sheets, including shearing, punching, cutting, folding, riveting, splicing, rolling, etc. The parts made by this process have the characteristic of consistent thickness.

[0077] Specifically, the second groove 122a is first formed by a stamping process, and then the first connecting section 1221 and the cover portion 124 are formed by bending, rolling and other processes.

[0078] By adopting the technical solution of this embodiment and designing the connection structure between the supporting portion 122 and the covering portion 124 , the first beam body 120 can be manufactured by sheet metal processing, with relatively low manufacturing cost and also good sealing performance.

[0079] Optionally, the first beam body 120 is made of cold-rolled steel, stainless steel or other materials.

[0080] For reference Figure 7 and Figure 8In some embodiments, one end of the first extension section 1244 away from the covering section 1242 is connected to one end of the first connection section 1221 away from the second groove 122a.

[0081] It should be noted that, regarding the connection method between the first connecting section 1221 and the first extending section 1244 in this embodiment, reference can be made to Figure 7 The connection method between the second connecting section 1222 and the second extending section 1246.

[0082] In this embodiment, the first connecting section 1221 and the first extending section 1244 are connected to each other through structures such as rounded corners and transition arcs.

[0083] Furthermore, the first connecting section 1221 and the cover section 1242 can form a seamlessly connected plate surface, that is, the cover portion 124 is plate-shaped. Based on the connection method between the first extension section 1244 and the first connecting section 1221, the cover portion 124 can be formed by bending the first connecting section 1221, and then the first extension section 1244 is abutted against the first connecting section 1221 through a rolling process.

[0084] By adopting the technical solution of this embodiment, the first connecting section 1221 abuts against the supporting portion 112, and then the first connecting section 1221 is bent to form the covering portion 124, so that the second groove 122a is sealed while increasing the contact area between the first beam body 120 and the supporting portion 112, thereby improving the stability of the structure.

[0085] like Figure 7 As shown, in some embodiments, the supporting portion 122 further includes a buckling section 1223 , which is located at an end of the first connecting section 1221 away from the second groove 122 a , and abuts against an end of the first connecting section 1221 away from the supporting member 110 .

[0086] In this embodiment, a pre-tightening force can be applied to the snap-fit ​​section 1223, that is, the distance between the end of the snap-fit ​​section 1223 and the first connecting section 1221 is less than, equal to or slightly greater than the thickness of the first extension section 1244, so that the first extension section 1244 can abut against the first connecting section 1221 under the action of the snap-fit ​​section 1223.

[0087] Optionally, the buckling section 1223 is in a barb shape.

[0088] By adopting the technical solution of this embodiment, the design of connecting the cover portion 124 with the hook-shaped snap-fit ​​section 1223 can close the first beam body 120 and reduce the possibility of leakage in the gap between the first connecting section 1221 and the first extending section 1244.

[0089] Please continue reading Figure 7 and Figure 8In some embodiments, the covering portion 124 further includes a second extension segment 1246, which is located on a side of the covering segment 1242 away from the first extension segment 1244, and the supporting portion 122 includes a second connecting segment 1222 for supporting the supporting portion 112, and the second extension segment 1246 is in contact with the second connecting segment 1222.

[0090] In this embodiment, the second connecting section 1222 has a similar function to the first connecting section 1221 , and both are used to connect the cover portion 124 and increase the connection area with the supporting portion 112 , which will not be described in detail herein.

[0091] It should be noted that, in the present embodiment, the first beam body 120 is made of sheet metal technology, so one of the first connecting section 1221 and the second connecting section 1222 is integrally provided with the cover portion 124 , and the other is connected to the snap-fit ​​section 1223 , so that the cover portion 124 abuts against the supporting portion 122 .

[0092] refer to Figure 5 or Figure 7 In some embodiments, the supporting portion 122 also includes a first supporting segment 1224, a second supporting segment 1225, and a third supporting segment 1226 which are sequentially connected to form a second groove 122a. The first supporting segment 1224 and the third supporting segment 1226 are respectively connected to the covering portion 124, and at least one of the first supporting segment 1224, the second supporting segment 1225, and the third supporting segment 1226 abuts against the inner wall of the first groove 112a.

[0093] In this embodiment, the first abutting section 1224, the second abutting section 1225 and the third abutting section 1226 form a square structure. Of course, the first abutting section 1224 and the second abutting section 1225, and the second abutting section 1225 and the third abutting section 1226 can be connected by arc sections to reduce stress at the connection.

[0094] By adopting the technical solution of this embodiment, the second groove 122a formed by the first supporting section 1224, the second supporting section 1225 and the third supporting section 1226 can provide sufficient space while also providing a better supporting effect for the first groove 112a.

[0095] It is worth mentioning that one, two or three of the first abutting section 1224, the second abutting section 1225 and the third abutting section 1226 may abut against the inner wall of the first groove 112a. When there are more than two abutting sections abutting against the inner wall of the first groove 112a, the assembly accuracy parameters may be set so that deformation occurs during assembly so that more than two abutting surfaces abut against the inner wall of the first groove 112a.

[0096] In other embodiments, the triangular second groove 122a may also be formed by two abutting sections.

[0097] In some embodiments, the tray 100 further includes a first adhesive member, which is disposed in the first groove 112 a and connects the supporting member 110 and the first beam body 120 .

[0098] In this embodiment, the first adhesive member can be anaerobic adhesive, instant adhesive, epoxy adhesive, hot melt adhesive, polyurethane adhesive, silicone, UV curing adhesive, etc.

[0099] This embodiment uses a first adhesive to connect the supporting member 110 and the first beam body 120. There is no need to set a connecting structure on the supporting member 110 or the first beam body 120, which relatively simplifies the structure of the supporting member 110 and the first beam body 120 and reduces the manufacturing cost.

[0100] It should be emphasized that the design of the first adhesive in this embodiment is combined with the first extension section 1244 and the second extension section 1246 in the above embodiment, which can increase the adhesive area and improve the fixing effect.

[0101] In some embodiments, the supporting portion 112 has a first surface and a second surface. The first groove 112 a is defined on the first surface, and a boss 1122 is formed on the second surface.

[0102] In this embodiment, the thickness of the supporting portion 112 and the boss 1122 may be the same. In this way, the supporting member 110 may be manufactured by sheet metal processing, and the production cost is relatively low.

[0103] Optionally, the second surface is used to support structural parts such as battery cells, and the first surface is used as the bottom surface of the support member 110. In this way, the boss 1122 can be hidden in the support member 110, reducing the impact of the boss 1122 on the appearance of the support member 110.

[0104] In other embodiments, the thickness of the supporting portion 112 may be increased, and the first groove 112 a is only a groove body opened within the thickness range of the supporting portion 112 .

[0105] In other embodiments, there may be multiple first grooves 112 a , and the multiple first grooves 112 a are distributed on the first surface or the second surface.

[0106] For reference Figure 4 and Figure 5 In some embodiments, the tray 100 further includes a second beam body 130 , the second beam body 130 is provided with a third groove 130 a , and the third groove 130 a is covered on the boss 1122 .

[0107] In this embodiment, the third groove 130a is in a C shape. The second beam 130 is hollow and forms a plurality of cavities 130b. The plurality of cavities 130b extend along its length direction and are arranged in its height direction. In this way, on the one hand, the weight of the second beam 130 can be reduced, and on the other hand, the structural strength of the second beam 130 can be improved, and the possibility of stress concentration caused by uneven thickness resulting in the fracture of the second beam 130 can be reduced.

[0108] Adopting the technical solution of this embodiment, by arranging the second beam 130 at the boss 1122 and the first beam 120 at the first groove 112a, the structural strength at the boss 1122 or the first groove 112a can be enhanced, and the service life of the tray 100 can be improved.

[0109] Further, the second beam 130 abuts against the supporting portion 112.

[0110] Optionally, a chamfer is provided on the inner wall of the third groove 130a near one end of the supporting portion 112 to facilitate the abutment of the second beam 130 with the boss 1122 and the supporting portion 112.

[0111] In some embodiments, the tray 100 further includes a second adhesive member. The second adhesive member is disposed in the third groove 130a and connects the supporting member 110 and the second beam 130.

[0112] In this embodiment, the second adhesive member has a similar function to the first adhesive member, and will not be repeated here.

[0113] Please refer to Figure 1 , in some embodiments, the supporting member 110 further includes an enclosing portion 114. The enclosing portion 114 is disposed around the supporting portion 112, and the first groove 112a is connected to the enclosing portion 114.

[0114] In this embodiment, the enclosing portion 114 and the supporting portion 112 enclose a receiving cavity for placing structural components such as the battery cell. The first groove 112a or the boss 1122 is connected to the enclosing portion 114 in the length direction, which can be connected at one end or both ends. In a top view, it can be regarded as a T shape or an I shape. Correspondingly, the first beam 120 and the second beam 130 also extend to the enclosing portion 114, and the second beam 130 can abut against the enclosing portion 114.

[0115] Adopting the technical solution of this embodiment, the first groove 112a not only has the function of routing itself, but also can play the role of a reinforcing rib in combination with the enclosing portion 114, improving the structural stability of the tray 100.

[0116] According to some embodiments of the present application, the present application provides a battery pack, including the tray 100 of any of the above embodiments. The battery pack also includes a battery cell and a cover body, the cover body is buckled on the tray 100, and the battery cell is stored between the cover body and the tray 100.

[0117] According to some embodiments of the present application, an electrical device includes the battery pack of the above embodiment.

[0118] The power-consuming device may be any of the aforementioned devices or systems using batteries.

[0119] According to some embodiments of the present application, a vehicle includes the battery pack of the above embodiments.

[0120] See also Figures 4 to 6 According to some embodiments of the present application, the abutting portion 122 and the cover portion 124 are integrally formed by an extrusion process. The cover portion 124 is provided with a first extension section 1244 and a second extension section 1246 on both sides, and the first extension section 1244 and the second extension section 1246 are both abutted against the supporting portion 112. In addition, the first beam body 120 and the supporting member 110 are connected by a first adhesive. In this way, the sealing effect of the second groove 122a can be significantly improved, and the first extension section 1244 and the second extension section 1246 can increase the adhesive area and improve the connection strength between the first beam body 120 and the supporting member 110.

[0121] See also Figures 7 and 8 According to some embodiments of the present application, the abutting portion 122 and the sealing portion 124 are integrally formed by a rolling process. Among them, the abutting portion 122 is provided with a first connecting section 1221 and a second connecting section 1222 on both sides, and the sealing portion 124 is provided with a first extending section 1244 and a second extending section 1246 on both sides. A buckling section 1223 is provided at one end of the first connecting section 1221, and the buckling section 1223 abuts against one end of the first extending section 1244 away from the first connecting section 1221, so that the first extending section 1244 and the first connecting section 1221 are tightly abutted. One end of the second connecting section 1222 is connected to one end of the second extending section 1246 by an arc. With such a design, while improving the sealing effect of the second groove 122a, it only needs to be processed through several sheet metal processes, and the production cost is relatively low.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A pallet, characterized in that: include: A supporting member, the supporting member comprising a supporting portion, the supporting portion being provided with a first groove; as well as The first beam body comprises a supporting portion and a covering portion, the supporting portion supports the inner wall of the first groove, the supporting portion has a second groove at least partially located in the first groove, the covering portion covers the second groove, and the supporting portion and the covering portion are integrally arranged.

2. The pallet according to claim 1, characterized in that The sealing portion includes a sealing section for sealing the second groove, and the sealing section is integrally provided with the abutting portion.

3. The pallet according to claim 2, characterized in that: The cover portion further comprises a first extension section, which is located at one side of the cover portion and is used to abut against the supporting portion.

4. The pallet according to claim 3, characterized in that: The cover portion further comprises a second extension section, which is located on a side of the cover portion away from the first extension section and is used to abut against the supporting portion.

5. The pallet according to claim 1, characterized in that: The covering portion includes a covering section for covering the second groove and a first extending section located at one side of the covering section, and the abutting portion includes a first connecting section for abutting the supporting portion, and the first extending section abuts against the first connecting section.

6. The tray according to claim 5, characterized in that One end of the first extension section away from the covering section is connected to one end of the first connection section away from the second groove.

7. The tray according to claim 5, characterized in that The abutting portion further includes a buckling section, which is located at an end of the first connecting section away from the second groove, and abuts against an end of the first connecting section away from the supporting member.

8. The tray according to claim 5, characterized in that The cover portion further includes a second extension segment, which is located on a side of the cover portion away from the first extension segment. The abutting portion includes a second connecting segment for abutting the supporting portion, and the second extension segment abuts against the second connecting segment.

9. The pallet according to any one of claims 1 to 8, characterized in that: The abutting portion also includes a first abutting section, a second abutting section and a third abutting section which are connected in sequence to form the second groove, the first abutting section and the third abutting section are respectively connected to the sealing portion, and at least one of the first abutting section, the second abutting section and the third abutting section abuts against the inner wall of the first groove.

10. The pallet according to any one of claims 1 to 8, characterized in that: The tray further includes a first adhesive component, which is disposed in the first groove and connects the supporting component and the first beam body.

11. The pallet according to any one of claims 1 to 8, characterized in that: The supporting portion has a first surface and a second surface. The first groove is formed on the first surface, and a boss is formed on the second surface.

12. The pallet according to claim 11, characterized in that The tray further comprises a second beam body, the second beam body is provided with a third groove, and the third groove is covered on the boss.

13. The pallet according to claim 12, characterized in that The tray further includes a second adhesive component, which is disposed in the third groove and connects the supporting component and the second beam body.

14. The pallet according to any one of claims 1 to 8, characterized in that: The supporting member further comprises an enclosing portion, which is arranged around the supporting portion, and the first groove is connected to the enclosing portion.

15. A battery pack, characterized in that: Comprising a pallet as described in any one of claims 1-14.

16. An electrical device, characterized in that: Comprising the battery pack as claimed in claim 15.

17. A vehicle, characterized in that: Comprising the battery pack as claimed in claim 15.

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