Tray device, battery pack and electric equipment

Abstract

The utility model relates to a tray device, a battery pack and electric equipment. The device comprises a first plate, a second plate, a supporting structure and an anti-collision structure, the second plate and the first plate are oppositely arranged, the first plate and the second plate are suitable for forming a containing cavity, the supporting structure is located in the containing cavity, one end of the supporting structure abuts against the first plate, and the other end of the supporting structure abuts against the second plate. The other end of the supporting structure abuts against the second plate, and the anti-collision structure is arranged in the width direction of the first plate and / or the second plate.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and more specifically, to a tray device, a battery pack and an electrical device. Background Art

[0002] In the related art, a battery pack includes a tray and a battery cell. The battery cell is arranged in the tray. The structural strength of the tray is usually low. In the event of collision with an external object, the tray is easily deformed, causing the battery cell to be hit, resulting in a safety accident.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] One purpose of the utility model is to provide a new technical solution for a tray device.

[0005] According to one aspect of the utility model, a tray device is provided, which includes: a first plate, a second plate, a support structure and an anti-collision structure, wherein the second plate is arranged opposite to the first plate, the first plate and the second plate are adapted to form a receiving cavity, the support structure is located in the receiving cavity, one end of the support structure abuts against the first plate, and the other end of the support structure abuts against the second plate, and the anti-collision structure is arranged along the width direction of the first plate and / or the second plate.

[0006] Optionally, the anti-collision structure is located between the first plate and the second plate, and the accommodating cavity is arranged on one side in the length direction of the first plate and / or the second plate.

[0007] Optionally, the anti-collision structure is provided at both ends of the first plate and / or the second plate in the length direction.

[0008] Optionally, the first plate is located below the second plate, the anti-collision structure is provided along the width direction of the first plate, and the anti-collision structure is connected to the first plate.

[0009] Optionally, the anti-collision structure is located between the first plate and the second plate, and the accommodating cavity is located on one side of the anti-collision structure.

[0010] Optionally, the anti-collision structure is spaced apart from the second plate.

[0011] Optionally, a first reinforcing structure is further included, wherein the first reinforcing structure is connected to a side of the first plate opposite to the anti-collision structure, and the first reinforcing structure is arranged opposite to the anti-collision structure.

[0012] Optionally, a protection plate is further included, which is arranged opposite to the first plate, one side of the first reinforcement structure is connected to the first plate, and the other side of the first reinforcement structure is connected to the protection plate.

[0013] Optionally, the protection plate includes at least two stacked plate bodies, and ribs are arranged between adjacent plate bodies.

[0014] Optionally, a side beam is further included, and the side beam is arranged on the first plate. The side beam, the anti-collision structure and the first plate enclose the accommodating cavity.

[0015] Optionally, two side beams are included, and two ends of the anti-collision structure are fixedly connected to the two side beams respectively.

[0016] Optionally, a second reinforcing structure is further included, wherein the second reinforcing structure is connected to a side of the first plate opposite to the supporting structure, and the second reinforcing structure is arranged opposite to the supporting structure.

[0017] Optionally, a protection plate is further included, wherein the protection plate is arranged opposite to the first plate, one side of the second reinforcement structure is connected to the first plate, and the other side of the second reinforcement structure is connected to the protection plate.

[0018] Optionally, a cavity is formed inside at least one of the first plate and the supporting structure, and the cavity is suitable for being filled with a heat exchange medium.

[0019] Optionally, a cavity is formed inside both the first plate and the supporting structure, the cavity of the first plate is in communication with the cavity of the supporting structure, and the cavity is suitable for being filled with a heat exchange medium.

[0020] Optionally, at least one of the supporting structure and the second reinforcing structure is made of metal, resin or ceramic.

[0021] Optionally, a plurality of the supporting structures are arranged between the first plate and the second plate, and the plurality of the supporting structures are arranged at intervals.

[0022] Optionally, a partition is provided in the accommodating cavity, and the partition divides the accommodating cavity into a plurality of chambers, and the supporting structure is provided in each of the chambers.

[0023] Optionally, the partition is arranged along the width direction of the first plate, the supporting structure is arranged along the length direction of the first plate, and the partition is connected to the supporting structure.

[0024] Optionally, a plurality of battery cells are arranged in the accommodating cavity, the plurality of battery cells are spaced apart from the supporting structure, a height of the supporting structure is greater than a height of the battery cells, and a gap is formed between the plurality of battery cells and the second plate.

[0025] Optionally, the support structure is arranged along the length direction of the first plate, a battery cell is arranged in the accommodating cavity, and a buffer space is formed between the battery cell and the support structure and the anti-collision structure.

[0026] According to a second aspect of the present application, a battery pack is provided, which includes the above-mentioned tray device.

[0027] According to a third aspect of the present application, an electric device is provided, which includes the battery pack described in the present application.

[0028] One technical effect of the utility model is that the support structure can transmit impact force. When an external object falls from above the battery pack, the impact force is transmitted from the second plate to the first plate through the support structure, thereby effectively dispersing the impact force. Each component can absorb the impact force, avoiding the impact force being concentrated on the second plate, causing the second plate to deform and causing the battery cell to deform.

[0029] In addition, an anti-collision structure is provided along the width direction of the first plate and / or the second plate, and the anti-collision structure effectively improves the structural strength of the first plate and / or the second plate. When an external object enters from one side of the anti-collision structure of the first plate and / or the second plate, the anti-collision structure can effectively absorb the energy of the impact of the external object, thereby protecting the first plate and / or the second plate as a whole, avoiding deformation of the first plate and / or the second plate, and effectively protecting the components in the accommodating cavity.

[0030] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0032] Figure 1 It is a schematic diagram of the structure of a battery pack according to an embodiment of the present application.

[0033] Figure 2 It is a schematic structural diagram of the battery pack from another angle according to an embodiment of the present application.

[0034] Figure 3 It is a schematic structural diagram of a tray device according to an embodiment of the present application.

[0035] Figure 4It is a schematic structural diagram of a tray device without a protective plate according to an embodiment of the present application.

[0036] Figure 5 is a schematic diagram of the structure of a battery pack without a second plate according to an embodiment of the present application.

[0037] Figure 6 yes Figure 5 Another angle of view.

[0038] Figure 7 is a top view of a tray device according to an embodiment of the present application.

[0039] Figure 8 yes Figure 7 Sectional view along line AA.

[0040] Fig. 9 yes Figure 8 A partial enlarged view of point D in the middle.

[0041] Fig.10 yes Figure 7 Sectional view along line BB.

[0042] Fig.11 yes Fig.10 A partial enlarged view of point C in the middle.

[0043] Description of reference numerals:

[0044] 101. Chamber; 2. Support structure; 201. Second cavity; 3. Second reinforcement structure; 4. Anti-collision structure; 5. First reinforcement structure; 6. Side beam; 7. Battery cell; 8. Partition; 801. Groove; 9. Protection plate; 901. Plate body; 902. Rib; 11. Test block; 12. Second plate; 13. First plate; 1301. First cavity; 21. Test ball. DETAILED DESCRIPTION

[0045] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0046] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0047] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0048] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0049] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0050] According to an embodiment of the present application, a pallet device is provided. The pallet device includes: a first plate 13, a second plate 12, a support structure 2, and an anti-collision structure 4, wherein the second plate 12 is arranged opposite to the first plate 13, the first plate 13 and the second plate 12 are adapted to form a receiving cavity, the support structure 2 is located in the receiving cavity, one end of the support structure 2 in the width direction abuts against the first plate 13, and the other end of the support structure 2 in the width direction abuts against the second plate 12, and the anti-collision structure 4 is arranged along the width direction of the first plate 13 and / or the second plate 12.

[0051] Specifically, if Figures 1 to 3 As shown, the tray device is used to install the parts to be installed. The parts to be installed may be but are not limited to battery cells, battery cell modules, etc. For example, battery cells include but are not limited to soft-pack battery cells, square battery cells, cylindrical battery cells, etc. For ease of explanation, the parts to be installed are battery cells 7. The tray device and the battery cells 7 are installed together to form a battery pack. A plurality of battery cells 7 are installed in the accommodating cavity. The first plate 13 is used to carry the battery cells 7. The material of the first plate 13 is metal, resin, ceramic, etc. The shape of the first plate 13 may be but is not limited to rectangular, circular, elliptical, etc. For example, the first plate 13 is rectangular as a whole.

[0052] The material of the second plate 12 is metal, resin, ceramic, etc. The second plate 12 is arranged opposite and parallel to the first plate 13. The first plate 13 and the second plate 12 are suitable for forming a receiving cavity. The material of the support structure 2 can be but not limited to metal, resin, ceramic, etc. The support structure 2 is a plate-like structure. The support structure 2 is fixedly connected to the first plate 13 and the second plate 12 by welding, clamping, bonding, bolting, riveting, etc. The second plate 12 protects the battery cell 7 above the tray device.

[0053] The anti-collision structure 4 is arranged along the width direction of the first plate 13 and / or the second plate 12. Figure 3 The length direction of the first plate 13 and / or the second plate 12 is as shown in FIG. Figure 3As shown in F in the figure. The material of the anti-collision structure 4 may be but not limited to metal, resin, ceramic, etc. The anti-collision structure 4 may be but not limited to a cuboid, an ellipsoid, a cylinder, etc. The anti-collision structure 4 is fixed to the first plate 13 by welding, clamping, bonding, bolting, riveting, etc. During installation, the battery cell 7 is installed in the accommodating cavity by bonding, clamping, etc. It should be noted that when the battery pack is installed, the anti-collision structure 4 is located on the front side of the vehicle. The anti-collision structure 4 can absorb the impact force of external objects entering from the front of the vehicle, such as stones. Of course, the anti-collision structure 4 can also be located on the rear side of the vehicle.

[0054] In the embodiment of the present application, the support structure 2 can transmit the impact force. When an external object (for example, the test block 11) falls from above the battery pack, the impact force is transmitted from the second plate 12 to the first plate 13 through the support structure 2, thereby effectively dispersing the impact force. Each component can absorb the impact force, avoiding the impact force from being concentrated on the second plate 12, so that the second plate 12 is deformed and the parts to be installed, such as the battery cell 7, are deformed.

[0055] In addition, an anti-collision structure is provided along the width direction of the first plate 13 and / or the second plate 12. The anti-collision structure 4 effectively improves the structural strength of the first plate 13 and / or the second plate 12. When an external object (taking the test ball 21 as an example) enters from one side of the anti-collision structure 4 of the first plate 13 and / or the second plate 12 (for example, enters from one side of the anti-collision structure 4 along the length direction), the anti-collision structure 4 can effectively absorb the energy of the impact of the external object, thereby protecting the first plate 13 and / or the second plate 12 as a whole, avoiding deformation of the first plate 13 and / or the second plate 12, and effectively protecting the battery cell.

[0056] Of course, the materials, positional relationships, connection methods, etc. of the first plate 13, the second plate 12, the support structure 2, and the anti-collision structure 4 are not limited to the above embodiments, and those skilled in the art can make settings according to actual needs.

[0057] In an example, the anti-collision structure 4 is located between the first plate 13 and the second plate 12 , and the accommodating cavity is arranged on one side of the length direction of the first plate 13 and / or the second plate 12 .

[0058] like Figure 1 , Figure 3 As shown, the anti-collision structure 4 is fixed on the first plate 13 and is located between the first plate 13 and the second plate 12. The anti-collision structure 4 is located on one side of the length direction of the first plate 13. One side of the anti-collision structure 4 forms a receiving cavity. When the first plate 13 is hit by an external force, the impact force is transmitted from the first plate 13 to the anti-collision structure 4. The impact force can be effectively absorbed by the anti-collision structure 4.

[0059] In addition, the accommodating cavity is arranged on one side in the length direction of the first plate 13 and / or the second plate 12. The anti-collision structure 4 can protect the battery cell 7 in the accommodating cavity in the width direction. This makes the tray device protect the battery cell 7 more comprehensively.

[0060] In one example, the anti-collision structure 4 is disposed at both ends of the first plate 13 and / or the second plate 12 in the length direction.

[0061] In this example, the pallet device is provided with two anti-collision structures 4. The two anti-collision structures 4 are relatively arranged at both ends of the length direction of the first plate 13 and / or the second plate 12. In this way, the two anti-collision structures can effectively strengthen the structure of both ends of the pallet device, further improving the structural strength of the pallet device.

[0062] In an example, the first plate 13 is located below the second plate 12 , and the anti-collision structure 4 is disposed along the width direction of the first plate 13 , and the anti-collision structure 4 is connected to the first plate 13 .

[0063] like Figure 1 As shown, the first plate 13 and the second plate 12 are both connected to the support structure 2. The first plate 13 is located below the second plate 12. The anti-collision structure is connected to the first plate 13 along the width direction of the first plate 13. For example, the connection method is riveting, welding, bolt connection, etc. In this example, the anti-collision structure 4 can effectively improve the structural strength of the first plate 13. When an external object (taking the test ball 21 as an example) enters from one side of the anti-collision structure 4 of the first plate 13 (for example, enters from one side of the anti-collision structure 4 along the length direction), the anti-collision structure 4 can effectively absorb the energy of the impact of the external object, thereby protecting the first plate 13 as a whole and preventing the first plate 13 from deformation.

[0064] In an example, the anti-collision structure 4 is spaced apart from the second plate 12 .

[0065] In this example, a gap is formed between the second plate 12 and the anti-collision structure 4. The gap can effectively prevent the impact force from the bottom of the battery pack from being transmitted from the anti-collision structure 4 to the second plate 12, thereby causing deformation of the second plate 12. This arrangement can effectively protect the second plate 12, thereby ensuring the integrity of the second plate 12 structure.

[0066] Of course, the size of the gap is not limited here, and those skilled in the art can set it according to actual needs.

[0067] In one example, the tray device further includes a first reinforcement structure 5 , wherein the first reinforcement structure 5 is connected to a side of the first plate 13 opposite to the anti-collision structure 4 , and the first reinforcement structure 5 is arranged opposite to the anti-collision structure 4 .

[0068] like Figure 2 , Figure 4 As shown, the first reinforcement structure 5 is in a strip shape. The material of the first reinforcement structure 5 is metal, resin, ceramic, etc. The first reinforcement structure 5 is arranged on the back side of the first plate 13 along the width direction of the first plate 13. The first reinforcement structure 5 is arranged parallel to and opposite to the anti-collision structure 4. The first reinforcement structure 5 is fixedly connected to the first plate 13 by welding, clamping, bonding, bolting, riveting, etc. In this example, the anti-collision structure 4 and the first reinforcement structure 5 can jointly reinforce the structural strength of the first plate 13 from the two opposite surfaces of the first plate 13, which makes it less likely for the first plate 13 to be deformed when impacted by external force.

[0069] Of course, the material and shape of the first reinforcement structure 5 are not limited to the above embodiments, and those skilled in the art can configure them according to actual needs.

[0070] In one example, the tray device further includes a protection plate 9 , which is arranged opposite to the first plate 13 , one side of the first reinforcement structure 5 is connected to the first plate 13 , and the other side of the first reinforcement structure 5 is connected to the protection plate 9 .

[0071] like Figure 2 , Figure 6 , Figure 8 As shown, the protection plate 9 is fixed under the first plate 13. For example, it is connected to the first reinforcing structure 5 by welding, clamping, bonding, bolting, riveting, etc. The material of the protection plate 9 is metal, polymer material, ceramic, etc. The protection plate 9 can protect the first plate 13 as a whole. When an external object, such as a test ball 21, enters the tray device from the side of the anti-collision structure 4 along the length direction, it first collides with the protection plate 9. Since the first reinforcing structure 5 and the anti-collision structure 4 are relative to each other, the impact force is transmitted from the protection plate 9 to the first reinforcing structure 5, and then from the first reinforcing structure 5 to the first plate 13, and finally from the first plate 13 to the anti-collision structure 4. In this way, the impact force can be effectively dispersed on different components, thereby effectively reducing the deformation of the protection plate 9 and the first plate 13, and preventing the battery cell 7 from deformation.

[0072] Of course, the number of the plates 901 is not limited to two, but may be three, four, five or more, and those skilled in the art may configure the plates 901 according to actual needs.

[0073] In one example, the protection plate 9 includes at least two stacked plates 901 , and ribs 902 are disposed between adjacent plates 901 .

[0074] like Figure 1 , Figure 2 , Fig. 9As shown, the protective plate 9 includes two plate bodies 901. The material of the plate body 901 is metal, polymer material, ceramic, etc. The two plate bodies 901 are arranged in parallel and completely cover the first plate 13. A rib 902 is arranged between the two plate bodies 901. For example, the rib 902 connects the two plate bodies 901 together by welding, clamping, bonding, bolting, riveting, etc. The rib 902 is arranged along the width direction of the first plate 13. In this example, the multiple plate bodies 901 have higher structural strength, and the rib 902 can further improve the structural strength of the protective plate 9. The structure composed of the two plate bodies 901 and the rib 902 can more effectively absorb the energy of the impact, thereby further improving the structural strength of the tray device and preventing the first plate 13 and the second plate 12 from deformation.

[0075] In one example, the pallet device further includes a side beam 6 , and the side beam 6 is disposed on the first plate 13 . The side beam 6 , the anti-collision structure 4 and the first plate 13 enclose the accommodating cavity.

[0076] like Figure 3 The side beam 6 is arranged along the length direction of the first plate 13. The side beam 6 is fixed to the first plate 13 by welding, clamping, bonding, bolting, riveting, etc. One end of the side beam 6 is fixedly connected to one end of the anti-collision structure 4 by welding, clamping, bonding, bolting, riveting, etc. The side beam 6 and the anti-collision structure 4 form an angle. The side beam 6, the anti-collision structure 4 and the first plate 13 are fixedly connected to enclose the accommodating cavity. The structure composed of the side beam 6 and the anti-collision structure 4 strengthens the structural strength of the first plate 13 in different directions of the first plate 13, thereby further improving the overall structural strength of the pallet device.

[0077] Furthermore, the side beam 6 is fixedly connected to the second plate 12. For example, the connection is fixedly connected by welding, clamping, bonding, bolting, riveting, etc. This arrangement can further improve the overall structural strength of the pallet device.

[0078] Optionally, the side beam 6 is made of metal, resin, ceramic, etc. In other examples, the side beam 6, the anti-collision structure 4 and the first plate 13 are integrally formed, for example, by extrusion, casting, etc. This method makes the overall structural strength of the tray device higher.

[0079] In one example, the pallet device includes two side beams 6 , and two ends of the anti-collision structure 4 are fixedly connected to the two side beams 6 respectively.

[0080] like Figure 3 , Figure 7 , Figure 8As shown, the anti-collision structure 4 includes a first end and a second end that are relatively arranged, one of the two side beams 6 is located at the first end of the anti-collision structure 4, and the other of the side beams 6 is located at the second end of the anti-collision structure 4. The anti-collision structure 4 is arranged along the width direction of the first plate 13. The two side beams 6 are arranged along the length direction of the first plate 13. The two side beams 6 are respectively located at both ends of the anti-collision structure 4. The two side beams 6 are respectively fixedly connected to the anti-collision structure 4 to form a semi-enclosed structure. The connection method is as described above. In this example, the semi-enclosed structure can be more firmly connected to the first plate 13, thereby more effectively improving the structural strength of the pallet device. When the test ball 21 enters the pallet device from one side of the anti-collision structure 4 along the length direction, due to the structural reinforcement effect of the semi-enclosed structure on the first plate 13, the first plate 13 is less likely to deform.

[0081] In addition, the side beam 6 can also absorb the impact force, which makes the impact force of the external object more dispersed and less destructive.

[0082] Of course, the arrangement directions of the side beam 6 and the anti-collision structure 4 are not limited to the above embodiments, and those skilled in the art can make selections according to actual needs.

[0083] In one example, the tray device further includes a second reinforcing structure 3 , wherein the second reinforcing structure 3 is connected to a side of the first plate 13 opposite to the supporting structure 2 , and the second reinforcing structure 3 is arranged opposite to the supporting structure 2 .

[0084] like Figure 1 , Figure 4 As shown, the second reinforcement structure 3 is strip-shaped. The material of the second reinforcement structure 3 is metal, resin, ceramic, etc. The second reinforcement structure 3 is fixed to the back side of the first plate 13, that is, the side away from the second plate 12, by welding, clamping, bonding, bolting, riveting, etc. The second reinforcement structure 3 is arranged along the length direction of the first plate 13. The second reinforcement structure 3, together with the support structure 2, respectively reinforces the structure of the first plate 13 from the front and back sides of the first plate 13, thereby further improving the structural strength of the first plate 13 and avoiding deformation of the first plate 13 due to the impact force from above the battery pack.

[0085] Furthermore, multiple support structures 2 and second reinforcement structures 3 are provided. Multiple support structures 2 are provided in parallel. Multiple second reinforcement structures 3 are provided in parallel. This arrangement can strengthen the structure of the first plate 13 at different positions of the first plate 13, significantly improving the overall structural strength of the tray device.

[0086] Of course, the material and shape of the second reinforcement structure 3 are not limited to the above embodiments, and those skilled in the art can configure them according to actual needs.

[0087] In one example, the tray device further includes a protection plate 9 , which is arranged opposite to the first plate 13 , one side of the second reinforcement structure 3 is connected to the first plate 13 , and the other side of the second reinforcement structure 3 is connected to the protection plate 9 .

[0088] like Figure 1 , Fig. 9 As shown, the protective plate 9 is as described above. The second reinforcement structure 3 is fixedly connected to the first plate 13 and the protective plate 9 respectively by welding, clamping, bonding, bolting, riveting, etc. In this example, the impact force from above the battery pack is transmitted to the protective plate 9 via the second plate 12, the support structure 2, the first plate 13, and the second reinforcement structure 3. Since the support structure 2 and the second reinforcement structure 3 are arranged relative to each other, the impact force can be quickly transmitted to the protective plate 9, making the impact force more dispersed, avoiding the impact force from being concentrated on the second plate 12 and the first plate 13, thereby avoiding the deformation of the second plate 12 and the first plate 13 to prevent the battery cell 7 from deformation.

[0089] Of course, the specific structure of the protection plate 9 is not limited to the above embodiment, and those skilled in the art can configure it according to actual needs.

[0090] In one example, a cavity is formed inside at least one of the first plate 13 and the supporting structure 2 , and the cavity is suitable for being filled with a heat exchange medium.

[0091] like Fig. 9 As shown, a first cavity 1301 is formed inside the first plate 13. A second cavity 201 is formed inside the support structure 2. The first cavity 1301 and the second cavity 201 are used to fill a heat exchange medium. The heat exchange medium may be, but is not limited to, water, alcohol, ethylene glycol, R12, R22, R32, R290, etc. The heat exchange medium can heat or cool the battery cell 7 to ensure that the battery cell 7 operates at a safe temperature. In this example, the first plate 13 not only serves to carry the battery cell 7, but also serves to cool the battery cell 7. The support structure 2 not only serves to transmit the impact force, but also serves to cool the battery cell 7.

[0092] In other examples, the cavity may be formed only inside the first plate 13 or the supporting structure 2 .

[0093] Of course, the shape and size of the cavity are not limited here, and those skilled in the art can choose according to actual needs.

[0094] In one example, a cavity is formed inside the first plate 13 and the support structure 2 , the cavity of the first plate 13 is connected to the cavity of the support structure 2 , and the cavity is suitable for filling a heat exchange medium.

[0095] In this example, the first cavity 1301 is connected to the second cavity 201 through a connecting pipe. The second cavity 201 is connected to an external heat exchange device to circulate the heat exchange medium. The heat exchange medium may enter the second cavity 201 through the first cavity 1301, and then enter the heat exchange device from the second cavity 201; or the heat exchange medium may enter the second cavity 201 through a part of the first cavity 1301, and then enter another part of the first cavity 1301 through the second cavity 201, and finally enter the heat exchange device from another part of the first cavity 1301. This arrangement makes it easy to connect the first cavity 1301 and the second cavity 201 with the heat exchange device.

[0096] Optionally, the heat exchange medium is, for example, water, phase change material, etc.

[0097] Of course, in other examples, the first cavity 1301 and the second cavity 201 may be isolated from each other, and both are connected to the heat exchange device respectively.

[0098] In one example, a plurality of the support structures 2 are disposed between the first plate 13 and the second plate 12 , and the plurality of the support structures 2 are disposed at intervals.

[0099] like Figure 3 , Figure 5 As shown, the tray device includes a plurality of support structures 2. The plurality of support structures 2 are arranged in parallel, and an installation space is formed between the support structure 2 and the side beam 6 and between two adjacent support structures 2. The battery cell 7 is installed in the installation space. The plurality of support structures 2 can more effectively transfer the impact force received by the second plate 12 to the first plate 13 and the protective plate 9. This allows the battery cell 7 to be more effectively protected.

[0100] Of course, the number of the supporting structures 2 is not limited here, and the multiple supporting structures 2 may not be arranged in parallel. Those skilled in the art may arrange them according to actual needs.

[0101] In one example, a partition 8 is disposed in the accommodating cavity, and the partition 8 divides the accommodating cavity into a plurality of chambers 101 , and the supporting structure 2 is disposed in each of the chambers 101 .

[0102] like Figure 3 , Figure 5As shown, the partition 8 is arranged along the width direction of the first plate 13. Both ends of the partition 8 are connected to the side beam 6 respectively. The material of the partition 8 is metal, resin, ceramic, etc. The partition 8 is fixed to the first plate 13 by welding, clamping, bonding, bolting, riveting, etc. The partition 8 divides the accommodating cavity into two chambers 101. Two support structures 2 are arranged in each chamber 101. The two support structures 2 are arranged along the length direction of the first plate 13. The support structures 2 of different chambers 101 are symmetrically arranged relative to the partition 8. Each chamber 101 is divided into three installation spaces by the support structure 2. A plurality of blade batteries are arranged in the installation space. The partition 8 can effectively improve the structural strength of the first plate 13, thereby making the overall structural strength of the tray device higher. The partition 8 and the support structure 2 are arranged crosswise. This makes the overall structural strength of the tray device higher. The thickness of the partition 8 is greater than the thickness of the support structure 2. The blade battery is arranged parallel to the support structure 2. This arrangement can effectively prevent the partition plate 8 from being separated from the first plate 13 due to the movement of the blade battery hitting the partition plate 8 .

[0103] Optionally, a groove 801 is provided on the end surface of the partition 8 facing away from the first plate 13. For example, the groove 801 extends along the width direction of the first plate 13. The groove 801 is used to accommodate an adhesive to facilitate bonding of the partition 8 and the second plate 12.

[0104] In an example, the partition 8 is disposed along the width direction of the first plate 13 , the support structure 2 is disposed along the length direction of the first plate 13 , and the partition 8 is connected to the support structure 2 .

[0105] like Figure 3 As shown, in this example, the partition 8 is arranged orthogonally to the multiple support structures 2 and the partition 8 is connected to the multiple support structures 2. In this arrangement, the overall structure formed by the partition 8 and the multiple support structures 2 can effectively transfer the impact force received by the second plate 12 to the first plate 13 and the protection plate 9, thereby making the overall structural strength of the tray device higher.

[0106] In one example, a plurality of battery cells 7 are disposed in the accommodating cavity, the plurality of battery cells 7 are spaced apart from the supporting structure 2 , the height of the supporting structure 2 is greater than the height of the battery cells 7 , and gaps are formed between the plurality of battery cells 7 and the second plate 12 .

[0107] like Figure 1As shown, four support structures 2 and a partition 8 are arranged in the accommodating cavity. The four support structures 2 are divided into two rows. A partition 8 is connected between the two rows of support structures 2. Each row of support structures is divided into three chambers. A plurality of battery cells are divided into six groups. Three groups of battery cells 7 in each row are respectively located in three chambers in each row. The height of the support structure 2 is greater than the height of the battery cell 7. The battery cell 7 is bonded and fixed to the first plate 13. In this way, a gap is formed between the second plate 12 and the battery cell 7. Even if the second plate 12 is deformed to a set size, the second plate 12 will not squeeze the battery cell 7 due to the existence of the gap. The battery cell 7 will not be damaged, thereby effectively improving the safety performance of the battery pack.

[0108] Of course, the height of the buffer space is not limited here, and those skilled in the art can set it according to actual needs.

[0109] In an example, the support structure 2 is arranged along the length direction of the first plate 13 , and a battery cell 7 is arranged in the accommodating cavity. A buffer space is formed between the battery cell 7 and the support structure 2 and the anti-collision structure 4 .

[0110] like Figure 2 , Figure 3 , Figure 5 As shown, a plurality of support structures 2 are arranged in the accommodating cavity. A battery cell 7 is arranged between the plurality of support structures 2. In the length direction of the first plate 13, a buffer space is formed between the battery cell 7 and the support structure 2 and the anti-collision structure 4. In this way, even if the anti-collision structure 4 is deformed, due to the existence of the buffer space, the anti-collision structure 4 will not squeeze the battery cell 7, and the battery cell 7 will not be damaged, thereby effectively improving the safety performance of the battery pack.

[0111] Of course, the size of the buffer space is not limited here, and those skilled in the art can set it according to actual needs.

[0112] According to a second embodiment of the present application, a battery pack is provided, which includes the tray device described in the embodiment of the present application.

[0113] The battery pack includes a battery cell 7, and the battery cell 7 is installed in the receiving cavity of the tray device. The battery pack has the characteristics of high structural strength and good safety performance.

[0114] According to a third embodiment of the present application, an electric device is provided, which includes the battery pack described in the embodiment of the present application.

[0115] The electrical equipment may be, but is not limited to, vehicles, aircraft, ships, engineering machinery, etc. The electrical equipment has the characteristics of firm structure and good durability.

[0116] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0117] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tray device, characterized in that: include: A first plate (13), a second plate (12), a support structure (2) and an anti-collision structure (4), wherein the second plate (12) is arranged opposite to the first plate (13), the first plate (13) and the second plate (12) are suitable for forming a receiving cavity, the support structure (2) is located in the receiving cavity, one end of the support structure (2) abuts against the first plate (13), and the other end of the support structure (2) abuts against the second plate (12), and the anti-collision structure (4) is arranged along the width direction of the first plate (13) and / or the second plate (12).

2. The tray device according to claim 1, characterized in that: The anti-collision structure (4) is located between the first plate (13) and the second plate (12), and the accommodating cavity is arranged on one side of the length direction of the first plate (13) and / or the second plate (12).

3. The tray device according to claim 1, characterized in that: The anti-collision structure (4) is provided at both ends of the first plate (13) and / or the second plate (12) in the length direction.

4. The tray device according to claim 1, characterized in that: The first plate (13) is located below the second plate (12), the anti-collision structure (4) is arranged along the width direction of the first plate (13), and the anti-collision structure (4) is connected to the first plate (13).

5. The tray device according to claim 4, characterized in that: The anti-collision structure (4) is spaced apart from the second plate (12).

6. The tray device according to claim 2, characterized in that: It also includes a first reinforcement structure (5), which is connected to the side of the first plate (13) opposite to the anti-collision structure (4), and the first reinforcement structure (5) is arranged opposite to the anti-collision structure (4).

7. The tray device according to claim 6, characterized in that: It also includes a protective plate (9), which is arranged opposite to the first plate (13), one side of the first reinforcing structure (5) is connected to the first plate (13), and the other side of the first reinforcing structure (5) is connected to the protective plate (9).

8. The tray device according to claim 7, characterized in that: The protection plate (9) comprises at least two plate bodies (901) stacked together, and ribs (902) are arranged between adjacent plate bodies (901).

9. The tray device according to claim 1, characterized in that: It also includes a side beam (6), wherein the side beam (6) is arranged on the first plate (13), and the side beam (6), the anti-collision structure (4) and the first plate (13) enclose the accommodating cavity.

10. The tray device according to claim 9, characterized in that: It comprises two side beams (6), and two ends of the anti-collision structure (4) are respectively fixedly connected to the two side beams (6).

11. The tray device according to claim 1, characterized in that: It also comprises a second reinforcing structure (3), wherein the second reinforcing structure (3) is connected to a side of the first plate (13) opposite to the supporting structure (2), and the second reinforcing structure (3) is arranged opposite to the supporting structure (2).

12. The tray device according to claim 11, characterized in that: It also includes a protection plate (9), which is arranged opposite to the first plate (13), one side of the second reinforcement structure (3) is connected to the first plate (13), and the other side of the second reinforcement structure (3) is connected to the protection plate (9).

13. The tray device according to claim 11, characterized in that: A cavity is formed inside at least one of the first plate (13) and the supporting structure (2), and the cavity is suitable for being filled with a heat exchange medium.

14. The tray device according to claim 13, characterized in that: The first plate (13) and the support structure (2) both have cavities formed inside, the cavity of the first plate (13) is in communication with the cavity of the support structure (2), and the cavity is suitable for being filled with a heat exchange medium.

15. The tray device according to claim 11, characterized in that: At least one of the support structure (2) and the second reinforcement structure (3) is made of metal, resin or ceramic.

16. The tray device according to claim 1, characterized in that: A plurality of the support structures (2) are arranged between the first plate (13) and the second plate (12), and the plurality of the support structures (2) are arranged at intervals.

17. The tray device according to claim 1, characterized in that: A partition (8) is arranged in the accommodating cavity, and the partition (8) divides the accommodating cavity into a plurality of chambers, and the supporting structure (2) is arranged in each of the chambers.

18. The tray device according to claim 17, characterized in that The partition (8) is arranged along the width direction of the first plate (13), the support structure (2) is arranged along the length direction of the first plate (13), and the partition (8) is connected to the support structure (2).

19. The tray device according to claim 1, characterized in that: A plurality of battery cells (7) are arranged in the accommodating cavity, the plurality of battery cells (7) are spaced apart from the supporting structure (2), the height of the supporting structure (2) is greater than the height of the battery cells (7), and a gap is formed between the plurality of battery cells (7) and the second plate (12).

20. The tray device according to claim 1, characterized in that The support structure (2) is arranged along the length direction of the first plate (13), a battery cell (7) is arranged in the accommodating cavity, and a buffer space is formed between the battery cell (7) and the support structure (2) and the anti-collision structure (4).

21. A battery pack, characterized in that: Comprising a tray device as claimed in any one of claims 1 to 20.

22. An electrical equipment, characterized in that: Comprising the battery pack as claimed in claim 21.

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