Tray, battery pack and vehicle

Abstract

The utility model relates to a tray, a battery pack and a vehicle. The tray comprises a front cross beam extending in the left-right direction; the front cross beam comprises a cross beam body and an anti-collision part which is connected to the cross beam body and protrudes downwards in the direction away from the cross beam body in the vertical direction, the anti-collision part comprises a collapse cavity, and the collapse cavity is used for collapsing and absorbing energy when the anti-collision part is collided. According to the tray, the anti-collision part with the crumple cavity is constructed on the front cross beam, so that the front cross beam is not damaged due to deformation when the battery pack is subjected to a bottom scraping working condition, the whole protection structure is relatively complete, and the airtight performance of the battery pack meets a set requirement. Compared with the prior art, an anti-collision beam does not need to be independently arranged, the overall structure of the anti-collision part is simple, large and heavy parts are not needed, the weight is light, the cost is low, and good practicability is achieved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery protection, and in particular, to a tray, a battery pack and a vehicle. Background Art

[0002] At present, bottom scraping protection is very important for the safety of electric vehicles, especially the safety of battery packs. In related technologies, bottom scraping protection is achieved by adding an anti-collision beam structure in the front area of ​​the whole vehicle, that is, by arranging the anti-collision beam in the front side of the battery pack and lower than the height of the battery pack. When the whole vehicle encounters foreign objects in front, the foreign objects will first hit the anti-collision beam. After hitting the foreign objects, the whole vehicle will be lifted to a certain height, thereby avoiding the front beam of the battery pack from being directly hit and causing damage, thereby improving the safety of the battery.

[0003] However, the anti-collision beam needs to be installed separately, and a mounting structure needs to be reserved under the vehicle, which increases the assembly steps and also increases the manufacturing cost. Utility Model Content

[0004] The purpose of the present disclosure is to provide a tray, a battery pack and a vehicle. The tray has an anti-collision part with a collapse cavity on the front cross beam, so that when the battery pack experiences a bottom scraping condition, the deformation of the front cross beam will not be damaged, the entire protective structure is relatively complete, and the airtightness of the battery pack can meet the set requirements. Compared with the related art, there is no need to set up an anti-collision beam separately, and the overall structure of the anti-collision part is relatively simple, and there are no large new parts, so it is light in weight, low in cost, and has good practicality.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a pallet in a first aspect, comprising a front crossbeam extending in a left-right direction;

[0006] The front cross beam includes a cross beam body and an anti-collision portion connected to the cross beam body and protruding downward in the up and down directions away from the cross beam body. The anti-collision portion includes a collapse cavity, which is used to collapse and absorb energy when the anti-collision portion is impacted.

[0007] Optionally, the anti-collision portion includes upper transverse ribs and lower transverse ribs spaced apart in the up-down direction, and front vertical ribs and rear vertical ribs spaced apart in the front-back direction;

[0008] The upper transverse ribs, the front vertical ribs, the lower transverse ribs and the rear vertical ribs surround the collapse cavity.

[0009] Optionally, the upper transverse rib is located above the rear vertical rib in the up-down direction.

[0010] Optionally, a collapse structure capable of collapse and deformation is formed at the junction of the upper horizontal rib and the rear vertical rib.

[0011] Optionally, the collapse structure includes an arc-shaped transition rib connecting the upper transverse rib and the rear vertical rib.

[0012] Optionally, the collapse structure further comprises a connecting vertical rib provided at one end of the upper horizontal rib close to the rear vertical rib, wherein the connecting vertical rib is connected to the rear vertical rib via an arc-shaped transition rib;

[0013] Wherein, the thickness of the connecting vertical ribs is smaller than the thickness of the upper transverse ribs and / or the rear vertical ribs.

[0014] Optionally, oblique ribs are formed at the junction of the lower transverse ribs and the rear vertical ribs, and the oblique ribs are inclined from the upper transverse ribs toward the lower transverse ribs, and the oblique ribs are inclined toward the front vertical ribs.

[0015] Optionally, the front vertical rib is formed with a first mounting portion for mounting a first rivet nut; and / or

[0016] The lower transverse rib is formed with a second mounting portion for mounting a second rivet nut.

[0017] Optionally, the collapse cavity forms a first opening on at least one side in the left-right direction;

[0018] The tray further comprises a lateral blocking member; the lateral blocking member is sealingly mounted on the first opening; and / or

[0019] The rear vertical rib is formed with a second opening for avoiding the first rivet nut;

[0020] The tray further includes a gap sealing member for sealingly mounting on the second opening.

[0021] Optionally, the pallet further comprises a rear crossbeam, a left longitudinal beam, a right longitudinal beam and a bottom guard plate;

[0022] The front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam form an annular frame structure, the bottom guard plate is connected to the bottom surface of the annular frame structure, and the annular frame structure and the bottom guard plate form an installation space for installing battery cells.

[0023] Optionally, the bottom guard plate is connected to the lower transverse rib of the front cross beam through a second rivet nut.

[0024] Optionally, the pallet further includes a sealing ring provided between the annular frame structure and the bottom guard plate, for sealingly connecting the annular frame structure and the bottom guard plate.

[0025] According to a second aspect of the present disclosure, a battery pack is provided, the battery pack comprising a battery cell and the tray provided in the first aspect of the present disclosure; the tray comprises an installation space, the battery cell is installed in the installation space.

[0026] According to a third aspect of the present disclosure, a vehicle is further provided, comprising the battery pack provided in the second aspect of the present disclosure.

[0027] Through the above technical solution, the tray disclosed in the present invention includes a front crossbeam extending in the left-right direction, and the front crossbeam includes a crossbeam body and an anti-collision part, wherein the anti-collision part protrudes downward relative to the crossbeam body in the up-down direction and has a collapse cavity. When the vehicle encounters a foreign object in front of it, the foreign object will first collide with the anti-collision part, and the collapse cavity absorbs energy by collapse to avoid damage to the front crossbeam, thereby protecting the battery cells located behind the front crossbeam inside the tray. The present invention has an anti-collision part with a collapse cavity in the structure of the front crossbeam of the tray, so that when the battery pack experiences a bottom scraping condition, the deformation of the front crossbeam will not be damaged, the entire protective structure is relatively complete, and the airtightness of the battery pack can meet the set requirements. Compared with the related art, there is no need to set up an anti-collision beam separately, and the overall structure of the anti-collision part is relatively simple, and there are no large new parts, so it is light in weight, low in cost, and has good practicality.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0030] Figure 1 is a structural diagram of a tray provided in some embodiments of the present disclosure.

[0031] Figure 2 is a structural diagram of a front crossbeam of a pallet provided in some embodiments of the present disclosure.

[0032] Figure 3 This is a disassembly diagram of the front crossbeam, side blocking pieces and gap blocking pieces of the pallet provided in some embodiments of the present disclosure.

[0033] Figure 4 It is a lateral structural diagram of a front cross beam provided in some embodiments of the present disclosure.

[0034] Figure 5 It is a lateral structural diagram of the front cross beam provided in some embodiments of the present disclosure, without showing the lateral blocking parts.

[0035] Figure 6 It is a lateral structural diagram of a front cross beam provided in some embodiments of the present disclosure.

[0036] Figure 7 is based on Figure 6 CC section view in.

[0037] Figure 8 It is a cross-sectional view in the left-right direction of a front cross beam provided in some embodiments of the present disclosure.

[0038] Fig. 9 is an exploded diagram of a battery pack provided in some embodiments of the present disclosure.

[0039] Description of Reference Numerals

[0040] 10-tray; 11-installation space; 100-front crossbeam; 110-anti-collision part; 1101-first opening; 111-upper transverse rib; 112-lower transverse rib; 1121-second installation part; 113-front vertical rib; 1131-first installation part; 114-rear vertical rib; 1141-second opening; 115-arc transition rib; 116-oblique rib; 117-connecting vertical rib; 120-crossbeam body; 200-rear crossbeam; 300-left longitudinal beam; 400-right longitudinal beam; 500-first rivet nut; 600-second rivet nut; 700-lateral blocking piece; 800-gap blocking piece;

[0041] 20-bottom guard plate; 30-sealing ring; 40-battery cell;

[0042] A-collapse cavity; B-beam cavity. DETAILED DESCRIPTION

[0043] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0044] In the present disclosure, unless otherwise stated, directional words such as "up, down, left, right, front, and back" generally refer to the up, down, left, right, front, and back in the corresponding drawings, that is, the up, down, left, right, front, and back of the vehicle; "inside and outside" refer to the inside and outside of the outline of the corresponding component; "far and near" refer to the distance between the corresponding structure or the corresponding component and the distance between the corresponding structure and the corresponding component and the distance between the corresponding structure and the corresponding component and the corresponding component. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another and do not have order and importance. In addition, in the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0045] The present disclosure provides a tray 10, a battery pack and a vehicle. The tray 10 not only has a strong bottom protection capability, but is also light in weight, low in cost and highly practical.

[0046] In order to achieve the above purpose, Figures 1 to 8 As shown, an embodiment of the present disclosure provides a pallet 10, which includes a front crossbeam 100 extending in the left-right direction; the front crossbeam 100 includes an anti-collision portion 110 protruding downward in the up-down direction, and the anti-collision portion 110 includes a collapse cavity A, which is used to collapse and absorb energy when the anti-collision portion 110 is impacted.

[0047] Through the above technical solution, the tray 10 of the present disclosure includes a front crossbeam 100 extending in the left-right direction, the front crossbeam 100 includes a crossbeam body 120 and an anti-collision portion 110 connected to the crossbeam body 120 and protruding downward in the up-down direction away from the crossbeam body 120 and having a collapse cavity A. When the vehicle encounters a foreign object in front of it, the foreign object will first hit the anti-collision portion 110, and the collapse cavity A will avoid damage to the front crossbeam 100 by collapsing and absorbing energy, thereby protecting the battery cell 40 located behind the front crossbeam 100 in the tray 10. The present disclosure constructs the anti-collision portion 110 with the collapse cavity A below the crossbeam body 120 of the front crossbeam 100 of the tray 10, so that when the battery pack experiences a bottom scraping condition, the deformation of the front crossbeam 100 will not be damaged, the entire protective structure is relatively complete, and the airtightness of the battery pack can meet the set requirements. Compared with the related art, there is no need to set up an anti-collision beam separately, and the overall structure of the anti-collision part 110 is relatively simple, without large new parts, light weight, low cost, and good practicality.

[0048] In some embodiments, the front beam 100 may include a beam body 120 and an anti-collision portion 110 connected to the bottom of the beam body 120. At least one beam cavity B is formed on the beam body 120. The beam cavity B is located above the collapse cavity A and is divided into two different chambers by an upper transverse rib 111.

[0049] If the vehicle is hit severely during driving, the second rivet nut 600 on the lower transverse rib 112 for connecting the bottom guard plate 20 may move upward due to the deformation of the anti-collision part 110, so as to break through the upper transverse rib 111 and destroy the airtightness of the battery pack. Therefore, the upper transverse rib 111 is arranged farther from the second rivet nut 600, that is, a sufficient distance is reserved between the two, so that in the bottom scraping condition, even if the second rivet nut 600 is subjected to a certain displacement, it will not break through the upper transverse rib 111, thereby ensuring that the cross beam cavity B and the collapse cavity A are physically isolated.

[0050] It is worth noting that the collapse cavity A is configured to collapse and deform without being damaged when subjected to a preset impact, that is, it only undergoes a certain deformation without causing tearing or breaking.

[0051] It should be noted that the collapse cavity A may be an integral structure extending in the left-right direction, or may be a plurality of sub-cavities arranged at intervals in the left-right direction, which can absorb energy by collapse when impacted.

[0052] In some embodiments, the anti-collision portion 110 may include an upper horizontal rib 111 and a lower horizontal rib 112 spaced apart in the up-down direction, and a front vertical rib 113 and a rear vertical rib 114 spaced apart in the front-back direction; wherein the upper horizontal rib 111, the front vertical rib 113, the lower horizontal rib 112 and the rear vertical rib 114 surround a collapse cavity A.

[0053] The anti-collision portion 110 may be an approximately quadrilateral collapse cavity A formed by connecting an upper horizontal rib 111, a front vertical rib 113, a lower horizontal rib 112 and a rear vertical rib 114 in sequence. When impacted, the quadrilateral collapse cavity A can absorb the impact energy through plastic deformation, thereby protecting the battery cells 40 in the tray 10.

[0054] In some embodiments, the upper transverse rib 111 is located above the rear vertical rib 114 in the up-down direction. The upper transverse rib 111 is located above the rear vertical rib 114. For example, the length of the front vertical rib 113 can be greater than that of the rear vertical rib 114. The upper transverse rib 111 and the lower transverse rib 112 can be arranged horizontally in the front-to-back direction, and the upper and lower ends of the front vertical rib 113 are respectively connected to the front ends of the upper transverse rib 111 and the lower transverse rib 112, and the lower end of the rear vertical rib 114 can be directly connected to the rear end of the lower transverse rib 112. The upper end of the rear vertical rib 114 is lower than the upper transverse rib 111 in the up-down direction. For example, the connection between the two can be achieved through other connecting structures. Therefore, the connecting structure forms a relatively weak position of the entire anti-collision portion 110. When a collision occurs, the front vertical rib 113, the lower transverse rib 112 and the rear vertical rib 114 or the position of the connecting structure are deformed first, so that the upper transverse plate can be protected to avoid damage due to the collision that affects the safety of the battery pack.

[0055] In some embodiments, a collapsible structure capable of collapsing and deforming is formed at the junction of the upper horizontal rib 111 and the rear vertical rib 114, and the collapsible structure can preferentially collapse and deform when the anti-collision part 110 is impacted. The collapsible structure can be made of a relatively low-strength material, a relatively thin thickness, or a structure of a special shape, so that the position is preferentially deformed when the anti-collision part 110 is impacted to avoid overall damage to the anti-collision part 110.

[0056] The collapse structure can be constructed using any suitable structure, such as Figure 4 and Figure 5As shown, for example, the collapse structure includes an arc-shaped transition rib 115 connecting the upper horizontal rib 111 and the rear vertical rib 114. The arc-shaped transition rib 115 can be a structure located above the rear vertical rib 114 and recessed toward the inside of the collapse cavity A. When the anti-collision portion 110 is impacted, the arc-shaped transition rib 115 is preferentially collapsed and deformed. In addition, the arc-shaped transition rib 115 can also be recessed in a direction away from the collapse cavity A, and the above-mentioned collapse deformation can also be achieved. It can be understood that the above-mentioned collapse structure can also be constructed as a plurality of arc-shaped transition ribs 115 that are recessed in a direction toward the inside of the collapse cavity A and recessed in a direction away from the collapse cavity A, which are connected in sequence, and the effect of absorbing energy through collapse deformation can also be achieved.

[0057] It should be noted that the thickness of the arc-shaped transition rib 115 can be less than the thickness of the upper transverse rib 111 and / or the rear vertical rib 114, that is, the thickness of the arc-shaped transition rib 115 is smaller than the thickness of the upper transverse rib 111 and the rear vertical rib 114, so that it is easy to collapse and deform first and absorb energy when impacted. Of course, the thickness of the arc-shaped transition rib 115 can also be equal to the thickness of the upper transverse rib 111 and / or the rear vertical rib 114.

[0058] Optionally, the collapse structure further includes a connecting vertical rib 117 provided at one end of the upper transverse rib 111 close to the rear vertical rib 114, and the connecting vertical rib 117 is connected to the rear vertical rib 114 through an arc-shaped transition rib 115; wherein the thickness of the connecting vertical rib 117 is less than the thickness of the upper transverse rib 111 and / or the rear vertical rib 114. The connecting vertical rib 117 is connected to the lower part of the right side of the upper transverse rib 111, and one end of the connecting vertical rib 117 away from the upper transverse rib 111 is connected to the upper end of the rear vertical rib 114 through the arc-shaped transition rib 115. At the same time, the thickness of the connecting vertical rib 117 is less than the thickness of the upper transverse rib 111 and / or the rear vertical rib 114, so that it is easy to preferentially collapse and deform to absorb energy when impacted, thereby avoiding damage at this position and improving the airtightness of the size.

[0059] It can be understood that the above-mentioned connecting vertical ribs 117 can raise the position of the upper transverse ribs 111 upwards to form a relatively large gap with the second rivet nut 600, thereby preventing the second rivet nut 600 from abutting against the upper transverse ribs 111 and being squeezed and damaged due to impact.

[0060] Among them, the connecting vertical rib 117 is located in front of the rear vertical rib 114. Therefore, the collapse structure can form a step structure through the connecting vertical rib 117 and the arc-shaped transition rib 115 to avoid damage due to extrusion deformation, and can also be used for the installation and fixation of other components.

[0061] In order to further prevent the anti-collision portion 110 from being damaged during collision and affecting the airtightness of the battery pack. Figure 4 and Figure 5As shown, in other embodiments, the junction of the lower transverse rib 112 and the rear vertical rib 114 is further formed with an oblique rib 116 for improving the strength of the anti-collision portion 110, and the oblique rib 116 is inclined from the upper transverse rib 111 toward the lower transverse rib 112, and toward the front vertical rib 113. By providing the oblique rib 116 connecting the rear vertical rib 114 and the lower transverse rib 112 at the junction thereof, the strength of the rear vertical rib 114 is improved, so that when the tray 10 is subjected to the bottom scraping condition, the rear vertical rib 114 will not be damaged, thereby improving the overall strength of the anti-collision portion 110.

[0062] In some embodiments of the present disclosure, an arc-shaped transition rib 115 is provided at the junction of the upper horizontal rib 111 and the rear vertical rib 114, and an oblique rib 116 is provided at the junction of the upper horizontal rib 111 and the rear vertical rib 114. Because both are provided on the opposite side of the impact part, when the bottom is scraped, the right vertical rib will not be damaged, and at the same time, the collapse cavity A can be guided to form a collapse zone to facilitate energy absorption.

[0063] In order to fix explosion-proof valves and other similar parts, such as Figure 6 and Figure 8 As shown, in some embodiments, the front vertical rib 113 is formed with a first mounting portion 1131 for mounting the first rivet nut 500. The first mounting portion 1131 may be a through hole that penetrates the front vertical rib 113 in the front-to-back direction, and is used to fix the above-mentioned other parts such as the explosion-proof valve on the front transverse rib by mounting the first rivet nut 500.

[0064] In order to fix the bottom guard plate 20, as Figure 6 and Figure 7 As shown, in some other embodiments of the present disclosure, the lower transverse rib 112 is formed with a second mounting portion 1121 for mounting the second rivet nut 600 .

[0065] Similarly, the second mounting portion 1121 may be a through hole that penetrates the lower transverse rib 112 in the up-down direction, and is used to fix the bottom guard plate 20 by installing the second rivet nut 600. It can be understood that the lower transverse rib 112 is used to lock the second rivet nut 600, and therefore, the lower transverse rib 112 can be set thicker than the upper transverse rib 111 to bear the force of the bottom scraping working condition.

[0066] like Figures 1 to 3As shown, in some embodiments, the collapse cavity A forms a first opening 1101 on at least one side in the left-right direction, and the tray 10 further includes a lateral blocking member 700; the lateral blocking member 700 is sealed and installed in the first opening 1101; so that the collapse cavity A can be relatively sealed as a whole. For example, the collapse cavity A passes through the opposite sides of the front cross beam 100 in the left-right direction; the tray 10 further includes a lateral blocking member 700; the lateral blocking member 700 is sealed and installed in the first openings 1101 on the opposite sides of the collapse cavity A. There are two lateral blocking members 700, which are respectively sealed and installed in the first openings 1101 on the opposite sides of the collapse cavity A. For example, welding or other processes can be used to seal and connect the first openings 1101 to form a sealed structure to improve the airtightness of the battery cells 40 inside the tray 10.

[0067] like Figure 3 As shown, in other embodiments, the rear vertical rib 114 is formed with a second opening 1141 for avoiding the first rivet nut 500 ; the tray 10 also includes a gap plugging member 800 for sealingly installing in the second opening 1141 .

[0068] The gap plugging member 800 can be installed in the second opening 1141 in any suitable manner, including but not limited to welding, and can also be bonded with structural adhesives. It should be noted that both need to meet the sealing requirements. In addition, a clearance opening is provided at a position corresponding to the first mounting portion 1131 on the gap plugging member 800, which is used to avoid the first rivet nut 500 after installation. After the first rivet nut 500 is installed, the gap between the clearance opening and the second rivet nut 600 can be sealed by structural adhesive or welding.

[0069] The tray 10 of the present disclosure is a part of the battery pack structure, and the anti-collision part 110 is formed with the front crossbeam 100 of the tray 10, which is installed on the whole vehicle together with other parts of the battery pack. The application scenarios of the present disclosure can be various working conditions such as parking, driving, and braking of the vehicle.

[0070] In some specific embodiments, the front crossbeam 100 is a part of the tray 10 of the battery pack, and can be made by extrusion or other processes. The anti-collision portion 110 can be composed of an upper transverse rib 111, a front vertical rib 113, a lower transverse rib 112, and a rear vertical rib 114, which are sequentially connected to form the collapse cavity A.

[0071] The side sealing parts are arranged at the two first openings 1101 on both sides of the front cross beam 100 in the left and right directions. The side sealing parts can be made of aluminum alloy or similar materials, and the process can be extrusion or similar processes. They can be connected and fixed to the front cross beam 100 at the first opening 1101 by welding or other processes, but the sealing requirements must be met.

[0072] The gap plugging piece 800 is arranged at the second opening 1141 of the rear vertical rib 114, and an avoidance opening is set on the gap plugging piece 800 for avoiding the first rivet nut 500. The gap plugging piece 800 can be made of aluminum alloy or similar materials, and the process form can be extrusion or similar processes. It can be fixed together with the front cross beam 100 by welding or other processes, that is, fixedly connected at the second opening 1141. The first rivet nut 500 and the gap plugging piece 800 are bonded by structural adhesive or welding, and these areas must meet the sealing requirements.

[0073] From the above introduction, it can be seen that in the pallet 10, an anti-collision portion 110 is mainly provided in the front cross beam 100, and a collapse cavity A is provided in the anti-collision portion 110, and by increasing the gap between the second rivet nut 600 and the upper transverse rib 111, it is ensured that when the battery pack is experiencing a bottom scraping condition, the lower transverse rib 112 of the front cross beam 100 will not be damaged, and even after a certain collapse space is formed, the second rivet nut 600 will not contact the upper transverse rib 111 during the deformation stroke displacement, thereby ensuring the independence and integrity of the two cavities (cross beam cavity B and collapse cavity A), and finally, by providing a lateral blocking member 700 and a gap blocking member 800, the air tightness of the pallet 10 and the battery pack is ensured.

[0074] like Figure 1 As shown, in some embodiments, the tray 10 includes a front crossbeam 100, a rear crossbeam 200, a left longitudinal beam 300 and a right longitudinal beam 400, and forms an annular frame structure, and the tray 10 also includes a bottom guard plate 20; the bottom guard plate 20 is connected to the bottom surface of the annular frame structure, and the annular frame structure and the bottom guard plate 20 form an installation space 11, and the battery cell 40 is used to be installed in the installation space 11. The bottom guard plate 20 is connected to the bottom of the front crossbeam 100, the rear crossbeam 200, the left longitudinal beam 300 and the right longitudinal beam 400, and together with the annular frame structure, forms an installation space 11 for installing the battery cell 40. It can be understood that the front crossbeam 100 and the bottom guard plate 20 are connected to the lower side transverse rib 112 using the second pull rivet nut 600. The rear crossbeam 200, the left longitudinal beam 300 and the right longitudinal beam 400 can also use the above-mentioned pull rivet nut or a similar pull rivet nut to achieve the fixed connection of the bottom guard plate 20.

[0075] In order to achieve a sealed connection between the bottom guard plate 20 and the front cross beam 100, the rear cross beam 200, the left longitudinal beam 300 and the right longitudinal beam 400, in some embodiments, the pallet 10 further includes a sealing ring 30 disposed between the annular frame structure and the bottom guard plate 20, for sealing the annular frame structure and the bottom guard plate 20. The sealing ring 30 can be sealed with reference to materials known in the relevant art, including but not limited to epoxy resin or polyurethane, etc., which will not be described in detail here.

[0076] like Fig. 9 As shown in the figure, an embodiment of the present disclosure provides a battery pack, which includes a battery cell 40 and a tray 10 provided in the above embodiment of the present disclosure, wherein the tray 10 includes an installation space 11, and the battery cell 40 is installed inside the installation space 11. Therefore, the battery pack also has all the above advantages, which will not be described one by one here.

[0077] In some embodiments, the battery pack further includes a battery cell 40; the bottom guard plate 20 is connected to the bottom surface of the annular frame structure, the annular frame structure and the bottom guard plate 20 enclose an installation space 11, and the battery cell 40 is installed in the installation space 11. Among them, the tray 10 includes a front crossbeam 100, a rear crossbeam 200, a left longitudinal beam 300 and a right longitudinal beam 400, and encloses an annular frame structure, and the bottom guard plate 20 is connected to the bottom of the front crossbeam 100, the rear crossbeam 200, the left longitudinal beam 300 and the right longitudinal beam 400, and together with the annular frame structure, encloses an installation space 11 for installing the battery cell 40. It can be understood that the above-mentioned front crossbeam 100 and the bottom guard plate 20 are connected to the lower side transverse rib 112 using the above-mentioned second rivet nut 600. The rear crossbeam 200, the left longitudinal beam 300 and the right longitudinal beam 400 can also use the above-mentioned rivet nut or a similar rivet nut to achieve the fixed connection of the bottom guard plate 20.

[0078] In order to achieve a sealed connection between the bottom guard plate 20 and the front cross beam 100, the rear cross beam 200, the left longitudinal beam 300 and the right longitudinal beam 400, in some embodiments, a sealing ring 30 is provided between the annular frame structure and the bottom guard plate 20 for sealing the connection between the annular frame structure and the bottom guard plate 20. The sealing ring 30 can be sealed with reference to materials known in the relevant art, including but not limited to epoxy resin or polyurethane, etc., which will not be described in detail here.

[0079] The embodiment of the present disclosure also provides a vehicle, which includes the battery pack provided by the above embodiment of the present disclosure, so the vehicle also has all the advantages of the above battery pack. The vehicle includes but is not limited to electric vehicles, hybrid vehicles, etc.

[0080] The tray 10 disclosed in the present invention has an anti-collision part 110 with a collapsing cavity A in the front crossbeam 100 of the tray 10, so that when the battery pack experiences a bottom scraping condition, the deformation of the front crossbeam 100 will not be damaged, the entire protective structure is relatively complete, and the airtightness of the battery pack can meet the set requirements. Compared with the related art, there is no need to set up an anti-collision beam separately, and the overall structure of the anti-collision part 110 is relatively simple, and there are no large new parts, so it is light in weight, low in cost, and has good practicality.

[0081] The tray 10 disclosed in the present invention has a more ingenious structure in the front cross beam 100. The entire structure is relatively simple, and has obvious advantages in weight. It does not have heavy parts, and the process is also relatively simple. The cost of the entire solution is low, and the protection effect can be achieved only through the design of the battery pack.

[0082] At the same time, when the battery pack experiences bottom scraping conditions, the deformation of the front cross beam 100 will not cause damage, the entire protective structure is relatively complete, and the air tightness of the battery pack can meet the set requirements.

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

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

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

Claims

1. A pallet, characterized in that: including a front crossbeam extending in the left-right direction; The front cross beam includes a cross beam body and an anti-collision portion connected to the cross beam body and protruding downward in the up and down directions away from the cross beam body. The anti-collision portion includes a collapse cavity, which is used to collapse and absorb energy when the anti-collision portion is impacted.

2. The pallet according to claim 1, characterized in that: The anti-collision part includes an upper transverse rib and a lower transverse rib arranged at intervals in the up-down direction, and a front vertical rib and a rear vertical rib arranged at intervals in the front-back direction; The upper transverse ribs, the front vertical ribs, the lower transverse ribs and the rear vertical ribs surround the collapse cavity.

3. The pallet according to claim 2, characterized in that: The upper transverse ribs are located above the rear vertical ribs in the up-down direction.

4. The pallet according to claim 2 or 3, characterized in that: A collapse structure capable of collapse and deformation is formed at the junction of the upper transverse ribs and the rear vertical ribs.

5. The pallet according to claim 4, characterized in that: The collapse structure includes an arc-shaped transition rib connecting the upper transverse rib and the rear vertical rib.

6. The pallet according to claim 4, characterized in that: The collapse structure further includes a connecting vertical rib provided at one end of the upper horizontal rib close to the rear vertical rib, wherein the connecting vertical rib is connected to the rear vertical rib via an arc-shaped transition rib; Wherein, the thickness of the connecting vertical ribs is smaller than the thickness of the upper transverse ribs and / or the rear vertical ribs.

7. The pallet according to claim 4, characterized in that: An oblique rib is formed at the junction of the lower transverse rib and the rear vertical rib, and the oblique rib is inclined from the upper transverse rib toward the lower transverse rib, and the oblique rib is inclined toward the front vertical rib.

8. The pallet according to claim 2, characterized in that: The front vertical rib is formed with a first mounting portion for mounting a first rivet nut; and / or The lower transverse rib is formed with a second mounting portion for mounting a second rivet nut.

9. The pallet according to claim 8, characterized in that: The collapse cavity forms a first opening on at least one side of the left-right direction; The tray further comprises a lateral blocking member; the lateral blocking member is sealingly mounted on the first opening; and / or The rear vertical rib is formed with a second opening for avoiding the first rivet nut; The tray further includes a gap sealing member for sealingly mounting on the second opening.

10. The pallet according to claim 1, characterized in that The pallet also includes a rear crossbeam, a left longitudinal beam, a right longitudinal beam and a bottom guard plate; The front cross beam, the rear cross beam, the left longitudinal beam and the right longitudinal beam form an annular frame structure, the bottom guard plate is connected to the bottom surface of the annular frame structure, and the annular frame structure and the bottom guard plate form an installation space for installing battery cells.

11. The pallet according to claim 10, characterized in that The bottom guard plate is connected to the lower transverse rib of the front cross beam through a second rivet nut.

12. The pallet according to claim 11, characterized in that The pallet further comprises a sealing ring arranged between the annular frame structure and the bottom guard plate, wherein the sealing ring is used for sealing connection between the annular frame structure and the bottom guard plate.

13. A battery pack, characterized in that: The battery pack comprises a battery cell and a tray according to any one of claims 1 to 12; The tray includes a mounting space in which the battery cells are mounted.

14. A vehicle, characterized in that: The vehicle includes the battery pack of claim 13.

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