A top cover structure and a battery pack

Abstract

The utility model discloses a top cover structure and battery pack, top cover structure includes: top cover board, first buffer subassembly and second buffer subassembly, first buffer subassembly and second buffer subassembly set up in the opposite sides of top cover board, first buffer subassembly has the buffer function, and second buffer subassembly has the buffer function. This technical scheme is through setting up first buffer subassembly and second buffer subassembly with buffer function respectively at the both sides of top cover board, has realized the double buffer protection of top cover structure whole. Specifically, the setting of first buffer subassembly effectively solved the problem that the existing battery pack top cover board is easy to deform when being subjected to the external force such as treading, guarantees the security and durability of battery pack in the process of transportation, installation and daily use. The setting of second buffer subassembly further prevents the extrusion of the monomer battery in the box body after the top cover board is stressed, reduces the probability that the monomer battery is damaged due to external impact, thereby improving the overall security of battery pack.

Description

Technical Field

[0001] This utility model relates to the technical field of top cover structures, and more particularly to a top cover structure and a battery pack. Background Technology

[0002] With the rapid development of applications such as new energy vehicles and energy storage systems, lithium-ion battery packs are widely used due to their high energy density and good cycle performance. A battery pack typically consists of multiple individual cells, a casing, and a top cover structure. As a crucial component of the battery pack, the top cover structure not only provides sealing and protection but also serves as the first line of defense against external impacts and pressures.

[0003] In practical applications, battery packs often face various external impacts during transportation, installation, and daily use, such as accidental stepping on them or falling tools or objects. Most existing battery pack top covers are made of metal or high-strength engineering plastics, which, while possessing a certain strength, are still prone to deformation or even damage under significant external forces, thus affecting the battery pack's sealing and overall structural strength. Furthermore, when the top cover deforms, it may indent inwards, potentially directly compressing the individual battery cells, damaging the battery casing, and in severe cases, causing safety hazards such as short circuits and thermal runaway.

[0004] To address these issues, some technical solutions attempt to add reinforcing ribs or thicken the top cover material to improve its impact resistance. However, these methods often increase the overall weight and manufacturing cost of the battery pack, hindering product lightweighting and cost-effectiveness. Furthermore, a single structural reinforcement measure cannot simultaneously address both external impact resistance and internal battery protection, still posing certain safety risks. Therefore, how to further improve the impact resistance of the top cover structure and its cushioning protection performance for the internal batteries without significantly increasing the battery pack's weight and cost has become a pressing issue in the current battery pack technology field. Utility Model Content

[0005] One objective of this invention is to provide a top cover structure and battery pack that solves the technical problem of further improving the impact resistance of the top cover structure and the buffer protection performance of the internal battery without significantly increasing the weight and cost of the battery pack.

[0006] To achieve the above objectives, the present invention provides a solution in which the top cover structure includes a top cover plate, a first buffer component, and a second buffer component. The first buffer component and the second buffer component are disposed on opposite sides of the top cover plate. The first buffer component has a buffering function, and the second buffer component has a buffering function.

[0007] Optionally, the first buffer assembly includes a foot pedal and a bracket. The bracket is U-shaped, with one end connected to the top cover plate and the other end connected to the foot pedal. The foot pedal and the top cover plate are spaced apart.

[0008] Optionally, the pedal includes multiple connecting parts and multiple bearing parts, with the connecting parts and bearing parts alternately arranged. The connecting parts are connected to the bracket, and the bearing parts are spaced apart from the bracket to form a buffer cavity.

[0009] Optionally, the bearing portion includes a first plate and a second plate, with the second plate disposed at opposite ends of the first plate, and the connecting portion connected to the end of the second plate away from the first plate, wherein the included angle between the second plate and the first plate is 110°≤α≤150°.

[0010] Optionally, the pedal includes multiple reinforcing parts, and multiple pressure relief holes are provided in the portion between the bearing part and the bracket. The reinforcing parts surround the pressure relief holes and protrude relative to the bearing part.

[0011] Optionally, the first cushioning assembly includes multiple cushioning pads connected to the foot pedal and in contact with the top cover plate, and the cushioning pads are made of silicone.

[0012] Optionally, the top cover plate is recessed towards the first buffer assembly to form a receiving groove, and the second buffer assembly includes multiple foams, which are spaced apart in the receiving groove. The foams are flush with or extend beyond the opening of the receiving groove.

[0013] Optionally, the top cover structure also includes a partition plate disposed between the first buffer assembly and the top cover plate, the partition plate being made of plastic.

[0014] Optionally, one of the partition plate and the top cover plate is provided with a limiting groove, and the other of the partition plate and the top cover plate is provided with a limiting protrusion, with the limiting groove and the limiting protrusion cooperating with each other.

[0015] To achieve the above objectives, the present invention provides a solution in which the battery pack includes a housing, individual batteries, and a top cover structure of any one of the above components, wherein the individual batteries are disposed in the housing and the top cover structure seals the housing.

[0016] The beneficial effects of this utility model are as follows: This technical solution achieves double buffer protection for the entire top cover structure by setting a first buffer component and a second buffer component with buffering function on both sides of the top cover. Specifically, the setting of the first buffer component effectively solves the problem that the existing battery pack top cover is prone to deformation when subjected to external forces such as being stepped on, improving the structural strength and impact resistance of the top cover, and ensuring the safety and durability of the battery pack during transportation, installation, and daily use. The setting of the second buffer component further prevents the top cover from squeezing the individual batteries inside the box after being subjected to force, reducing the probability of individual batteries being damaged by external impact, thereby improving the overall safety and reliability of the battery pack. Therefore, this technical solution, through the optimized design of the top cover structure, synergistically solves the technical problems of easy deformation of the top cover and squeezing of the battery, achieving the technical effects of high structural strength, good safety performance, and strong internal battery protection capability of the battery pack. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the top cover structure provided in this application from a top-down perspective;

[0019] Figure 2 This is a schematic diagram of the top cover structure provided in this application from a side view angle;

[0020] Figure 3 This application provides Figure 1 A magnified view of a portion of region A in the middle;

[0021] Figure 4 This is a schematic diagram of the top cover structure provided in this application from a downward viewing angle.

[0022] Explanation of icon numbers:

[0023] Top cover 10, receiving groove 101, first buffer assembly 20, foot pedal 21, connecting part 211;

[0024] Supporting part 212, buffer cavity 213, first plate 214, second plate 215, reinforcing part 216;

[0025] Pressure relief hole 217, bracket 22, buffer pad 23, second buffer assembly 30, isolation plate 40, foam 31. Detailed Implementation

[0026] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, clearly and comprehensively demonstrating the technical solution. It should be noted that the listed embodiments are only a part of this utility model, and not all possible implementations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the top cover structure provided in this application from a top-down perspective. Figure 2 This is a schematic diagram of the top cover structure provided in this application from a side view angle. Figure 3 This application provides Figure 1 A magnified view of a portion of region A in the middle.

[0028] This embodiment provides a battery pack, which includes a housing, individual batteries, and a top cover structure. The individual batteries are installed inside the housing, and the top cover structure seals the housing. Specifically, the top cover structure includes a top cover plate 10, a first buffer assembly 20, and a second buffer assembly 30, wherein the first buffer assembly 20 and the second buffer assembly 30 are respectively disposed on opposite sides of the top cover plate 10. The first buffer assembly 20 is located on the outer side of the top cover plate 10, i.e., the side facing outwards from the housing, and the second buffer assembly 30 is located on the inner side of the top cover plate 10, i.e., the side facing inwards from the housing and closer to the individual batteries. The first buffer assembly 20 has a buffering function, effectively absorbing and dispersing pressure transmitted to the top cover plate 10 from the outside (such as from people stepping on it or objects impacting it), thereby preventing the top cover plate 10 from deforming or being damaged. The second buffer assembly 30 also has a buffering function; when the top cover plate 10 deforms due to external forces, the second buffer assembly 30 can further absorb and disperse the pressure transmitted inwards from the top cover plate 10, effectively preventing the top cover plate 10 from squeezing the individual batteries inside the housing and reducing the risk of damage to the individual batteries.

[0029] This technical solution achieves dual buffer protection for the entire top cover structure by setting a first buffer component 20 and a second buffer component 30 with buffering functions on both sides of the top cover 10. Specifically, the first buffer component 20 effectively solves the problem of easy deformation of the existing battery pack top cover 10 under external forces such as stepping, improving the structural strength and impact resistance of the top cover 10, and ensuring the safety and durability of the battery pack during transportation, installation, and daily use. The second buffer component 30 further prevents the top cover 10 from squeezing the individual batteries inside the box after being subjected to force, reducing the probability of damage to individual batteries due to external impact, thereby improving the overall safety and reliability of the battery pack. Therefore, this technical solution, through the optimized design of the top cover structure, collaboratively solves the technical problems of easy deformation of the top cover 10 and squeezing of batteries, achieving the technical effects of high structural strength, good safety performance, and strong internal battery protection capabilities of the battery pack.

[0030] This embodiment provides a first buffer assembly 20 for a battery pack top cover structure. The first buffer assembly 20 includes a foot pedal 21 and a bracket 22. Specifically, the bracket 22 has a U-shaped structure, with one end connected to the top cover plate 10 and the other end connected to the foot pedal 21. The foot pedal 21 is supported by the bracket 22 and is spaced apart from the top cover plate 10. The structural design of the U-shaped bracket 22 can absorb and disperse the external impact force through its own elastic deformation when external pressure is applied (such as a person stepping on it or an object impacting it), preventing the top cover plate 10 from directly bearing all the impact. In addition, the foot pedal 21, as the first force-bearing surface, can first disperse the external pressure to the U-shaped bracket 22, and then the bracket 22 transmits and buffers it to the top cover plate 10, further improving the buffering effect.

[0031] This technical solution, through the coordinated arrangement of the U-shaped bracket 22 and the foot pedal 21, effectively absorbs and disperses external impacts, solving the technical problem in the prior art where the top cover plate 10 is prone to deformation or even damage when stepped on or impacted. The U-shaped bracket 22, utilizing its good elasticity and structural characteristics, can generate controllable deformation under external force, thereby converting impact energy into elastic potential energy, effectively reducing the direct force on the top cover plate 10, and significantly improving the impact resistance and structural stability of the top cover plate 10. The spaced arrangement between the foot pedal 21 and the top cover plate 10 not only avoids direct external force acting on the top cover plate 10 but also expands the force-bearing area, further decomposing the impact force. In summary, this technical solution, through reasonable structural design, achieves efficient buffering and protection of the top cover plate 10 under external impacts, improving the safety and durability of the battery pack top cover structure.

[0032] This embodiment provides an improved pedal 21 structure in the top cover structure of a battery pack. Specifically, the pedal 21 includes multiple connecting portions 211 and multiple supporting portions 212, which are alternately arranged along the length of the pedal 21. Each connecting portion 211 is fixedly connected to a bracket 22 to securely mount the pedal 21 onto the bracket 22, while each supporting portion 212 is spaced apart from the bracket 22, forming a buffer cavity 213 between the supporting portion 212 and the bracket 22. The buffer cavity 213 is a hollow structure that can undergo a certain amount of elastic deformation when subjected to external force, thereby absorbing and dispersing external impact force.

[0033] Through the above structural design, when the pedal 21 is subjected to external force or impact, the external force first acts on the bearing part 212. Since a buffer cavity 213 is reserved between the bearing part 212 and the bracket 22, the external force will cause the bearing part 212 to compress the buffer cavity 213 downwards. The deformation of the buffer cavity 213 can effectively absorb impact energy, reducing the degree to which force is directly transmitted to the bracket 22 and the top cover plate 10. At the same time, multiple alternately arranged connecting parts 211 ensure the overall structural strength and stability of the pedal 21, giving it both good load-bearing capacity and excellent cushioning effect.

[0034] This technical solution solves the technical problem in the prior art where the top cover structure has insufficient buffering capacity, is prone to deformation, or even damage when subjected to external forces by setting multiple alternating connecting parts 211 and bearing parts 212 on the pedal 21, and forming a buffer cavity 213 between the bearing parts 212 and the bracket 22. Specifically, the buffer cavity 213 significantly improves the energy absorption capacity of the structure, effectively prolonging the impact time and reducing the instantaneous impact force when an external impact occurs, thus protecting the internal structure and the safety of the battery. The alternating design of the connecting parts 211 and the bearing parts 212 balances structural strength and buffering performance, preventing deformation of the pedal 21 due to insufficient overall rigidity. In summary, this technical solution, through structural optimization, enables the battery pack top cover structure to have superior impact resistance and buffering performance, thereby improving the safety and reliability of the battery pack.

[0035] This embodiment provides a structural improvement to a foot pedal 21, wherein the supporting portion 212 of the foot pedal 21 includes a first plate 214 and a second plate 215. Specifically, the first plate 214 is the main load-bearing plate, and the second plates 215 are respectively provided at its opposite ends. One end of each second plate 215 is connected to the first plate 214, and the other end, i.e., the end away from the first plate 214, is connected to the connecting portion 211. Structurally, the second plate 215 and the first plate 214 form an included angle α, and the included angle ranges from 110° to 150°. Through this structural arrangement, the supporting portion 212 can generate appropriate elastic deformation under the action of external force, thereby achieving the absorption of impact force.

[0036] In practical use, external pressure is first applied to the first plate 214. Since the second plate 215 is connected to both ends of the first plate 214 at a certain angle, when it is impacted, the second plate 215 can expand or deform outward, assisting the first plate 214 in dispersing the external force. At the same time, each connecting part 211 firmly fixes the bearing part 212 to the bracket 22, ensuring the stability of the overall structure.

[0037] This technical solution effectively solves the technical problems of limited buffering capacity, stress concentration, and easy local deformation or damage of traditional top cover structures when subjected to external forces by designing a first plate 214 and second plates 215 at both ends of the load-bearing part 212, and setting the included angle between the second plate 215 and the first plate 214 to 110°≤α≤150°. Specifically, the larger included angle design allows the second plate 215 to have a larger elastic deformation space when subjected to force, and can deform appropriately when stepped on or impacted, thereby absorbing and dispersing external impact energy and reducing the risk of damage to the battery pack top cover and internal structure from instantaneous impact force.

[0038] Furthermore, the connection method between the connecting part 211 and the end of the second plate 215 furthest from the first plate 214 further improves the overall stress uniformity and deformation resistance of the bearing part 212. Multi-point stress distribution avoids damage to a single part due to excessive stress. While maintaining strength and stability, the overall structure greatly improves buffering performance, effectively protecting the top cover plate 10 and the internal structure of the battery pack. In summary, this technical solution, by optimizing the structure and angle parameters of the bearing part 212, significantly improves the impact resistance and safety of the top cover structure, thus achieving excellent buffering protection.

[0039] This embodiment relates to a structurally optimized pedal 21. The pedal 21 is provided with multiple reinforcing portions 216, and multiple pressure-relieving holes 217 are formed in the space between the support portion 212 and the bracket 22. Specifically, the pressure-relieving holes 217 are distributed in the space between the support portion 212 and the bracket 22, and are used to release air or pressure in this area when the pedal 21 is subjected to force, preventing local expansion or deformation caused by gas retention. Each pressure-relieving hole 217 is surrounded by a reinforcing portion 216, which are arranged in a ring shape and protrude relative to the surface of the support portion 212. The reinforcing portion 216 can be an integrally formed annular protrusion, or a polygonal or other shaped protrusion structure, its main function being to enhance the structural strength around the pressure-relieving hole 217. This design effectively prevents a decrease in the local stiffness of the support portion 212 due to the openings, thereby ensuring the overall mechanical performance and durability of the pedal 21. In actual use, when external pressure is applied to the pedal 21, the pressure relief hole 217 can release the gas in the cavity in time, reducing local pressure. At the same time, the reinforcing part 216 enhances the deformation resistance of the bearing part 212 at the pressure relief hole 217, avoiding damage caused by local stress concentration.

[0040] This technical solution successfully solves the problems in existing technologies, such as local expansion caused by the inability to release gas in a timely manner, and easy damage to the pedal 21 due to the weakening of structural strength caused by the openings, by setting pressure relief holes 217 in the space between the load-bearing part 212 and the bracket 22, and surrounding each pressure relief hole 217 with reinforcing parts 216. The reasonable distribution of pressure relief holes 217 allows the pedal 21 to quickly release pressure in the interval area when under force, effectively improving the cushioning performance and reducing the risk of structural deformation. At the same time, the protruding reinforcing parts 216 provide additional support and reinforcement around the pressure relief holes 217, greatly improving the local strength and overall durability of the load-bearing part 212. Through this structural optimization design, not only can the stress concentration caused by stepping be dispersed and reduced, but the safety and reliability of the pedal 21 are also improved. Thus, this technical solution achieves a synergistic improvement in the cushioning and pressure relief of the pedal 21 and the structural strength, achieving excellent cushioning protection and structural safety.

[0041] This embodiment provides a structural design for a first buffer assembly 20, as shown in the figure. The first buffer assembly 20 includes multiple buffer pads 23. The buffer pads 23 are made of silicone and possess good elasticity and cushioning performance. Multiple buffer pads 23 are disposed between the foot pedal 21 and the top cover plate 10, and are firmly connected to the foot pedal 21 by means of adhesion, snap-fit, or screw connection, while their upper surfaces are in direct contact with the top cover plate 10. Structurally, when external pressure is applied to the foot pedal 21, the foot pedal 21 transmits the externally applied force to the buffer pads 23. The buffer pads 23 undergo elastic deformation after being subjected to force, i.e., they are compressed, thereby absorbing and buffering part of the external force. The buffer pads 23 can rebound and recover after being compressed, maintaining a good cushioning effect. Because the buffer pads 23 are made of silicone, their elasticity and durability under long-term use are effectively guaranteed, and they are not easily deformed or damaged.

[0042] This technical solution effectively solves the problem in existing technologies where the pedal 21 directly impacts the top cover 10, making it susceptible to impact damage, by placing multiple silicone cushioning pads 23 between the pedal 21 and the top cover 10. Specifically, when the pedal 21 is subjected to force, the external force is first transmitted to the cushioning pads 23. Due to their excellent elasticity and compressibility, the cushioning pads 23 can absorb and disperse the impact force generated by stepping, significantly reducing the direct impact of external forces on the top cover 10, thereby effectively protecting the top cover 10 and extending its service life. At the same time, the distribution of multiple cushioning pads 23 also makes the cushioning effect more uniform, improving the overall cushioning and shock absorption performance of the structure. In summary, this technical solution, through optimized structural and material design, improves the shock absorption and protection capabilities of the cushioning components, effectively mitigates the impact on the top cover 10, and enhances the overall structural durability, thereby significantly improving the product's safety and user comfort.

[0043] This embodiment provides a top cover structure, which includes a top cover plate 10, a first buffer assembly 20 and an isolation plate 40, wherein the isolation plate 40 is disposed between the first buffer assembly 20 and the top cover plate 10, and the material of the isolation plate 40 is plastic.

[0044] In this embodiment, the isolation plate 40 is made of plastic material, which has excellent waterproof and chemical corrosion resistance. The isolation plate 40 effectively isolates the top cover plate 10 from the first buffer assembly 20, preventing external moisture or chemicals from penetrating and corroding the top cover plate 10 through the buffer assembly, thus extending the service life of the top cover plate 10. At the same time, the isolation plate 40 is lightweight, easy to assemble and maintain, and does not add extra burden to the overall structure.

[0045] This technical solution solves the problem in the prior art where the lifespan of the top cover plate 10 is easily reduced due to moisture penetration or chemical corrosion by adding a plastic isolation plate 40 between the first buffer assembly 20 and the top cover plate 10. The waterproof and chemical corrosion-resistant properties of the isolation plate 40 effectively block external moisture, liquids, and corrosive chemicals from eroding the top cover plate 10, significantly improving its durability and reliability. Therefore, the technical solution of this embodiment can significantly enhance the protective capability of the top cover structure, enabling the long-term safe and stable use of the top cover plate 10.

[0046] This embodiment provides a top cover structure, which includes a top cover plate 10 and an isolation plate 40. To achieve precise positioning and stable assembly of the two, a limiting structure is provided between the isolation plate 40 and the top cover plate 10. Specifically, either the isolation plate 40 or the top cover plate 10 is provided with a limiting groove, and the other is provided with a limiting protrusion that cooperates with the limiting groove. For example, in this embodiment, the isolation plate 40 has several limiting grooves, and the lower surface of the top cover plate 10 has corresponding limiting protrusions. During assembly, the top cover plate 10 is accurately positioned with the isolation plate 40 by inserting the limiting protrusions into the limiting grooves on the isolation plate 40, preventing relative misalignment and slippage.

[0047] The limiting groove and limiting protrusion can be elongated, rectangular, circular, or other shapes, and their specific shapes and dimensions can be designed according to actual needs. This mating structure enables rapid alignment and fixation of the partition plate 40 and the top cover plate 10, facilitating assembly and improving production efficiency.

[0048] This technical solution solves the technical problems of inaccurate positioning and misalignment during the assembly of the top cover plate 10 and the partition plate 40 in the prior art by setting a limiting groove and a limiting protrusion structure between the partition plate 40 and the top cover plate 10. The cooperation between the limiting groove and the limiting protrusion enables precise alignment of the two components, preventing misassembly and offset during assembly, and improving the overall structural stability and assembly efficiency. In addition, this structure simplifies the assembly process, reduces assembly difficulty, and is beneficial for mass production. Therefore, this technical solution effectively improves the assembly accuracy and reliability of the top cover structure through the limiting cooperation structure, achieving the technical effects of structural stability and convenient assembly.

[0049] Please see Figure 4 , Figure 4 This is a schematic diagram of the top cover structure provided in this application from a downward viewing angle.

[0050] This embodiment provides a top cover structure, such as Figure 4As shown, the system includes a top cover plate 10, a first buffer assembly 20, and a second buffer assembly 30. One side of the top cover plate 10 (facing the first buffer assembly 20) has an inwardly recessed receiving groove 101, which partially accommodates the second buffer assembly 30. The second buffer assembly 30 includes multiple foams arranged at predetermined intervals inside the receiving groove 101. Specifically, a certain depth is formed between the bottom and the opening of the receiving groove 101, and each foam is spaced apart within the receiving groove 101 along the length or width of the top cover plate 10. The height of each foam is approximately equal to the depth of the receiving groove 101. After installation, the upper surface of the foam is flush with or slightly higher than the opening of the receiving groove 101, exhibiting a slightly protruding state.

[0051] The above structure allows the foam to fit tightly against the protected component or cushioned object, and it is not easy for it to shift within the receiving groove 101. During installation, multiple foams are first placed in the receiving groove 101 in a spaced order, and then the top cover plate 10 and the first cushioning assembly 20 are assembled as a whole to ensure that the foam is in an effective cushioning and protective position within the top cover structure.

[0052] This technical solution solves the problems of poor fit, uneven cushioning effect, and easy displacement of foam in existing technologies by setting a recessed receiving groove 101 on the top cover plate 10 and arranging multiple foams at intervals within the receiving groove 101. The foams are flush with or slightly higher than the opening of the receiving groove 101, ensuring sufficient contact between the foams and the components to be protected or external stress surfaces, improving the energy absorption effect and enhancing resistance to impacts, compressions, and other external forces. Simultaneously, the spaced arrangement of the foams helps to disperse external forces, preventing concentrated pressure from causing localized damage and improving the overall durability and reliability of the structure. This technical solution achieves efficient cushioning, protection, and stable assembly of the top cover structure, resulting in improved overall product performance and extended service life.

[0053] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indicator will also change accordingly.

[0054] Furthermore, when an element is referred to as 'fixed to' or 'set on' another element, it may be directly attached to that element, or there may be other intervening elements between them. When an element is referred to as 'connected to' another element, it can be directly connected to the other element or indirectly connected to the other element through an intervening element.

[0055] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, the designation of features such as "first" and "second" can either explicitly express or imply the presence of at least one such feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A top cover structure, characterized in that, The top cover structure includes: a top cover plate, a first buffer component and a second buffer component, the first buffer component and the second buffer component are disposed on opposite sides of the top cover plate, the first buffer component has a buffering function and the second buffer component has a buffering function.

2. The top cover structure according to claim 1, characterized in that, The first buffer assembly includes a foot pedal and a bracket. The bracket is U-shaped, with one end connected to the top cover plate and the other end connected to the foot pedal. The foot pedal and the top cover plate are spaced apart.

3. The top cover structure according to claim 2, characterized in that, The pedal includes multiple connecting parts and multiple supporting parts, which are alternately arranged. The connecting parts are connected to the bracket, and the supporting parts are spaced apart from the bracket to form a buffer cavity.

4. The top cover structure according to claim 3, characterized in that, The supporting part includes a first plate and a second plate. The second plate is provided at opposite ends of the first plate. The connecting part is connected to the end of the second plate away from the first plate. The included angle between the second plate and the first plate is 110°≤α≤150°.

5. The top cover structure according to claim 3, characterized in that, The pedal includes multiple reinforcing parts, and the portion of the bearing part that is spaced from the bracket has multiple pressure relief holes. The reinforcing parts surround the pressure relief holes and protrude relative to the bearing part.

6. The top cover structure according to claim 2, characterized in that, The first cushioning component includes multiple cushioning pads, which are connected to the foot pedal and in contact with the top cover plate. The cushioning pads are made of silicone.

7. The top cover structure according to any one of claims 1-6, characterized in that, The top cover plate is recessed toward the first buffer assembly to form a receiving groove. The second buffer assembly includes a plurality of foams, which are spaced apart in the receiving groove. The foams are flush with or extend beyond the opening of the receiving groove.

8. The top cover structure according to any one of claims 1-6, characterized in that, The top cover structure also includes an isolation plate, which is disposed between the first buffer assembly and the top cover plate, and the isolation plate is made of plastic.

9. The top cover structure according to claim 8, characterized in that, One of the isolation plate and the top cover plate is provided with a limiting groove, and the other of the isolation plate and the top cover plate is provided with a limiting protrusion. The limiting groove and the limiting protrusion cooperate with each other.

10. A battery pack, characterized in that, The battery pack includes: a housing, individual batteries, and a top cover structure as described in any one of claims 1 to 9, wherein the individual batteries are disposed in the housing, and the top cover structure covers the housing.

Images