Electric cabin cover plate structure and battery pack

Abstract

The utility model discloses an electrical cabin cover plate structure and a battery pack, the electrical cabin cover plate structure comprises a cover plate body, and the cover plate body comprises an assembly surface used for being assembled with an electrical cabin and a free surface opposite to the assembly surface; a plurality of assembly holes penetrating through the assembly surface and the free surface are formed along the edge of the cover plate body; the cover plate body protrudes towards one side of the free surface to form a boss, and the boss is arranged to avoid the assembly hole. By adopting the design of the bosses, the bearing function of the cover plate body is improved, meanwhile, the bosses are arranged away from the assembly holes, assembly space can be provided for the screws, interference with the assembly process is avoided, the situation that the size space of the cover plate body is increased by the screws is avoided, and the volume efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to an electrical compartment cover plate structure and a battery pack. Background Art

[0002] In existing battery pack technology, the electrical compartment is an important part of the battery pack, which is used to accommodate and protect electrical components. In order to ensure the convenience of maintenance of the electrical compartment, a maintenance cover is usually set on the electrical compartment. However, there are some problems with the design of the traditional electrical compartment maintenance cover, which limits the overall performance of the battery pack.

[0003] Specifically, the traditional electrical compartment maintenance cover is usually a flat plate structure, which makes it weak in load-bearing function. In order to meet the higher load-bearing requirements of the electrical compartment, the maintenance cover often needs to be thicker, which undoubtedly increases the weight of the battery pack. In today's pursuit of lightweight battery packs, this design obviously does not meet market demand.

[0004] In addition, the traditional electrical compartment maintenance cover needs to be locked with fasteners such as screws. These screws increase the overall height of the electrical compartment maintenance cover. As the height of the electrical compartment maintenance cover increases, the overall size of the battery pack will also increase accordingly, which not only affects the volume of the battery pack, but may also cause inconvenience to the layout and installation of the battery pack. Utility Model Content

[0005] In order to overcome at least one of the defects of the prior art, the utility model provides an electrical compartment cover plate structure and a battery pack, which can solve the problems of insufficient load-bearing function, heavy weight and increased battery pack size and space in traditional electrical compartment maintenance covers.

[0006] The technical solution adopted by the utility model to solve the problem is:

[0007] An electrical compartment cover structure includes a cover body, the cover body including an assembly surface for assembly with the electrical compartment and a free surface opposite to the assembly surface; the cover body is provided with a plurality of assembly holes penetrating the assembly surface and the free surface along the edge; the cover body protrudes toward one side of the free surface to form a boss, and the boss is arranged to avoid the assembly hole.

[0008] By adopting the above scheme and the boss design, the load-bearing function of the cover body itself is improved. At the same time, the boss is set away from the assembly hole, which can provide assembly space for the screws and avoid interference with the assembly process. This helps to prevent the screws from increasing the size of the cover body and improve volume efficiency.

[0009] Furthermore, the boss forms a groove on the assembly surface of the cover body, and a plurality of reinforcing ribs are arranged in the groove, and the height of the reinforcing ribs is not greater than the depth of the groove.

[0010] By adopting the above solution, the presence of the groove not only provides installation space for the reinforcing ribs, but also reduces the overall weight of the cover plate, which is in line with the trend of lightweight design. At the same time, the reinforcing ribs can improve the anti-twisting performance of the cover plate and prevent deformation when subjected to external forces. In addition, the alignment of the reinforcing ribs with the assembly surface is also conducive to improving assembly accuracy and stability. During the assembly process, the assembly surface is in closer contact with other components, reducing the assembly gap and improving the stability of the overall structure.

[0011] Further, the reinforcing ribs are arranged along the length direction of the cover plate body, and / or the reinforcing ribs are arranged along the width direction of the cover plate body, and / or the reinforcing ribs are arranged in a staggered manner.

[0012] By adopting the above solution, one or more reinforcing rib arrangements can be carried out according to the actual application scenario to solve the stress conditions in the corresponding direction or multiple directions, which helps to extend the service life of the cover body.

[0013] Furthermore, the boss includes at least two sub-bosses, and a partition groove is formed between the sub-bosses.

[0014] By adopting the above solution, this division not only increases the complexity and functionality of the boss, but also improves its structural strength and stability. The sub-bosses can each bear different functions or forces, making the entire boss more adaptable to complex working environments. At the same time, the presence of the partition groove also reduces the use of materials, which helps to achieve a lightweight design of the cover.

[0015] Furthermore, the groove includes at least two sub-grooves, and a partition beam is formed between the sub-grooves.

[0016] By adopting the above solution, the complexity and functionality of the groove are also increased, and its structural strength and stability are improved.

[0017] Furthermore, when the number of sub-bosses on the cover body is more than two, the area of ​​each sub-boss gradually increases from one end to the other end of the cover body, and when the number of sub-grooves on the cover body is more than two, the area of ​​each sub-groove gradually increases from one end to the other end of the cover body.

[0018] By adopting the above solution, the design of the partition beams and sub-grooves also optimizes the mechanical distribution of the cover plate. They can be used with reinforcing ribs to disperse forces from different directions, reduce stress concentration, and thus improve the cover plate's ability to resist compression, distortion, and impact.

[0019] Further, the boss and the assembly hole are arranged at a distance, and / or the assembly hole is arranged on the boss, and the boss is provided with an avoidance groove along the circumference of the assembly hole.

[0020] By adopting the above solution, the avoidance groove provides sufficient operating space for assembly tools or fasteners such as screws, so that the screws do not protrude from the cover body after being locked, and the height of the cover is not increased. During the assembly process, the assembly tool can smoothly enter the assembly hole to complete the installation of the fastener. The design of the avoidance groove avoids the assembly difficulties caused by space limitations and improves the accuracy and efficiency of assembly. The avoidance groove also helps to reduce the weight of the cover. By reasonably designing the shape and size of the avoidance groove, it is possible to reduce unnecessary material use while ensuring structural strength, thereby achieving lightweight cover.

[0021] Furthermore, the depth of the avoidance groove is not greater than the distance between the free surface and the boss.

[0022] By adopting the above scheme, when subjected to external forces, the aligned avoidance grooves can more effectively disperse and withstand these forces, preventing structural damage caused by stress concentration. This enhances the compression, distortion and impact resistance of the cover plate and improves its overall performance.

[0023] A battery pack includes a battery frame, a battery cover, a battery module and an electrical compartment cover structure, wherein the battery frame has an electrical compartment and a battery cell cavity with an open top surface, the battery module is assembled in the battery cell cavity, the battery cover is arranged on the battery cell cavity, the cover body is arranged on the electrical compartment, and the assembly surface of the cover body faces the electrical compartment.

[0024] By adopting the above solution, the setting of the electrical compartment cover structure not only provides protection for the electrical components, but also enhances the overall structural strength of the battery pack through its special design. The assembly surface cover is set in the electrical compartment, so that the electrical components can be firmly installed in the battery pack, and it also facilitates electrical connection and wiring. The introduction of design elements such as bosses, grooves, reinforcing ribs, partition grooves and avoidance grooves further optimizes the performance of the electrical compartment cover structure and improves its load-bearing capacity, stability and assembly efficiency.

[0025] Furthermore, a plurality of support members are provided between the bottom compartment wall of the electrical compartment and the cover body, and the support members are abutted against the partition beams of the cover body.

[0026] By adopting the above solution, the presence of the support member provides stable support for the cover body and ensures the stable installation of the cover on the electrical compartment. Through the abutment of the support member, the pressure on the cover can be effectively dispersed to prevent deformation or damage caused by uneven force. This not only enhances the structural strength of the cover, but also improves the overall stability of the battery pack. The design of the support member abutting on the partition beam further optimizes the support effect. As part of the cover body, the partition beam has high structural strength and stability. The abutment of the support member and the partition beam can make full use of the load-bearing capacity of the partition beam to achieve more effective support. This design not only simplifies the support structure, but also improves the support efficiency.

[0027] In summary, the electrical compartment cover structure and battery pack provided by the utility model have the following technical effects:

[0028] 1. By setting a boss on the free surface of the cover body, it can effectively withstand the pressure from the outside of the electrical compartment, thereby enhancing the overall load-bearing capacity and stability. This helps prevent deformation, damage or failure caused by insufficient structural strength, and improves the safety and reliability of the battery pack;

[0029] 2. The boss avoids the setting of assembly holes to prevent screws and other fasteners from increasing the overall height of the cover body, reducing the overall size of the battery pack and achieving the design goal of lightweight battery packs. Through standardized hole positions and structural design, the assembly work is more convenient and accurate, and the assembly efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a partially disassembled structure of a battery pack according to an embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of the free surface structure of the cover plate body of Example 1 of the utility model;

[0032] Figure 3 This is a schematic diagram of the assembly surface structure of the cover plate body of Example 1 of the utility model;

[0033] Figure 4 This is a schematic diagram of the free surface structure of the cover plate body of Example 2 of the utility model;

[0034] Figure 5 This is a schematic diagram of the assembly surface structure of the cover plate body of Example 2 of the utility model;

[0035] Figure 6 The figure is a schematic diagram of the free surface structure of a cover plate body according to an embodiment of the utility model.

[0036] Among them, the meanings of the figure marks are as follows: 1. Cover body; 11. Assembly surface; 12. Free surface; 13. Assembly hole; 14. Assembly edge; 15. Avoidance groove; 2. Boss; 21. Sub-boss; 22. Partition groove; 3. Groove; 31. Reinforcement rib; 32. Sub-groove; 33. Partition beam; 4. Battery frame; 41. Electrical compartment; 42. Battery cell cavity; 5. Battery module; 6. Support member. DETAILED DESCRIPTION

[0037] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the accompanying drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In order to facilitate the understanding of the embodiments of the present utility model, the following will be further explained by taking specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0039] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0041] The embodiments of the present invention refer to Figure 1-Figure 6, discloses an electrical compartment cover structure, including a cover body 1, the cover body 1 including an assembly surface 11 for assembling with a battery compartment 41 and a free surface 12 opposite to the assembly surface 11; the cover body 1 is provided with a plurality of assembly holes 13 penetrating the assembly surface 11 and the free surface 12 along the edge; the cover body 1 protrudes to one side of the free surface 12 to form a boss 2, the boss 2 is arranged to avoid the assembly hole 13, and the load-bearing function of the cover body 1 itself is improved by adopting the boss 2 design, and at the same time, the boss 2 is arranged to avoid the assembly hole 13, that is, the boss 2 is arranged to be spaced apart from the assembly hole 13, which can provide assembly space for the screws, avoid interference with the assembly process, help to avoid the screws increasing the size space of the cover body 1, and improve the volume efficiency.

[0042] Embodiment 1 of the present utility model is referred to Figure 2-3 As shown, a gap is reserved between the boss 2 and the edge of the cover body 1 to form an assembly edge 14, and the assembly holes 13 are arranged at equal intervals in the assembly edge 14 of the cover body 1; the boss 2 forms a groove 3 on the assembly surface 11 of the cover body 1, and a plurality of reinforcing ribs 31 are arranged in the groove 3. The height of the reinforcing rib 31 is not greater than the depth of the groove 3. Preferably, the height of the reinforcing rib 31 is consistent with the depth of the groove 3. The existence of the groove 3 not only provides installation space for the reinforcing rib 31, but also can reduce the overall weight of the cover, which is in line with the trend of lightweight design. At the same time, the reinforcing rib 31 can improve the anti-twisting performance of the cover and prevent deformation when subjected to external force. In addition, the alignment of the reinforcing rib 31 with the assembly surface 11 is also conducive to improving assembly accuracy and stability. During the assembly process, the assembly surface 11 is in closer contact with other components, which reduces the assembly gap and improves the stability of the overall structure.

[0043] Preferably, the reinforcing ribs 31 are arranged along the length direction of the cover body 1, and / or the reinforcing ribs 31 are arranged along the width direction of the cover body 1, and / or the reinforcing ribs 31 are arranged in a staggered manner. One or more arrangements of the reinforcing ribs 31 can be performed according to the actual application scenario to solve the stress conditions in the corresponding direction or multiple directions, which helps to extend the service life of the cover body 1. In this embodiment 1, refer to Figure 3 As shown, the reinforcing ribs 31 include two types, one along the length direction of the cover plate body 1 and the other along the width direction of the cover plate body 1, forming a horizontally and vertically staggered supporting structure.

[0044] Optional, see Figure 2As shown, the boss 2 includes at least two sub-bosses 21, and a partition groove 22 is formed between the sub-bosses 21. In this embodiment 1, two partition grooves 22 are provided, and the boss 2 is divided into three sub-bosses 21. This division not only increases the complexity and functionality of the boss 2, but also improves its structural strength and stability. The sub-bosses 21 can respectively assume different functions or forces, so that the entire boss 2 is more adaptable to complex working environments. At the same time, the presence of the partition groove 22 also reduces the use of materials, which helps to achieve a lightweight design of the cover plate.

[0045] Optional, see Figure 3 As shown, the groove 3 includes at least two sub-grooves 32, and a partition beam 33 is formed between the sub-grooves 32. In this embodiment 1, two partition beams 33 are provided, and the groove 3 is divided into three sub-grooves 32. This division not only increases the complexity and functionality of the groove 3, but also improves its structural strength and stability.

[0046] It should be noted that the partition groove 22 and the partition beam 33 can exist separately or simultaneously. At the same time, screw holes can be provided on the partition groove 22 and the partition beam 33 to penetrate screws to achieve assembly and fixing effect.

[0047] When the number of sub-bosses 21 on the cover body 1 is more than two, the area of ​​each sub-boss 21 gradually increases from one end to the other end of the cover body 1. When the number of sub-grooves 32 on the cover body 1 is more than two, the area of ​​each sub-groove 32 gradually increases from one end to the other end of the cover body 1. The area change trend of the sub-groove 32 can be the same as that of the sub-boss 21, and each sub-boss 21 corresponds to each sub-groove 32 one by one. Of course, in some embodiments, the change trends of the two can also be different, or one end of the sub-boss 21 can gradually increase, and the other end can increase between the ends of the sub-groove 32. In this embodiment 1, the partition groove 22 and the partition beam 33 exist at the same time, and the number is 3, so that the area of ​​each sub-groove 32 and sub-boss 21 can achieve a gradually increasing effect. The design of the partition beam 33 and the sub-groove 32 also optimizes the mechanical distribution of the cover. They can be used together with the reinforcing ribs 31 to disperse forces from different directions and reduce stress concentration, thereby improving the compression, torsion and impact resistance of the cover plate.

[0048] Embodiment 2 of the present utility model is referred to Figure 4-5As shown, the assembly hole 13 is arranged on the boss 2, and the boss 2 is provided with an avoidance groove 15 along the circumference of the assembly hole 13. The groove depth of the avoidance groove 15 is not greater than the distance between the free surface 12 and the boss 2. Preferably, the groove depth of the avoidance groove 15 is equal to the distance between the free surface 12 and the boss 2. When subjected to external forces, the avoidance groove 15 and the free surface 12 are located in the same plane, which can more effectively disperse and withstand these forces and prevent structural damage caused by stress concentration. The avoidance groove 15 is connected to the edge of the cover body 1, so that the avoidance groove 15 is U-shaped, and the area of ​​the avoidance groove 15 plus the area of ​​the boss 2 is equivalent to the area of ​​the free surface 12 of the cover body 1. The assembly surface 11 is provided with a groove 3 corresponding to the boss 2, and the area of ​​the groove 3 is smaller than the boss 2, so that the assembly holes 13 are all located outside the edge of the groove 3. A number of reinforcing ribs 31 are provided in the groove 3, and the height of the reinforcing rib 31 is not greater than the depth of the groove 3. The reinforcing ribs 31 are arranged along the length direction of the cover body 1, and / or the reinforcing ribs 31 are arranged along the width direction of the cover body 1, and / or the reinforcing ribs 31 are arranged in an interlaced manner. One or more arrangements of the reinforcing ribs 31 can be performed according to the actual application scenario to solve the force conditions in the corresponding direction or multiple directions. In the present embodiment 2, the reinforcing ribs 31 are arranged radially along the geometric center of the groove 3, and a truncated cone or annulus is provided at the midpoint of the groove 3 to support and connect the reinforcing ribs 31.

[0049] Optional, see Figure 4 As shown, a partition groove 22 is provided on the boss 2, and the partition groove 22 divides the boss 2 into at least two sub-bosses 21. In this embodiment 2, two partition grooves 22 are provided, and the boss 2 is divided into three sub-bosses 21. This division not only increases the complexity and functionality of the boss 2, but also improves its structural strength and stability. The sub-bosses 21 can respectively assume different functions or forces, so that the entire boss 2 is more adaptable to complex working environments. At the same time, the presence of the partition groove 22 also reduces the use of materials, which helps to achieve a lightweight design of the cover plate.

[0050] Optional, see Figure 5 As shown, the groove 3 is provided with a partition beam 33 corresponding to the partition groove 22, and the partition beam 33 divides the groove 3 into at least two sub-grooves 32. In this embodiment 2, two partition beams 33 are provided, and the groove 3 is divided into three sub-grooves 32. This division not only increases the complexity and functionality of the groove 3, but also improves its structural strength and stability.

[0051] In some embodiments, see Figure 6 As shown, the design of the top surface partition groove 22 can be omitted to improve the flatness and strength of the boss 2.

[0052] The utility model also relates to a battery pack, see Figure 1As shown, it includes a battery frame 4, a battery cover, a battery module 5 and an electrical compartment cover structure. The battery frame 4 has an electrical compartment 41 with an open top surface and a battery cell cavity 42. The battery module 5 is assembled in the battery cell cavity 42. The battery cover is set on the battery cell cavity 42. The cover body is set on the electrical compartment 41. The assembly surface 11 of the cover body 1 faces the electrical compartment 41. This arrangement not only provides protection for the electrical components, but also enhances the overall structural strength of the battery pack through its special design. The assembly surface 11 is set on the electrical compartment 41, so that the electrical components can be stably installed in the battery pack, and it also facilitates electrical connection and wiring. The introduction of design elements such as bosses 2, grooves 3, reinforcing ribs 31, partition grooves 22 and avoidance grooves 15 further optimizes the performance of the electrical compartment cover structure and improves its load-bearing capacity, stability and assembly efficiency.

[0053] Furthermore, a number of support members 6 are provided between the bottom compartment wall of the electrical compartment 41 and the cover body 1, and the support members 6 abut against the partition beam 33 of the cover body 1. The support members 6 include but are not limited to support structures such as screws, studs, longitudinal support rods, support beams, etc., which are not specifically limited in this embodiment. The presence of the support members 6 provides stable support for the cover body 1, ensuring the stable installation of the cover on the electrical compartment 41. Through the abutment of the support members 6, the pressure on the cover can be effectively dispersed to prevent deformation or damage caused by uneven force. This not only enhances the structural strength of the cover, but also improves the overall stability of the battery pack. The design of the support member 6 abutting against the partition beam 33 further optimizes the support effect. As a part of the cover body 1, the partition beam 33 has high structural strength and stability. The abutment of the support member 6 and the partition beam 33 can make full use of the load-bearing capacity of the partition beam 33 to achieve more effective support. This design not only simplifies the support structure, but also improves the support efficiency.

[0054] In summary, the electrical compartment cover structure and battery pack provided by the utility model have the following technical effects:

[0055] 1. By providing a boss 2 on the free surface 12 of the cover body 1, it can effectively withstand the pressure from outside the electrical compartment, thereby enhancing the overall load-bearing capacity and stability. This helps prevent deformation, damage or failure caused by insufficient structural strength, and improves the safety and reliability of the battery pack;

[0056] 2. The boss 2 is arranged to avoid the assembly hole 13, so as to prevent screws and other fasteners from increasing the overall height of the cover body 1, thereby reducing the overall size of the battery pack. Through standardized hole positions and structural design, the assembly work is made more convenient and accurate, thereby improving the assembly efficiency.

[0057] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. An electrical compartment cover structure, characterized in that: The cover plate body (1) comprises a mounting surface (11) for mounting with an electrical compartment (41) and a free surface (12) opposite to the mounting surface (11); The cover plate body (1) is provided with a plurality of assembly holes (13) along the edge thereof, which penetrate the assembly surface (11) and the free surface (12); The cover plate body (1) protrudes toward one side of the free surface (12) to form a boss (2), and the boss (2) is arranged to avoid the assembly hole (13).

2. The electrical compartment cover structure according to claim 1, characterized in that: The boss (2) is formed with a groove (3) on the assembly surface (11) of the cover plate body (1), and a plurality of reinforcing ribs (31) are arranged in the groove (3), and the height of the reinforcing ribs (31) is not greater than the depth of the groove (3).

3. The electrical compartment cover structure according to claim 2, characterized in that: The reinforcing ribs (31) are arranged along the length direction of the cover plate body (1), and / or the reinforcing ribs (31) are arranged along the width direction of the cover plate body (1), and / or the reinforcing ribs (31) are arranged in a staggered manner.

4. The electrical compartment cover structure according to claim 2, characterized in that: The boss comprises at least two sub-bosses (21), and a partition groove (22) is formed between the sub-bosses (21).

5. The electrical compartment cover structure according to claim 4, characterized in that: The groove (3) comprises at least two sub-grooves (32), and a partition beam (33) is formed between the sub-grooves (32).

6. The electrical compartment cover structure according to claim 5, characterized in that: When the number of sub-protrusions (21) on the cover plate body (1) is more than two, the area of ​​each sub-protrusion (21) gradually increases from one end to the other end of the cover plate body (1); and when the number of sub-grooves (32) on the cover plate body (1) is more than two, the area of ​​each sub-groove (32) gradually increases from one end to the other end of the cover plate body (1).

7. An electrical compartment cover structure according to any one of claims 1 to 6, characterized in that: The boss (2) and the assembly hole (13) are arranged at intervals, and / or the assembly hole (13) is arranged on the boss (2), and the boss (2) is provided with an avoidance groove (15) along the circumference of the assembly hole (13).

8. The electrical compartment cover structure according to claim 7, characterized in that: The groove depth of the avoidance groove (15) is no greater than the distance between the free surface (12) and the boss (2).

9. A battery pack, characterized in that: It comprises a battery frame (4), a battery cover, a battery module (5) and an electrical compartment cover structure as described in any one of claims 1 to 8, wherein the battery frame (4) has an electrical compartment (41) with an open top surface and a battery cell cavity (42), the battery module (5) is assembled in the battery cell cavity (42), the battery cover is arranged on the battery cell cavity (42), the cover body is arranged on the electrical compartment (41), and the assembly surface (11) of the cover body (1) faces the electrical compartment (41).

10. A battery pack according to claim 9, characterized in that: A plurality of support members (6) are arranged between the bottom wall of the electrical compartment (41) and the cover body (1), and the support members (6) are abutted against the partition beam (33) of the cover body (1).

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