Lifting lug structure for battery steel box body and battery box body

Abstract

The utility model discloses a lifting lug structure for a battery steel box body and the battery box body, and relates to the technical field of battery steel box bodies. The lifting lug specifically comprises a lifting lug body which can be connected to a battery steel box body, and at least two lifting points are arranged on the lifting lug body; the hanging sleeve is connected to the hanging point and is connected with the hanging piece; and the reinforcing piece is arranged on the outer side wall of the lifting lug body and used for improving the structural strength of the lifting lug body. The positioning times and procedures of the lifting lug structure are reduced, the risk of tolerance accumulation is reduced, and meanwhile the structural strength of the lifting lug structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery steel boxes, and particularly relates to a lug structure and a battery box for a battery steel box. Background Art

[0002] In recent years, with the rapid development of the new energy vehicle industry, as the core component of new energy vehicles, the design and manufacturing technology of power battery packs has received extensive attention. The power battery pack is not only an important part of electric vehicles, but also directly affects the performance, safety and reliability of the whole vehicle. As the core component of the power battery pack, the dimensional accuracy requirements of the battery box are getting higher and higher. Especially the lug structure, as the link for installing the battery pack on the vehicle body, the dimensional consistency directly relates to the safe use of the battery pack.

[0003] In the traditional design of steel boxes, the lug installation points are usually designed independently. This design often requires multiple processes and multiple positionings in actual manufacturing. The installation points of the lug structure generally consist of 8 - 10, and for larger battery packs, the number of lug installation points is even more. Since the lug structure is an important part for installing the battery pack, its dimensional accuracy and consistency requirements are very high. However, the manufacturing method of multiple processes and multiple positionings is prone to tolerance accumulation, thus affecting the dimensional consistency of the lug structure. In addition, this manufacturing method also has disadvantages such as high fixture cost and low welding efficiency.

[0004] To solve the above technical problems, the prior art discloses a lug structure, which includes a lug body. Multiple lifting points are provided on the lug body, and a reinforcing member is installed inside the lifting points to improve the stability of the lifting points. Although it can reduce the number of positionings and processes of the lug structure and reduce the risk of tolerance accumulation, its structural strength is low, and it is prone to deformation during the hoisting process, greatly affecting the stability of the lug during operation.

[0005] Therefore, how to reduce the number of positionings and processes of the lug structure to reduce the risk of tolerance accumulation, and at the same time improve the structural strength of the lug structure has become an urgent technical problem to be solved. Content of the Utility Model

[0006] The main purpose of the present utility model is to provide a lug structure and a battery box for a battery steel box, aiming to reduce the number of positionings and processes of the lug structure to reduce the risk of tolerance accumulation, and at the same time improve the structural strength of the lug structure.

[0007] To achieve the above purpose, the present utility model proposes a lug structure for a battery steel box, including:

[0008] A lug body, which can be connected to the battery steel box, and at least two lifting points are provided on the lug body; and

[0009] A mounting sleeve, connected to the suspension point and connected to the mounting member; and

[0010] A reinforcing member, provided on the outer side wall of the lug body, for improving the structural strength of the lug body.

[0011] The design of the lug body and the mounting sleeve ensures the position and dimensional accuracy of the suspension point, thereby ensuring the installation accuracy of the lug body on the battery steel box body. High-precision installation can effectively avoid the problem of tolerance accumulation, improve the dimensional consistency of the lug structure of the battery steel box body, and thus improve the overall installation quality and safety. The modular design of the lug body and the mounting sleeve simplifies the manufacturing and assembly processes. The modular design can reduce the manufacturing processes and the number of positioning times, thereby reducing the manufacturing cost and improving the production efficiency. The reinforcing member is made of a high-strength material and can significantly improve the overall strength of the lug body. It can make the lug body more robust when bearing heavy loads and impacts, reduce the risk of deformation and fracture, and thus improve the safety and reliability of the battery steel box body. The reinforcing member can effectively disperse and absorb vibrations and stresses, reducing the stress concentration phenomenon. By reducing stress concentration, the reinforcing member can improve the fatigue resistance of the lug body, extend its service life, and reduce the risk of fatigue damage caused by long-term use.

[0012] In an embodiment of the present application, the lug body is Z-shaped.

[0013] The Z-shaped structure has natural mechanical stability and anti-deformation ability. Compared with a straight-line or simple L-shaped structure, the Z-shaped design can more effectively disperse and bear stresses and loads from different directions. It can significantly improve the strength and stability of the lug body, ensuring that it is not easily deformed or damaged under load and impact conditions, and thus improving the overall reliability of the battery steel box body. At the same time, the Z-shaped structure provides multiple contact surfaces and connection points, making the connection between the lug body and the battery steel box body more firm. The multiple contact surfaces and connection points can effectively disperse the load, reduce the stress concentration at a single connection point, and thus improve the firmness and durability of the connection.

[0014] In an embodiment of the present application, the reinforcing members correspond one by one to the suspension point positions on the lug body. The reinforcing members are provided with through holes, the through holes have the same size as the suspension points and their central axes coincide with each other. The mounting sleeve can pass through the suspension point and the through hole in sequence. When the mounting sleeve passes through the suspension point and the through hole in sequence, limiting portions are formed at both ends of the mounting sleeve to limit the movement of the mounting sleeve between the suspension point and the through hole.

[0015] The through-holes and the suspension points have the same size and their central axes coincide with each other, ensuring the precise alignment of the mounting sleeve and improving the accuracy and stability of installation. The design of the limiting parts at both ends of the mounting sleeve effectively prevents its movement between the suspension points and the through-holes, ensuring the tight connection between various components and reducing the possibility of loosening. The mounting sleeve is connected to the reinforcing member and the lug body, further enhancing the strength of the mounting sleeve and improving its stability during operation.

[0016] In an embodiment of the present application, the reinforcing member is Z-shaped, and the middle part of the Z-shaped reinforcing member near the lug body is recessed inward, so that reinforcing ribs are formed on both sides.

[0017] The Z-shaped structure itself has high bending and torsional resistance capabilities. By forming reinforcing ribs through inward recessing in the middle part, the rigidity and strength of the reinforcing member can be further improved, making it not easily deformed when bearing external forces.

[0018] In an embodiment of the present application, a first weight-reducing hole is provided on the reinforcing member.

[0019] The provision of the first weight-reducing hole 31 reduces the use of materials, thereby reducing the overall weight of the reinforcing member. It is possible to reduce the use of materials while ensuring the structural strength, reduce the production cost, and improve the material utilization rate. [[ID=!4]]

[0020] In an embodiment of the present application, there are three groups of suspension points. The number of the first group is two, the number of the second group is one, and the number of the third group is two.

[0021] The design of the three groups of suspension points can provide multiple fixing points, making the connection between the reinforcing member and the lug body more firm. Each of the first group and the third group has two suspension points, increasing the connection stability and torsional resistance. The multiple groups of suspension points can disperse the external force to multiple points, reduce the stress borne by a single hole, and reduce the stress concentration phenomenon, thereby improving the durability and reliability of the overall structure.

[0022] In an embodiment of the present application, second weight-reducing holes are provided at the positions on the lug body corresponding to the reinforcing member.

[0023] The provision of the second weight-reducing holes reduces the use of materials, thereby reducing the overall weight of the lug body. It is possible to reduce the use of materials while ensuring the structural strength, reduce the production cost, and improve the material utilization rate.

[0024] In an embodiment of the present application, a depression is formed at the position between any two adjacent second weight-reducing holes on the lug body along the direction from the outside to the inside of the lug body.

[0025] The recess is formed by stamping. Forming a recess design on the lug body by stamping can optimize the stress distribution, reduce the stress concentration phenomenon, and thus improve the strength and rigidity of the lug body.

[0026] In an embodiment of the present application, a reinforcing cross beam is provided inside the lug body.

[0027] The reinforcing cross beam can significantly improve the overall strength of the lug body, making it not easily deformed or broken when bearing heavy loads, and ensuring the stability and safety of the structure. The reinforcing cross beam can increase the rigidity of the lug body, reduce the bending and torsional deformation that may occur during use, and improve the durability and reliability of the lug.

[0028] The present application also discloses a battery steel box body, including a steel box body main body, and a lug structure for the battery steel box body as described in any one of the above is connected to the steel box body main body.

[0029] Adopting the above technical solutions, the designs of the lug body and the mounting sleeve ensure the position and dimensional accuracy of the lifting point, thus ensuring the installation accuracy of the lug body on the battery steel box body. High-precision installation can effectively avoid the problem of tolerance accumulation, improve the dimensional consistency of the lug structure of the battery steel box body, and thus improve the overall installation quality and safety. The modular designs of the lug body and the mounting sleeve simplify the manufacturing and assembly processes. The modular design can reduce the manufacturing processes and the number of positioning times, thereby reducing the manufacturing cost and improving the production efficiency. The reinforcing member is made of a high-strength material, which can significantly improve the overall strength of the lug body. It can make the lug body more solid when bearing heavy loads and impacts, reduce the risk of deformation and fracture, and thus improve the safety and reliability of the battery steel box body. The reinforcing member can effectively disperse and absorb vibrations and stresses, reducing the stress concentration phenomenon. By reducing the stress concentration, the reinforcing member can improve the fatigue resistance of the lug body, extend its service life, and reduce the risk of fatigue failure caused by long-term use. Description of the Drawings

[0030] The following combines specific embodiments and drawings to elaborate on the present utility model, where:

[0031] Figure 1 is a schematic structural diagram of the first embodiment of the present utility model;

[0032] 10. Lug body; 20. Mounting sleeve; 21. Limiting portion; 30. Reinforcing member; 31. First weight reduction hole; 40. Reinforcing cross beam. Detailed Embodiment

[0033] To make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following specific embodiments are only used to explain the present utility model and do not constitute a limitation to the present utility model.

[0034] As Figure 1 shown, to achieve the above object, the present utility model provides a lug structure for a battery steel box body, including:

[0035] A lug body 10, which can be connected to the battery steel box body, and at least two lifting points are provided on the lug body 10; and

[0036] A mounting sleeve, connected to the lifting point and connected to a mounting member; and

[0037] A reinforcing member 30, provided on the outer side wall of the lug body 10, for improving the structural strength of the lug body 10.

[0038] Specifically, the lug body 10 is the core part of the whole structure, made of high-strength materials, such as high-strength steel or aluminum alloy materials. High-strength steel has excellent mechanical properties and wear resistance, while aluminum alloy materials have light weight and good corrosion resistance. To ensure its stability and durability under load. At least two lifting points are provided on the lug body 10 for connecting the mounting sleeve 20.

[0039] The lug body 10 and the battery steel box body are connected by welding. Using the welding method can improve the connection strength between the lug body 10 and the battery steel box body. Of course, according to the design requirements, the lug body 10 and the battery steel box body can also be connected in a detachable manner, such as screw connection, bolt connection, etc. Using the detachable connection method is convenient for the installation and disassembly of the lug body 10 and is convenient for later maintenance.

[0040] The mounting sleeve 20 is an intermediate component for connecting the lug body 10 and the mounting member. The mounting sleeve 20 is connected inside the lifting point. When hoisting is required, the mounting member is connected to the mounting sleeve 20 to achieve hoisting.

[0041] The reinforcing member 30 is provided on the outer side wall of the lug body 10, and the reinforcing member 30 and the lug body 10 are connected in a detachable manner, such as screw connection, bolt connection, etc., which is convenient for the installation and disassembly of the reinforcing member 30.

[0042] Adopting the above technical solution, the design of the lug body 10 and the mounting sleeve 20 ensures the position and dimensional accuracy of the lifting point, thereby guaranteeing the installation accuracy of the lug body 10 on the battery steel box body. High-precision installation can effectively avoid the problem of tolerance accumulation, improve the dimensional consistency of the lug structure of the battery steel box body, and thus improve the overall installation quality and safety. The modular design of the lug body 10 and the mounting sleeve 20 simplifies the manufacturing and assembly processes. The modular design can reduce the manufacturing processes and the number of positioning times, thereby reducing the manufacturing cost and improving the production efficiency. The reinforcing member 30 is made of high-strength material, which can significantly improve the overall strength of the lug body 10. It can make the lug body 10 more robust when bearing heavy loads and impacts, reduce the risk of deformation and fracture, and thus improve the safety and reliability of the battery steel box body. The reinforcing member 30 can effectively disperse and absorb vibrations and stresses, reducing the stress concentration phenomenon. By reducing stress concentration, the reinforcing member 30 can improve the fatigue resistance of the lug body 10, extend its service life, and reduce the risk of fatigue failure caused by long-term use.

[0043] In an embodiment of the present application, the lug body 10 is Z-shaped.

[0044] Adopting the above technical solution, the Z-shaped structure has natural mechanical stability and anti-deformation ability. Compared with a straight or simple L-shaped structure, the Z-shaped design can more effectively disperse and bear stresses and loads from different directions. It can significantly improve the strength and stability of the lug body 10, ensuring that it is not easily deformed or damaged under load and impact conditions, and thus improving the overall reliability of the battery steel box body. At the same time, the Z-shaped structure provides multiple contact surfaces and connection points, making the connection between the lug body 10 and the battery steel box body more firm. The multiple contact surfaces and connection points can effectively disperse the load, reduce the stress concentration at a single connection point, and thus improve the firmness and durability of the connection.

[0045] In an embodiment of the present application, the reinforcing member 30 corresponds to the lifting point position on the lug body 10 one by one. The reinforcing member 30 is provided with through holes, and the through holes have the same size as the lifting points and their central axes coincide with each other. The mounting sleeve 20 can pass through the lifting point and the through hole in sequence. When the mounting sleeve 20 passes through the lifting point and the through hole in sequence, limiting portions 21 are formed at both ends of the mounting sleeve to limit the movement of the mounting sleeve 20 between the lifting point and the through hole.

[0046] Specifically, the reinforcing member 30 is provided with through holes, and the size of the through holes is the same as that of the lifting points on the lifting lug body 10. The lifting points on the lifting lug body 10 and the positions of the through holes on the reinforcing member 30 correspond to each other one by one, have the same size, and the central axes coincide with each other. The mounting sleeve 20 can sequentially pass through the lifting points of the lifting lug body 10 and the through holes of the reinforcing member 30. When the mounting sleeve 20 sequentially passes through the lifting points and the through holes, limiting portions 21 are formed at both ends of the mounting sleeve 20 to limit its movement between the lifting points and the through holes.

[0047] The mounting sleeve 20 sequentially passes through the lifting points and the through holes to form an integral structure. The limiting portions 21 at both ends of the mounting sleeve 20 prevent it from moving between the lifting points and the through holes, thereby ensuring the tight connection and stability between the various components.

[0048] With the above technical solution, the through holes and the lifting points have the same size and the central axes coincide with each other, ensuring the precise alignment of the mounting sleeve 20, improving the accuracy and stability of the installation. The design of the limiting portions 21 at both ends of the mounting sleeve 20 effectively prevents it from moving between the lifting points and the through holes, ensuring the tight connection between the various components and reducing the possibility of loosening. The mounting sleeve 20 is connected to the reinforcing member 30 and the lifting lug body 10, further strengthening the strength of the mounting sleeve 20 and improving its stability during operation.

[0049] In an embodiment of the present application, the reinforcing member 30 is Z-shaped, and the middle part of the Z-shaped reinforcing member 30 close to the lifting lug body 10 is recessed inward, so that reinforcing ribs are formed on both sides.

[0050] With the above technical solution, the Z-shaped structure itself has high bending and torsional resistance capabilities. By recessing inward in the middle to form reinforcing ribs, the rigidity and strength of the reinforcing member 30 can be further improved, making it not easily deformed when bearing external forces.

[0051] In an embodiment of the present application, the reinforcing member 30 is provided with first weight-reducing holes.

[0052] With the above technical solution, the setting of the first weight-reducing holes 31 reduces the use of materials, thereby reducing the overall weight of the reinforcing member 30. The use of materials can be reduced while ensuring the structural strength, reducing the production cost, and improving the material utilization rate.

[0053] In an embodiment of the present application, there are three groups of the lifting points, the number of the first group is two, the number of the second group is one, and the number of the third group is two.

[0054] With the above technical solution, the design of three groups of suspension points can provide multiple fixing points, making the connection between the reinforcement member 30 and the lug body 10 more secure. Each of the first group and the third group has two suspension points, increasing the connection stability and anti-torsion ability. Multiple groups of suspension points can disperse the external force to multiple points, reduce the stress borne by a single hole, and reduce the stress concentration phenomenon, thereby improving the durability and reliability of the overall structure.

[0055] In an embodiment of the present application, a second weight-reducing hole is provided at a position on the lug body 10 corresponding to the reinforcement member.

[0056] With the above technical solution, the setting of the second weight-reducing hole reduces the use of materials, thereby reducing the overall weight of the lug body 10. It is possible to reduce the use of materials while ensuring the structural strength, reduce the production cost, and improve the material utilization rate.

[0057] In an embodiment of the present application, a depression is formed at a position between any two adjacent second weight-reducing holes on the lug body 10 along the outer to inner direction of the lug body.

[0058] With the above technical solution, the depression is formed by stamping. The depression design formed on the lug body by stamping can optimize the stress distribution and reduce the stress concentration phenomenon, thereby improving the strength and rigidity of the lug body 10.

[0059] In an embodiment of the present application, a reinforcing cross beam 40 is provided inside the lug body 10.

[0060] With the above technical solution, the reinforcing cross beam 40 can significantly improve the overall strength of the lug body 10, making it not easily deformed or broken when bearing heavy loads, and ensuring the stability and safety of the structure. The reinforcing cross beam 40 can increase the rigidity of the lug body 10, reduce the bending and torsional deformation that may occur during use, and improve the durability and reliability of the lug.

[0061] The present application also discloses a battery steel box body, including a steel box body main body, and the steel box body main body is connected with a lug structure for the battery steel box body as described in any one of the above.

[0062] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A hanging ear structure for a battery steel box, characterized in that: include: The lifting lug body can be connected to the battery steel box, and the lifting lug body is provided with at least two lifting points; and A mounting sleeve is connected to the lifting point and the mounting member; as well as The reinforcement piece is arranged on the outer side wall of the lifting ear body and is used to improve the structural strength of the lifting ear body.

2. The hanging ear structure for a battery steel box according to claim 1, characterized in that: The lifting ear body is Z-shaped.

3. The hanging ear structure for a battery steel box according to claim 1, characterized in that: The reinforcement corresponds one-to-one to the position of the hanging point on the lifting ear body, and a through hole is provided on the reinforcement. The through hole has the same size as the hanging point and the intermediate axes coincide with each other. The mounting sleeve can pass through the hanging point and the through hole in sequence. When the mounting sleeve passes through the hanging point and the through hole in sequence, limit portions are formed at both ends of the mounting sleeve to limit the movement of the mounting sleeve between the hanging point and the through hole.

4. The hanging ear structure for a battery steel box according to claim 1, characterized in that: The reinforcement piece is Z-shaped, and the middle portion of the Z-shaped reinforcement piece close to the side of the lifting ear body is recessed inwards, so that reinforcement ribs are formed on both sides.

5. The hanging ear structure for a battery steel box according to claim 1, characterized in that: The reinforcement is provided with a first weight-reducing hole.

6. The hanging ear structure for a battery steel box according to claim 1, characterized in that: There are three groups of hanging points, the first group has two hanging points, the second group has one hanging point, and the third group has two hanging points.

7. The hanging ear structure for a battery steel box according to claim 1, characterized in that: A second weight-reducing hole is provided on the lifting ear body at a position corresponding to the reinforcement.

8. The hanging ear structure for a battery steel box according to claim 7, characterized in that: A position between any two adjacent second weight-reducing holes on the lifting ear body forms a depression along the direction from the outside to the inside of the lifting ear body.

9. The hanging ear structure for a battery steel box according to claim 1, characterized in that: A reinforcing beam is provided on the inner side of the lifting ear body.

10. A battery box, characterized in that: It comprises a steel box body, to which the lug structure for a battery steel box body as claimed in any one of claims 1 to 9 is connected.

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