Riveting type battery box bottom support
By adopting riveted connection method and combined with welding technology, the problems of high processing difficulty and large transportation space occupancy are solved, and efficient and stable battery box bottom mount connection is achieved, reducing costs and transportation space requirements.
Patent Information
- Application Number
- CN202422336536.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The processing methods of the existing battery box bottom support have problems such as poor torsion resistance, complex structure, increased volume, large transportation space occupation and complex welding positioning devices.
The riveted connection method is adopted, through the removable connection between the main beam assembly and the guide assembly, the vibration resistance and torsion resistance of riveted are used to reduce transportation space requirements, and welding is used in necessary parts to ensure strength and accuracy.
It realizes efficient connection of the battery box bottom bracket, improves vibration resistance and torsion resistance, reduces transportation space requirements, reduces costs, and improves assembly accuracy and stability.
Smart Images
Figure CN223014341U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy vehicles, and more specifically, to a riveted battery box bottom bracket. Background Art
[0002] The battery box bottom bracket is a crucial part of the energy storage system of electric vehicles. It is located below the battery box and plays a key role in bearing weight, protecting, and fixing the battery box. Generally made of high-strength and corrosion-resistant materials, it can effectively enhance the stability of the overall structure. It provides a stable support platform for the battery pack and can prevent damage caused by vibration or collision. In summary, the battery box bottom bracket is an important component to ensure the safe and reliable operation of electric vehicles and energy storage systems.
[0003] The battery box bottom bracket generally consists of multiple parts. To ensure its load-bearing capacity, each part needs to be firmly connected together. Therefore, the current battery box bottom brackets are all connected by welding. The advantages of welding are high strength, flexible processing, material saving, and low cost. However, the disadvantages of welding are also obvious. The anti-torsion performance is relatively poor, it is easy to crack, and the outer contour of the volume will increase after welding complex components, which requires a large space for transportation. In addition, when welding large-volume components, it is easy to deform, and the welding positioning device will also become complex, and the deformation amount after heating needs to be considered. Therefore, there are still many problems with the processing method of the battery box bottom bracket. Content of the Utility Model
[0004] To solve the problem of the large processing difficulty of the battery box bottom bracket, the utility model provides a riveted battery box bottom bracket, including:
[0005] A main beam assembly, the main beam assembly includes two first beam units; the two first beam units are arranged at intervals along the width direction of the first beam unit;
[0006] A first guiding assembly, the first guiding assembly includes two fourth beam units, a fifth beam unit, and a guiding unit; one end of the fifth beam unit is fixedly connected to one of the fourth beam units, and the other end is fixedly connected to the other fourth beam unit; the guiding unit is fixedly connected to the fourth beam unit; the fourth beam unit is detachably connected to the first beam unit; the length direction of the fourth beam unit is parallel to the length direction of the first beam unit;
[0007] A:B = 0.5 - 0.8; where A is the length of the fourth beam unit, and B is the length of the first beam unit.
[0008] In this embodiment, the first beam unit includes a first beam module, a first flange, and a second flange; the two first beam modules are arranged at intervals along the width direction of the first beam module; the fourth beam unit is detachably connected to the first beam module;
[0009] One end of the first flange is fixedly connected to the first beam module, and the other end extends along the width direction of the first beam module; the first flange is in the shape of a flat plate; the first flange is arranged on one side of the first beam module along the height direction of the first beam module; one end of the second flange is fixedly connected to the first beam module, and the other end extends along the width direction of the first beam module; the second flange is arranged on the other side of the first beam module along the height direction of the first beam module.
[0010] In this embodiment, the first beam module includes a first beam portion, a second beam portion, a third beam portion, a fourth beam portion, and a fifth beam portion; the first beam portion, the second beam portion, the third beam portion, the fourth beam portion, and the fifth beam portion are fixedly connected in sequence;
[0011] D > C; D > E; D > G; F > C; F > E; F > G; where C is the height of the first beam portion, D is the height of the second beam portion, E is the height of the third beam portion, F is the height of the fourth beam portion, and G is the height of the fifth beam portion.
[0012] In this embodiment, the fourth beam unit includes a first guiding beam, a second guiding beam, and a third guiding beam; one end of the second guiding beam is fixedly connected to the first guiding beam, and the other end is fixedly connected to the third guiding beam; the first guiding beam is adapted to the second beam portion; the second guiding beam is adapted to the third beam portion; the third guiding beam is adapted to the fourth beam portion;
[0013] The first guiding component includes two fifth beam units; one end of one fifth beam unit is fixedly connected to one first guiding beam, and the other end is fixedly connected to the other first guiding beam; one end of the other fifth beam unit is fixedly connected to one third guiding beam, and the other end is fixedly connected to the other third guiding beam.
[0014] In this embodiment, the height of the first beam portion gradually decreases along the direction from the fifth beam portion to the first beam portion; the height of the fifth beam portion gradually decreases along the direction from the first beam portion to the fifth beam portion.
[0015] In this embodiment, H ≥ K; H ≥ J; where H is the minimum height on the third beam portion, K is the maximum height on the first beam portion, and J is the maximum height on the fifth beam portion.
[0016] In this embodiment, the main beam assembly further includes two second beam units; one end of one second beam unit is detachably connected to one second beam portion, and the other end is detachably connected to the other second beam portion; one end of the other second beam unit is detachably connected to one fourth beam portion, and the other end is detachably connected to the other fourth beam portion; the guiding unit is disposed on the periphery of the second beam unit.
[0017] In this embodiment, the first guiding assembly includes four guiding units; the guiding unit includes a first guiding portion and a second guiding portion; two of the first guiding portions are respectively fixedly connected to both ends of one fourth beam unit in the length direction; the other two first guiding portions are respectively fixedly connected to both ends of the other fourth beam unit in the length direction; the second guiding portion is disposed on the periphery of the first guiding portion; the four second guiding portions are disposed in the space surrounded by the four first guiding portions;
[0018] The guiding unit includes a first state and a second state; the first state includes the first guiding portion abutting against the battery box; the second state includes the first guiding portion and the second guiding portion respectively abutting against the battery box.
[0019] In this embodiment, the riveted battery box bottom bracket further includes two second guiding assemblies; one second guiding assembly is detachably connected to one end of the first beam unit in the length direction, and the other second guiding assembly is detachably connected to the other end of the first beam unit in the length direction;
[0020] The second guiding assembly includes a fourth guiding beam and a fourth guiding portion; one end of the fourth guiding beam is detachably connected to one first beam unit, and the other end is detachably connected to the other first beam unit; the fourth guiding portion is detachably connected to the fourth guiding beam.
[0021] In this embodiment, the fourth guiding portion is fixedly connected to the fourth guiding beam.
[0022] To solve the problem of high processing difficulty of the battery box bottom bracket, the present utility model has the following advantages:
[0023] In order to enable the battery box bottom bracket to reduce costs under the condition of sufficient guiding accuracy, the present utility model adopts different assembly methods according to the different functions of the components of the battery box bottom bracket. Among them, the guiding assembly of the battery box bottom bracket plays the most important role during the guiding process and requires high precision, so the welding method is adopted. And other components are all riveted to the main beam. Riveting has good vibration resistance, anti-torsion performance, small forming deformation, light weight, can be disassembled for transportation, and then assembled after being transported to the destination, so as to save transportation space and also occupy less inventory space, thereby reducing costs. Description of the Drawings
[0024] Figure 1 Shows a schematic diagram of a riveted battery box bottom bracket of an embodiment;
[0025] Figure 2 Shows a schematic diagram of a first guiding assembly of a riveted battery box bottom bracket of an embodiment;
[0026] Figure 3 Shows a schematic diagram of a first beam module of a riveted battery box bottom bracket of an embodiment;
[0027] Figure 4 Shows a partial schematic diagram of a riveted battery box bottom bracket of an embodiment.
[0028] Reference numerals:
[0029] 10 Main beam assembly; 11 First beam unit; 111 First beam module; 1111 First beam part; 1112 Second beam part; 1113 Third beam part; 1114 Fourth beam part; 1115 Fifth beam part; 112 First flanging; 113 Second flanging; 12 Second beam unit; 13 Third beam unit; 20 First guiding assembly; 21 Fourth beam unit; 211 First guiding beam; 212 Second guiding beam; 213 Third guiding beam; 22 Fifth beam unit; 24 Guiding unit; 241 First guiding part; 242 Second guiding part; 30 Second guiding assembly; 31 Fourth guiding beam; 32 Fourth guiding part; 33 Fifth guiding beam. Detailed implementation manners
[0030] Now, the present disclosure will be described with reference to several exemplary embodiments. It should be understood that these embodiments are described only to enable those of ordinary skill in the art to better understand and thus implement the present disclosure, rather than implying any limitation on the scope of the present disclosure.
[0031] As used herein, the term "comprising" and its variants are to be construed as open-ended terms meaning "including but not limited to". The term "based on" is to be construed as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment". The term "another embodiment" is to be construed as "at least one other embodiment". The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances. In addition, the terms "installed", "set", "provided with", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.
[0032] The battery box bottom bracket is a crucial part of the energy storage system of an electric vehicle. It is located below the battery box and plays the roles of bearing weight, protecting, and fixing the battery box. The battery box bottom bracket is composed of multiple parts. The existing battery box components only use welding to complete the assembly. However, after the welding of components with complex structures, the outer contour of the volume will increase, and a large amount of space is required during transportation. The welding positioning device will also become complex accordingly. Moreover, the welded structure is prone to deformation or fracture when heated. Therefore, a suitable solution is needed to enable the battery box components to have sufficient guiding accuracy and strength while reducing costs.
[0033] This embodiment discloses a riveted battery box bottom bracket, as Figure 1As shown, it may include a main beam assembly 10 and a first guiding assembly 20. The main beam assembly 10 and the first guiding assembly 20 may be detachably connected. The detachable connection method may be riveting, bolt connection, etc. Riveting is a preferred solution among them, which has good anti-dynamic load performance, good anti-torsion performance, and low precision requirements. In addition, its characteristics of light weight, detachable, and high efficiency can play a role in saving space during transportation. The main beam assembly 10 may include two first beam units 11, and the two first beam units 11 may be arranged at intervals along the width direction of the first beam unit 11.
[0034] As Figure 2 shown, the first guiding assembly 20 may include two fourth beam units 21, a fifth beam unit 22, and a guiding unit 24. One end of the fifth beam unit 22 may be fixedly connected to one fourth beam unit 21, and the other end may be fixedly connected to the other fourth beam unit 21. One end of the guiding unit 24 may be fixedly connected to the fourth beam unit 21, and the other end may extend away from the fourth beam unit 21. When the vehicle is being charged, there may be deviations in the position of the battery box during installation, and the guiding unit 24 can play a role in guiding the battery box to be installed in the correct position. The fixed connection may be welding, integral molding, and welding is preferably used. The welding method can have high connection strength while meeting the cost requirements, enhancing the structural stability, and meeting the need for the first guiding assembly 20 to play a guiding role. The fourth beam unit 21 may be detachably connected to the first beam unit 11, thereby connecting the main beam assembly 10 and the first guiding assembly 20. The detachable connection method may be riveting, bolt connection, etc. The detachable connection design allows each component to be disassembled and transported, saving transportation costs. In addition, the riveted connection has high strength, good anti-vibration performance, and small forming deformation, which is beneficial to the stable support of the battery box by the riveted battery box bottom bracket and can be used as a preferred solution. The length direction of the fourth beam unit 21 may be parallel to the length direction of the first beam unit 11.
[0035] The ratio of A to B may be 0.5 to 0.8. Among them, as Figure 4 shown, A is the length of the fourth beam unit 21, and B is the length of the first beam unit 11. When the ratio of A to B is between 0.5 and 0.8, the fourth beam unit 21 and the first beam unit 11 are detachably connected, and during transportation, the fourth beam unit 21 and the first beam unit 11 can be stacked together to save transportation space. If the ratio of A to B is too large, it will increase the space required for transportation and increase the weight at the same time. If the ratio of A to B is too small, the abutting area will decrease, and the number of riveting points will also decrease, resulting in insufficient connection strength.
[0036] In this embodiment, as Figure 3As shown, the first beam unit 11 may include a first beam module 111, a first flange 112, and a second flange 113. The two first beam modules 111 may be arranged at intervals in the width direction of the first beam module 111. The fourth beam unit 21 is detachably connected to the first beam module 111, thereby connecting the main beam assembly 10 to the first guiding assembly 20. The detachable connection method may be riveting, bolt connection, etc. Riveting is a preferred option among them, with good anti-dynamic load performance, strong anti-torsion performance, light weight, and high efficiency. In addition, its detachable feature can save space during transportation.
[0037] One end of the first flange 112 may be fixedly connected to the first beam module 111, and the other end extends in the width direction of the first beam module 111. The first flange 112 may be in the shape of a flat plate. The first flange 112 is arranged on one side of the first beam module 111 in the height direction of the first beam module 111. One end of the second flange 113 is fixedly connected to the first beam module 111, and the other end extends in the width direction of the first beam module 111. The fixed connection may be welding or integral molding, and welding is preferably used. The welding method can ensure high connection strength while meeting the cost requirements, enhancing the structural stability. The second flange 113 may be in the shape of a flat plate. The second flange 113 is arranged on the other side of the first beam module 111 in the height direction of the first beam module 111. The first flange 112 and the second flange 113 can assist in connecting other components of the riveted battery box bottom bracket to the first beam module 111, making the connection more stable. At the same time, they can also increase the strength of the first beam module 111, enabling the riveted battery box bottom bracket to better support the battery box.
[0038] In this embodiment, as Figure 3 shown, the first beam module 111 may include a first beam portion 1111, a second beam portion 1112, a third beam portion 1113, a fourth beam portion 1114, and a fifth beam portion 1115. The first beam portion 1111, the second beam portion 1112, the third beam portion 1113, the fourth beam portion 1114, and the fifth beam portion 1115 may be fixedly connected in sequence. The fixed connection may be welding or integral molding, and welding is preferably used. The welding method can ensure high connection strength while meeting the cost requirements, enhancing the structural stability.
[0039] It can be made such that D > C, D > E, D > G, F > C, F > E, F > G. Wherein, as Figure 3 and Figure 4As shown, C is the height of the first beam 1111, D is the height of the second beam 1112, E is the height of the third beam 1113, F is the height of the fourth beam 1114, and G is the height of the fifth beam 1115. When the battery box and the riveted battery box base are matched and installed on the frame, one end of the first beam 1111, the second beam 1112, the third beam 1113, the fourth beam 1114, and the fifth beam 1115 abuts against the battery box, and the other end is close to the frame. The ends of the first beam 1111, the second beam 1112, the third beam 1113, the fourth beam 1114, and the fifth beam 1115 that abut against the battery box are all flush, while the other ends close to the frame are of different heights. Among them, the second beam 1112 and the fourth beam 1114 have the highest heights, will abut against the vehicle beam, and transfer the force of the battery box on the riveted battery box base to the beam.
[0040] In this embodiment, if Figure 2 As shown, the fourth beam unit 21 may include a first guide beam 211, a second guide beam 212, and a third guide beam 213. One end of the second guide beam 212 may be fixedly connected to the first guide beam 211, and the other end may be fixedly connected to the third guide beam 213. When the main beam assembly 10 and the first guide assembly 20 are assembled, the first beam module 111 and the fourth beam unit 21 may be detachably connected, and the detachable connection may be riveted, bolted, etc. Riveting, as a preferred solution, has good vibration resistance, strong torsion resistance, light weight, and high processing efficiency. Its detachable feature can save space during transportation. The first guide beam 211 can be matched with the second beam portion 1112, the second guide beam 212 can be matched with the third beam portion 1113, and the third guide beam 213 can be matched with the fourth beam portion 1114. The number of riveting points on the contact surface can be increased, thereby improving the connection strength. At the same time, the abutment area between the first guide beam 211 and the second beam portion 1112 is large, which can make the first guide beam 211 bear the force evenly and extend the service life.
[0041] The first guide assembly 20 may include two fifth beam units 22. One end of one fifth beam unit 22 is fixedly connected to one first guide beam 211, and the other end is fixedly connected to another first guide beam 211. One end of another fifth beam unit 22 is fixedly connected to one third guide beam 213, and the other end is fixedly connected to another third guide beam 213. The fixed connection may be welding or integral molding, and welding may be preferred. The welding method can meet the cost requirements while ensuring high connection strength and enhancing structural stability.
[0042] In this embodiment, if Figure 1 and Figure 3As shown, the battery box is fixed at the upper end where the first beam portion 1111 and the fifth beam portion 1115 are flush, and the second beam portion 1112 and the fourth beam portion 1114, which mainly bear the weight of the battery box, are located between the first beam portion 1111 and the fifth beam portion 1115. The height of the first beam portion 1111 can gradually decrease along the direction from the fifth beam portion 1115 to the first beam portion 1111, and the height of the fifth beam portion 1115 can gradually decrease along the direction from the first beam portion 1111 to the fifth beam portion 1115. While ensuring the strength of the first beam module 111, the weight of the first beam module 111 is reduced and materials are saved.
[0043] In this embodiment, H≥K, H≥J. Wherein, as Figure 3 and Figure 4 shown, H is the minimum height on the third beam portion 1113, K is the maximum height on the first beam portion 1111, and J is the maximum height on the fifth beam portion 1115. The first beam portion 1111, the second beam portion 1112, the third beam portion 1113, the fourth beam portion 1114, and the fifth beam portion 1115 are fixedly connected in sequence. The fixed connection can be welding or integrally formed, and welding is preferably used. The welding method can make the connection have high strength while meeting the cost requirements and enhance the structural stability. The second beam portion 1112 and the fourth beam portion 1114 that cooperate with the vehicle frame mainly bear the weight of the battery box, and the first beam portion 1111 and the fifth beam portion 1115 near the edge are less stressed. Therefore, H≥K, H≥J can be made, so that while ensuring the strength of the first beam module 111, the weight of the first beam module 111 is reduced and materials are saved.
[0044] In this embodiment, as Figure 1As shown, the main beam assembly 10 may further include two second beam units 12. One end of a second beam unit 12 may be detachably connected to one second beam portion 1112, and the other end may be detachably connected to another second beam portion 1112. One end of the other second beam unit 12 may be detachably connected to one fourth beam portion 1114, and the other end may be detachably connected to another fourth beam portion 1114. The second beam unit 12 is connected to the second beam portion 1112 and the fourth beam portion 1114 that mainly bear the load, which can play a role in strengthening the overall structure and connecting the vehicle. The guiding unit 24 may be arranged on the peripheral side of the second beam unit 12. Near the second beam unit 12 that plays a role in strengthening the structure, the guiding unit 24 can transfer the force received during the guiding process to the second beam unit 12, shortening the force transmission path and the force arm, thereby making the riveted battery box bottom bracket structure more stable. The detachable connection method may be riveting, bolt connection, etc. Riveting, as a preferred solution among them, has good vibration resistance, strong anti-torsion performance, light weight, small forming deformation, low processing difficulty, high efficiency, and can save space during transportation in combination with its detachable characteristics. In this embodiment, the main beam assembly 10 may further include two third beam units 13. One end of a third beam unit 13 may be detachably connected to one first beam portion 1111, and the other end may be detachably connected to another first beam portion 1111. One end of the other third beam unit 13 may be detachably connected to one fifth beam portion 1115, and the other end may be detachably connected to another fifth beam portion 1115. The third beam unit 13 can connect the two ends of the two first beam units 11, making the structure more stable and facilitating the installation of other components.
[0045] In this embodiment, as Figure 2As shown, the first guiding component 20 may include four guiding units 24. When the battery box and the riveted battery box bottom bracket are assembled, the guiding component can guide the battery box to a proper position, making the fitting process more accurate and rapid. The guiding unit 24 may include a first guiding portion 241 and a second guiding portion 242, and the first guiding portion 241 may be higher than the second guiding portion 242. Two first guiding portions 241 may be fixedly connected to the two ends of one fourth beam unit 21 in the length direction respectively, and the other two first guiding portions 241 are fixedly connected to the two ends of the other fourth beam unit 21 in the length direction respectively. One end of the first guiding portion 241 may be fixedly connected to the fourth beam unit 21, and the other end extends away from the fourth beam unit 21. The distance between the outer sides of the first guiding portions 241 on one fourth beam unit 21 and the outer sides of the first guiding portions 241 on the other opposite fourth beam unit 21 may gradually decrease from bottom to top, such that part of the first guiding portions 241 forms an inclined plane. When the position of the battery box deviates during assembly, the battery box can slide on the inclined plane, thereby correcting the deviation. One end of the second guiding portion 242 may be fixedly connected to the fourth beam unit 21, and the other end extends away from the fourth beam unit 21. The second guiding portion 242 and the first guiding portion 241 may extend in the same direction, and the area of the second guiding portion 242 near the fourth beam unit 21 gradually decreases from bottom to top.
[0046] The fixed connection may be welding or integrally formed, and preferably welding. The welding method can ensure high connection strength while meeting the cost requirements, enhancing the structural stability, and meeting the need for the guiding unit 24 to play a guiding role. The second guiding portion 242 may be arranged on the peripheral side of the first guiding portion 241, and the four second guiding portions 242 are arranged in the space surrounded by the four first guiding portions 241. During the assembly process of the battery box, the first guiding portions 241 located on the outside can initially position the battery box prior to the second guiding portions 242, and then the second guiding portions 242 can provide more precise guidance for the battery box, further correcting the position of the battery box and enabling the stable installation of the battery box.
[0047] The guiding unit 24 may include a first state and a second state. The first state may include the first guiding portion 241 abutting against the battery box, and the second state includes the first guiding portion 241 and the second guiding portion 242 respectively abutting against the battery box.
[0048] In this embodiment, as Figure 1As shown, the riveted battery box bottom support may further include two second guiding components 30. One second guiding component 30 may be detachably connected to one end of the first beam unit 11 in the length direction, and the other second guiding component 30 is detachably connected to the other end of the first beam unit 11 in the length direction. The detachable connection method may be riveting, bolt connection, etc. The detachable connection design allows each component to be disassembled and transported, saving transportation costs. Preferably, it is riveting. Riveting has high connection strength, good vibration resistance, and strong anti-torsion performance, which is beneficial for the riveted battery box bottom support to stably support the battery box.
[0049] As Figure 1 shown, the second guiding component 30 may include a fourth guiding beam 31 and a fourth guiding portion 32. One end of the fourth guiding beam 31 is detachably connected to one first beam unit 11, and the other end is detachably connected to the other first beam unit 11. One end of the fourth guiding portion 32 may be fixedly connected to the fourth guiding beam 31, and the other end may extend away from the fourth guiding beam 31. The fixed connection may be welding, integrally formed, and preferably welding. The welding method can have high connection strength while meeting the cost requirements, enhancing the structural stability. The distance between the outer sides of one fourth guiding portion 32 and the other fourth guiding portion 32 may gradually decrease from bottom to top, and thus the upper end surface of the fourth guiding portion 32 forms an inclined surface. When the position of the battery box is deviated during assembly, the battery box can slide on the inclined surface to correct the deviation. In another embodiment, the second guiding component 30 may further include a fifth guiding beam 33. One end of the fifth guiding beam 33 may be fixedly connected to the fourth guiding portion 32, and the other end is detachably connected to the third beam unit 13, making the connection between the second guiding component 30 and the main beam component 10 more stable.
[0050] In this embodiment, as Figure 1 shown, the fourth guiding portion 32 may be fixedly connected to the fourth guiding beam 31. The fixed connection may be welding, integrally formed, and preferably welding. The welding method can have high connection strength while meeting the cost requirements, enhancing the structural stability and meeting the need for the second guiding component 30 to play a guiding role.
[0051] Those of ordinary skill in the art can understand that the above embodiments are specific cases for implementing the present disclosure. In actual applications, various changes can be made in form and details without departing from the spirit and scope of the present disclosure.
Claims
1. A riveted battery box base, characterized in that: The riveted battery box bottom bracket comprises: A main beam assembly, the main beam assembly comprising two first beam units; the two first beam units are arranged at intervals along the width direction of the first beam unit; A first guide assembly, the first guide assembly comprising two fourth beam units, a fifth beam unit, and a guide unit; one end of the fifth beam unit is fixedly connected to one of the fourth beam units, and the other end is fixedly connected to another fourth beam unit; the guide unit is fixedly connected to the fourth beam unit; the fourth beam unit is detachably connected to the first beam unit; the length direction of the fourth beam unit is parallel to the length direction of the first beam unit; A: B = 0.5-0.8; wherein A is the length of the fourth beam unit; and B is the length of the first beam unit.
2. The riveted battery box base according to claim 1, characterized in that: The first beam unit comprises a first beam module, a first flange, and a second flange; two first beam modules are arranged at intervals along the width direction of the first beam module; the fourth beam unit is detachably connected to the first beam module; One end of the first flange is fixedly connected to the first beam module, and the other end extends along the width direction of the first beam module; the first flange is flat; the first flange is arranged on one side of the first beam module along the height direction of the first beam module; one end of the second flange is fixedly connected to the first beam module, and the other end extends along the width direction of the first beam module; the second flange is arranged on the other side of the first beam module along the height direction of the first beam module.
3. The riveted battery box base according to claim 2, characterized in that: The first beam module includes a first beam portion, a second beam portion, a third beam portion, a fourth beam portion, and a fifth beam portion; the first beam portion, the second beam portion, the third beam portion, the fourth beam portion, and the fifth beam portion are fixedly connected in sequence; D>C; D>E; D>G; F>C; F>E; F>G; wherein C is the height of the first beam, D is the height of the second beam, E is the height of the third beam, F is the height of the fourth beam, and G is the height of the fifth beam.
4. The riveted battery box base according to claim 3, characterized in that: The fourth beam unit includes a first guide beam, a second guide beam, and a third guide beam; one end of the second guide beam is fixedly connected to the first guide beam, and the other end is fixedly connected to the third guide beam; the first guide beam is adapted to the second beam portion; the second guide beam is adapted to the third beam portion; the third guide beam is adapted to the fourth beam portion; The first guide assembly includes two fifth beam units; one end of one of the fifth beam units is fixedly connected to one of the first guide beams, and the other end is fixedly connected to another of the first guide beams; one end of the other fifth beam unit is fixedly connected to one of the third guide beams, and the other end is fixedly connected to another of the third guide beams.
5. The riveted battery box base according to claim 3, characterized in that: The height of the first beam portion gradually decreases along the direction from the fifth beam portion to the first beam portion; and the height of the fifth beam portion gradually decreases along the direction from the first beam portion to the fifth beam portion.
6. The riveted battery box base according to claim 5, characterized in that: H≥K; H≥J; wherein H is the minimum height on the third beam portion; K is the maximum height on the first beam portion; and J is the maximum height on the fifth beam portion.
7. The riveted battery box base according to claim 3, characterized in that: The main beam assembly also includes two second beam units; one end of one of the second beam units is detachably connected to one of the second beam portions, and the other end is detachably connected to another of the second beam portions; one end of the other of the second beam units is detachably connected to one of the fourth beam portions, and the other end is detachably connected to another of the fourth beam portions; the guide unit is arranged on the peripheral side of the second beam unit.
8. The riveted battery box base according to claim 7, characterized in that: The first guide assembly includes four guide units; the guide unit includes a first guide portion and a second guide portion; two of the first guide portions are respectively fixedly connected to two ends of a fourth beam unit in a length direction; the other two first guide portions are respectively fixedly connected to two ends of another fourth beam unit in a length direction; the second guide portion is arranged on the periphery of the first guide portion; the four second guide portions are arranged in a space surrounded by the four first guide portions; The guide unit includes a first state and a second state; the first state includes the first guide portion abutting against the battery box; the second state includes the first guide portion and the second guide portion abutting against the battery box respectively.
9. The riveted battery box base according to claim 1, characterized in that: The riveted battery box bottom bracket also includes two second guide components; one of the second guide components is detachably connected to one end of the first beam unit in the length direction, and the other second guide component is detachably connected to the other end of the first beam unit in the length direction; The second guide assembly includes a fourth guide beam and a fourth guide portion; one end of the fourth guide beam is detachably connected to one of the first beam units, and the other end is detachably connected to another first beam unit; the fourth guide portion is detachably connected to the fourth guide beam.
10. The riveted battery box base according to claim 9, characterized in that: The fourth guide portion is fixedly connected to the fourth guide beam.