Modularly spliced new energy vehicle chassis apron

Abstract

The utility model belongs to chassis apron technical field, especially relates to a modular splicing's new energy automobile chassis apron, including first apron, the one side of first apron is provided with second apron, the middle part of first apron is equipped with the heat dissipation cavity, the both sides of first apron and second apron are integrally formed and are provided with the mounting seat, the heat conduction component, the heat conduction component includes the heat dissipation fin of setting in the heat dissipation cavity inside, the upper end of first apron and the battery compartment lower end of automobile chassis are pasted, the both sides of heat dissipation cavity are provided with the guide plate, the splicing assembly, the splicing assembly includes the splicing groove of setting on first apron, the utility model discloses through first apron and battery compartment lower end pasting, has realized the quick conduction of battery heat, the heat dissipation fin in heat dissipation cavity has increased the heat exchange area, cooperates the guide plate of both sides and can be actively introduced in the airflow of automobile driving process, forms the efficient forced convection heat dissipation channel, has improved the heat dissipation efficiency of battery compartment bottom significantly.

Description

Technical Field

[0001] This utility model belongs to the field of chassis guard plate technology, and in particular relates to a modular splicing chassis guard plate for new energy vehicles. Background Technology

[0002] As a key structure protecting core components such as the battery compartment and motor, the chassis skid plate of new energy vehicles directly affects vehicle safety and range stability. Currently, most chassis skid plates for new energy vehicles on the market adopt an integrated structural design, but this has the following problems:

[0003] In terms of heat dissipation performance, the battery compartment of new energy vehicles continuously generates a large amount of heat during operation. Traditional protective plates are mostly closed or simple hollow structures with limited heat exchange area and cannot actively guide airflow to form an efficient heat dissipation channel, which causes heat to easily accumulate at the bottom of the battery compartment. This not only causes battery performance degradation and shortened driving range, but also may lead to battery thermal runaway in a long-term high-temperature environment, posing a serious safety hazard. Improvement is urgently needed. Therefore, we propose a modular splicing new energy vehicle chassis protective plate. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned technical problems by providing a modularly spliced ​​chassis guard plate for new energy vehicles, which achieves the effects of splicing the chassis guard plate and conducting heat to the battery compartment.

[0005] In view of this, the present invention provides a modular splicing chassis guard plate for new energy vehicles, including a first guard plate, a second guard plate disposed on one side of the first guard plate, a heat dissipation cavity formed in the middle of the first guard plate, mounting seats integrally formed on both sides of the first and second guard plates, a heat conduction component, the heat conduction component including heat dissipation fins disposed inside the heat dissipation cavity, the upper end of the first guard plate being attached to the lower end of the battery compartment of the vehicle chassis, guide plates disposed on both the front and rear sides of the heat dissipation cavity, and a splicing component, the splicing component including a splicing groove disposed on the first guard plate, an elastic frame disposed in the inner cavity of the splicing groove, a positioning strip integrally formed on the side of the second guard plate near the splicing groove, slots being formed on both the upper and lower sides of the positioning strip, a second smooth surface being disposed on both the upper and lower sides of the elastic frame near the end of the positioning strip, and a first smooth surface being disposed on the side of the positioning strip near the elastic frame.

[0006] Furthermore, the elastic frame is disposed in the middle of the splicing groove, and the elastic frame is detachably connected to the inner wall of the splicing groove by means of bolts.

[0007] Furthermore, the guide plates are symmetrically arranged on both sides of the heat dissipation cavity, and the windward surface of the guide plates is set as an inclined surface.

[0008] Furthermore, the size of the heat dissipation fins is adapted to the inner cavity size of the heat dissipation cavity, and the heat dissipation fins are detachably connected to the inner cavity of the heat dissipation cavity.

[0009] Furthermore, the diameter height of the elastic frame on the side closest to the positioning strip is smaller than the height of the positioning strip.

[0010] Furthermore, the end of the elastic frame near the positioning strip is movably connected to the card slot.

[0011] Furthermore, the length of the elastic frame is the same as the length of the positioning strip, and the elastic frame and the positioning strip are movably connected.

[0012] The beneficial effects of this utility model are:

[0013] By attaching the first protective plate to the bottom of the battery compartment, rapid heat conduction from the battery is achieved. The heat dissipation fins inside the heat dissipation cavity increase the heat exchange area. Together with the guide plates on the front and rear sides, they can actively introduce airflow during vehicle operation, forming an efficient forced convection heat dissipation channel. This significantly improves the heat dissipation efficiency at the bottom of the battery compartment, effectively preventing performance degradation or safety hazards caused by high temperatures and extending battery life.

[0014] By employing a splicing structure that combines splicing slots, elastic frames, and positioning strips, the guiding effect of the first and second smooth surfaces allows the positioning strips to be easily inserted into the splicing slots, pushing the elastic frames to open and enabling assembly without complex tools. The design of the elastic frames snapping into the positioning strip slots ensures reliable positioning after splicing, guaranteeing a stable connection between the first and second guard plates. At the same time, the modular design facilitates the replacement and maintenance of individual guard plates, reducing maintenance costs. Attached Figure Description

[0015] Figure 1 This is a first-view structural diagram of a modularly spliced ​​chassis guard plate for new energy vehicles proposed in this utility model.

[0016] Figure 2 This is a second-view structural diagram of a modularly spliced ​​chassis guard plate for new energy vehicles proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the first and second protective plates of a modularly spliced ​​new energy vehicle chassis protective plate proposed in this utility model;

[0018] Figure 4 This is a partial enlarged view of point A of a modularly spliced ​​chassis guard plate for new energy vehicles proposed in this utility model;

[0019] The markings in the diagram are as follows:

[0020] 1. First protective plate; 11. Heat dissipation cavity; 12. Guide plate; 13. Mounting base; 14. Second protective plate; 2. Positioning strip; 21. First smooth surface; 22. Slot; 23. Elastic frame; 24. Splicing groove; 25. Second smooth surface; 3. Heat dissipation fins. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0023] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0024] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0026] Reference Figures 1 to 4 A modular, splicable underbody protection plate for new energy vehicles includes a first protection plate 1 integrally formed from aluminum alloy, a second protection plate 14 integrally formed from aluminum alloy on one side of the first protection plate 1, a heat dissipation cavity 11 in the middle of the first protection plate 1, mounting seats 13 integrally formed on both sides of the first protection plate 1 and the second protection plate 14, and a heat conduction component, which includes heat dissipation fins 3 integrally formed from aluminum alloy disposed inside the heat dissipation cavity 11. The upper end of the first protection plate 1 is connected to the battery compartment of the vehicle chassis. The ends are fitted together, and guide plates 12 are provided on both the front and rear sides of the heat dissipation cavity 11. The splicing assembly includes a splicing groove 24 provided on the first guard plate 1. An elastic frame 23 is provided in the inner cavity of the splicing groove 24. A positioning strip 2 is integrally formed on the side of the second guard plate 14 near the splicing groove 24. The upper and lower sides of the positioning strip 2 are provided with slots 22. The upper and lower sides of the elastic frame 23 near the end of the positioning strip 2 are provided with second smooth surfaces 25. The side of the positioning strip 2 near the elastic frame 23 is provided with a first smooth surface 21.

[0027] This application achieves a stable heat conduction path by having the upper end of the first protective plate 1 adhere to the lower end of the battery compartment of the vehicle chassis. The heat generated when the battery compartment is working is transferred to the first protective plate 1 through heat conduction. The first protective plate 1 guides the heat into the heat dissipation cavity 11 opened in the middle. The heat dissipation fins 3 inside the heat dissipation cavity 11 are connected to the first protective plate 1, further expanding the surface area for heat diffusion, so that the heat is quickly transferred to the fins. When the vehicle is moving, the air forms a relative airflow. The guide plates 12 on the front and rear sides of the heat dissipation cavity 11 guide the airflow into the heat dissipation cavity 11 through their own structure. When the airflow flows over the surface of the heat dissipation fins 3, it exchanges heat with the high-temperature fins, takes away the heat on the fins and is discharged from the heat dissipation cavity 11, thereby achieving efficient cooling of the bottom of the battery compartment.

[0028] During assembly, the positioning strip 2 on the second guard plate 14 is aligned with the splicing groove 24 of the first guard plate 1 and inserted. The first smooth surface 21 of the positioning strip 2 near the elastic frame 23 contacts the second smooth surface 25 at the end of the elastic frame 23. The guiding effect of the smooth surface reduces the insertion resistance, allowing the positioning strip 2 to easily push the elastic frame 23 to undergo elastic deformation and open. As the positioning strip 2 continues to be inserted, when the elastic frame 23 moves to the slot 22 of the positioning strip 2, the elastic frame 23 contracts under its own elastic restoring force, and its edge is precisely inserted into the slot 22, forming a mechanical limit. Through the combined action of the squeezing force generated by the elastic deformation and the mechanical limit of the slot 22, the first guard plate 1 and the second guard plate 14 are stably spliced, and assembly and disassembly can be completed without the aid of complex tools. Finally, the first guard plate 1 and the second guard plate 14 are installed on the car chassis through the positioning seat.

[0029] In the example of this application, the elastic frame 23 is disposed in the middle of the splicing groove 24, and the elastic frame 23 is detachably connected to the inner wall of the splicing groove 24 by means of bolt fixing.

[0030] As a preferred example of this utility model, when the vehicle vibrates or the guard plate is subjected to external force, the preload of the bolts can counteract the vibration inertial force of the elastic frame 23, preventing it from loosening or falling off. At the same time, the bolt fixing method can achieve the positioning of the elastic frame 23 by adjusting the bolt tightening, ensuring that the central axis of the elastic frame 23 is consistent with the insertion direction of the positioning strip 2, ensuring the coaxiality of the two, thereby avoiding the jamming problem caused by the offset of the elastic frame 23 during splicing.

[0031] In the example of this application, the guide plate 12 is symmetrically arranged on both sides of the heat dissipation cavity 11, and the windward surface of the guide plate 12 is set as an inclined surface.

[0032] As a preferred example of this utility model, the guide plates 12 are symmetrically arranged on both sides of the heat dissipation cavity 11 to form symmetrical airflow guiding channels, thereby ensuring that the airflow generated by the vehicle can enter the heat dissipation cavity 11 evenly, avoiding local overheating of the heat dissipation fins 3 caused by concentrated airflow on one side. The guiding effect of the inclined surface gathers the dispersed airflow and directs it into the heat dissipation cavity 11, increasing the flow rate and volume of the airflow entering the heat dissipation cavity 11, so that the airflow can fully flow over the surface of all heat dissipation fins 3, maximizing the heat exchange efficiency. At the same time, the smooth airflow guidance reduces the airflow vortex under the chassis, reduces aerodynamic drag and noise, and indirectly improves the vehicle's driving stability.

[0033] In the example of this application, the size of the heat dissipation fin 3 is adapted to the inner cavity size of the heat dissipation cavity 11, and the heat dissipation fin 3 is detachably connected to the inner cavity of the heat dissipation cavity 11.

[0034] As a preferred example of this utility model, the heat dissipation fins 3 and the heat dissipation cavity 11 are detachably connected. This connection method ensures the heat conduction efficiency between the fins and the heat shield while allowing the fins to be disassembled and installed independently. When the surface of the fins accumulates dust or becomes damaged due to long-term use, the fins can be directly removed from the heat dissipation cavity 11 for cleaning or replacement. If it is necessary to improve the heat dissipation performance, fins with higher thermal conductivity or better structure can be directly replaced without replacing the entire heat shield.

[0035] In the example of this application, the diameter height of the elastic frame 23 on the side near the positioning strip 2 is smaller than the height of the positioning strip 2, and the elastic frame 23 is integrally molded from polyoxymethylene (POM) or stainless steel.

[0036] As a preferred example of this utility model, when the positioning strip 2 is inserted into the elastic frame 23, the upper and lower surfaces of the positioning strip 2 exert a squeezing force on the end of the elastic frame 23. This force causes the elastic frame 23 to undergo elastic deformation, and its diameter is forcibly expanded to accommodate the positioning strip 2. The reaction force generated by the elastic deformation causes the inner wall of the elastic frame 23 to fit tightly against the surface of the positioning strip 2, increasing the static friction between the two and providing initial fastening force for splicing. As the positioning strip 2 is inserted into place, the deformed part of the elastic frame 23 moves to the slot 22 of the positioning strip 2. The recessed structure of the slot 22 provides space for the elastic frame 23 to recover its deformation. Under the action of the recovery force, the elastic frame 23 contracts, and its edge is embedded in the slot 22, forming a secondary mechanical fastening to ensure the firmness of the snap-fit.

[0037] In the example of this application, the end of the elastic frame 23 near the positioning strip 2 is movably connected to the card slot 22.

[0038] As a preferred example of this utility model, during disassembly, only an external force in the opposite direction of splicing is applied to the guard plate. This external force overcomes the friction and elastic constraint between the elastic frame 23 and the slot 22, causing the elastic frame 23 to undergo secondary deformation and disengage from the slot 22. Disassembly can be completed without the aid of special tools.

[0039] In the example of this application, the length of the elastic frame 23 is the same as the length of the positioning strip 2, and the elastic frame 23 is movably connected to the positioning strip 2.

[0040] As a preferred example of this utility model, the elastic frame 23 and the positioning strip 2 are of the same length, so that the mating surface of the two extends through the entire length direction, ensuring that the squeezing force of the positioning strip 2 on the elastic frame 23 during splicing is evenly distributed on the entire length of the elastic frame 23, avoiding permanent deformation of the elastic frame 23 caused by excessive local stress.

[0041] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A modular, splicable chassis guard plate for new energy vehicles, characterized in that, include: A first protective plate (1) is provided on one side of the first protective plate (1) and a second protective plate (14) is provided on one side of the first protective plate (1). A heat dissipation cavity (11) is provided in the middle of the first protective plate (1). Mounting bases (13) are integrally formed on both sides of the first protective plate (1) and the second protective plate (14). The heat-conducting component includes heat dissipation fins (3) disposed inside the heat dissipation cavity (11), the upper end of the first guard plate (1) is attached to the lower end of the battery compartment of the vehicle chassis, and guide plates (12) are provided on both the front and rear sides of the heat dissipation cavity (11). The splicing assembly includes a splicing groove (24) disposed on a first guard plate (1), an elastic frame (23) disposed in the inner cavity of the splicing groove (24), a positioning strip (2) integrally formed on the side of the second guard plate (14) near the splicing groove (24), a slot (22) is provided on both the upper and lower sides of the positioning strip (2), a second smooth surface (25) is provided on both the upper and lower sides of the elastic frame (23) near the end of the positioning strip (2), and a first smooth surface (21) is provided on the side of the positioning strip (2) near the elastic frame (23).

2. The modularly assembled chassis guard plate for new energy vehicles according to claim 1, characterized in that, The elastic frame (23) is located in the middle of the splicing groove (24), and the elastic frame (23) is detachably connected to the inner wall of the splicing groove (24) by means of bolt fixing.

3. The modularly assembled chassis guard plate for new energy vehicles according to claim 2, characterized in that, The guide plate (12) is symmetrically arranged on both sides of the heat dissipation cavity (11), and the windward surface of the guide plate (12) is set as an inclined surface.

4. A modularly assembled chassis guard plate for new energy vehicles according to claim 3, characterized in that, The size of the heat dissipation fins (3) is adapted to the inner cavity size of the heat dissipation cavity (11), and the heat dissipation fins (3) and the inner cavity of the heat dissipation cavity (11) are detachably connected.

5. A modularly assembled chassis guard plate for new energy vehicles according to claim 4, characterized in that, The diameter height of the elastic frame (23) on the side near the positioning strip (2) is smaller than the height of the positioning strip (2).

6. A modularly assembled chassis guard plate for new energy vehicles according to claim 5, characterized in that, The end of the elastic frame (23) near the positioning strip (2) is movably connected to the slot (22).

7. A modularly assembled chassis guard plate for new energy vehicles according to claim 6, characterized in that, The length of the elastic frame (23) is the same as the length of the positioning strip (2), and the elastic frame (23) and the positioning strip (2) are movably connected.

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