Bottom protection plate assembly and vehicle

Abstract

The utility model discloses a bottom guard plate subassembly and vehicle, the bottom guard plate subassembly includes: first plate portion and second plate portion, the first plate portion and the second plate portion are integrally formed, the first plate portion is located below the battery pack and is suitable for bearing and protecting the battery pack, the second plate portion is located at the peripheral side of the first plate portion and is suitable for bearing and protecting the battery pack, and the second plate portion is suitable for bearing and protecting the battery pack. And the first plate part and the second plate part are connected with a vehicle body. According to the bottom guard plate assembly, the overall structure smoothness and the surface smoothness can be improved, the driving wind resistance and noise can be effectively reduced, the vehicle driving comfort is improved, the endurance mileage is increased, impact and vibration force transmitted by the outside and a vehicle body can be better resisted, and the safety of a battery pack and the whole vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an underbody guard plate assembly and a vehicle. Background Art

[0002] In related technologies, with the advancement of science and technology and the development of the automobile industry, consumers have higher and higher requirements for automobile performance, and the cruising range of automobiles is an aspect that consumers pay close attention to. During the high-speed driving of a vehicle, wind resistance is the main factor affecting the vehicle's cruising range. The underbody guard of the vehicle, as the flow surface of the airflow, has a very important influence on the wind resistance of the entire vehicle.

[0003] Traditional underbody guard plates are usually made of parts, consisting of multiple guard plates spliced ​​together. There are seams and gaps between the guard plates, which prevent airflow from passing smoothly, increase driving wind resistance and noise, and seriously affect the vehicle's range and driving comfort. At the same time, during vehicle driving, road excitation is transmitted to the subframe, causing the underbody guard plate connected to the subframe to move relative to it, resulting in pulling, squeezing, etc., which can easily lead to tearing of the underbody guard plate and connection failure, causing its load-bearing and safety protection functions for the battery pack at the bottom of the vehicle and the internal structure of the vehicle to fail. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose an underbody guard assembly, which can improve the overall structural smoothness and surface smoothness, effectively reduce driving wind resistance and noise, improve vehicle driving comfort and cruising range, and better resist the impact and vibration force transmitted by the outside world and the vehicle body, which is conducive to improving the safety of the battery pack and the whole vehicle.

[0005] The utility model also provides a vehicle with the bottom guard plate assembly.

[0006] According to the bottom guard plate assembly of the first aspect embodiment of the utility model, the bottom guard plate assembly includes: a first plate portion and a second plate portion, the first plate portion and the second plate portion are integrally formed, the first plate portion is located below the battery pack and is suitable for carrying and protecting the battery pack, the second plate portion is located on the peripheral side of the first plate portion, and the first plate portion and the second plate portion are both connected to the vehicle body.

[0007] According to the bottom guard plate assembly of the utility model, the first plate portion and the second plate portion can be constructed as an integrally formed part, thereby improving the overall structural smoothness and surface flatness of the bottom guard plate assembly, achieving no joint gap, effectively reducing driving wind resistance and noise, improving vehicle driving comfort, saving energy consumption, and increasing the vehicle's cruising range. In addition, compared with the related art, the road excitation is transmitted to the subframe, which will cause the bottom guard plate connected to the subframe to move relative to it, causing pulling, squeezing, etc., resulting in the tearing of the bottom guard plate and failure of the connection, affecting the load-bearing and safety protection function. The bottom guard plate assembly in the utility model is an integrated structure, which can enhance rigidity and strength, and can better resist the impact and vibration force transmitted from the outside world and the vehicle body, thereby helping to improve the safety of the battery pack and the whole vehicle.

[0008] According to some embodiments of the utility model, a mounting platform suitable for connecting to the vehicle body is provided on the first plate portion and / or the second plate portion, and the mounting platform includes: a sinking platform, one end of which is connected to the first plate portion or the second plate portion, the sinking platform forms a accommodating cavity that passes through the height direction of the vehicle body, and the cross-sectional area of ​​the sinking platform gradually decreases in the direction away from the first plate portion and the second plate portion.

[0009] Furthermore, the mounting platform further includes: an insert, a mounting hole is formed at the free end of the sink platform, and the insert is arranged in the mounting hole.

[0010] In some embodiments, reinforcing ribs are provided between the outer periphery of the sink and the first plate portion, and / or the second plate portion.

[0011] According to some embodiments of the utility model, a first guide groove is formed on the first plate portion, and the first guide groove includes: a first groove extending in the front-rear direction of the vehicle body and a second groove extending in the left-right direction of the vehicle body, and the first groove is connected to the second groove.

[0012] According to some embodiments of the present invention, second guide grooves are formed on the second plate portion, which are spaced apart in the left-right direction of the vehicle body and extend substantially along the front-rear direction of the vehicle body.

[0013] In some embodiments, the bottom guard plate assembly further includes: a connecting member, which is disposed on the mounting platform and is suitable for connecting to the vehicle body.

[0014] Furthermore, the connecting member includes: a first rod body and a second rod body, the first rod body is accommodated in the accommodating cavity; the second rod body is connected to the first rod body, the second rod body extends in a direction away from the first plate portion and the second plate portion, and is suitable for connecting to the vehicle body; wherein the diameter of the first rod body is greater than the diameter of the second rod body, and the first rod body and the second rod body are coaxially arranged.

[0015] Furthermore, the bottom guard plate assembly also includes: a buffer component, and the buffer component is arranged between the first rod body and the insert.

[0016] According to a vehicle of an embodiment of the second aspect of the utility model, the vehicle includes: an underbody guard plate assembly as described in any one of the above embodiments.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the cooperation between the bottom guard plate assembly and the vehicle body according to some embodiments of the utility model;

[0020] Figure 2 is a schematic diagram of a bottom guard plate assembly according to some embodiments of the utility model;

[0021] Figure 3 It is a schematic diagram of the mounting platform structure according to some embodiments of the utility model;

[0022] Figure 4 It is a cross-sectional view of the connection parts and the mounting platform according to some embodiments of the utility model;

[0023] Figure 5 It is a schematic cross-sectional view of a connecting member and a buffer member according to some embodiments of the utility model.

[0024] Reference numerals:

[0025] Bottom guard plate assembly 1; vehicle body 2;

[0026] A first plate portion 11, a first guide groove 111, a first groove 1111, and a second groove 1112;

[0027] The second plate portion 12, the second guide groove 121, the unloading groove 122;

[0028] Mounting table 13;

[0029] The sink 131, the accommodating cavity 131a, and the anti-collapse hole 131b;

[0030] Insert 132, first section 1321, second section 1322;

[0031] Reinforcement 133;

[0032] Connecting member 14, first rod body 141, washer 1411, second rod body 142, limiting step 1421;

[0033] Buffer 15, welding nut 16;

[0034] The bracket 21 is connected. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0037] Reference to "embodiment" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0040] In the embodiments of the present application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device are only exemplary descriptions and should not constitute any limitation to the present application.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0042] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0043] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0044] The term "plurality" used in the present application refers to two or more (including two).

[0045] Reference below Figure 1-Figure 5 An underbody guard plate assembly 1 and a vehicle according to an embodiment of the present invention are described.

[0046] like Figure 1 and Figure 2 As shown, according to the bottom guard plate assembly 1 of the first embodiment of the utility model, the bottom guard plate assembly 1 includes: a first plate portion 11 and a second plate portion 12 .

[0047] Among them, the first plate portion 11 and the second plate portion 12 are integrally formed, the first plate portion 11 is located below the battery pack and is suitable for carrying and protecting the battery pack, the second plate portion 12 is located on the peripheral side of the first plate portion 11, and the first plate portion 11 and the second plate portion 12 are both connected to the vehicle body 2.

[0048] Specifically, the first plate portion 11 can be opposite to the battery pack in the height direction of the vehicle body 2 and be located below the battery pack. The first plate portion 11 has a certain thickness in the height direction of the vehicle body 2, and the first plate portion 11 can bear and protect the battery pack; the second plate portion 12 can be located on the peripheral side of the first plate portion 11, and the second plate portion 12 and the projection of the first plate portion 11 in the left and right directions of the vehicle body 2 can partially overlap, and the projection of the second plate portion 12 in the front and rear directions of the vehicle body 2 can cover the projection of the first plate portion 11 in the front and rear directions of the vehicle body 2. The second plate portion 12 has a certain thickness in the height direction of the vehicle body 2, and the second plate portion 12 can bear and prevent the vehicle body 2 structure located above it and the people and articles in the vehicle; and the first plate portion 11 and the second plate portion 12 are constructed as an integrally formed part, so that the bottom guard plate assembly 1 can be an integrated structure connected to the vehicle body 2.

[0049] According to the bottom guard plate assembly 1 of the utility model, the first plate portion 11 and the second plate portion 12 can be constructed as an integrally formed part, thereby improving the overall structural smoothness and surface flatness of the bottom guard plate assembly 1, achieving no joint gap, effectively reducing driving wind resistance and noise, improving vehicle driving comfort, saving energy consumption, and increasing the vehicle's cruising range. In addition, compared with the related art, the road excitation is transmitted to the subframe, which will cause the bottom guard plate connected to the subframe to move relative to it, causing pulling, squeezing, etc., resulting in the tearing of the bottom guard plate and failure of the connection, affecting the load-bearing and safety protection function. The bottom guard plate assembly 1 in the utility model is an integrated structure, which can enhance rigidity and strength, and can better resist the impact and vibration force transmitted from the outside world and the vehicle body 2, thereby helping to improve the safety of the battery pack and the whole vehicle.

[0050] like Figure 1-Figure 3 As shown, according to some embodiments of the utility model, a mounting platform 13 suitable for connecting with the vehicle body 2 is provided on the first plate portion 11 and / or the second plate portion 12, and the mounting platform 13 includes: a sinking platform 131, one end of the sinking platform 131 is connected to the first plate portion 11 or the second plate portion 12, the sinking platform 131 forms a accommodating cavity 131a that passes through the height direction of the vehicle body 2, and the cross-sectional area of ​​the sinking platform 131 gradually decreases in the direction away from the first plate portion 11 and the second plate portion 12.

[0051] Specifically, the mounting platform 13 is suitable for connecting with the vehicle body 2 to realize the assembly between the bottom guard plate assembly 1 and the vehicle body 2. In this embodiment, the mounting platform 13 can be provided only on the first plate portion 11, while the second plate portion 12 is not provided with the mounting platform 13; in this embodiment, the mounting platform 13 can also be provided only on the second plate portion 12, while the first plate portion 11 is not provided with the mounting platform 13; in this embodiment, the mounting platform 13 can also be arranged in such a way that the mounting platform 13 is provided on both the first plate portion 11 and the second plate portion 12. Among them, the mounting platform 13 includes a sinking platform 131, and the sinking platform 131 forms a accommodating cavity 131a that passes through in the height direction of the vehicle body 2, and the cross-sectional area of ​​the sinking platform 131 gradually decreases in the direction away from the first plate portion 11 and the second plate portion 12, so that the force conduction and force dispersion performance of the sinking platform 131 can be improved, and the sinking platform 131 can have good rigidity, strength and bending and torsion resistance, thereby improving the connection reliability and stability between the bottom guard plate assembly 1 and the vehicle body 2. In addition, constructing the sinker 131 as a cavity structure is also beneficial to the lightweight of the entire vehicle and helps to further increase the vehicle's cruising range.

[0052] In addition, in some specific embodiments of the present invention, the projection of the sinker 131 in the height direction of the vehicle body 2 is constructed as a circular ring, so that the force distribution of the sinker 131 is uniform, local stress concentration can be avoided, and the compression resistance and deformation resistance of the sinker 131 can be effectively improved.

[0053] In some other specific embodiments of the utility model, a plurality of anti-collapse holes 131b arranged at intervals in the circumferential direction are formed at the other end of the sink 131 to optimize the anti-collapse capability of the sink 131, which can further improve the connection reliability and stability between the bottom guard plate assembly 1 and the vehicle body 2.

[0054] like Figure 3 As shown, according to some embodiments of the present invention, the mounting platform 13 further includes: an insert 132 , a mounting hole is formed at the free end of the sink 131 , and the insert 132 is disposed in the mounting hole.

[0055] Specifically, a mounting hole is formed at the free end of the sink 131 (i.e., the end of the sink 131 that is away from the first plate portion 11 and the second plate portion 12 in the height direction of the vehicle body 2), and the insert 132 can be disposed in the mounting hole and fit with the inner wall of the mounting hole. The insert 132 can support and strengthen the free end of the sink 131. For example, the insert 132 can be a metal part to enhance the rigidity, strength and deformation resistance of the free end of the sink 131. In this way, the sink 131 can be prevented from tearing and fatigue damage caused by pulling and squeezing, and the service life of the sink 131 can be effectively extended to ensure the stable connection between the bottom guard plate assembly 1 and the vehicle body 2.

[0056] In addition, if Figure 4As shown, in some specific embodiments of the present invention, the insert 132 includes a first section 1321 extending in the height direction of the vehicle body 2 and a second section 1322 connected to the first section 1321, the second section 1322 intersects with the extension direction of the first section 1321 and defines a first step; at least part of the inner wall of the mounting hole is recessed radially away from the axis and defines a second step suitable for abutting against the first step. By providing the first step and the second step, the assembly positioning accuracy and reliability between the insert 132 and the sink 131 can be improved, the anti-slip performance of the insert 132 can be improved, and the connection between the insert 132 and the sink 131 can be ensured to be stable and reliable.

[0057] like Figure 3 As shown, according to some embodiments of the present invention, reinforcing ribs 133 are provided between the outer periphery of the sink 131 and the first plate portion 11 and / or the second plate portion 12 .

[0058] Specifically, the reinforcing ribs 133 may be configured as a plurality of reinforcing ribs 133 arranged at intervals in the circumferential direction of the sinking platform 131, and at least a portion of each reinforcing rib 133 may extend on the outer circumferential surface of the sinking platform 131, and at least another portion may extend on the end surface of the first plate portion 11 and / or the second plate portion 12. The reinforcing ribs 133 may play a good supporting and reinforcing role between the sinking platform 131 and the first plate portion 11 and / or the second plate portion 12, may improve the vibration reduction performance of the sinking platform 131, and reduce the fatigue degree of the sinking platform 131, may extend the service life of the sinking platform 131, and improve the durability and reliability of the mounting platform 13.

[0059] In addition, in some specific embodiments of the present invention, the reinforcing ribs 133 are located on at least a portion of the outer peripheral surface of the sink 131, and the cross-sectional area gradually increases in the direction approaching the first plate portion 11 and the second plate portion 12. In this way, the support and reinforcement performance of the reinforcing ribs 133 on the sink 131 can be improved.

[0060] like Figure 1 and Figure 2 As shown, according to some embodiments of the utility model, a first guide groove 111 is formed on the first plate portion 11, and the first guide groove 111 includes: a first groove 1111 extending in the front-to-rear direction of the vehicle body 2 and a second groove 1112 extending in the left-to-right direction of the vehicle body 2, and the first groove 1111 is connected to the second groove 1112.

[0061] Specifically, a first guide groove 111 may be formed on the side of the first plate portion 11 that is away from the battery pack in the thickness direction (defined in the vehicle height direction, as the lower side of the first plate portion 11), and the first guide groove 111 includes a first groove 1111 extending in the front-rear direction of the vehicle body 2 and a second groove 1112 extending in the left-right direction of the vehicle body 2. By providing the first guide groove 111, on the one hand, when the airflow at the bottom of the vehicle flows through the first plate portion 11 during the driving process of the vehicle, the first guide groove 111 can effectively guide the air flow under the first plate portion 11, reduce the air resistance under the first plate portion 11, so as to play a good role in improving the aerodynamic performance of the vehicle, thereby reducing the wind noise and wind resistance when the vehicle is driving, saving energy consumption, and improving the vehicle's cruising range and driving stability; on the other hand, the first guide groove 111 can also enhance the structural rigidity and strength of the first plate portion 11, improve the deformation resistance of the first plate portion 11, so as to enhance the load-bearing and protection reliability of the battery pack.

[0062] like Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the second plate portion 12 is formed with second guide grooves 121 spaced apart in the left-right direction of the vehicle body 2 and extending substantially along the front-rear direction of the vehicle body 2 .

[0063] Specifically, a plurality of second guide grooves 121 may be formed on the side of the second plate portion 12 away from the interior of the vehicle in the thickness direction (defined in the vehicle height direction as the lower side of the second plate portion 12), and the plurality of second guide grooves 121 are arranged at intervals in the left-right direction of the vehicle body 2. The second guide grooves 121 may form a plurality of guide air ducts. When the vehicle is traveling, the airflow at the bottom of the vehicle flows through the second plate portion 12 and may be discharged to the rear of the vehicle along the plurality of guide air ducts. In this way, the mutual influence between the airflows is reduced, the orderliness of the gas streamlines is ensured, and the tendency of the airflow to form turbulence when leaving the guard plate can be eliminated, thereby further reducing the vehicle wind resistance and improving the cruising range.

[0064] It should be pointed out that the above-mentioned second guide groove 121 generally extends along the front-rear direction of the vehicle body 2, and can be completely extended along the front-rear direction of the vehicle body 2 or extended at an angle, but the inclination angle is less than or equal to 45°. Exemplarily, the inclination angle of part of the second guide groove 121 can be 15°, 30°, etc.

[0065] Preferably, in some specific embodiments of the present invention, the two second guide grooves 121 located at the outermost edges in the left-right direction of the vehicle body 2 are constructed to extend obliquely away from the adjacent second guide grooves 121 in the direction from front to rear of the vehicle body 2, so as to further ensure the orderliness of the gas streamlines and further optimize the vehicle's ability to reduce wind resistance.

[0066] In addition, while ensuring the wind resistance performance, by providing the first guide groove 111 and the second guide groove 121, the production cost and weight of the whole vehicle can be reduced, and energy consumption and economic costs can be saved.

[0067] In addition, in some other specific embodiments of the present invention, an unloading groove 122 extending in the left-right direction of the vehicle body 2 is formed on the second plate portion 12, and the unloading groove 122 is located on the side of the second guide groove 121 away from the first plate portion 11 in the front-rear direction of the vehicle body 2. The unloading groove 122 can absorb the torsional force of the vehicle body 2 and avoid transmitting the torsional force to other components of the bottom guard plate assembly 1, thereby effectively improving the overall torsion and tensile resistance of the bottom guard plate assembly 1, helping to protect the overall integrity of the bottom guard plate assembly 1 and prolonging the service life of the bottom guard plate assembly 1.

[0068] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the bottom guard plate assembly 1 further includes: a connecting member 14 , which is disposed on the mounting platform 13 and is suitable for connecting to the vehicle body 2 .

[0069] Specifically, the connector 14 can be arranged on the mounting platform 13, at least part of the connector 14 can be accommodated in the accommodating cavity 131a of the sink 131, and at least another part of the connector 14 can extend out of the accommodating cavity 131a and be connected to the vehicle body 2. By providing the connector 14, the bottom guard plate assembly 1 can be fastened to the vehicle body 2 to form an integral structure, which can improve the overall rigidity of the vehicle body 2 and enhance the stability and safety of the vehicle. At the same time, since the connector 14 is located on the mounting platform 13, the load of the vehicle body 2 can be transferred to the mounting platform 13 through the connector 14, and the mounting platform 13 can share and evenly disperse the load to further improve the stability and safety of the vehicle during driving.

[0070] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the connecting member 14 includes a first rod 141 and a second rod 142 .

[0071] Among them, the first rod body 141 is accommodated in the accommodating cavity 131a; the second rod body 142 is connected to the first rod body 141, and the second rod body 142 extends in a direction away from the first plate portion 11 and the second plate portion 12, and is suitable for connecting with the vehicle body 2; the diameter of the first rod body 141 is larger than the diameter of the second rod body 142, and the first rod body 141 and the second rod body 142 are coaxially arranged.

[0072] Specifically, the first rod 141 and the second rod 142 can be coaxially arranged and extend in the height direction of the vehicle body 2. The first rod 141 is accommodated in the accommodating cavity 131a of the sink 131, and the second rod 142 extends out of the accommodating cavity 131a and can be connected to the vehicle body 2 by means of threaded matching. For example, the outer periphery of the second rod 142 can be formed with a first thread, and the first thread can be matched with the second thread inside the welding nut 16 to fix at least part of the vehicle body 2 structure between the second rod 142 and the welding nut 16, so that the bottom guard plate assembly 1 can be connected and fixed to the vehicle body 2 as a whole. The diameter of the first rod 141 is larger than the diameter of the second rod 142, so that a limiting step 1421 can be formed between the first rod 141 and the second rod 142. The limiting step 1421 can play a good positioning role in the connection and matching between the second rod 142 and the vehicle body 2, which is conducive to improving the assembly accuracy between the bottom guard plate assembly 1 and the vehicle body 2.

[0073] In addition, in some specific embodiments of the present utility model, the vehicle body 2 includes a subframe and a connecting bracket 21, the connecting bracket 21 is connected to the subframe, and at least a portion of the connecting bracket 21 is disposed between the second rod 142 and the welding nut 16, so that the bottom guard assembly 1 can be connected to the subframe through the second rod 142, the welding nut 16 and the connecting bracket 21. Among them, the connecting bracket 21 can be correspondingly constructed to extend along the front-to-back direction of the vehicle body 2, extend in the left-right direction of the vehicle body 2, and / or extend obliquely, etc., according to the assembly positioning and position requirements of the bottom guard assembly 1 and the subframe, so that the assembly convenience and accuracy between the bottom guard assembly 1 and the subframe can be improved.

[0074] In some other specific embodiments of the utility model, a rubber coating layer is provided on the outer periphery of the second rod body 142, which can increase the connection strength and reliability between the second rod body 142 and the vehicle body 2, prevent the torque attenuation of the second rod body 142 caused by the bouncing of the subframe, and improve the stability of the connection between the bottom guard plate assembly 1 and the vehicle body 2.

[0075] like Figure 4 and Figure 5 As shown, according to some embodiments of the present invention, the bottom guard plate assembly 1 further includes: a buffer member 15 , and the buffer member 15 is disposed between the first rod body 141 and the insert 132 .

[0076] Specifically, the buffer 15 can be arranged between the first rod body 141 and the insert 132. The buffer 15 and the insert 132 can be a clearance fit in the radial direction and an interference fit in the axial direction. In this way, when the vehicle is driving, when the uneven road surface and bumps cause the vehicle body 2 to vibrate, the buffer 15 can absorb the vibration of the vehicle body 2 in multiple directions (such as the height direction of the vehicle body 2, the front and rear direction of the vehicle body 2, and the left and right direction of the vehicle body 2) to achieve good vibration reduction and abnormal noise prevention effects, thereby optimizing the bottom guard plate assembly 1 and the shock absorption and noise reduction performance of the entire vehicle, and improving driving comfort.

[0077] In addition, in some specific embodiments of the present invention, the buffer 15 is constructed as a rubber part. Since rubber parts have the advantages of good elasticity, good durability and low cost, therefore, by constructing the buffer 15 as a rubber part, it is beneficial to ensure that the buffer 15 has good working performance, prolongs its service life and saves economic costs.

[0078] like Figure 4 and Figure 5 As shown, in some other specific embodiments of the present invention, a washer 1411 is disposed on the outer periphery of the first rod body 141, and the washer 1411 is located on the side of the buffer 15 that is axially close to the first plate portion 11 and the second plate portion 12. The washer 1411 can position and prevent the buffer 15 from falling off, and can increase the connection tightness between the connecting member 14 and the mounting platform 13.

[0079] like Figure 1-Figure 5 As shown, according to the vehicle of the second aspect of the utility model, the vehicle includes: the bottom guard plate assembly 1 described in any one of the above embodiments, and the technical effect produced is consistent with that in the above embodiments, which will not be repeated here.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bottom guard plate assembly, characterized in that: include: A first plate portion (11) and a second plate portion (12), wherein the first plate portion (11) and the second plate portion (12) are integrally formed, the first plate portion (11) is located below a battery pack and is suitable for carrying and protecting the battery pack, the second plate portion (12) is located on the peripheral side of the first plate portion (11), and the first plate portion (11) and the second plate portion (12) are both connected to the vehicle body.

2. The bottom guard plate assembly according to claim 1, characterized in that: The first plate portion (11) and / or the second plate portion (12) is provided with a mounting platform (13) suitable for connecting with the vehicle body, and the mounting platform (13) comprises: A sinker, one end of which is connected to the first plate portion (11) or the second plate portion (12), the sinker forms a receiving cavity (131a) that passes through in the height direction of the vehicle body, and the cross-sectional area of ​​the sinker gradually decreases in a direction away from the first plate portion (11) and the second plate portion (12).

3. The bottom guard plate assembly according to claim 2, characterized in that: The mounting platform (13) further comprises: an insert (132); a mounting hole is formed at the free end of the sink platform, and the insert (132) is arranged in the mounting hole.

4. The bottom guard plate assembly according to claim 2, characterized in that: Reinforcing ribs (133) are provided between the outer periphery of the sinking platform and the first plate portion (11), and / or the second plate portion (12).

5. The bottom guard plate assembly according to claim 1, characterized in that: A first guide groove (111) is formed on the first plate portion (11), the first guide groove (111) comprising: a first groove (1111) extending in the front-rear direction of the vehicle body and a second groove (1112) extending in the left-right direction of the vehicle body, and the first groove (1111) is connected to the second groove (1112).

6. The bottom guard plate assembly according to claim 1, characterized in that: The second plate portion (12) is formed with a second guide groove (121) which is spaced apart in the left-right direction of the vehicle body and extends substantially along the front-rear direction of the vehicle body.

7. The bottom guard plate assembly according to claim 3, characterized in that: Also includes: A connecting member (14), wherein the connecting member (14) is arranged on the mounting platform (13) and is suitable for being connected to the vehicle body.

8. The bottom guard plate assembly according to claim 7, characterized in that: The connecting member (14) comprises: A first rod body (141), the first rod body (141) being received in the receiving cavity (131a); a second rod (142), the second rod (142) being connected to the first rod (141), the second rod (142) extending in a direction away from the first plate portion (11) and the second plate portion (12), and being suitable for being connected to the vehicle body; The diameter of the first rod body (141) is greater than the diameter of the second rod body (142), and the first rod body (141) and the second rod body (142) are coaxially arranged.

9. The bottom guard plate assembly according to claim 8, characterized in that: Also includes: A buffer component (15), wherein the buffer component (15) is arranged between the first rod body (141) and the insert (132).

10. A vehicle, characterized in that: include: The bottom guard plate assembly according to any one of claims 1 to 9.

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