CN117445830B - New energy automobile bottom guard board assembly - Google Patents
New energy automobile bottom guard board assembly Download PDFInfo
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- CN117445830B CN117445830B CN202311786039.6A CN202311786039A CN117445830B CN 117445830 B CN117445830 B CN 117445830B CN 202311786039 A CN202311786039 A CN 202311786039A CN 117445830 B CN117445830 B CN 117445830B
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- 238000013016 damping Methods 0.000 claims description 39
- 230000001681 protective effect Effects 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000035939 shock Effects 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000004575 stone Substances 0.000 description 29
- 230000006378 damage Effects 0.000 description 11
- 230000017525 heat dissipation Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 238000009434 installation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- -1 silt Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
- B60R13/08—Insulating elements, e.g. for sound insulation
- B60R13/0861—Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/023—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Vibration Dampers (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The application discloses backplate assembly at bottom of new energy automobile, including mounting panel and protection shield, the chassis connection of mounting panel and car is equipped with in the mounting panel and places the chamber, places the chamber and runs through the mounting panel bottom downwards to form the opening, the protection shield setting is being placed the intracavity and is suitable for closing the opening, and the protection shield sets up for the activity, when the protection shield received the external effort, the protection shield was suitable for along upper and lower direction and is being placed the intracavity. The protection device has the advantages of ensuring light weight and effectively improving the protection performance of the bottom protection plate.
Description
Technical Field
The application relates to the technical field of guard plates, in particular to a new energy automobile bottom guard plate assembly.
Background
The underbody shield is a protective device mounted on the bottom of an automobile, usually made of plastic or metal, for protecting important parts of the bottom of the automobile from road surface crushed stone, mud and other impurities. It can also reduce wind resistance and reduce energy consumption of automobile.
The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel automobile-mounted power device) and integrates the advanced technology in the aspects of power control and driving of the automobile, and the formed technical principle is advanced, and the automobile has a new technology and a new structure. In the present new energy automobiles, electric energy driving is the most common mode, and most of the chassis of the new energy automobiles are provided with battery packs, and the battery packs are the assemblies with the highest manufacturing cost in the new energy automobiles, so that the protection of the battery packs is extremely important, and the protection performance of the bottom guard plate needs to be further provided.
The mode that the protection performance adopted at present improves at the bottom of backplate is mostly the backplate at the bottom of the bodiness, but this is the weight of backplate at the bottom of can being great promotion of this, and to new energy automobile, whole car weight and its range are closely related, and great weight can lead to new energy automobile's range to receive great influence, can not lose. Therefore, how to manufacture a lightweight and strong protective bottom guard is an urgent problem to be solved.
Disclosure of Invention
The utility model aims at providing a light in weight and protection performance are strong, and new energy automobile bottom guard board assembly that anti striking and anti striking ability are strong.
In order to achieve the above purpose, the technical scheme adopted in the application is as follows: the utility model provides a backplate assembly at bottom of new energy automobile, includes mounting panel and protection shield, the mounting panel with the chassis of car is connected, be equipped with in the mounting panel and place the chamber, place the chamber and run through downwards the mounting panel bottom to form the opening, the protection shield sets up place the intracavity and be suitable for to seal the opening, just the protection shield is the activity setting, works as when the protection shield receives the external force, the protection shield is suitable for along upper and lower direction and is in place the intracavity and remove.
Most of the prior art bottom guard plates are integrally formed and fixed on the bottom plate, so that when the bottom guard plates are hit by foreign objects, the bottom guard plates counteract the kinetic energy of the hit objects mainly through the elastic deformation of the bottom guard plates, and the requirement on the rigidity of the bottom guard plates is high. When the bottom guard plate and the ground bulge caused by uneven ground collide or scratch, the bottom guard plate is fixed and cannot move, so that the bottom guard plate is greatly damaged, and the service life of the bottom guard plate is influenced. The bottom guard plate in the application comprises a mounting plate and a guard plate, wherein the mounting plate plays a role in connecting with a chassis, the guard plate plays a role in protecting, the mounting plate and the guard plate are movably connected, and particularly the guard plate can move in a placing cavity of the mounting plate along the up-down direction. Therefore, when this application received the foreign object to strike, the protection shield can move on the mounting panel with the situation, consequently strike the kinetic energy that the part need be converted into the protection shield of the kinetic energy of thing, and then reduce the energy that needs to be consumed by the protection shield through self elastic deformation, reduce the rigidity requirement to the protection shield. Moreover, when the protruding department of protection shield and ground of this application takes place to scratch and collide, its accessible moves up the interference degree that reduces and protruding department, and then effectively reduces the damage. Therefore, the bottom guard plate of the novel energy automobile has the advantages that the overall protection performance is improved, meanwhile, the rigidity requirement on the guard plate can be reduced, the guard plate does not need to be thickened in a large range, the light weight of the overall structure is further guaranteed, and the novel energy automobile can not cause great influence on the endurance mileage of the novel energy automobile.
Preferably, the bottom of the protection plate is provided with a first contact surface and a second contact surface, the first contact surface is close to the left wheel of the automobile, the first contact surface is an inclined surface with high left and low right, the second contact surface is close to the right wheel of the automobile, and the second contact surface is an inclined surface with high right and low left. The structure can effectively reduce the included angle between the hit object and the bottom of the protection plate when the hit object is contacted with the bottom of the protection plate, so that the probability of bouncing is increased, and the structure can also reduce the inward component force of the hit object perpendicular to the protection plate, so that the strength requirement on the protection plate is effectively reduced, and better protection performance of the protection plate with the same strength can be realized.
As another preferable mode, a third contact surface is further arranged between the first contact surface and the second contact surface, the third contact surface is horizontally arranged, and no matter the protection plate moves to any height in the placing cavity, the third contact surface always protrudes out of the bottom of the mounting plate. The inventor of the application has provided a third contact surface between the first contact surface and the second contact surface and the third contact surface is a horizontal surface, so that it has a good ground impact resistance. And no matter the protection plate moves to any height in the placing cavity, the third contact surface always protrudes out of the bottom of the mounting plate, so that the ground impact resistance of the bottom protection plate under any condition is effectively ensured.
Still preferably, an elastic damping component is arranged between the protection plate and the inner wall of the top end of the mounting plate and between the protection plate and the inner wall of the bottom end of the mounting plate, and the inner wall of the top end of the mounting plate and the inner wall of the bottom end of the mounting plate are suitable for realizing the suspension clamping of the protection plate through the elastic damping component; when the protection plate moves upwards, the elastic cushioning component arranged above contracts, the elastic cushioning component arranged below stretches, and the directions of acting forces provided by the elastic cushioning components above and below to the protection plate are downward; conversely, when the protection board moves downwards, the elastic cushioning component arranged above stretches, the elastic cushioning component arranged below contracts, and the directions of acting forces provided by the elastic cushioning component above and below to the protection board are upward. Therefore, all be provided with elasticity bradyseism subassembly between protection shield and the mounting panel top inner wall to and between protection shield and the mounting panel bottom inner wall, thereby make the protection shield unable to collide with between mounting panel bottom inner wall and the mounting panel top inner wall, thereby avoid the appearance of noise and increase the life of both. In addition, the structure can effectively reduce the total movement amount of the protection plate during jolt and impact, and increase the energy consumption of the unit movement amount of the protection plate, so that the feeling of the driver caused by the movement of the protection plate during running is effectively reduced, the protection plate is effectively ensured to consume larger energy through smaller movement amount when the protection plate is impacted, and the impact resistance of the protection plate is ensured.
Still preferably, the elastic cushioning component comprises a first fixing seat, a movable shaft, a damping structure, an elastic piece and a second fixing seat, wherein the first fixing seat is fixedly connected with the inner wall of the top end of the mounting plate or the inner wall of the bottom end of the mounting plate, the second fixing seat is fixedly connected with the protection plate, the movable shaft is fixedly installed on the first fixing seat, the damping structure is fixedly installed on the second fixing seat, the damping structure is embedded in the protection plate, the end part of the movable shaft is suitable for being axially inserted into the damping structure, the movable shaft is suitable for moving along the vertical direction relative to the damping structure, the elastic piece is sleeved on the movable shaft, one end of the elastic piece is propped against the first fixing seat, and the other end of the elastic piece is propped against the second fixing seat. The structure is simple and stable, convenient to install and compact and orderly.
Further preferably, the top end surface of the mounting plate is provided with a mounting hole, and the mounting hole penetrates through the top end wall of the mounting plate along the up-down direction, so that the mounting hole is communicated with the placing cavity, a fan assembly is arranged in the mounting hole, and the fan assembly is suitable for blowing air towards the chassis of the automobile. If the bottom guard plate is a traditional bottom guard plate, the bottom guard plate needs to be opened to ensure the construction of an air duct in order to arrange the mounting holes and the fan assembly, however, the opening of the bottom guard plate can cause the protection performance of the bottom guard plate to be greatly reduced, particularly the position where the fan assembly is arranged, and stones can directly penetrate through the fan assembly to hit the automobile chassis, so that the damage probability of battery packs and other parts on the chassis is increased. Moreover, the stones and the protrusions on the bottom surface may directly strike the fan assembly, which may lead to a drastic reduction in the service life of the fan assembly. The mounting holes and the fan assembly in the embodiment increase the heat dissipation function of the bottom guard plate on the premise of not affecting the protection performance of the bottom guard plate.
Further preferably, a vent is arranged on the side wall of the mounting plate, and the vent penetrates through the side wall of the mounting plate along the left-right direction so that the vent is communicated with the placing cavity; elastic shock absorption components are arranged between the protection plate and the inner wall at the top end of the mounting plate and between the protection plate and the inner wall at the bottom end of the mounting plate, the elastic shock absorption components are suitable for realizing limit of the protection plate and the mounting plate along the left-right direction, and gaps are arranged between the side walls of the protection plate and the side inner walls of the mounting plate; the elastic damping component is suitable for always keeping clearance setting between the protection plate and the inner wall at the top end of the mounting plate and between the protection plate and the inner wall at the bottom end of the mounting plate. The elastic damping component can realize limit of the protection plate and the mounting plate along the left-right direction, and a gap is arranged between the side wall of the protection plate and the inner wall of the side face of the mounting plate, so that a gap is always reserved between the side wall of the protection plate and the inner wall of the side face of the mounting plate; moreover, due to the existence of the elastic damping component, the protection plate and the inner wall at the top end of the mounting plate and the inner wall at the bottom end of the mounting plate are not contacted with each other all the time, namely, gaps are formed between the protection plate and the inner wall at the top end of the mounting plate and between the protection plate and the inner wall at the bottom end of the mounting plate all the time. The structure is used for constructing a stable air duct and ensuring the stable circulation of air, thereby realizing stable and efficient heat dissipation.
Further preferably, the fan assembly comprises a mounting frame, a rotating shaft and a plurality of blades, wherein the mounting frame is provided with two mounting frames and is respectively arranged at one end part of the mounting hole, the rotating shaft is arranged between the two mounting frames, the rotating shaft can rotate, the blades are provided with a plurality of blades, and the blades are suitable for being uniformly arranged on the side wall of the rotating shaft along the circumferential direction. The structure is simple, the functions are efficient and stable, the whole structure is easy to understand, the installation is convenient, the maintenance and the replacement are convenient, and the cost is low.
Further preferably, the bottom edge of the mounting plate extends inwards to form a limiting part, and the horizontal projection of the limiting part and the horizontal projection of the protection plate overlap, so that the limiting part is suitable for limiting the protection plate to move downwards to be separated from the mounting plate. The structure is used for limiting the moving range of the protection plate, so that the connection stability between the protection plate and the mounting plate is improved, the situation that the protection plate and the mounting plate are separated when in use is effectively avoided, and a stable mounting carrier is also provided for the elastic cushioning component.
Further preferably, a circle of downward protruding insertion blocks are arranged at the bottom of the protection plate, the insertion grooves corresponding to the insertion blocks are arranged on the limiting parts, the insertion blocks are suitable for moving along the up-down direction relative to the insertion grooves, the insertion blocks and the insertion grooves are matched and suitable for sealing the placing cavity, and the insertion blocks are always inserted into the insertion grooves no matter the protection plate moves to any height in the placing cavity; the mounting plate is characterized in that a mounting hole is formed in the top end face of the mounting plate, a vent is formed in the side wall of the mounting plate, and a filter screen is arranged in each of the mounting hole and the vent. The structure can effectively prevent stones, sediment, dust and the like from entering the placing cavity in the using process, so that the bottom guard plate is ensured to stably realize the protection function. And no matter the protection shield is in any position, the plug block is always inserted in the plug groove, so that the long-time continuation of the sealing effect is reliably ensured, and the service life of the bottom protection shield is effectively prolonged. And, the filter screen can effectively avoid stone, silt, dust etc. to get into through the vent and place in the chamber 11, even if there is a small amount of impurity to get into, the filter screen in the mounting hole also can further avoid these impurity direct movement to on the battery package and other spare part on the vehicle chassis, avoids causing the damage to spare part in the car to effectively avoid producing great harm and great economic loss.
Compared with the prior art, the beneficial effect of this application lies in:
this application has adopted the technical means that divide into mounting panel and protection shield with end backplate, and the mounting panel plays the function of being connected with the chassis, and the protection shield plays the function of protection, but and but be swing joint between mounting panel and the protection shield, specifically the protection shield can follow the upper and lower direction and carry out the activity at the intracavity of placing of mounting panel. Therefore, when the external object is hit, the protection plate moves in the same direction, so that part of the kinetic energy of the hit object needs to be converted into the kinetic energy of the protection plate, and the energy required to be consumed by the protection plate through self elastic deformation is reduced, and the protection performance is improved without thickening the protection plate. Moreover, when the convex parts of the ground are scratched and collided, the interference degree can be reduced through movement, so that the damage is effectively reduced. Therefore, the protection device has the advantage of effectively improving the protection performance of the bottom protection plate while ensuring the light weight.
Drawings
FIG. 1 is a schematic structural view of a bottom shield assembly of the present application.
FIG. 2 is a schematic view of another angle of the bottom shield assembly of the present application.
FIG. 3 is an exploded view of the bottom shield assembly of the present application.
Fig. 4 is a front view of the protection plate of the present application.
Fig. 5 is a schematic view of the protective plate of the present application mounted on a chassis and subjected to stone impact.
Fig. 6 is a schematic diagram comparing the protection plate of the present application with the prior art when being hit by stones.
Fig. 7 is a schematic structural view of the mounting plate of the present application.
FIG. 8 is a front view of the bottom shield assembly of the present application.
FIG. 9 is a cross-sectional view of a bottom shield assembly of the present application in one state.
Fig. 10 is an enlarged partial schematic view of fig. 9.
FIG. 11 is a cross-sectional view of the bottom shield assembly of the present application in another state.
Fig. 12 is an enlarged partial schematic view of fig. 11.
Fig. 13 is a schematic structural view of the protection plate, the mounting plate and the elastic member of the present application.
Fig. 14 is a cross-sectional view of the protective plate, mounting plate and spring assembly of the present application.
Fig. 15 is a schematic view showing the state of the protection plate, the mounting plate and the elastic member of the present application.
Fig. 16 is a schematic structural view of a fan assembly of the present application.
FIG. 17 is a schematic view of an air duct within a bottom shield of the present application.
In the figure: 1. a mounting plate; 11. a placement cavity; 12. an opening; 13. a mounting hole; 14. a vent; 15. a limit part; 151. a plug-in groove; 2. a protective plate; 21. a first contact surface; 22. a second contact surface; 22A, conventional contact surface; 23. a third contact surface; 24. a plug block; 3. an elastic damping component; 31. a first fixing seat; 32. a movable shaft; 33. a damping structure; 34. an elastic member; 35. the second fixing seat; 4. a fan assembly; 41. a mounting frame; 42. a rotating shaft; 43. a blade; 500. a left wheel; 600. a right wheel; 7. and (3) a filter screen.
Detailed Description
The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.
In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.
It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.
The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.
The underbody shield is a protective device mounted on the bottom of an automobile, usually made of plastic or metal, for protecting important parts of the bottom of the automobile from road surface crushed stone, mud and other impurities. It can also reduce wind resistance and reduce energy consumption of automobile.
The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel automobile-mounted power device) and integrates the advanced technology in the aspects of power control and driving of the automobile, and the formed technical principle is advanced, and the automobile has a new technology and a new structure. In the present new energy automobiles, electric energy driving is the most common mode, and most of the chassis of the new energy automobiles are provided with battery packs, and the battery packs are the assemblies with the highest manufacturing cost in the new energy automobiles, so that the protection of the battery packs is extremely important, and the protection performance of the bottom guard plate needs to be further provided.
The mode that the protection performance adopted at present improves at the bottom of backplate is mostly the backplate at the bottom of the bodiness, but this is the weight of backplate at the bottom of can being great promotion of this, and to new energy automobile, whole car weight and its range are closely related, and great weight can lead to new energy automobile's range to receive great influence, can not lose. Therefore, how to manufacture a lightweight and strong protective bottom guard is an urgent problem to be solved.
Accordingly, to solve the above-mentioned problems, as shown in fig. 1 to 17, preferred embodiments of the present application are as follows:
the utility model provides a backplate assembly at bottom of new energy automobile, includes mounting panel 1 and protection shield 2, and mounting panel 1 is connected with the chassis of car, is equipped with in the mounting panel 1 and places chamber 11, places chamber 11 and runs through mounting panel 1 bottom downwards to form opening 12, protection shield 2 sets up in placing chamber 11 and is suitable for closing opening 12, and protection shield 2 is the activity setting, when protection shield 2 receives the external force, protection shield 2 is suitable for along the upper and lower direction in placing chamber 11 and removes.
Most of the bottom guard plates in the prior art are integrally formed and fixed on the bottom plate, so that when the bottom guard plates are hit by foreign objects, the kinetic energy of the hit objects is counteracted mainly through the elastic deformation of the bottom guard plates, the anti-hit capacity of the bottom guard plates is improved only by thickening or changing materials, no matter which way is adopted, the weight of the bottom guard plates is generally increased greatly, and the driving mileage of the new energy automobile after the bottom guard plates are installed is greatly influenced. And in addition, once the bottom guard plate is collided or scratched with the raised part of the ground caused by uneven ground, the bottom guard plate cannot avoid the raised part because the bottom guard plate is fixed and cannot move, so that the bottom guard plate can be greatly damaged, and the service life of the bottom guard plate is influenced. The bottom guard plate in the application comprises a mounting plate 1 and a guard plate 2, wherein the mounting plate 1 plays a role in being connected with a chassis, the guard plate 2 plays a role in protecting, the mounting plate 1 and the guard plate 2 are movably connected, and particularly the guard plate 2 can move in a placing cavity 11 of the mounting plate 1 along the up-down direction. Therefore, when the bottom guard plate of the present application is hit by an external object, the guard plate 2 will move on the mounting plate 1 in a homeotropic manner, so that part of the kinetic energy of the hit object needs to be converted into the kinetic energy of the guard plate 2, thereby reducing the energy required to be consumed by the guard plate 2 through self elastic deformation and reducing the rigidity requirement on the guard plate 2. Moreover, when the bulge of the protection board 2 and the ground is scratched and collided, the interference degree of the bulge can be reduced through upward movement, and the damage can be effectively reduced. Therefore, the bottom guard plate of the novel energy automobile has the advantages that the overall protection performance is improved, meanwhile, the rigidity requirement on the protective plate 2 can be reduced, the protective plate 2 does not need to be thickened in a large range, the light weight of the overall structure is further guaranteed, and the novel energy automobile can not cause great influence on the endurance mileage of the novel energy automobile.
Further, as shown in fig. 4 to 7, in the present embodiment, the bottom of the protection plate 2 is provided with a first contact surface 21 and a second contact surface 22, the first contact surface 21 is close to the left wheel 500 of the automobile, the first contact surface 21 is a slope with high left and low right, the second contact surface 22 is close to the right wheel 600 of the automobile, and the second contact surface 22 is a slope with high right and low left. During running of the automobile, the stone is splashed mostly because the tire rotates backwards to provide kinetic energy or the tire side is extruded to provide kinetic energy, and the direction of the stone splashing caused by the two conditions is backward and sideways respectively. Since the bottom guard plate is mounted on the chassis of the automobile between two wheels, most of stones impacting the bottom guard plate are provided with kinetic energy by extrusion of the side parts of the tire, and the included angle between the flight path of the stones and the bottom surface is small, that is, most of stones extruded by the left wheel 500 impact the right side of the bottom guard plate, and most of stones extruded by the right wheel 600 impact the left side of the bottom guard plate. The inventor of the present application has found this situation and made an improvement according to this actual situation, and the contact surface under the bottom guard plate is set to be inclined, and is low on the left side near the left wheel 500, and high on the right side near the right wheel 600. Therefore, as shown in fig. 6, X is the movement track of the stone, when the stone is hit on the bottom of the protection plate 2, the included angle between the second contact surface 22 which is an inclined surface and the movement track of the stone is α, and the included angle between the conventional contact surface 22A which is a horizontal surface and the movement track of the stone is β, and α is significantly smaller than β, so when the stone is hit on the bottom of the protection plate 2, compared with the prior art, the probability of occurrence of the jump is higher, that is, when the stone is hit on the bottom of the protection plate 2, the stone has a larger probability of occurrence of deflection of the movement track due to the excessively small angle, thereby reducing the impact force on the protection plate 2, visually representing that the stone is rubbed on the bottom of the protection plate 2, thereby being difficult to cause obvious damage to the protection plate 2, and accordingly, the impact resistance, protection performance and service life of the protection plate 2 can be significantly improved. Moreover, even if the stone continues to strike the protection plate 2 according to the movement path, the component of force of the vertical second contact surface 22 towards the inside of the protection plate 2 is smaller due to the smaller included angle, that is, the impact force applied to the protection plate 2 is smaller, and accordingly, the protection plate 2 can bear a larger impact force than the prior art, that is, the protection performance is better. And when the thickness of the protection plate 2 is unchanged, the path of the protection plate 2 through which the stone passes is increased, so that the possibility that the stone breaks through the protection plate 2 is effectively reduced, and the protection performance of the protection plate 2 is further ensured.
Further, in the present embodiment, a third contact surface 23 is further disposed between the first contact surface 21 and the second contact surface 22, the third contact surface 23 is disposed horizontally, and the third contact surface 23 always protrudes from the bottom of the mounting plate 1 no matter the protection plate 2 moves to any height in the placement cavity 11. Since both the first contact surface 21 and the second contact surface 22 are inclined surfaces, if the first contact surface 21 and the second contact surface 22 are directly connected, the connection between the two is a line, which may cause easy damage when the bottom of the protection plate 2 collides with the bottom surface. Therefore, to solve this technical problem, the inventors of the present application have provided a third contact surface 23 between the first contact surface 21 and the second contact surface 22, and the third contact surface 23 is a horizontal surface, so that it has a good ground impact resistance. And as shown in fig. 9-12, the third contact surface 23 always protrudes from the bottom of the mounting plate 1, regardless of the movement of the protective plate 2 to any height within the placement cavity 11. The structure is used for reliably ensuring that when the bulge of the bottom guard plate and the bottom surface collides, the collision part is the third contact surface 23, so that the ground impact resistance of the bottom guard plate in any condition is effectively ensured.
As shown in fig. 9-15, in this embodiment, an elastic damping component 3 is disposed between the protection plate 2 and the inner wall at the top end of the mounting plate 1, and between the protection plate 2 and the inner wall at the bottom end of the mounting plate 1, and the inner wall at the top end of the mounting plate 1 and the inner wall at the bottom end of the mounting plate 1 are suitable for implementing suspension clamping of the protection plate 2 through the elastic damping component 3; when the protection plate 2 moves upwards, the elastic cushioning component 3 arranged above contracts, the elastic cushioning component 3 arranged below stretches, and the directions of acting forces provided by the elastic cushioning component 3 above and below to the protection plate 2 are downward; conversely, when the protection plate 2 moves downward, the elastic cushioning member 3 disposed above stretches, the elastic cushioning member 3 disposed below contracts, and the directions of the forces applied to the protection plate 2 by the elastic cushioning members 3 disposed above and below are both upward. The above structure is used to achieve the movable connection between the protection plate 2 and the mounting plate 1. Moreover, since the automobile jolts in the driving process, the protection board 2 and the mounting plate 1 can always relatively displace in the automobile forming process, if not limited, the protection board 2 and the mounting plate 1 can be in a mutually collision state for a long time, so that the damage is quickened, the service life is greatly shortened, the excessive movement amount of the protection board 2 can also cause discomfort of a driver, and the noise generated during collision can also reduce the driving experience of the driver. Therefore, the inventor of the present application has set up above-mentioned specific structure, all is provided with elasticity bradyseism subassembly 3 between protection shield 2 and mounting panel 1 top inner wall to and between protection shield 2 and mounting panel 1 bottom inner wall, thereby make protection shield 2 unable and mounting panel 1 bottom inner wall and mounting panel 1 top inner wall between bump, thereby avoid the appearance of noise and increase both life. In addition, the elastic cushioning members 3 are arranged on two sides of the protective plate, so that the total movement amount of the protective plate 2 during jolt and during impact can be effectively reduced, the energy consumed by the protective plate 2 during unit movement is increased, the feeling of discomfort felt by a driver due to movement of the protective plate 2 in the driving process is effectively reduced, the protective plate 2 can be effectively ensured to consume larger energy through smaller movement amount during impact, and the impact resistance of the protective plate 2 is ensured.
Specifically, as shown in fig. 13-15, in this embodiment, the elastic cushioning component 3 includes a first fixing seat 31, a movable shaft 32, a damping structure 33, an elastic member 34 and a second fixing seat 35, where the first fixing seat 31 is fixedly connected with the top end inner wall of the mounting plate 1 or the bottom end inner wall of the mounting plate 1, the second fixing seat 35 is fixedly connected with the protection plate 2, the movable shaft 32 is fixedly installed on the first fixing seat 31, the damping structure 33 is fixedly installed on the second fixing seat 35, the damping structure 33 is embedded in the protection plate 2, the end of the movable shaft 32 is adapted to be axially inserted into the damping structure 33, the movable shaft 32 is adapted to move along the up-down direction relative to the damping structure 33, the elastic member 34 is sleeved on the movable shaft 32, one end of the elastic member 34 abuts against the first fixing seat 31, and the other end abuts against the second fixing seat 35. The structure is simple, the function is stable, the installation is simple and convenient, and the structure is compact. The first fixing seat 31 and the second fixing seat 35 are used for realizing the fixation of other parts in the elastic cushioning component 3, the elastic piece 34 adopts a spring, the collision between the first fixing seat 31 and the second fixing seat 35 can be effectively avoided, and the elastic piece 34 and the damping structure 33 can be matched for realizing the shock absorption, so that the abnormal sense caused by the movement of the protection board 2 when a user runs is reduced. In addition, the damping structure 33 is embedded in the protection plate 2, which can effectively ensure sufficient installation space, thereby reducing the thickness of the installation plate 1, reducing the weight of the installation plate 1, thereby reducing the overall weight of the bottom protection plate, further realizing light weight, and reducing the collision probability between the bottom protection plate and the bottom surface due to the reduction of the thickness of the installation plate 1. It should be noted that the damping structure 33 adopts a technical means that hydraulic oil flows in two chambers to generate resistance to achieve a damping effect, and the technical scheme is similar to the prior art, so that the understanding and reproduction of the technical scheme by those skilled in the art are affected without detailed description.
As shown in fig. 1, 3 and 7, in the present embodiment, a mounting hole 13 is provided on the top end surface of the mounting plate 1, the mounting hole 13 penetrates the top end wall of the mounting plate 1 in the up-down direction, so that the mounting hole 13 communicates with the placement cavity 11, and a fan assembly 4 is provided in the mounting hole 13, and the fan assembly 4 is adapted to blow air toward the chassis of the automobile. The structure is used for increasing the heat dissipation performance of the bottom guard plate. In the new energy automobile, in order to guarantee the normal work of battery package, the heat dissipation of battery package is especially important, in case the high temperature, the performance of battery will be discounted greatly, and this application sets up mounting hole 13 and fan subassembly 4 on mounting panel 1, alright very effectual heat dispersion of increasing end backplate to further guarantee the heat dissipation of battery package and other parts on the vehicle chassis, and then effectively guarantee the high-efficient stable long-term ageing of car and go. It should be noted that, in this embodiment, since the placement cavity 11 is disposed in the mounting plate 1 and the protection plate 2 has a protection effect, the mounting hole 13 of the penetrating structure does not have a great negative effect on the protection performance of the bottom protection plate. Specifically, if the bottom guard plate is a traditional bottom guard plate, in order to set the mounting holes 13 and the fan assembly 4, the bottom guard plate needs to be opened to ensure the construction of the air duct, however, opening the bottom guard plate can cause the protection performance of the bottom guard plate to be greatly reduced, especially the position where the fan assembly 4 is mounted, the stone can directly penetrate through the fan assembly 4 to hit the chassis of the automobile, so that the damage probability of a battery pack and other parts on the chassis is increased. Also, stones and bumps on the floor may directly strike the fan assembly 4, resulting in a dramatic reduction in the service life of the fan assembly 4. Therefore, the mounting holes 13 and the fan assembly 4 in this embodiment are provided to increase the heat dissipation function of the bottom guard without affecting the protection performance of the bottom guard.
Further, as shown in fig. 10, 12 and 17, in the present embodiment, a vent 14 is provided on the side wall of the mounting plate 1, and the vent 14 penetrates the side wall of the mounting plate 1 in the left-right direction so that the vent 14 communicates with the placement chamber 11; an elastic damping component 3 is arranged between the protection plate 2 and the inner wall at the top end of the mounting plate 1 and between the protection plate 2 and the inner wall at the bottom end of the mounting plate 1, the elastic damping component 3 is suitable for realizing limit of the protection plate 2 and the mounting plate 1 along the left-right direction, and a gap is arranged between the side wall of the protection plate 2 and the inner wall at the side surface of the mounting plate 1; the elastic damping component 3 is suitable for always keeping the clearance setting between the protection plate 2 and the inner wall of the top end of the mounting plate 1 and between the protection plate 2 and the inner wall of the bottom end of the mounting plate 1. The elastic damping component 3 can realize limit of the protection plate 2 and the mounting plate 1 along the left-right direction through the cooperation of the movable shaft 32 and the damping structure 33, and because the clearance is arranged between the side wall of the protection plate 2 and the side inner wall of the mounting plate 1, a clearance is always reserved between the side wall of the protection plate 2 and the side inner wall of the mounting plate 1, so that air outside the ventilation opening 14 can always flow into the placing cavity 11. Moreover, due to the existence of the first fixing seat 31, the second fixing seat 35 and the elastic piece 34, the protection plate 2 and the inner wall of the top end of the mounting plate 1 and the protection plate 2 and the inner wall of the bottom end of the mounting plate 1 are not contacted with each other all the time, that is, gaps are always reserved between the protection plate 2 and the inner wall of the top end of the mounting plate 1 and between the protection plate 2 and the inner wall of the bottom end of the mounting plate 1, so that air can always flow into the mounting hole 13 from the placing cavity 11, and then the fan assembly 4 blows the air to the chassis of the automobile. The structure is used for constructing a stable air duct and ensuring the stable circulation of air, thereby realizing stable and efficient heat dissipation.
Specifically, as shown in fig. 16, in the present embodiment, the fan assembly 4 includes the mounting frame 41, the rotating shaft 42 and the blades 43, the mounting frame 41 has two and is provided at one end portion of the mounting hole 13, the rotating shaft 42 is installed between the two mounting frames 41, and the rotating shaft 42 is rotatable, the blades 43 have a plurality, and the plurality of blades 43 are adapted to be uniformly provided on the side wall of the rotating shaft 42 in the circumferential direction. The structure is simple and stable, the installation is convenient, the operation is simple and convenient, and the heat dissipation effect is excellent. It should be noted that, in the present embodiment, the fan assembly 4 further includes electronic components such as a control motherboard, a sensor, and a switch, that is, the fan assembly 4 may be connected to a control system of an automobile, and a user may control the switch of the fan assembly 4 on a central control screen of an automobile interior, and control a usage mode of the fan assembly 4. Of course, in other embodiments, the fan assembly 4 may employ a separate operating system, i.e., the fan assembly 4 is directly connected to a power source on the vehicle, and the fan assembly 4 remains in operation at all times when the vehicle is started. In contrast, the fan assembly 4 in the present embodiment is more intelligent in use and lower in energy consumption, and the user can adjust the fan assembly according to the actual situation. The electronic components and the methods of use are all of the prior art and are not related to the invention itself, and therefore, will not be described in detail.
As shown in fig. 7 and 13, in the present embodiment, the bottom end edge of the mounting plate 1 is extended inward to form a limit portion 15, and the horizontal projection of the limit portion 15 and the horizontal projection of the protection plate 2 overlap, so that the limit portion 15 is adapted to limit the downward movement of the protection plate 2 out of the mounting plate 1. The structure is used for limiting the moving range of the protection plate 2, so that the connection stability between the protection plate 2 and the mounting plate 1 is improved, and the situation that the protection plate 2 and the mounting plate 1 are separated when in use is effectively avoided. In addition, the structure is simple and stable, the appearance is orderly, and a stable mounting carrier is provided for the elastic cushioning component 3.
Further, as shown in fig. 10 and 12, in this embodiment, the bottom of the protection plate 2 is provided with a plug block 24 extending along the edge of the protection plate 2 for a circle and protruding downward, the limit portion 15 is provided with a plug groove 151 corresponding to the plug block 24, the plug block 24 is adapted to move up and down relative to the plug groove 151, and the plug block 24 and the plug groove 151 cooperate to be adapted to seal the placement cavity 11, and the plug block 24 is always inserted into the plug groove 151 no matter the protection plate 2 moves to any height in the placement cavity 11. The plug block 24 and the plug groove 151 cooperate to realize the effective sealing of the bottom opening 12 of the placing cavity 11, so that stones, sediment, dust and the like can be effectively prevented from entering the placing cavity 11 in the use process, the elastic cushioning component 3 is damaged, and the bottom guard plate of the device cannot stably realize the protection function. Moreover, no matter the protection board 2 is positioned at any position, the plug block 24 is always inserted into the plug groove 151, i.e. the plug block 24 always keeps matching with the plug groove 151, so that the long-time continuation of the sealing effect is reliably ensured, and the service life of the bottom protection board of the application is effectively prolonged.
It should be noted that the top end surface of the mounting plate 1 is provided with a mounting hole 13, the side wall of the mounting plate 1 is provided with a vent 14, and the mounting hole 13 and the vent 14 are internally provided with a filter screen 7. The filter screen 7 can effectively avoid stone, silt, dust and the like to enter the placing cavity 11 through the ventilation opening 14, even if a small amount of impurities enter, the filter screen 7 in the mounting hole 13 can further avoid the impurities to directly move to a battery pack and other parts on the automobile chassis, damage to the parts in the automobile is avoided, and the manufacturing cost of the bottom guard plate is far lower than that of the parts in the automobile, so that the structure can effectively avoid the generation of larger use cost.
In this embodiment, the number of the mounting holes 13 at the top end of the mounting plate 1 and the fan assembly 4 is plural, so that the heat dissipation efficiency can be effectively ensured. And, correspondingly, the ventilation openings 14 are provided with a plurality of and relatively uniformly arranged on the side wall of the mounting plate 1, and the structure is used for effectively ensuring ventilation efficiency, so that the fan assembly 4 is matched for keeping long-time efficient heat dissipation. In addition, the elastic damping component 3 is also provided with a plurality of elastic damping components and is uniformly arranged around the edge of the protection board 2, and the elastic piece 34 in the elastic damping component 3 adopts a spring, and the elasticity coefficient of the spring can be specifically adjusted according to the weight of the protection board 2.
As shown in fig. 1, the edge of the mounting plate 1 is provided with a circle of connecting holes, and the connecting holes are used for realizing stable connection of the mounting plate 1 and the automobile bottom plate by matching with bolts. Of course, other manners of connecting the mounting plate 1 and the automobile floor may be realized by using a buckle or the like.
The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.
Claims (6)
1. New energy automobile end backplate assembly, its characterized in that: the automobile chassis comprises a mounting plate and a protective plate, wherein the mounting plate is connected with the automobile chassis, a placing cavity is arranged in the mounting plate, the placing cavity downwards penetrates through the bottom of the mounting plate, so that an opening is formed, the protective plate is arranged in the placing cavity and is suitable for sealing the opening, the protective plate is movably arranged, and when the protective plate is subjected to external acting force, the protective plate is suitable for moving in the placing cavity along the up-down direction; the bottom of the protection plate is provided with a first contact surface and a second contact surface, the first contact surface is close to the left wheel of the automobile, the first contact surface is an inclined surface with high left and low right, the second contact surface is close to the right wheel of the automobile, and the second contact surface is an inclined surface with high right and low left; a third contact surface is further arranged between the first contact surface and the second contact surface, the third contact surface is horizontally arranged, and no matter the protection plate moves to any height position in the placing cavity, the third contact surface always protrudes out of the bottom of the mounting plate; elastic shock absorption components are arranged between the protection plate and the inner wall of the top end of the mounting plate and between the protection plate and the inner wall of the bottom end of the mounting plate, and the inner wall of the top end of the mounting plate and the inner wall of the bottom end of the mounting plate are suitable for realizing suspension clamping of the protection plate through the elastic shock absorption components; when the protection plate moves upwards, the elastic cushioning component arranged above contracts, the elastic cushioning component arranged below stretches, and the directions of acting forces provided by the elastic cushioning components above and below to the protection plate are downward; conversely, when the protection plate moves downwards, the elastic cushioning component arranged above stretches, the elastic cushioning component arranged below contracts, and the directions of acting forces provided by the elastic cushioning components above and below to the protection plate are all upward; the elastic damping component is suitable for realizing limit of the protection plate and the mounting plate along the left-right direction, and a gap is arranged between the side wall of the protection plate and the inner wall of the side face of the mounting plate; the elastic damping component is suitable for always keeping clearance arrangement between the protection plate and the inner wall at the top end of the mounting plate and between the protection plate and the inner wall at the bottom end of the mounting plate; the bottom edge of the mounting plate extends inwards to form a limiting part, and the horizontal projection of the limiting part is overlapped with the horizontal projection of the protection plate, so that the limiting part is suitable for limiting the protection plate to move downwards and separate from the mounting plate; the bottom of the protection board is provided with a circle of downward protruding plug-in blocks extending along the edge of the protection board, the limiting part is provided with plug-in grooves corresponding to the plug-in blocks, the plug-in blocks are suitable for moving along the up-down direction relative to the plug-in grooves, the plug-in blocks and the plug-in grooves are matched and suitable for sealing the placing cavity, no matter the protection board moves to any height in the placing cavity, and the plug-in blocks are always inserted into the plug-in grooves.
2. The new energy automobile end guard assembly of claim 1, wherein: the elastic damping component comprises a first fixing seat, a movable shaft, a damping structure, an elastic piece and a second fixing seat, wherein the first fixing seat is fixedly connected with the inner wall of the top end of the mounting plate or the inner wall of the bottom end of the mounting plate, the second fixing seat is fixedly connected with the protection plate, the movable shaft is fixedly installed on the first fixing seat, the damping structure is fixedly installed on the second fixing seat, the damping structure is embedded in the protection plate, the end part of the movable shaft is suitable for being axially inserted into the damping structure, the movable shaft is suitable for moving along the vertical direction relative to the damping structure, the elastic piece is sleeved on the movable shaft, one end of the elastic piece is propped against the first fixing seat, and the other end of the elastic piece is propped against the second fixing seat.
3. The new energy automobile end guard assembly of claim 1, wherein: the mounting plate is characterized in that a mounting hole is formed in the top end face of the mounting plate, the mounting hole penetrates through the top end wall of the mounting plate in the vertical direction, so that the mounting hole is communicated with the placing cavity, a fan assembly is arranged in the mounting hole, and the fan assembly is suitable for blowing air towards the chassis of the automobile.
4. A new energy automobile end guard assembly as claimed in claim 3, wherein: the side wall of the mounting plate is provided with a vent, and the vent penetrates through the side wall of the mounting plate along the left-right direction so that the vent is communicated with the placing cavity.
5. A new energy automobile end guard assembly as claimed in claim 3, wherein: the fan assembly comprises a mounting frame, a rotating shaft and blades, wherein the mounting frame is provided with two mounting holes and is respectively arranged at one end part of the mounting holes, the rotating shaft is arranged between the two mounting frames, the rotating shaft can rotate, the blades are provided with a plurality of blades, and the blades are suitable for being uniformly arranged on the side wall of the rotating shaft along the circumferential direction.
6. The new energy automobile end guard assembly of claim 1, wherein: the mounting plate is characterized in that a mounting hole is formed in the top end face of the mounting plate, a vent is formed in the side wall of the mounting plate, and a filter screen is arranged in each of the mounting hole and the vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311786039.6A CN117445830B (en) | 2023-12-25 | 2023-12-25 | New energy automobile bottom guard board assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311786039.6A CN117445830B (en) | 2023-12-25 | 2023-12-25 | New energy automobile bottom guard board assembly |
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| CN117445830A CN117445830A (en) | 2024-01-26 |
| CN117445830B true CN117445830B (en) | 2024-03-15 |
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| CN117445830A (en) | 2024-01-26 |
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