Floor assembly for electric vehicle

A technology for electric vehicles and floors, applied to vehicle parts, electric power devices, power devices, etc., can solve problems such as fire, insufficient protection performance, and battery short circuit, and achieve the effects of improving safety performance, improving protection, and avoiding damage

Active Publication Date: 2022-03-04
智己汽车科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

The decisive factor for the development of electric vehicles is the battery. On the one hand, it is the capacity of the battery, and on the other hand, it is the safety of the battery. The safety of the battery includes the performance of the battery itself and the protection performance of the v...
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Method used

[0046] The above-mentioned floor assembly is suitable for electric vehicles, wherein the battery frame 400 for accommodating the battery is placed at the bottom of the floor body 100, and the beam assembly 300 is placed at the top of the floor body 100 and is located at the bottom of the battery The front, middle and rear ends of the frame 400 , and the threshold 200 is placed on both sides of the battery frame 400 . In other words, the beam assembly 300 and the sill 200 surround the battery frame 400 on the four sides and on the top, forming a 360° surround on the battery, and resisting possible damage to the battery from various angles and positions. Collision, so that the 360° protection of the battery can improve the safety performance of the battery, and prevent the battery from being damaged as much as possible when the electric vehicle collides with the outside world.
[0047] Further, the beam assembly 300 is arranged on the top of the floor body 100, which can firstly provide lateral support for the electric vehicle, secondly provide mounting points for the seat, and finally increase the accommodation The capacity of the space leaves enough space for the arrangement of the battery, which is beneficial to increase the driving range of the electric vehicle.
[0048] Preferably, since the accommodating space at the bottom of the floor body 100 is large, the shape and size of the battery frame 400 can be set according to the actual needs of the electric vehicle, and the accommodating space can be fully utilized, It is also possible to use only part of the accommodation space, which has high flexibility.
[0051] FIG. 3 is a cross-sectional view taken along line A-A in FIG. 2. As shown in FIG. 3 , in a preferred embodiment, a hollow cavity extending laterally of the electric vehicle is defined between the front floor middle beam 322 and the floor body 100 , and the hollow cavity can be It acts as a buffer to increase the protection of the battery.
[0052] In a preferred embodiment, the threshold 200 includes a first body 210 and a buffer beam 220 disposed in the first body 210, the buffer beam 220 extends longitudinally of the electric vehicle and at least Part of the position intersects the extension line of the hollow cavity in the transverse direction of the electric vehicle. The buffer beam 220 can increase the rigidity of the door sill 200 and improve the impact resistance of the door sill 200 , and the deformation of the buffer beam 220 can absorb part of the collision force, thereby enhancing the protection of the battery. And setting the buffer beam 220 to intersect with the extension line of the hollow cavity can make the force transmission path continuous, so that the impact force acting on the threshold 200 can be smoothly transmitted to the front floor middle beam 322 , which is beneficial to decompose the collision force.
[0053] In a more preferred embodiment, the bottom of the buffer beam 220 is on the same plane as the floor body 100, and the top of the buffer beam 220 is on the same plane as the crossbeam 322 in the front floor, that is , the buffer beam 220 is facing the hollow cavity. The buffer beam 220 includes a hollow second body 221 and at least one reinforcing rib 222 disposed in the second body 221 . By arranging the buffer beam 220 to face the hollow cavity, and setting the buffer beam 220 to be hollow and providing reinforcement ribs 222 therein, it is beneficial to the stability of the threshold 200 as a whole. The door sill 200 is not easy to overturn when the vehicle collides sideways with the outside, which can further improve the safety of the collision.
[0056] More specifically, there is a preset gap between the threshold 200 and the battery frame 400, which is a reserved installation and buffer distance. On the one hand, it is convenient to connect the battery frame 400 and the threshold 200 connection, on the other hand, when a collision occurs, the deformation of the threshold 200 within the preset distance will not affect the battery, so that the safety performance of the battery can be further improved.
[0057] Continue referring to FIG. 3, in a further embodiment, the battery frame 400 includes a third body 41...
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Abstract

The invention discloses a floor assembly for an electric vehicle, and relates to the technical field of vehicle chassis. The floor assembly comprises a floor body, wherein a containing space is defined at the bottom of the floor body; the battery frame is arranged in the containing space and connected with the bottom of the floor body, and the battery frame is used for containing the battery; the doorsill is arranged on the two sides of the floor body, and the bottom of the doorsill extends to the side edge of the battery frame; the cross beam assembly is arranged above the floor body, the cross beam assembly comprises a front wall middle cross beam, a front floor cross beam, a rear floor cross beam and a spare tire pit floor cross beam which are sequentially arranged from front to back and extend in the transverse direction of the electric vehicle, and the front wall middle cross beam corresponds to the front end of the battery frame; and the spare tire pit floor cross beam corresponds to the rear end of the battery frame. The floor assembly provided by the invention can provide enough protection for the battery.

Application Domain

Electric propulsion mountingUnderstructures +2

Technology Topic

Electrical batteryElectric vehicle +4

Image

  • Floor assembly for electric vehicle
  • Floor assembly for electric vehicle
  • Floor assembly for electric vehicle

Examples

  • Experimental program(1)

Example Embodiment

[0040] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the protection of the present invention.
[0041] It should be noted that the present invention relates to the description in the direction in the direction of "upper", "lower" "top" "top" "top" "top" "top" "top" "top" "top" "bottom" "" upper "," lower "" bottom ". The relationship between the orientation or position is defined only, only to facilitate the description of the present invention and simplified description, rather than indicating or implying that the structure must be constructed and operated in a particular orientation, and therefore, it is not understood to limit the limitations of the present invention. In the description of the invention, the meaning of "multiple" is more than two unless otherwise specifically defined.
[0042]In the description of the present invention, the term "mounting", "connected", "connection", in the terms, unless otherwise expressly specified and defined,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, However, it can be directly connected or indirectly connected by an intermediate medium, which can be in the interior of the two components. The specific meaning of the above terms in the present invention will be appreciated to those skilled in the art.
[0043] In the description of the present invention, "lateral" represents the left-right direction of the vehicle, "longitudinal" represents the front-rear direction of the vehicle, "vertical" represents the height direction of the vehicle, "front end" refers to the vehicle's head, "backend" refers to the vehicle The tail.
[0044] In the embodiment of the present invention, there is a description of "first", "second", etc., the description of the "first", "second", etc. is only used to describe the purpose, and cannot be understood as an indication or implies its relative Importance or implicitly indicated the number of technical features indicated. Thus, the features of "first", "second" are defined, and at least one of the features may be indicated or implicitly.
[0045] figure 1 A structural diagram of a floor assembly for an electric vehicle is provided by one embodiment of the present invention. Such as figure 1 As shown, the present invention provides a floor assembly for an electric vehicle, the electric vehicle comprising a battery, and is powered by the battery. The floor assembly includes: a floor body 100, a battery frame 400, a threshold 200, and a beam assembly 300. The bottom of the floor body 100 defines a housing space. The battery frame 400 is placed in the receiving space and is connected to the bottom of the floor body 100, the battery frame 400 for receiving the battery. The sill 200 is disposed on both sides of the floor body 100 and the bottom extends to the side of the battery frame 400. The beam assembly 300 is disposed above the floor body 100, the beam assembly 300 including a front-rearwardly extending front-beam 310 along the laterally extending front of the electric vehicle, and the front floor beam 320, The floor beam 330 and the spare tire pit floor beam 340 correspond to the front end of the battery frame 400, and the backpit floor beam 340 corresponds to the rear end of the battery frame 400.
[0046] The above floor assembly is applied to an electric vehicle, wherein the battery frame 400 for receiving the battery is placed at the bottom of the floor body 100, the beam assembly 300 being placed on top of the floor body 100 and located in the battery frame 400. The front end, the middle and the rear end, and the smell 200 is placed on both sides of the battery frame 400. In other words, the beam assembly 300 and the threshold 200 surround the battery frame 400 at around and top, the battery is surrounded by 360 °, from the respective angles and position resistance to the battery. The collision is collided, and the battery is protected by 360 °, and the safety performance of the battery can be improved, and the battery is avoided as much as possible when the electric vehicle is collided with the outside.
[0047] Further, the beam assembly 300 is disposed at the top of the floor body 100, first possible to provide lateral support for the electric vehicle, followed by providing a mounting point in the seat, and finally increases the capacity of the accommodation space. It is sufficiently space for the arrangement of the battery, facilitating the renewal mileage of the electric vehicle.
[0048] Preferably, since the receiving space of the floor body 100 is large, the shape and size of the battery frame 400 can be arranged according to the actual needs of the electric vehicle, and all of the accommodating space can be utilized, or only only The accommodation space is highly flexible by the portion of the portion.
[0049] Continue figure 1 In a specific embodiment, the floor assembly further includes two rear longitudinal beams 520, and the two rear stringers 520 are symmetrically disposed on both sides of the floor body, and each of the rear Both the beam 520 is connected to the threshold 200, which includes left thresholds and right thresholds, and the two rear hinges 520 are respectively connected to the left threshold and the right threshold. The front floor beam 320 includes the front floor front beam 321, the front floor, the beam 322 and the front floor rear beam 323, the rear floor cross member 330 includes a rear floor front beam 331, the rear floor in the beam 332 and the rear floor rear beam 333, the stump pit floor beam 340 includes a spare tire front beam 341 and a spare tire rear beam 342. The front floor front beam 321, the front floor rear beam 322, the front floor rear beam 323, and the rear floor front beam 331 are connected to the threshold 200, the rear floor in the beam 332, the rear The rear beam 333, the backbone front beam 341, and the backbone rear beam 342 are connected to the rear stringers 520. Specifically, the front floor front beam 321, the front floor rear beam 322, the front floor rear beam 323, and the rear floor front beam 331 have opposite ends, and each opposite ends and Left threshold and the right threshold connection; the rear floor in the rear beam 332, the rear beam 333, and the backbone front beam 341 and the backbone rear beam 342 have opposite ends, and each The opposite ends are connected to one of the rear stringers 520, respectively. By setting the front and rear multi-beam on the floor body 100, the protection of the top of the battery can greatly improve the protection of the top of the electric vehicle; on the other hand, such as figure 2 As shown in, the hollow arrow indicates the transfer direction of the collision force, and when the electric vehicle is laterally collided with the outside, the sill 200 disperses the collision force to the rear longitudinal beam 520, the front floor front beam 321, the front floor rear beam 322, the front floor rear beam 323, and the rear floor front beam 331, the rear collision force 520, then dispersing the collision force to the rear floor 332, said The rear floor rear beam 333 and the backbone front beam 341 and the backbone rear beam 342, and then transmit the collision force to each position of the floor body 100, and the collision force is in place. The peripheral dispersion of the battery avoids a certain point of stress, so that the overall structure of the floor assembly is complete, so that the collision force can be avoided to the battery, which greatly enhances the protection of the battery. Performance improves the safety performance of the electric vehicle.
[0050] Further, the front floor front beam 321, the front floor rear beam 322 and the front floor rear beam 323 also provide a fixed point for the seat of the electric vehicle to facilitate mounting the seat.
[0051] image 3 Be along figure 2 Cross-sectional view of the A-A line. Such as image 3 As shown in a preferred embodiment, the front floor defines a hollow hollow cavity that extends laterally along the transverse direction of the electric vehicle in the front floor, and the hollow cavity can be buffered. The role increases protection against the battery.
[0052] In a preferred embodiment, the sill 200 includes a first body 210 and a buffer beam 220 disposed within the first body 210, which extends along the longitudinal direction of the electric vehicle and at least part of the position. The hollow cavity intersects an extension line in the transverse direction of the electric vehicle. Through the bust beam 220, the stiffness of the threshold 200 can be improved, and the resistance to collision resistance of the threshold 200 is improved, and the deformation of the bust beam 220 can absorb partial collision force, so that the protection of the battery can be enhanced. The bust beam 220 is arranged to intersect the extension line of the hollow cavity, which can be continuously transmitted to the collision force acting on the threshold 200 to the front floor in the front floor. 322 It is advantageous to decompose the collision force.
[0053] In a more preferred embodiment, the bottom portion of the bobbin 1120 is in the same plane with the floor body 100, and the top portion of the cushor beam 220 is in the same plane in the front floor, that is, said Buffer beam 220 is positating the cavity of the hollow. The bober 220 includes a hollow second body 221 and at least one reinforcing rib 222 disposed within the second body 221. By being paired with the middle cavity of the bust beam 220, and the bust beam 220 is disposed in hollow and disposed in it, it is conducive to the overall stability of the threshold 200, in the electric When the vehicle is lateral collision when the vehicle is in the outside, the threshold is not easily flipped, and the collision safety can be further improved.
[0054] Further, the second main body 221 is in contact with the inner wall of the first body 210 adjacent to one side of the battery frame 400, the second main body 221 runs through the first body 210 in the longitudinal direction of the electric vehicle. The reinforcing rib 222 is coupled to the second main body 221 in an vertical arrangement of the electric vehicle.
[0055] Further, the first body 210 is adjacent to the battery frame 400 and the rear longitudinal beam 520 is thermoformed steel, the heat-formed steel hardness is large, high resistance to collision, is not easy to external force There is a deformation, so it is not squeezed to the battery. The bust beam 220 is an aluminum extruded profile which can be freely designed according to performance requirements due to the characteristics of the extrusion process to ensure their stiffness and strength. Also, the aluminum density is low, and it can be reduced, which is advantageous for realizing light quantification of the vehicle.
[0056] More specifically, the sill 200 has a preset gap between the battery frame 400, the preset gap is a reserved mounting and buffer distance, and the battery frame 400 is connected to the threshold 200. On the other hand, the deformation of the threshold 200 in the preset distance does not affect the battery when a collision occurs, so that the safety performance of the battery can be further enhanced.
[0057] Continue image 3 In a further embodiment, the battery frame 400 includes a third body 410 and a connection structure 420 coupled to the third body 410, the third body 410 for receiving the battery, the connection Structure 420 is disposed in the preset gap and is used to connect the battery frame 400 to the threshold 200. That is, the battery frame 400 is connected to the bottom of the floor body 100 on the other hand, and the other hand is also connected to the threshold 200, and the stability of the battery frame 400 can be increased, which increases its pair of batteries. The carrying capacity is conducive to increasing the renewal mileage of the electric vehicle.
[0058] Preferably, the first body 210 projection projeps into the direction of the battery frame 400 toward one side of the battery frame 400, and the bottom of the convex structure 21 is connected to the connection structure 420, The top is connected to the floor body 100, and the connection method can be screw or welding or the like. The connection between the sill 200 and the battery frame 400 is realized by the convex structure 211, and the other hand also increases the buffer space in the first body 210, which can provide more secure for the battery. Protect. In order to increase the stability between the first body 210 and the battery frame 400, a reinforcing plate 212 is provided at the bottom of the convex structure 211.
[0059] Preferably, the first body 210 is provided in hollow corresponding to the battery frame 400, which can also increase the capability capacity of the threshold 200, that is, the safety performance of the battery can be improved.
[0060] In a specific embodiment, since the door hole is higher for collision requirements, the floor assembly described in this application includes two reinforcing beams 800 extending in the longitudinal direction of the electric vehicle, and two The reinforcing beam 800 is symmetrically arranged on both sides of the floor body 100, preferably, both of which are located at the top of the floor body 100 or the threshold 200. Both the reinforcing beam 800 and the respective beams are formed, and the structure is stabilized, and the lateral collision performance of the electric vehicle can be further improved.
[0061] Continue figure 1In a more specific embodiment, the floor assembly also includes two mirrored SHOTGUN 600, two front stringers 510, two, extend along the longitudinal direction of the electric vehicle and arranged in the floor body. The front floor sled plate 540 above 100 and a floor disposed above the floor of the floor body 100, two of the front floor sled plate 540 is symmetrically disposed on both sides of the passage 700 in the floor. The two ends of the SHOTGUN 600 are connected to one end of the smell 200 and the front stringers 510, respectively from the floor body 100, and the front stringers 510 are also connected to the front beam 310. Further, the SHOTGUN 600, the front stringer 510, and the front beam 310 form the front structure of the floor assembly, mainly used to share the collision force from the front side of the electric vehicle. Such as Figure 4 As shown in, the hollow arrow indicates the direction of transfer of the collision force, and the collision force transmitted by the electric vehicle is dispersed to the floor passage 700 through the SHOTGUN 600 and the front longitudinal beam 510, and the threshold 200, The front floor sled plate 540 and the rear stringers 520 are decomposed by the positive collision force. And the front floor sled plate 540 and the floor passage 700 can support the front structure to ensure that the battery is not oppressed by collision force from the electric vehicle. Since the electric vehicle has no engine, the front portion of the adhesive space is more than the side, and therefore there is no need to arrange too much longitudinal beam to protect the battery, by the SHOTGUN 600 and the front longitudinal beam 510 of the present application. Upstream can absorb most collision power to ensure the safety of the front direction of the battery.
[0062] Figure 5 Be along Figure 4 Cross-sectional view of the B-B line. Such as Figure 5 As shown, the front end of the channel 700 extends to the front floor front beam 321, which can provide mounting points for the sub-dashboard.
[0063] Preferably, the SHOTGUN 600 on the same side is preferably formed substantially a triangular structure between the front stringers 510 and the floor body 100. The floor assembly also includes two symmetrical arranged rear floor lever 530 and two symmetrical arrangement of spatant pit back longitudinal beams 550, and both ends of the rear floor lead beam 530 respectively and the rear floor front beam 331. And the rear floor rear beam 333 is connected, and both the rear floor lead beam 530 are cross the rear floor cross member 332. After the backrest pit, the longitudinal beam 550 is disposed at the rear end of the backbone of the backward beam 342. The triangular structure can be absorbed from the collision force from the front side of the electric vehicle, and can also decompose the collision force of the front side into two channels, respectively, to the threshold 200 and the floor body 100, The threshold 200 is transmitted to the rear stringers 520, the floor body 100 transmits the collision force to the front floor sled plate 540, the floor in the channel 700, the rear floor lead beam 530 and After the tire pit, the tunnel 550 is described, so that the transfer path of the collision force can be continuous, and the positive collision force can be transmitted from the front end of the electric vehicle to the rear end, and is constantly absorbed by each longitudinal beam during transmission. And the collision force can be absorbed between the collision force, and the collision resistance of the electric vehicle can be increased to increase the resistance resistance of the electric vehicle to increase the resistance of the electric vehicle. And rely on the rear floor lead beam 530 and the backburst, the longitudinal beam 550 can increase the longitudinal carrier capacity of the electric vehicle rear portion to avoid the rear deformation.
[0064] In a further embodiment, the floor body 100 includes a front floor and a rear floor, the front floor front beam 321, the front floor, the beam 322, and the front floor rear beam 323, The rear floor is provided on the rear floor front beam 331, the rear beam 332 and the rear floor rear beam 333, the front surface of the front floor, and the rear of the front floor does not need to increase additional additional The longitudinal beam is conducive to increasing the arrangement space of the battery under the floor body 100, and facilitates the convenience of passengers to enter and exit, and improve ride comfort.
[0065] The technical solutions of the present invention have been described in detail herein, and the specific examples are described herein to illustrate the structure and embodiments of the present invention, and the above embodiments are intended to help understand the method of the invention and their core ideas. At the same time, the idea of ​​the present invention will be changed in terms of the specific embodiments and applications of the present invention. In summary, the contents of this specification should not be construed as limiting the invention.

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